Solar Cells

It is not uncommon to see solar cells used for lighting in cedar saunas.  This is especially true for outdoor saunas.  Using solar energy to light and heat your outdoor relaxation devices like pools and hot tubs just makes sense, or cents depending on how you look at it.  Get it?  Sense and cents.....because solar energy will save you so much money!

    100 Watt Solar Panel

    Carl Said:Is it possible for my Solar panel to supply half the energy for my fridge?We Answered:You can install a small grid-tied system that provides a small amount of power into your general pool of electricity. You can't easily direct it to just your fridge, it will just be available power for your home. There is a minimum voltage that grid-tied inverters need, so a very small system is tough to do. (A new inverter that can be used with one panel is available, but they are sold out until next year). Here is the smallest...

    12 Volt Solar Panels

    Dolores Said:My solar panels specs are 12 volts and 60 watts. What does 60 watts mean?We Answered:I am sure Violet has some very good web sites Your spec sheet data should also mention max current. As you measured 22V and 10A does not mean you can use-it at 6V10Amps. It will die young if you do. But most likely 12V at 5Amps is perfect. It is your regulator circuit that has to limit the consumption. This is part of the charger controller’s job. Hope this properly answers your questionGordon Said:I have 2 solar panels one is 100 watts 12 volts the other is 15 watts 12...

    12v Solar Panel

    Lynn Said:Is it safe to have 12v battery charged with solar panel inside car?We Answered:I'd worry more about overcharging that tiny battery and killing it. Check the manufacturer's direction, but one rule of thumb is max charge rate s 1/10 the capacity, which in this case is 0.13 amps or 130 mA. So 130 mA for 10 hours should recharge it if it started out flat. Any longer time or higher current will overcharge it and cause damage. If your charge controller is good enough and sized for that battery, you should be ok. ....

    3d Solar Cells

    Adrian Said:Science project help?We Answered:try play dough or clay...

    3x6 Solar Cells

    Robert Said:Confused over watt, volts, ampers?We Answered:I would reconsider your project for the following reasons A) your solar powered cell produces DC, mains is AC. This is no use to anything except filament lamps. B) the quantity of cells to achieve this voltage is normally cost prohibitive C) you would also require these to first charge batteries so as to maintain a constant voltage D) you would then need a lot of rechargeable batteries to achieve 120VLance Said:Numbers behind Solar Panels?We Answered:For comparison, 36 of these make a normal 12V x 50W panel. Note they are not tabbed. This means you have...

    A Solar Cell

    Casey Said:would the performance of a solar cell change if its contained in a vacuum?We Answered:Yes. In a vacuum the Si could still radiate heat, but not lose it through convection, so in the absence of active cooling the Si would run hotter and the performance of the cells would be somewhat degraded. uBecky Said:How to convert a machine that used a dry cell to solar cell?We Answered:What is the voltage of the machine? What is the Amps or the Watts required by the machine? How long does the machine need to be ran at any one time and will the sun...

    About Solar Cells

    Melissa Said:About how large an area of solar cells would be needed to produce 2kWe of output power at noon on a clear day?We Answered:Taking a look at the spec sheet linked below, the panel is about 6 1/2 feet by 3 1/4 feet, and produces 270 watts peak. That means you'd get 225 watts or so under realistic conditions, so you'd need perhaps 8 or 9 of these. If a house has a south facing roof, the area of the roof is rarely a limiting factor, by the way. Usually, it's either cost, or power needs that limit...

    About Solar Energy

    Johnnie Said:What are your opinions on solar energy?We Answered:Solar Panels are a very good choice for our economy today. We can save thousands of dollars a year of electric bills. But they are not practical to buy because these cost thousands of dollars. For the brand new solar panels and installation, it cost more than $20,000 which is not good. They also offer "buy now pay later" option but it is not good either because it puts you in debt. The solution is, why not do it yourself. There are do-it-yourself guides that shows you step-by-step on how to make...

    About Solar Panels

    Becky Said:How much area would solar panels that produce 3,300 MW cover?We Answered:The other answer gave you a reasonable answer for a peak power of 3.3 GW. YOU said daylight hours only. Now you want to talk 24 hours supply. You would need 3 to 5 times more solar power, so therefore 3 to 5 times more space. But batteries are not suitable to store this amount of power, so you would need perhaps pumped water storage, with a large reservoir, dams, and water turbines and generators and all of that, probably more expensive than the panels themselves. But why 24...

    About Solar Power

    Kristin Said:is solar power easily made into electrisity?We Answered:Turning solar energy into electricity is not particularly difficult, in the sense that you can buy equipment to do exactly this. The reason we don't see it used more often is the cost. Amortized over time, solar electricty costs maybe 30 to 50 cents a kilowatt-hour in the US, while electricity from the power company can be half that, or even a third. The main cost driver for solar electric panels is the cost of Silicon, the same material used to make computer chips. There is a shortage of properly-refined...

    Advantages Of Solar Cells

    Vanessa Said:What are the advantages and disadvantages of solar cells?We Answered:Here's the article that specifically answers your question. Enjoy. http://renewableenergyarticles.blogspot.…Carmen Said:what are the disadvantages and advantages of using a solar cell?We Answered:Advantage 1. After you pay for a solar cell once, you can use it over and over again basically for free. Advantage 2. Sunlight is a 'renewable resource' rather than an 'nonrenewable resource' like oil, which takes millions of years to replace Advantage 3. There are no toxic byproducts, like smoke from a coal-burning power plant Disadvantage 1. Only small amount of power out of each solar cell Disadvantage 2. Work badly at...

    Advantages Of Solar Panels

    Jean Said:need help with science homework?We Answered:Advantages: 1) Once built the cost of upkeep is relatively low 2) Environmentally friendly (not that non-renewables are as harmful as they are made out to be) Disadvantages: 1) Extremely expensive intial build costs, if the plant only produces 2 megawatts (about 1% of a common gas turbine) it will take over 100 years to pay for itself. 2) Very low output. A plant can cover 2 acres of land and only produce 2 megawatts, the same land could have 6 gas turbines on it and produce over 1000. 3) Energy sources are not always present. The sun goes down...

    All About Solar Energy

    Kyle Said:We all have 2 think about Solar Energy for the sake of environment....?We Answered:and the life of our future generations. We also have to think about other renewable energy sources.Elmer Said:the area that i will be moving to has frequent power faliures. would like to know all about solar energy?We Answered:my above answerer is totally wrong and its cost-effective because generators requires lot of fuel ..... Use of four times a generator and its cost can give the electricity by the solar power panels for 10 yrs almost ... and its also a renewable source of energy....

    Application Of Solar Cells

    Carole Said:What do you put in the application section of a science fair display board?We Answered:I think you would do better if you put this question in the science category.Frances Said:what do you put in the application section of a science fair display board?We Answered:how does it affect the world around you? why is there a point to the project? tell them why it was something important to find out. how can it be used to help the future designs of solar cells?...

    Application Of Solar Energy

    Viola Said:Do you think a resource based economy is a good solution to humanities problems?We Answered:I don't know where you copy/pasted that from but it sounds like a bunch of " intellectual look how smart I am bull **** " to me.Chris Said:The 14 most important scientific problems.?We Answered:Advance personalized learning This should resonate with anyone who has spent any time in the science sections of Yahoo Answers. Clearly the public schools fail at teaching science, and everything else except social engineering. The majority of children in developed nations have computers and internet access. I wish someone were...

    Applications Of Solar Cells

    Gerald Said:What is "dummy cells" in solar cells applications means?We Answered:I believe they are test cells, used for test purposes, in models, and not for actual say, solar panels.Beverly Said:watt - kilo watt usage?We Answered:Watts are a unit of power. Power is energy per unit time. By definition, a watt is a joule per second. So the answer to your question is that a 60 watt light bulb requires 60 watts to power. It requires 60 joules per second. A 10 watt solar panel produces 10 watts, or 10 joules per second. You will frequently hear the electricty company talk...

    Applications Of Solar Energy

    Mark Said:Help in summarizing this?We Answered:In the body of your paper it would have been good to bring up the topic of rechargeable batteries. The repeatable uses of these not only saves resources from the dump, but also saves people from having to change batteries all the time. Rechargeable batteries have been used for years in small appliances such as radios, flashlights, cellphones, pagers, etc. Rechargeable batteries are used in conjunction with solar or wind electricity generation to store energy for use when they are not generating....

    Back Contact Solar Cell

    Lewis Said:Small solar panel, connecting wires to the output?We Answered:you may not be getting a good contact, take your digital multimeter and read it with that and if your getting good volts this is you Contact with the wire,this panel should hit around 15 volts i Had a panel with the same problem i connected the wires with conductive Silver EPOXY ITS A TWO PART GLUE WITH REAL SILVER IT DID THE JOB, hope this helps www.solarcells101.com...

    Best Solar Cell

    Samuel Said:what is the best kind of solar cell and how do you make it?We Answered:here are couple of interesting articles that might give you more clues http://www.renewables-info.com/interesti… http://www.renewables-info.com/drawbacks…...

    Best Solar Cells

    Earl Said:Why are the best solar cells only 12% efficient? What's the technological impasse?We Answered:Because energu conversio depends on what form of energy is going into what form ...remember work can be conveted @ 100% efficiency to heat ...but heat cannot be converted to mechanical work with 100 % efficiency . ENTROPY plays a role here ! Same is true with the energy in photons to it's conversion into electricity .Entropy is involved ! Ok lemme be a little more clearer ; it is easy to convert an organised form of energy to a disorganised form of energy ...like heat is a...

    Best Solar Panels

    Robin Said:solar panels, which are the best?We Answered:wait 2-5 years to buy solar panels, trust me i build, design, and install them....

    Broken Solar Cells

    Gloria Said:Any ideas for beginner electronics hobby projects?We Answered:Take a look at these websites: http://www.hobbyprojects.com/ http://www.gregsbasicelectronics.com/ http://electronics-lab.com/projects/ If you need parts, try Digi-Key.com or Mouser.com Remember: Always respect electricity, especially AC. And, try not to burn yourself with the soldering iron. Have fun!Geraldine Said:Can a broken solar cell be fix to produce it original volts and watts?We Answered:If you use something that is semi-conductive you will be introducing a resistor into the circuit and thus converting some of your electrical power into heat so you won't be getting the original volts/watts. Your best bet to return to the original power production would be a very...

    Build A Solar Cell

    Greg Said:Do you agree that the Bear/Sterns bailout is like putting more gas in a car with no wheels?We Answered:Noooooo..... It's actually more like setting a car on fire with gas while it's parked inside the garage of a condo!!! Althought the fire may be in one part, it will quickly spread to the other units. And before you know it, the whole structure has gone up in smoke...! The bail out of B&S is only a stop gap measure. In time, we are going to see the flames rise from other parts of the financial structure which some thought...

    Build Solar Cell

    Glenda Said:What kind of wires do I use if I want to build a solar car?We Answered:In this case any plastic insulated hookup wire will be adequate. Use the wires on the solar panels if they have them as a guide for how big they need to be. In a full sized car the wires should be rated to carry the maximum current that the solar panels can produce. The size can be found from wire tables. I would go for flexible (multi-strand) wire as used in car wiring harnesses. It would make sense to go for the next size up,...

    Build Solar Cells

    Erika Said:What harm do we do to the atmosphere and ecology when we build batteries and solar cells and flourescent bulbsWe Answered:Please relax and calm down for a minute. Chill out. I don't know where you got this idea, but you are mistaken. You have been misinformed. The manufacture of batteries, solar cells, and fluorescent bulbs is good for the environment, not bad for it. These products are designed to be part of energy systems that consume LESS poisonous fuels and produce LESS environmental poison than the systems we use now. LESS greenhouse emissions and chemical exposures that we have...

    Build Solar Panel

    Gabriel Said:if i build a solar panel that produces 600 watts I could run 10 bulbs 60 watts each correct?We Answered:Kind of close; your wiring will produce some resistance, so therefore you are only getting close, but it will reduce bill considerably.Felix Said:how can i build a solar panel?We Answered:Hehe, if you want to build your own solar panel that looks like what you see on buildings, etc, you will probably need to be a multi-millionaire. Here is a quote from the first link in my sources list: "The high-efficiency solar cells you can buy at Radio Shack and other...

    Build Solar Panels

    Ella Said:How much time and effort will it take to retrain laid off office workers to build wind mills and solar panels?We Answered:The only energy industry that operates without subsidies is the nuclear industry. They are good paying jobs and it would take a couple of years to train at least to the technician level to work there. Wind mills, aren't the saviors. They break, sometimes explode, they are dangerous and destroy ecosystems. Solar is too inefficient to be used large scale. This imaginary energy source the Dems keep touting is a hoax.Beatrice Said:how do you build solar panels?We Answered:There are...

    Build Your Own Solar Cell

    Ted Said:A question for all intelligent people?We Answered:I'm not going to bother reading all of that but I'll skim and try to answer what I think you're going after. Yes in the miller urey experiments they got a racemic mixture of amino acids. Both can form proteins, both are completely functional. The fact that nearly all life today uses LH is just more evidence for common decent. A long time ago there were both LH and RH "organisms", but LH for whatever reason got lucky and out-competed the RH "organisms" taking the majority of the available resources and RH went extinct. Long...

    Build Your Own Solar Cells

    Claire Said:science fair topic name?We Answered:I would say a hand crank music box, but they have those already..... perhaps you could invent a hand-operated coffee maker or something like that? A solar oven, etc....

    Build Your Own Solar Panel

    Henry Said:Does Earth4Energy Really Work?We Answered:I have a writeup on this scam here http://www.nlcpr.com/Deceptions6.html You can build a windmill at home from scratch, but it is *not* trivial. The best book is: Homebrew Wind Power A HANDS-ON GUIDE TO HARNESSING THE WIND Dan Bartmann & Dan Fink Foreword by Mick Sagrillo ISBN: 978-0-9819201-0-8 Published by Buckville Publications LLC This book is complete. You don't need anything else for small scale wind power. As far as making your own solar panels, forget it. It is the cells that are expensive, and assembling them yourself into panels will save you very little. You also need batteries, inverter, charge controller...

    Build Your Own Solar Panels

    Margie Said:Many people here think that the desert southwest is a good place to build solar hydrogen plants.?We Answered:What are you crying about? I live in Houston, Texas where there are refineries up and down the coast. These refineries generate products that are shipped all over the country as well as many parts of the world. Where do you think all of the particulate matter that is spewed out of those refineries goes? some of it in my backyard. So the next time you pick up a can of spray paint, bug poison or any number of other products, just...

    Building A Solar Cell

    Cecil Said:compare a plant cell as a building?We Answered:nucleolus - staff ribosomes - janitor golgi apparatus - transport machine lysosome - drainage system mitochondria - power plant for building.Raul Said:i wat to built to a solar cell so that i can use to lit a bulb so pls say me steps to built and use a solarcel?We Answered:You buy solar cells - the making of them is very high technology requiring high temperatures and special atmosphere environments....

    Building Solar Cells

    Floyd Said:Can Solar Panels be Charged by CFL lights?We Answered:Homebrewer isn't quite right. The figure given for the efficiency of solar panels is usually for the Sun's spectrum. CFLs peak at a few specific wavelengths. Depending on the bandgap of the doped semiconductors used in the panel, it might be more or less efficient at converting CFL light into energy. However, you can't run a CFL off a solar panel powered by the same CFL. Think of the energy flows - some of the light from the CFL goes into the panel. Some of this is converted to electricity*, then you...

    Building Solar Panels

    Anne Said:Doesn't building solar panels use more energy then we get back from it?We Answered:Here is the energy payback time, in years, of various solar panel technologies. The energy payback time is time required for the panel to make up for the energy it required to be produced. The range is from 2-8 years: http://www.energybulletin.net/node/17219 Another study which found a similar range: http://www.solarbus.org/documents/pvpayb… Since panels can last 20-25 years, that means they are producing much more energy than it took to create them. And, as we create more, with economies of scale the efficiency will go ever higher and the payback times will become ever...

    Buy Solar Cell

    Benjamin Said:where can i buy solar cell in chennai?We Answered:Richie Street in Mount Road. Hope you know where Richie street is......

    Buy Solar Cells Cheap

    Pedro Said:What U.S. Political Party should I join?We Answered:go libertarian. peoples rights are always first....

    Buy Solar Cells Online

    Tom Said:I have a Earth Day Quiz from an online website I need help with?We Answered:Wasn't this from Gaia Online? Ok,here goes: 1)A 2)C 3)D 4)B 5)C 6)B 7)E 8)B 9)D 10)C...

    Buy Solar Cells

    Kent Said:Where can I buy small solar cells in Metro Manila?We Answered:That's tricky and the most convenient spot is probably electronics or outdoor equipment. That is a store right? ^_______^ Solar Cells are little expensive unless it's good where you live. Hope it helps!Mike Said:Where do i buy multicrystalline solar cells?We Answered:Commercial solar cells made from multicrystalline silicon are normally far less efficient than more expensive ones made from single-crystal silicon, but they're cheaper. The 27 percent improvement will bring multicrystalline cells to efficiencies about the same as single-crystal cells--around 19.5 percent--at the lower costs. So, if the technology successfully scales up, Sachs...

    Buy Solar Energy

    Ruben Said:how i can know more about solar energy and buy things related?We Answered:Check out some websites about it. However, solar energy collectors, etc., are pretty expensive....

    Buy Solar Panel

    Peter Said:where do i buy a small solar panel it should sbe the size of a peice of toast around edmonton?We Answered:In Ohio, toast comes in 10cm by 10cm pieces. How big are pieces of toast around Edmonton? ;) Try an electronics store such as your version of Radio Shack. You might also take a look at heating and plumbing companies. After that, I'd look on the net. As for your particular use for the solar panel, you might find something on the net. I've placed a couple links here, but their definition of...

    Buy Solar Panels

    Christy Said:how much does it cost to buy solar panels?We Answered:If you means a house-sized installation (thousands of watts), then the panels cost about $4 a watt, so $8000 for 2000 watts worth of panels. But then, you need some other incidental parts, and someone has to install them. The installed price could be as high as $8-10/watt. On the positive side, many areas have a federal and/or state tax credit or rebate. I know someone who ended up with a final price of $3/watt after getting back all the rebates. The best way to find out about what's...

    Buying Solar Cells

    Holly Said:Where can I buy Solar cells in Chicago?We Answered:Do you mean "solar cells" or do you mean one or more solar panels (which have many cells). Since a solar cell is what you asked for, just go to Radio Shack. http://www.radioshack.com/search/index.j…Kristen Said:where can we buy solar cells here in cebu?We Answered:I can't say for sure i'm not sure where Cebu is but if there aren't any places in your town you can always buy them from the Internet, maybe do an Internet search for solar cells on Google or Yahoo and see for yourself.Penny Said:When to buy Solar cells?We Answered:There are...

    Buying Solar Panel

    Allan Said:is buying solar panel worth the cost ?We Answered:SOME SAY IT IS NOT WORTH IT, PERSONALY MY OPINION IS IT IS WORTH INVESTMENT IN THE LONGER TERM. ALTHOUGH 'START UP' FEES AND COSTS ARE GREAT. THE COST ON THE ENVIOMENT IS ALSO LESS....

    Buying Solar Panels

    Craig Said:buying solar panel for charging phone and plugging in speakers ho many watts do i need?We Answered:Look at the power supply of your phone. It will have a rating like with Volts and Amps, like: 5 V, 0.7 A Multiply the two, that's your power: 3.5 W So, in this example, your solar panel needs to provide 5V and at least 0.7 A -(More Amps is OK)...

    Calculator Solar Cell

    Ramona Said:In my calculator there is a solar cell what does it do and where is it connected you think?We Answered:Solar cells use solar energy or generally the energy of the light and transform it to electricity. The solar cell is some sort of semi conductor, that under the influence of light it forces the electrons to move in a certain way causing voltage differential and eventually current. Also it is connected to the battery in a parallel way, so that each battery pole is connected to each cell pole and altogether they're connected to the device's poles. This ...

    Carbon Nanotubes Solar Cells

    Vanessa Said:Carbon nanotubes as solar cells?We Answered:Carbon nanotubes--tiny strawlike cylinders of pure carbon--have interesting electrical properties. Indeed, they have already been used to manufacture tiny transistors and nanowires. Now scientists say the minuscule cylinders may one day find their way into solar cells. Researchers report in the latest issue of the journal Angewandte Chemie International Edition that they have succeeded in tweaking the tubes so that they supply electrons when exposed to visible light. To make the altered nanotubes, Dirk M. Guldi of the University of Notre Dame and his colleagues attached molecules of ferrocene to their walls. Made up of...

    Cell Phone Charger Solar

    Alice Said:where can i order a solar ville battery charger ?We Answered:There are quite a few types of solar chargers around, it would depend on exactly what you are after and how much you are willing to spend. By far the best type of solar charger is the Solio hybrid range; these will charge mobile phones, cameras, ipods and a wide range of other things - you get adapters that plug into the charger for what you need. You can also charge the battery on these from a mains socket if you need too. I got mine here: http://www.solarpoweredchargers.com/Alte…Emma Said:Does anyone has...

    Cell Phone Solar Charger

    Terry Said:Looking for a solar powered charger for my droid incredible, any recommendations?We Answered:Here's one possibility, never tried it http://www.google.com/products/catalog?r… --- Kasey C, PC guru since Apple II days Enthusiasm wanes, but dullness lasts forever.Isaac Said:still searching for solar battery charger?We Answered:Yes. It is only required that you have a solar or wind unit with the proper output. Most smaller units have 12V output, and can be connected through the "mobile" connection where you would connect them in a vehicle. I think however that you will find the units are ridiculously expensive, unless you can build your own. ALSO, wind powr units are not...

    Cell Phone Solar Chargers

    Leonard Said:Where can i find an LG Pop (gd510) solar panel?We Answered:pop one off the calculator. or contact the nerd societyClifton Said:If you could.. How would you improve the cell phone??We Answered:I would make it as big as those WWII radios with the antenna and backpack.. Plenty of RF Power, plenty of battery life. I would eliminate text messaging, its a conspiracy by teenagers to conceal their conversations and it really makes them look stupid. Like they just dropped a zombie pill. I would make the buttons the size of finger tips.. I would eliminate the games and the ringtones....

    Cell Phone Solar

    Marion Said:How do you charge a cell phone on an EZ Crank Solar Flashlight Radio?We Answered:Yes, as long as you have the needed adapters for it, mine came with all the cables and adapters...

    Cheap Solar Cell

    Sonia Said:Does the amperage output of a solar cell change depending on how much light there is?We Answered:Put the amp meter in a parallel circuit and make sure the setting is correct. As the brightness increases the amperage out put should increase,once there is adequate light to turn on the cell the voltage should remain constant.Ramona Said:I'm making a solar LED light, can you tell me if this will work?We Answered:No, such a system cannot store enough power to light 10 LEDs for any length of time. The solar accent lights sold for dotting the garden do not collect...

    Cheap Solar Cells

    Rafael Said:Any suggestion of cheap and high gain solar cell in a electronic store? for my college project?We Answered:If your main goal is for it to be cheap, you will not be getting high efficiency cells. What you need to be doing in the planning stages of your project is figure out how much power you will need. Then, either the solar cell(s) must supply all of it, or you must charge a battery. Either powering your project, or charging your project's battery, will determine how many and what size solar cells or panels you need to buy....

    Cheap Solar Panel

    Jamie Said:i want to attach a solar panel to my bike and i was wondering how to?We Answered:You did not give enough information to us to be able to give you an answer. Is your bike some kind of electric bicycle. Do you want the solar panel to charge a battery that powers the electric bicycle? Another direction, Do you want the solar panel to charge the battery for a head light on a regular pedal bicycle? There are three places on a bicycle to mount a solar panel , Above either of the fenders, or on the handel bars, if it is not too big. Without...

    Cheap Solar Panels

    Agnes Said:Is it possible to transfer solar power that can heated surfaces?We Answered:There already is a type of solar panels that uses the sun to heat up metal surfaces. The thing is the heat cannot be converted directly to electricity. It can be used to convert water to steam that in turn will power up some turbines that will generate electricity. The thing with this method is that it has a very low efficiency (conversion rate). You need a lot (and i mean a lot) of panels to get a decent amount of electricity. The silica panels on the other hand...

    Cheap Solar Power

    Janet Said:Will the Dems' Solar and Wind Power Be Cheap --- About $0.08/kwh or what?We Answered:Its gonna be expensive as hell but their logic is that in the long run it will be cheaper. Like installation,maintenance and all that stuff. Not really easy overhauling the system.Edward Said:How high does a barrel of oil have to go before solar power is cheaper than using fossil fuels?We Answered:That's a basic premise of economics, to determine the break-even point. You need to compare the fixed cost of purchase and the variable costs of operation. Let's compare a 1000 watt gas powered generator and...

    Cheapest Solar Cell

    Katie Said:Would you buy a sollar cell for your house energy if it was cheaper than electricity?We Answered:100% I would. I have a friend who installs that and he is looking to start his own company doing that. I would jump all over it, but the costs are huge. I know that in 10 to 15 years it would pay itself off, but I dont have the cash plus, I am not sure if I will be in my house that long. The avg person use to move every 5 years. I know that has probably changed, but I think that...

    Cheapest Solar Cells

    Mario Said:Solar Cells for a house?We Answered:keep in mind that the cheap solar cells are 1/4 as efficient as the photocell type,...

    Cheapest Solar Panel

    Eduardo Said:I'm looking for a solar panel?We Answered:In a case like yours you could make your own but there are sites that sell them online small enough to charge a laptop. They are also designed with a shunt diode built in to prevent overcharging. Otherwise you would fry your laptop....

    Cheapest Solar Panels

    Amber Said:What is the CHEAPEST place where I can get Solar Panels from?We Answered:How to Make a Solar Power Generator for Less Than $300 Using parts easily available from your local stores, you can make a small solar power generator for $250 to $300. Great for power failures and life outside the power grid. Power your computer, modem, vcr, tv, cameras, lights, or DC appliances anywhere you go. Use in cabins, boats, tents, archaeological digs, or while travelling throughout the third world. Have one in the office store room in case of power failures in your highrise. I keep mine in...

    China Solar Cell

    Elaine Said:2 law of thermodynamics open/closed irrelevant to creation/evolution? ?We Answered:First, we must examine what is Thermodynamics. The following is an actual question given on a University of Washington chemistry mid-term. The answer by one student was so "profound" that the professor shared it with colleagues, via the Internet, which is, of course, why we now have the pleasure of enjoying it as well. Bonus Question: Is Hell exothermic (gives off heat) or endothermic (absorbs heat)? Most of the students wrote proofs of their beliefs using Boyle's Law, (gas cools off when it expands and heats up when it is compressed) or...

    Commercial Solar Cells

    Jose Said:A commercial solar cell puts out 3V and 0.1 A and measures 5 by 8 centimeters...?We Answered:Power / cell = 3V * .1A = .3W / cell 40W / (.3W / cell) = 133.3 cells, rounding up gives 134 cells. Most engineers would de-rate by 10% to give a margin of error. Doing so would give 133.3 * 1.10 = 146.6 or 147 cells...

    Commercial Solar Energy

    Ivan Said:What can you tell me about OTEC (Ocean Thermal Energy Conversion)?We Answered:You can get information on the following websites: www.nrel.gov/otec/ www.otec.de www.seasolarpower.com/otec.html www.otecohio.org www.otecusa.com seawifs.gsfc.nasa.gov/OCEAN_PLANET/HTM… ....Micheal Said:renewable energy commercials?We Answered:Try physics to show how stupid the corbin foot print.The CO2is all recycled so there is nothing lost....

    Commercial Solar Lighting

    Greg Said:Which science research topic? (10 pts)?We Answered:The factors affecting the rate at which a cricket chirps Jill Said:Is anybody else excited about the future?We Answered:I think its pretty cool to! As much as I want to, I want things worlds like the Jetsons and Star Wars to be real just cause its cool. Like flying cars, and planes that can do vertical take off. But looking at how far its progressed to get to the point we are now, its gonna take a lot more time for "future" things to become a reality. All those movies depicting...

    Commercial Solar Panel

    Barry Said:Photo voltaic electrician schools in CT?We Answered:Check this site out. It has all the info you'll need to make an informed decision. Good Luck http://www.electrician-electricalcontrac…...

    Commercial Solar Panels

    Jose Said:Since when did everything become not cost-effective?We Answered:Yes, and I knew it 8 years ago when I told people not to vote for Bush. But of course no one listened. What really makes me angry is they didn't just do it once but twice. When any one with their eyes open could see what was happening.Michael Said:Which form of energy is more likely to have an immediate impact?We Answered:Yes, we need to drill some of the billions of barrels of oil we're sitting on. Let's be clear on a couple things here: 1. It's the DEMOCRATS who have blocked drilling for...

    Commercial Solar Power

    Karen Said:Solution for electricity out in the middle of no where?We Answered:I think what you really want is a small generator, and propane for heat. The generator does not need to run 24/7. When you're not in the little cabin, turn it off. Just don't leave things that will spoil in the refrigerator. I'm a fan of solar, but this doesn't sound like the ideal application for it.Brittany Said:Future space propulsion and power.?We Answered:Conspicuous advances in technology have a way of arriving unexpectedly, frequently while the mainstream scientist community is still pronouncing them impossible.. At...

    Construction Of Solar Cell

    Leslie Said:Can anyone help me with some electronics?We Answered:Well, that could depend on exactly who is defining photodiode. From the reference, "in fact, a solar cell is just an array of large area photodiodes." Ask your critic exactly what they are quibbling about....

    Construction Of Solar Cells

    Mattie Said:How to profit on "Global Warming"?We Answered:100% Agree. The NWO is getting a little to excited these days. Instead of playing chess the NWO has switched to dominoes. Just take a look at Al Gore to see how to profit from Global Warming. ...

    Cost Of A Solar Cell

    Leon Said:anyone who is qiute advanced in physics or maths plz....?We Answered:No of solar cells produced = 33 * 1/8 = 4.125 watts = 0.004125 kw Hope this helps.Jackie Said:Understanding Physics? Could someone explain?We Answered:This is a units problem. As with any problem in physics, state what you know and what you need to know and look for formulas that relate them: (C means cost, P means power, T means time.) P = 0.2kW C = 10,000£ (use £ after the number like a unit) T = 200,000h cost of kWh: Remember that "of each" means divide ("of" on its own would mean multiply, as...

    Cost Of Solar Cell

    Willie Said:What is the payback time when (Physics question here)?We Answered:Contrary to your added remark, there is no single exactly correct answer, because the annual energy you get from a solar panel is subject to random variations in weather, panel aging, maintenance, etc. So one must start with assumptions and end up with estimates. Suppose a 1-kw solar panel costing £6400 generates 1/3*24*365 = 2920 kwh/yr (1/3 is optimistic; it's the average fraction of each day that rated power is generated.) This corresponds to a payback rate of 0.08*2920 = £233.6/yr. Payback time = 6400/233.6 = 27.4 yr (ignoring the lost interest...

    Cost Of Solar Cells

    Julio Said:questions bout solar cells?We Answered:My you have allot of questions, I will try to help 1. solar cells come in many different sizes large to small 6"X6" TO SMALLER THEN 1"X1" But each solar cell will put out the same volts .55 volts each no matter the size the thing that changes is the current that would be amps so if you have 36 solar cells lets say 2"x2" and one solar cell puts out .70 amps or 700ma then that will be the power of your solar panel then you solder each .55 volt sells together in series...

    Cost Of Solar Panels

    Jeff Said:How much would it cost to put up solar panels on a 36,000 sq.foot building?We Answered:Fill out this eval and they can tell you online: http://www.spheralsolar.com/freesolareva… No commitment nec... Also, you can put your address in here and it help you on where to put the system: http://roofray.com/Todd Said:Roughly, How much would it cost to set up solar panels to get 30 Amps of current?We Answered:Your house is not going to use 30A 24x7, so that number is not useful. Look at your electric bill and see how many kilowatt hours (kwh) you use on average. For example, in non-heating months,...

    Cost Of Solar Power

    Lorraine Said:How much money would it cost to put solar panels at my school versus the cost of wind power at my school?We Answered:YOu can't give a full answer ot the question without a whole lot more facts. The location of the building will tell you how effective solar panels will be. If it is in the far north, it will not be effective at all because for half the year, the sun is insufficient to power them. Wind power works only where there is consistent wind to run the turbines by turning the fans. Solar energy has become less expensive...

    Cost Solar Cell

    Mike Said:How much would the Solar Backpack cost?We Answered:I have a solar Panel from harbor freight that cost me 35 dollars. I keep it on my boat to keep the batts. up It's small enough to mount on a good sized back pack. Better yet, If you only need to recharge small battery's do like I do. Get a solar LED yard light and cary it with you just to charge battery's. pull them out at night and charge them during the day....

    Cost Solar Cells

    Kathleen Said:what is the prospect of solar cells becoming really succesful?We Answered:Pretty good. The real question is how long will it take for either to change. First off, the efficiency of solar cells has already grown by leaps and bounds, with the disadvantage being that the methods with the greatest efficiency are very expensive. There's a couple of ways to improve the efficiency, perhaps without the associated increase in cost. 1) Increase the spectrum of light that can be converted to electricity. Currently, solar cells only convert a very small range of light frequencies to electricity. You could theoretically...

    Crystalline Solar Cell

    Jeffery Said:Element Chemistry Help?We Answered:Element A - Silicon most common metalloid,http://en.wikipedia.org/wiki/Metalloid second most abudant element in earth's crust, http://en.wikipedia.org/wiki/Abundance_o… used in transistoras, solar cells, computer chips, crystalline structure like that of diamond Element B - Lead http://en.wikipedia.org/wiki/Lead ts great density makes it a suitable shield for X-rays, has been eliminated from paints and gasoline, used in car batteries, most metallic element of this group, and compounds are poisonous . Element C - Tin http://en.wikipedia.org/wiki/Tin used to coat steel (food) cans, and its Stannous fluoride was once used in toothpaste in the days when toothpaste tubes were made out of Tin foil...

    Crystalline Solar Cells

    Andy Said:how many solar cells would i need to charge a 12V battery?We Answered:Typical solar panels for 12V systems have up to over 21V open circuit voltage, so you would need 39 such solar cells. Of course you need to connect those cells in series, so that the voltage of each cell would be added. In such a case the amperage will still be 100 mA, but your power would be 39x0,06W = 2,34 W. This would be enough to power two 12V computer fans, but not much more. Even the radio might need more power... To increase the power and amperage,...

    Different Types Of Solar Panels

    Lori Said:Can Solar panels be damaged by radiation and solar wind etc? (Mainly radiation)?We Answered:That depends upon if you mean in outer space or here on earth. Because on Earth we have a magnetic shield that deflects all of that radiation and solar wind. but in outer space, certainlyIrma Said:Nuclear reactors vs. Solar panels?We Answered:1: You should research nuclear reactors and their emissions. Mostly it's waste heat, and if they use a water-based cooling reactor, there can be significant emissions of water vapor. Some might consider the spent fuel an emission too. Waste nuclear material disposal...

    Diy Solar Panel

    Tara Said:What is the most efficient way to produce 10kw of electricity per month?We Answered:I am a strong advocate of using materials at hand to create what is needed. You can convert any internal combustion engine for use as a steam engine.1 A parabolic dish (2) can be used to boil water and drive the engine.3 One or multiple alternators can be used to provide electricity and some used batteries may have some life as stationary batteries. Even though such a system may not be as "efficient" as the most efficient system (parabolic dish/stirling engine3) using...

    Diy Solar Panels

    Perry Said:DIY solar cell wiring in series/parallel?We Answered:The strings should be of equal length before connecting in parallel. so you have only one choice, since 46 divides into 23 and 2, you can use two strings of 23 each or 23 strings of 2 each. 23 cells is 12 volts. Other connections will waste power. Look at it like connecting batteries in parallel. If you do use series/parallel strings, it's best to use diodes in series with each string. That wastes a bit of power but allows the array to operate if part of it is in the shade. You could...

    Diy Solar Power

    Paula Said:Please can anyone answer my GCSE DT questionnaire?We Answered:1) What Gender are you? • Male 2) What age range are you in? • Less than and including 19 years 3) What type of shop do you buy lamps in? • Supermarkets 4) In what price range would you buy a lamp? • £0 - £9 5) What genre of lamp do you prefer? • Modern 6) What gender do you think a lamp should be aimed at? • Both 7) What materials would you prefer a modern lamp to be made out of? • Plastic 8) What type of lamp do you use most? • Spot light/desk lamp 9) In what size range would you...

    Do It Yourself Solar Panels

    Judith Said:Kilowatt/Hour question?We Answered:I tried to reconcile your numbers. If you generate 380 watts = .38 kilowatts, and that is good for only 3.3 hours/day, then you get what you wrote: 1.256 kilowatt-hour (NOT kilowatt/hr) which I'm assuming is the power generated on an average day. You can treat dimensions just the way you do any other algebraic expression, so 1.256 kwh/day * 365 days/yr * .1048 dollars/kwh = dollars/yr Note that kwh in numerator & denominator cancel each other out. Similarly with days. So you are left with dollars per year -- just what you wanted.John Said:Has anyone had...

    Do It Yourself Solar Power

    Carlos Said:Where can I find a seminar in New Jersey on Solar power?We Answered:This is nice cheap introductory tour of solar: http://www.distance-education.org/Course… Then you should get in touch with a solar supplier, who can make you a kit with instructions: http://spheralsolar.com/ You should have a master electrician help you, but if you are handy you can do it.Salvador Said:Do it yourself Solar powered transportation?We Answered:The one EV car I currently have (have 2 vehicles that run on hydrogen also) I converted from a vw bug and is free to charge. As I live completely off the grid all my electricity comes from solar panels...

    Domestic Solar Power

    Victoria Said:Is this another reason why we should drill for more domestic oil?We Answered:America is in Deep Water and sinking fast. We need to drill to become a self-sufficient country.Floyd Said:Help me revise my paper please?We Answered:I've got a few suggestions - you could try just one, or all of them. 1. Read each paragraph slowly and use a coloured pen or highlighter to pick out important points or words. If you don't know what some of the words mean - look them up in a dictionary. 2. Give each paragraph a heading that describes what it is about - it's...

    Dye Sensitized Solar Cell

    Joanne Said:Marijua... Vote yes or Vote no?We Answered:I vote NO!! If Marijuana was legalized, then it wouldn't be long before someone would want Heroin legalized, then another drug, etc. Our world is in an awful shape right now, so we sure don't need more dope heads running around. ***************************Naomi Said:HELP....please!!!!!!?We Answered:According to this, iodine acts as a reducing agent to regenerate/recycle the active agent of the solar cell.Tanya Said:Marijua... Vote yes or Vote no?We Answered:no ban it alllDanny Said:Marijua... Vote yes or Vote no?We Answered:No, you can't legalize a substance because you need tax revenue no matter how beneficial...

    Dye Sensitized Solar Cells

    Daniel Said:Dye-sensitized solar cell?We Answered:Google is your friend http://solarcellsinfo.com/dyecell/ http://search.yahoo.com/search?fr=mcafee…Sergio Said:i am research scholar working on dye sensitized solar cell,so how can i join industry can any body help me?We Answered:As a researcher, you are doubtless familiar with the peer-reviewed journals that publish work in your area. Have you authored or co-authored any papers of your own? Have you attended academic and industry conferences and made every effort to take advantage of networking opportunities? Are their recent graduates from your school that are presently employed in industry? You may be less familiar with commercial aspects. I'd suggest doing a thorough search of patents...

    Dye Solar Cell

    Diane Said:What choice of dye will generate the most voltage in a solar cell?We Answered:You need a dye that absorbs above the bandgap of TiO2. See this picture: http://www.elp.uji.es/juan_home/images/s… here is a good reference http://biblion.epfl.ch/EPFL/theses/2003/…Gilbert Said:How much power can you get from a 1m2 dye type of solar cell?We Answered:It all depends on how much solar energy it absorbs...

    Dye Solar Cells

    Herman Said:I want some information about making a dye solar cell experiencely?We Answered:The following guide has 3 set of plans.. one is for advanced level and it may solve your question as it talk about that way you are making your solar cells http://www.agua-luna.com/solar_panels.ht…Scott Said:Where can I buy dye synthesized solar cells?We Answered:http://www.solideas.com/solrcell/cellkit.htmlDawn Said:does anyone know anything about flexible dye sensitized solar cells which are completely made of polymers?We Answered:really beneficial but expensiveBeatrice Said:Does anyone know how to extract dyes from fruits to create solar cells ?We Answered:There are organic based solar cells...perhaps this may help: http://en.wikipedia.org/wiki/Dye-sensiti…Vanessa Said:can anyone give me info...

    Efficiency Of A Solar Cell

    Karen Said:A solar cell generates a potential difference?We Answered:Here's one way to set it up. Assume the cell has a constant voltage supply of V in it, with a resistor in series of R. This R represents the internal resistance. If you sketch out the first situation, you'll see that the current through the 500 ohm resistor, by Ohm's law, is 0.0941/500 . This is the same current as V/(R+500), so V/(R+500) = 0.0941/500 or V = (0.0941/500)(R+500) You can derive a similar equation for the 1000-ohm resistor, and since in both cases, V is supposed to be the same, you can set the...

    Efficiency Of Solar Cell

    Chester Said:Why does the efficiency of a solar cell increase with light intensity?We Answered:solar cell efficiency should not depend on light intensity unless there is change in recombination kinetics. generally with the intensities available the efficiency should remain constant....

    Efficiency Of Solar Cells

    Danielle Said:what is the efficiency of the best solar cells today? Also, is biodiesel feasible considering limited land ?We Answered:I have installed my own solar system and am in the process of starting a solar company. I have included links to all the companies mentioned below. The very first link is to the Energy Blog's Solar PV section. There are dozens of articles about companies that have plans to make or are making solar PV products. The field is very fast growing and there must be well over 100 companies making solar PV products. The highest efficiency solar cells currently available...

    Efficiency Solar Cell

    Cecil Said:How can I make cheap solar cell from cheap materials with high efficiency and gain.pls help me?We Answered:Visit the URL in my sources to see how to build your own solar panels from existing materials.Claude Said:A silicon solar cell array, with a collection efficiency of 13%, is required to produce 1.5 kW of power to run?We Answered:Power out = Insolation * area * efficiency Fill in the blanks, and solve for the area....

    Efficiency Solar Cells

    Barry Said:what is the sunlight-to-electrical conversion efficiency of the solar cell?We Answered:Depending on the type of solar panel, they are anywhere from 8% - 22% efficient. CIGS have low efficiency, but can be flexible for multiple applications. Mono and poly crystalline can be in the mid teens and generally the most affordable, and some hybrid solar panels are up in the low 20's, but you pay a premium for them.Anthony Said:How long until Solar cells can achieve 80% efficiency?We Answered:Conventional silicon cells have a theoretical limit at about 30%, depending on who you talk to. Exotic, multilayer...

    Efficient Solar Cells

    Tom Said:how efficient are semiconductor-based solar cells compared to photosynthesis?We Answered:Most plants are only about 0.1-2% efficient. Sugar cane is around 7% efficient. Most modern photovoltaic cells are anywhere between 8 - 24% efficient, although there are cells in development that concentrate the light to acheive efficiency around 40%. I think it's rather clear who the winner is. To be fair though photovoltaic cells aren't dependant on biological components that can be easily denatured by excess heat.Allison Said:Which is more efficient, hydrogen or solar cells?We Answered:At thi time, I would have to say solar cells.Floyd Said:How...

    Electric Energy Solar

    Roberto Said:Does anyone know if it is possible to power an electric fireplace & blower with only solar energy?We Answered:Yes, it is possible even if it has heating elements. It sounds as if the Electric Fireplace has an electric heating element and a blower fan. The higher the kilowatt rating of the connected load; the higher the cost to purchase and install a solar system to supply it. A 50 watt system with Photo Voltaic module, batteries, controller, and invertor costs about $700. A 600 watt system with Photo Voltaic module, batteries, controller, and invertor costs about $8,000. Here is a good site...

    Electric Solar Cells

    Elsie Said:Hydrogen and solar cells?We Answered:Each solar cell is different. The older solar cells were only 5-10% eff, but they are able to work at lower levels of light. The newer cells have achieved as high as 30% eff. The size of the solar array and its orientation to the sun will determin how much power can be created. The average US home can be self suffiecient with a solar array on its roof. My house is 1600 sq ft and I use about 1.5 Mw per month. If the initial cost was less, I could put an array on...

    Electric Solar Panels

    Jeremy Said:Do you think it would be a good idea if electric cars were equipped with solar panels?We Answered:Good thought could stay charged a lot longer that way ?Wallace Said:Will solar panels, a wind mill and a backup battery bank provide enough power to run a 100hp electric motor?We Answered:this is a very large installation! 100 HP is 75 kW, not counting for losses, which will get you to about 100kW. You need to decide how long you will run the motor on batteries on days with no sun or wind. Every 8 hours without sun or wind multiplies the number...

    Electrical Solar Panel

    Salvador Said:How much is a solar panel?We Answered:You don't have to go the whole hog in one go, I did my holiday place using just two panels to top up leisure batteries worked a dream for two years no flats no need for mains either....

    Electrical Solar Panels

    Tim Said:H2 as an Alternative Fuel Source using Solar Panels?We Answered:Currently solar panels are rated at about 15 percent efficiency. That means that about 85 percent of the solar energy that is falling on it, is wasted. Electrolysis is also about 67 percent efficient. So the TOTAL amount of solar energy you would have "converted" into hydrogen is 67 percent of 15 percent. Using my calculator that comes out to: about 10 percent total efficiency. About 90 percent of your solar energy gets wasted in the process. A better alternative to solar panels would be solar powered sterling generators. Sterling engines...

    Electricity Solar Energy

    Katrina Said:How can i produce electricity using solar and wind energy?We Answered:There are many ways. If you live in Alaska forget about solar. In my opinion the link below is about the only real viable option....

    Electricity Solar Panel

    Diane Said:How much electricity does the average 1 meter square solar panel produce?We Answered:120 - 150 watts per square meter would be a good estimate, under the best sun conditions. That means it won't produce that power all the time the sun is shining on it, but only when the sun is more or less directly overhead, and when the air temperature is not too high. How much energy you get out of the panel in a day depends on the location, and season, of course.Naomi Said:how do you build a solar Panel to generate electricity?We Answered:Hey Done it, the...

    Electricity Solar Panels

    Tamara Said:could trees be genetically engineered to produce electricity like solar panels?We Answered:Everything is made of the same stuff, what people call energy. Everything living uses electricity, in some way or another. Every moving things produces electricity, in some level. Everything which has any mass has electro-magnetics. The main problem is tapping into this electricity. Most people only a short while ago believed that trees were only good for burning and producing food, in terms of energy. Now they say they are good for producing raw sugar (Fruit: fructose) and cellulose which can be...

    Energy Power Solar

    Lucy Said:i have questions about the energy, SOLAR POWER?We Answered:Solar cells consist of two semiconductors stuck together. Silicon has 4 outer electrons so forms 4 bonds. If you put a tiny bit of something with 3 outer electrons in one block of Si, then that will be missing a bond. If you put a tiny bit of something with 5 outer electrons in another block of Si then that will form 4 bonds and it turns out the thermal energy at room temperature is enough to 'exite' the spare electron into the conduction band so it can move around. You bring the two...

    Energy Solar Panels

    Roy Said:How much energy do Solar Panels Produce?We Answered:it depends on how it is builtyou can charge a battery or help run a business.go to http://www.blueviewsolar.com and answer all questions about solar and wind power.thanks...

    Film Solar Cell

    Allen Said:What kind of adhesive is on car tint film?We Answered:look up differences in tapes. hot melt vs acrylic and PE vs PP...

    Film Solar Cells

    Clyde Said:Solar Cells?We Answered:You should be able to mail order from Jameco Electronics. I have included a link to their flexible solar cells. Prices are in US dollars....

    First Solar Cell

    Jacob Said:how do i make a thermoelectric generator?We Answered:The only method I know with which you can make electricity out of heat (directly, not via a turbine like power stations do) is an electronic component called a thermocouple. Because one thermocouple gives off too tittle energy to do anything useful with it, you will require an array of several. Such array exists on the market, see http://www.hi-z.com/websit03.htm And because there are not many practical applications where you can use a small amount of electricity near a heat source, the only "home-use" of this technology I have seen is a fan...

    First Solar Panel

    Sergio Said:Buying inverter for a solar panel?We Answered:I'm guessing that each of those solar cells is just 0.5 volt at max power, so if you make a 12-inch square panel, you will get 2 volts - not enough for the inverter. A car inverter is notoriously inefficient, but it would work if you connect it to a 12-volt battery. You cannot generally connect such an inverter to solar panels alone. The battery supplies the peak current that the inverter needs, and the panel charges the battery. To charge a 12-volt battery, you will want 36 cells, generally, which give you...

    First Solar Panels

    Alma Said:Reagan's first act as President was to tear down the solar panels on the roof of the White House, how muchWe Answered:That had to be the dumbest decision made by that moron in the 8 years of office. Above and beyond trading missiles to our enemies, for hostages. We would be much better off at this point, if people had spent 5 seconds listening to Carter talk about alternative energy sources, rather than spending 30 minutes badmouthing him. History will show that Carter was right and the Berlin wall was going to fall anyway, regardless of Reagan....

    Flexible Solar Cells

    Lois Said:this new kind of cell phone?We Answered:nokia aeonStacy Said:Where to install solar cells?We Answered:You'll need to use solar cells made from a thin film technology, which are usually flexible. Traditional solar cells (monocrystalline and polycrystalline) are very fragile and break very easily. The companies that make flexible rollable or foldable solar panels often use a stainless steel sheet behind the actual solar cell. Some just use a plastic cloth backing with a polymer coating on the top....

    Free Solar Cells

    Dwight Said:You know how solar cells are only effective during the day? Guess what?We Answered:Well I have no trouble using my solar cell calculator at night because my lights adequately power it, but I see your point in desiring free energy sources. Perhaps you should consider taking a deeper interest into the physics of such a feat. Maybe you can find an actual means. Kyle Said:I need free solar cells,will someone give them to me??!???We Answered:nothing is free, nothing!!Paul Said:Hi.. Can One help me to Find out a book Physics of solar cells by Author Jenny Nelson PFD for free?We...

    Free Solar Panel

    Ruth Said:What to do with a solar panel?We Answered:Hey AJ, Tom is quite right, a panel that size is a great trickle charger at 1.2 amps. If you have a good sized 12 volt battery, like from a truck, or for a boat trolling motor (it should be at least 60 amp hours) you can hook it to the battery and it will charge it slowly anytime the sun shines. Don't worry about the voltage, most 12 volt nominal volt panels are wired for 18 - 19 volts, and if you hook them to a battery, the panel...

    Free Solar Panels

    Neil Said:Does anyone have the book SUNSHINE TO DOLLARS?We Answered:http://search.yahoo.com/search?fr=slv2-f… easy as pie....

    Fuel Cell Solar

    Duane Said:What about alternative fuel motorcycles?We Answered:I'll ride the one with 192 horsepower at the crank thank you.Raymond Said:is largest part of solar radiation is UV RAYS?, is source of biomass is sun?,is fuel cell stores the energy ?We Answered:No, UV radiation is not the largest part of solar radiation. Not exactly, the sun is not the source of biomass. Solar radiation is the source of energy that is stored in chemical bonds that are released when biomass is burned. Biomass is an organic composition made on Earth. No, A fuel cell stores no energy. ...

    High Efficiency Solar Cell

    Tara Said:problems with these two math word problems?We Answered:A polished Joule. 1Watt = 1 Joule/sec. The panel produces for 6 x 3600 = 21600 sec. At 60% efficiency the out put is 600W, so the total Joules produced is 21300 x 600 = 12,960,000 Watt's up? One m² produces 1000 W @ 100% efficiency in full sunlight. At 60% efficiency it's 0.6 of that. Since it's only producing for 6 hours out of 24, it's AVERAGE wattage is 1/4 of the sunlight rate. (1000 x 0.6)/4 = 150 Column Inches You might be tempted to think "well, one wrap is 2 feet,...

    High Efficiency Solar Cells

    Cynthia Said:What are your predictions for commercial solar cell effiencies in the 2015-2020 time frame?We Answered:For labs, 50%. For commercial purposes, 30%.Paula Said:math problem dealing with the solar system help!?We Answered:Um... Ah... Ok... Um, Can I pass...Johnny Said:Math problem dealing with the solar system help!?We Answered:Her do u have Professor McKeegan if so do u know where to find the answer for #1 sorry cant help u on #2 which is why im going to office hours...

    High Efficiency Solar Panels

    Gwendolyn Said:Will this solar USB charger charge my iPod Touch 2nd gen?We Answered:Sorry, no. An iPod Touch needs 500 mA of charging current, even a 300 mA charger won't work (I tried it myself, it doesn't). Assuming you could actually get 0.4 W out of that panel at 5 volts, that's only 80 mA of current. But small panels tend to have optimistic specifications, so the actual current you get could be just 20 mA. You would look for a panel that says 5 volt output, 500 mA or more. Such a panel would likely be 1 foot square, or 1...

    High Power Solar Cells

    Armando Said:solar power plant, is it possible?We Answered:It is because, as of now, the cost of a reliable (i.e. available year round, 24/7) kilowatt-hour is more expensive coming from solar powerplant than from thermal or hydro power. If you need power during night, during winter (when the sun is low, thus giving less energy, and often hidden by clouds) you need humongous banks of batteries that were recharged during summer months if you only rely on solar. That is costly. Very costly....

    History Of Solar Cell

    Katherine Said:Spirituality, Religion, Science, Pantheism, The Universe, The Mind of God. Can you comprehend?We Answered:The issue most people have with pantheists (everything is god) is that they think they are making relevant commentary toward pan-en-theism (god is in everything). The issue with the universe being "god" is that it is a non static being. It is big but changing and in being so, it can have no will or destination beyond whatever happens to... happen. I agree with a lot of what you are saying, but only because you are saying so little. The "god" part requires time and intent...

    History Of Solar Cells

    Wanda Said:Science Help. Can someone answer and explain these for me? I'm having trouble in this part of science class.?We Answered:1.solar cells 2.solar stills 3.solar flares 4.corona 5galaxy 6fusion 7nuclearreaction 8 silicon 9 photosynthesis 10 inverse square 11 distillation 12 sun spots 13 chromosphere 14 magnetosphere 15 spectroscopeRick Said:Could there be infinite universes?We Answered:Although there is nothing to indicate that universes form the kind of cyclic patterns you're describing, or that they are their own life forms, it is nevertheless entirely possible that there exist infinitely many of them. If so, it is probable that many of them are very different from our own; some of them may have different laws of physics, and...

    Hit Solar Cell

    Linda Said:Do solar cells "run out" of electrons?We Answered:No they don't. A solar cell plus a consumer load (for example a lamp), connected through a cable, (if consumer or cable is missing no electricity will flow) is an electric circle and NO electric circle EVER runs out of electrons. And remember there has to be an electric circle or there would be no flow of electrons, thus no electric energy (which is nothing else than moving charge, in form of elections!)....

    Hit Solar Cells

    Fred Said:Could there be a laser relay from the orbit of Mercury to then mathematically send Sun energy directly to Mars?We Answered:Laser beams spread. They have a small angle, but they aren't perfect columns....

    Home Made Solar Cells

    Don Said:Science Help. Can someone answer and explain these for me?We Answered:1. solar to electric energy 2.space vehicles 3.solar to electric to battery 4.lack of concentrated solar 5.long nights 6.both 1 and 2 7.cooler 8.both 1 and 2 9.storms 10.allDeborah Said:Electricity Question?We Answered:I wouldn't bother with the solar cells. You can charge a battery that can run an LED or two with them, but that's about it. Houses have refrigerators, furnaces, fans, garbage disposals, and computers, all of which take vastly more power than your solar cells. The AC converter wouldn't do you any good, either: AC or DC, your source of energy is simply too...

    Home Solar Cells

    Micheal Said:Are there any good active solar websites and if so where are they?We Answered:You need to size your wiring according to the Universal electrical code. They recently adopted low voltage home energy systems into the code for a more standardized means of inspections for safety considerations. What that means for wire sizing is the amount of current allowed for each wire gauge should be considered when determining the connection between the solar array and the batteries. The current rating for a wire gauge is based on thermal rise of the wire. The current rating is...

    Home Solar Energy

    Lena Said:solar energy installing in a home?We Answered:There are kits/guides that contain the complete solar power system/solar panels setup plans necessary for you to build a solar panel. These guides also show you how to assemble your own wind turbine. And the set up is simple enough for anyone to comprehend....

    Home Solar Panel

    Louis Said:Any home owners experienced with going solar?We Answered:Advances in Solar Power are happening all the time. There's many different techniques that are being tried now. As for the cost of the new panels I don't really know. There's a company that rents solar panels for a flat monthly rental rate thats equal to what your paying now and in most cases less and this rate would be locked in for up to 25 yrs. There's no system to purchase, no maintenance fees, no permit issues and no installation cost. By renting them you also save yourself from buying now...

    Home Solar Panels

    Dean Said:About how many people in the US have solar panels on their home? Really need the answer. Thanks?We Answered:Not me. I heard about them at school when we learned about space travel.Janet Said:how would $10,000 worth of solar panels on every home in the US effect American energy dependence?We Answered:Let's be careful with these numbers, because much of the initial cost does not go into the solar panel alone, but in all the control and storage electronics that is also necessary to make it work. If you know the total US energy consumption (and most is in industry and...

    Home Solar Power

    Glenda Said:How much solar power does it take to run an average home?We Answered:My energy consumption on electricity is 5 units per day or 5 KW per day . A month would be 150 KW .To get a figure for the average home : Multiply it by 2-3 would be 300-450 KW for the average home....

    Homemade Solar Cells

    Bill Said:homemade solar cell using copper plate, salt, and etc anyone?We Answered:There is a diagram on the first source at the bottom. The top side of the cell has two more electrons than the bottom. When the sun light hits the top of the cell the energy is enough to knock an electron loose and move it to the bottom because of the polarity. The bottom will move it out to the power lines. If it was made of a conductor then the electrons would equalize immediately. It would reach an equilibrium and not conduct electricity before any energy could be...

    House Solar Panel

    Katie Said:How would you calculate the solar panel requirement for a 1500 sq.ft. house?We Answered:You so silly, how much does a red car cost ? Some houses need 1Kw, some need 40 Kw. Here is a link to the pro's that can answer your questions. With all the right stuff in your home a $10K system will work. Remember one can't take a boat to an airplane race and expect to win. Here is a link to a home made windmill, thats right 3 systems to power your home, solar, wind, back-up generator....

    House Solar Panels

    Frank Said:Do Liberals think solar panels on ones house will run an air conditioner on a hot summer day?We Answered:"Will run?" The technology improves continually. Not only can solar power currently reduce our reliance on fossil fuels but with improving technology the practical possibility for the exact situation you describe for homeowners is not far off. The problem with cons is that they can't think beyond their noses and they have no vision for the future. We can't let that kind of retrograde thinking determine how we approach our current and future energy needs.Wanda Said:Has anyone...

    Household Solar Panels

    Violet Said:Chem question regarding using solar panels ....?We Answered:It is not that simple. There are 3 main types of solar cells. Monocrystalline silicon is the most efficient and produces the smallest solar cells, and therefore the smallest panels. Poly-crystalline (or multi-crystalline) silicon produces the next most efficient type of cells and are a popular choice. Amorphous (or thin-film) silicon uses the least amount of silicon and also produces the least efficient solar cells. This means thin film system take up more area than the other two; an important factor to consider in relation to possible future upgrades; i.e. if you'll have...

    How A Solar Cell Works

    Bernard Said:how long would a solar cell have to work to re-coup the energy used to make it?We Answered:I'm taking a class at UCLA about climate change and we had a speaker that made and installed solar cells. He said there were different types, some more efficient, but some more appropriate and style friendly. He said that they last on average about 30-40 years. As you know their manufacture is extremely energy intensive, and he said that they took about 4-7 years (depending on model) to save the energy that were used to make them. In...

    How Do Solar Cells Work

    Peter Said:how does a solar cell work?and can it be made with samll investment?We Answered:A solar cell works on Einsteins photoelectric effect. Through this effect, Einstein determined that light has momentum and this momentum can be used to "expel" an electron from its nucleus. This free electron can thus be carried via a wire and produce a net current. The way that they are made is through thin film deposition. Might be a little hard to make that in your basement.Leonard Said:i've got a problem with my science project regarding solar cells and a dc motor.10 pts for best answer.?We Answered:Solar...

    How Do Solar Panels Work

    Roberta Said:How does the solar enegy panel work?We Answered:Photovoltaic (PV) cells convert light energy into electrical energy, as French physicist Edmond Becquerel discovered as early as 1839. Most commercial PV cells are made of silicon which is a semiconductor. Semiconductors are able to absorb some of the light that hits that material and do something useful with it. With pure silicon all the electrons (negatively charged particles) in the material are locked in the crystalline structure and cannot move. The silicon in a solar cell is changed slightly so that it will work as a solar cell by the deliberate...

    How Do You Make A Solar Cell

    Rhonda Said:how do you make a solar cell from everyday items?We Answered:You can't. All known ways to make solar cells require ultra pure materials and expensive high tech equipment. Basically it is the same process as making a computer chip. Now if you only want to make a device to capture the Sun's heat for something like a solar hot water heater, that is pretty easy.Vickie Said:how do you hook a solar cell to a plug in electronic?We Answered:I don't know how big this oven is, but most ovens take a huge amount of power, big enough that you would need...

    How Does A Solar Cell Work

    Carlos Said:How to find published work from the scientists themselves?We Answered:Hi Tyler, The biggest resource you'll find online is: www.arxiv.org That should be ALL you need! (Here's the search URL for solar cells: http://arxiv.org/find/all/1/all:+AND+sol… aNAGAh.Shawn Said:solar energy equation?We Answered:See the reference, but remember Einstein's advice to make your theory as simple as possible, but no simpler....

    How Does Solar Cell Work

    Tyrone Said:solar enegry?We Answered:Solar power is the technology of obtaining usable energy from the light of the Sun. Solar energy has been used in many traditional technologies for centuries, and has come into widespread use where other power supplies are absent, such as in remote locations and in space. Solar cars achieve their performance by extreme lightness of weight, and very efficient aerodynamics that force compromises that would not be acceptable in a day-to-day transportation device. Any vehicle built for passenger comfort and meeting contemporary safety standards would be much less aerodynamic and much heavier, thus requiring much more power to...

    How Does Solar Power Work

    Tammy Said:How does Solar cooker work by the power of sun ?We Answered:the sunlight is reflected by the mirror fitted in the lid of the solar cooker. there is a particular set of rays in the sunlight called infrared rays which provide heat to the object they finally fall upon(visible light also converts to heat but containing comparitively less energy). this energy falling on food converts to heat and cooks the food. temp. can reach quite hish(150-180celcius with plane mirror and 200-250 with concave mirror) hope i was of help!!Juanita Said:How does a solar powered camera work at night and/or...

    How Make Solar Cells

    Stephen Said:how do they make solar cells from silicon?We Answered:The same way they make integrated circuits - http://www.madehow.com/Volume-1/Solar-Ce… http://en.wikipedia.org/wiki/Solar_cell http://www.electroiq.com/index/display/p…Melissa Said:How do you make solar cells?We Answered:Do you want to build a radio shack type project that you can use at your home? Or do you want to know how the commercial ones are built?...

    How Much Do Solar Cells Cost

    Dan Said:How much less pollution does solar power produce?We Answered:the production of electricity from solar is almost zero. The production of the solar equipment is high, and the solar farm requires a very large area. Add that the solar panels need to be cooled with fresh water, so the water needs to be cleaned and circulated....

    How Solar Cell Work

    Leo Said:Would my solar cell setup work?We Answered:1) 8 Amp-hr battery holds 8 amps for 1 hour or 1 amp for 8 hours worth of charge. That means 0.125 amp will charge it in 64 hours. But in reality it will be over 100 hours due to losses. That's 65-100 hours of bright sunlight with the sun directly perpendicular to the solar cell. Batteries have leakage current. If that is, for example, 10mA, that subtracts from the charging current and adds to the charge time. 2) 8 amp hr battery x 12 v = 96 watt-hrs. that means a 65 watt load...

    How Solar Cell Works

    Emily Said:Who watched the last prison break episode?We Answered:I have no idea where they are going with it, they do seem to be running out of ideas now. I couldn't make sense of that whole Bargain thing either, I don't think they understand it themselves. It does make me laugh now but I am still obsessed and will watch it till the very end. Next week is the season finale....

    How Solar Cells Are Made

    Lonnie Said:how solar cell are made and connected to penal?We Answered:The cells are connected together to make a panel. Depending what the cells outputs are, and what voltage you need for an output, you wire them as you would battereis, so most likely you would have a combination of serially wired cells wired in parallel to compose your full panel. Wired in series increases voltage, current is limited to the smallst cell's output. Wired in parallel, you get the same voltage as a single cell, but current adds up. Each company handles the combinations differently, and the...

    How Solar Cells Work

    Alfredo Said:How do Solar cells work?We Answered:you need to knowledge of photoelectric effect to understand this question. First of all, in photoelectric effect, light are consider as particle. It is the photons. photon is a package of light carrying energy. the energy is given by the formula, E = hf E is energy, h is plank constant, f is frequency of the light when the photon incident on the surface of a conductor, it will transfer its energy under a few condition, 1. the frequency of the light must be higher than the threshold frequency of the surface for electrons to be...

    How Solar Energy Works

    Mitchell Said:devices that work on solar enrgy?We Answered:The calculator is the most useful....

    How Solar Energy

    Misty Said:What are the democratic and republican views on solar energy?We Answered:In reality - Solar Farms are not practical or cost effective - YET! They need to be subsidized by government. Solar panels only have a 10-20 year life. When solar panels go below the 8 cent per watt cost - then they will be more cost effective. Some Democrats don't want their development or wind Farms. http://www.nytimes.com/2009/12/22/busine… "AMBOY, Calif. — Senator Dianne Feinstein introduced legislation in Congress on Monday to protect a million acres of the Mojave Desert in California by scuttling some 13 big solar plants and wind farms planned for the...

    How Solar Panel Work

    Amanda Said:How do solar panels work?We Answered:sunlight energy knock down one of the electrons creating enery but they are not reliable and they only use 20% of the sun to make electricity...

    How Solar Panel Works

    Alberto Said:how do solar panel works on our daily lifestyle if used?We Answered:There are two basic types. One is the photo-electric ones that can be used to charge batteries and then converted into power for your home. Thus saving on your electric bill. The other is water type and they can be used to heat a larger tank of water to heat your hot water supply for showers and things as well as heat your home. Again saving on your light bill. Happy Holidays...

    How Solar Panel

    Gordon Said:does it make any sense to have a solar panel and a contender boiler?We Answered:You will probably find that the solar panel only heats the water, you need quite a big solar panel set to work the electricity, a condensing boiler means the boiler is 'a' rated for efficiency because of the way it uses fuel, but combination, regular or system boilers are all different, but all condense, you are confusing condensing boiler with combination boiler. The solar panel heats the water, the boiler backs it up if the water is not hot enough, it is a good, efficient...

    How Solar Panels Work

    Maurice Said:how does the solar panels work?We Answered:Solar panels collect solar radiation from the sun and actively convert that energy to electricity. Solar panels are comprised of several individual solar cells. These solar cells function similarly to large semiconductors and utilize a large-area p-n junction diode. When the solar cells are exposed to sunlight, the p-n junction diodes convert the energy from sunlight into usable electrical energy. The energy generated from photons striking the surface of the solar panel allows electrons to be knocked out of their orbits and released, and electric fields in the solar cells pull these free...

    How Solar Panels Works

    Ivan Said:how does solar panels give power to the batteries?We Answered:solar panels work in an interesting way. light is absorbed by each solar cell, and light 'photons' bump into electrons to produce 'voltage'/power. the process is naturally called the 'photo-voltaic effect'. the loose electrons are captured by an electrical conductor in the solar cell (usually made of silicon) and a circuit is completed ... solar panels may generate more power than is actually needed. this extra power is simply stored in lead-acid batteries (they store upto 1000 watts). read more about it here......

    How Solar Panels

    Brett Said:how many windmills/solar panels would be required to replace fossil fuel generators in the US?We Answered:There is no alternative energy that will even come close to replacing fossil fuels. You can add up all the solar, wind geo-thermal, ocean wave and any other alternative energy source you can think of and it would not equal 1% of what fossil fuels do. The only real answer is to increase oil production in the USA right now and work on developing a new energy source for the future, because it could talke 20 years to come up with something.Francis Said:How to charge...

    How To Build A Solar Cell

    Dwight Said:Using iPod with solar energy?We Answered:It is already done. Solar backpacks, solar messanger bags, solar trunk bags for bikes and solar camera bags. Then there are thin film solar panels that ether fold or roll up. All you have to do is just wear a backpack and plug your cell or IPod into it. Or if you are riding just plug into your trunk bag. http://store.oynot.com/posopr.htmlLeo Said:How many amps is required to charge a laptop battery with solar power?We Answered:You will need a higher voltage than the battery to recharge it. As the applied voltage increases current will begine to flow...

    How To Build Solar Cell

    Chris Said:how to build a circuit for solar lamp?We Answered:Below is a link show a simple diagram. You need to modify your circuit for the proper voltage and the Load Device you see will be your light bulb. Good luck!...

    How To Build Solar Cells

    Lynn Said:How many Solar cells are required?We Answered:About 450 watt-hours - that sounds like an electric bike battery. Is it 36 volts? What you need is to find a 200-watt panel with a max power voltage of 42 volts or more, or two, 100-watt panels in series. 100-watt panels are not the mainstream, anymore, so you may have to go with 165-watt. You would also need a charge controller for the battery pack. I've seen some electric bikes here with a switching power supply for their charger. For those, I believe you could wire the charger directly to...

    How To Build Solar Panels

    Shawn Said:easy directions on how to build a solar panel without ordering online?We Answered:http://www.howstuffworks.com They may have a link. They did for building a wind powered generator.Janice Said:I'm a building contractor wanting to build and install solar panels, how do i get started.?We Answered:These links should get you the basics then some: http://www.sunraysolar.com/waterheatingi… http://www.realgoodssolar.com/ http://solarenergylive.com/solar_panel_i… http://www.goarticles.com/cgi-bin/showa.… http://www.sacbee.com/103/story/831328.h… http://www.hacknmod.com/hack/screw-elect… http://www.tradebit.com/filedetail.php/4… http://www.greenchipstocks.com/videos/so… http://ezinearticles.com/?Solar-Panel-In… Good luck... Oscar Said:How can I get solar panels built on my school.?We Answered:No you don't need a licenses to create your on energy. Solar power is set to become more efficient and cost-effective with the introduction of thin-film photovoltaic cells. Compared to traditional silicon models, these cells use only a...

    How To Make A Solar Cell

    Everett Said:does anyone know how to make a heat generator?We Answered:PICK ONE FOOT SAME SIZE COPPER WIRE AND STEEL WIRE . TWIST ONE END TO MAKE A JOINT ABOUT ONE INCH LONG. NOW BURN THE JOINT WITH TORCH. ELECTRIC OUTPUT CAN BE OBTAINED FROM OTHER END TWO TERMINALS. IT HAS ABOUT 50MV DEPENDING ON THE HEATING TEMPERATURE. SERIES 50 OF THESE TO MAKE ABOUT 2.5 VOLTS DC. IT CAN LIGHT UP A SMALL 1MM LED (1MA).Wade Said:how to make a solar cell?We Answered:Here it is....

    How To Make A Solar Cells

    Milton Said:how can you make homemade solar cells?We Answered:You can make solar cells in your kitchen, according to this article: http://www.instructables.com/id/My-home-… You can put cells in series for more voltage and in parallel for more current. I didn't go through this article, but I doubt it is even close to practical for home power generation.Jessica Said:homemade solar cells?We Answered:The only home-brew solar cells that I know will work are of the copper oxide type. Try the site below or do a search on "CuO solar cells":Bradley Said:How environmentally friendly are solar cells *really*?We Answered:Rich, your researcher friend working for the military is...

    How To Make Solar Cell

    Dorothy Said:how do you connect solar cells to create one big solar cell? Plz make it detailed cuz I'm new @ this...?We Answered:plug them together in series. ...

    How To Make Solar Cells From Scratch

    Naomi Said:How to make an object that can work on a solar cell?We Answered:Hi - Sorry, I am unable to give you details (lack of time) but what I can do is direct you to these web pages. With the first link: Scroll down until you find a suitable Grade level and experiment that fills your needs. The second one: Lists projects under different Topic headlines. I hope you can find a good fit for you. Have fun and good luck.Bill Said:How to make an object that can work on a solar cell?We Answered:make a simple motor. easy to make, cheap, and impressive...

    How To Make Solar Cells

    Stacey Said:How hard is it to make solar cell from scratch?We Answered:Extremely difficult. Solar cells are semiconductor devices, just like computer chips, but less complex. Very expensive equipment and ultra-pure materials are required.Leona Said:I want to do the science fair project with solar cells. Does any one know how to make plastic solar cells?We Answered:you can't make solar cells of any kind, no more than you can make an IC or transistor. You have to buy one. .Daisy Said:Where are we gonna dispose of mercury, lead and other battery materials and materials that we make solar cellsWe Answered:Where and how they should...

    How To Make Solar Panel

    Wesley Said:how do to make solar panel effectively and cheaply?We Answered:If you are interested in learning exactly how to generate power effectively, cheaply and reduce your bill then this is the perfect resource for you! With the ever increasing costs of living, there is no better time than right now to stop throwing money out the window and start generating our own electricity. Keep try......

    How To Make Solar Panels

    Kevin Said:My son is doing a project and he has to make fake solar panels. How do i do this and with what materials?We Answered:I'd agree... if they're fake, you could use tinfoil, or even green cellophane (which looks more closely like panels). ....

    How To Manufacture Solar Cells

    Olga Said:Genuis, simply GENUIS running major corporations...?We Answered:Marriage and Divorce? Did you select the wrong topic? BTW he meant, zero emissions DURING OPERATION. Yes every manufacturing process creates emissions. It would be the tailpipe emissions for the useful life of the vehicle that they are concerned about. Try to get real before stepping up to the soapbox. Oh, and try the correct category.Jerry Said:how are cell organelles like space stations?We Answered:Ribosomes more or less produce the proteins in the cell, so a solar cell wouldn't work. You could say that the mitochondria is...

    How To Solar Panel

    Derek Said:Does A solar panel have the capacity to run a Factory? If so How Much Would It Be?We Answered:You'd need a very, very big solar panel (or lots of solar panels) to run something as big as a factory. But the exact size/number depends on the size of the factory and what it does. Your first step would be to calculate the factory's power needs, including heating, lighting, appliances, machinery etc. How much electricity do all these draw and for how long per day? See this article, about a factory which runs on solar power. Note that it is a...

    How To Solar Panels

    Rick Said:Where is it possible to lean how to instal solar panels in North Carolina?We Answered:I dont know what difference it would matter state wise but Radio shack has small solor panels and I'm sure you could qiuz them a bit about installation issues, from there if your trying to say install solar on the roof of your home to light say a few outside lights try lowes or home depot electrical department allthough to be honest there isn't a lot of technical to basic solar I wish you well in your quest....

    How To Solar

    Thomas Said:How long does it take for light to cross our solar system?We Answered:Pluto is about 5 light hours distant from the sun, so using that figure would give you 20 light hours from one side of the Kuiper belt, across the solar system to the other. However if you include the Oort cloud which is thought to start past the Kuiper belt and extend out to 1 light year, then the answer would be about 2 light years.Sean Said:how many watts is in a volt or vise versa im trying to make a solar system and need to convert...

    Hybrid Solar Cell

    Henry Said:Isn't this solid proof that Bush is deliberately betraying America so Oil corps can steal more profits?We Answered:Electricity from solar cells is not free. the typical home installation produces approximately 4000 kilowatt hours of electricity per year. the system costs approximately $30,000 installed. The second mortagage that you will put on your home to finance the installation will have an interest rate of approximately 8% or $2,400 per year. that is a cost of approximately 60 cents per kilowatt hour of electricity. $2,400/4,000 kilowatt hours = $0.60 per kilowatt hour = 60 cents per kilowatt hour. That is far more than you are paying for...

    Hybrid Solar Cells

    Kathy Said:Is technology able to build it?We Answered:We definitely have the technology, but there is more to consider in its wide-spread use. We have to look at the political and economic ramifications of not needing gas engines. I'm sure tax payers don't want to see a hike due to now-jobless gas station attendants, gas truck drivers, refinery and drill workers collecting unemployment checks for min. six months. The technology has to be gradually introduced so it won't shock the system... :)Dennis Said:Do people really drive more if they have a hybrid?We Answered:I have a hybrid and it doesn't change the...

    Infrared Solar Cells

    Ana Said:science plz help 2 questions 10 points?We Answered:1) Infrared (heat), Visible (obviously) and a small amount of ultraviolet (which gets through the screen of the ozone layer) 2) The greenhouse effect traps Infrared (heat) radiation . The ozone layer repels ultraviolet before it get to earth, and carbon dioxide does not affect the ozone layer.Arthur Said:Plzzzz Help with these problems?We Answered:1) Plzzzz do your own homework 2) Bad choice of categories for cheating on homework,Theresa Said:NEED HELP WITH AP BIO?We Answered:1c 3eAnne Said:science questions. please help if you know =)?We Answered:C D D (are you kidding) D B...

    Installation Of Solar Panels

    Albert Said:Why doesn't my shower heater work? Is it the solar panels?We Answered:4000 watts is far more than is normally on a single circuit, like your outlets. That's one of the reasons the instructions say the device must be wired directly into the service panel (switchboard). It's like a stove in its requirements. If you're in Costa Rica, get a solar water heater, and store the hot water in a tank. Return that shower heater, give it away, or sell it. It's extremely inefficient to use solar panels to store electrical energy, then try to heat water...

    Installation Solar Panels

    Sheila Said:People how many solar panels do I need for:?We Answered:I recently thought I wanted to do the same thing, after extensive research the best I could come up with was.... $1600 for a panel large enough to produce 208 watts. At that rate it would cost about $93,000.00 it you used 100 amps. Don't know your house's mode but in the peak months this might not be enough. That is just for the panels, you will also need storage (batteries) and a way to convert it to 120 volts. This is also pricey. Plus, the sun has to shine very...

    Installing Solar Panels

    Ashley Said:If Obama gave Wal-Marts a tax cut for installing solar panels could it help the economy?We Answered:It would create jobs, the workers would have an income and would spend the money. The people receiving the money would spend money. It all keeps the economy going....

    Large Solar Panels

    Alvin Said:Why must solar panels have a large surface?We Answered:for collect more sunlightVictoria Said:how much does it cost to make a large solar panel?We Answered:Quite a bit if you're talking about one that has a large, useful power output. When you factor in the time, research and prototyping that goes into making an efficient panel, it's best to look into simply buying one off the shelf unless you have a LOT of time and patience to kill. There are several kits on the market for roof installation on homes. They're very popular out in the US deserts....

    Low Cost Solar Cells

    Joel Said:Zener diode operation?We Answered:The Zener diode in your suggestion may be more expensive than a simple electronic timer. Common Zener diodes are only up to a few watts.Rebecca Said:Forget: "Is Global Warming Man-made"? + continue to be distracted from WHAT could do to Ensure Our SurvivalWe Answered:Global warming is caused by the Sun. There is nothing you can do to effect temps of something as massive as the Earths climate....

    Make A Solar Cell

    Paul Said:I am going to make a solar cell from 100 silicone diodes.?We Answered:I am afraid you are doomed to disappointment. Apart from the fact that silicone? diodes are not constructed to enable them to collect the suns energy, the material they are made from is not suitable for the photovoltaic effect. They can, however be used (assuming that the covering material can be removed which is possible in the old glass covered diodes) to detect light (requires an external power supply) which is considerably different to converting light energy to current....

    Make Solar Cell At Home

    Donna Said:Would you vote for me and whats your political party?We Answered:No. Tax rate is too low to sustain the duties of government, especially with your plan for investment in alternative technology, and more examinations, not counting pay increases. As for gun control, look at the murder rates in the USA compared to other western countries! And I am not a member of any political party.Cynthia Said:Has this ever happened to you?We Answered:I loved them all!! keep them coming please.Sue Said:Do you really know Jack ?We Answered:You voted for O'Bama???HAHAHAHAHAHAHAHAHAHAHAHAHAHAHAH… STOP IT 'YER KILLIN' ME!!!!HAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHA… wow, that was FUNNY!!!ha ha heee!! Don't get me started....hee...

    Make Solar Cell

    Sandra Said:How do you make a solar cell using blueberry juice trapped between glass coated with titanium dioxide?We Answered:full answer here: http://web.pdx.edu/~wamserc/Research/JCE…Kathleen Said:How do i make a solar cell?We Answered:google is your friend: http://scitoys.com/scitoys/scitoys/echem… actually you I don't think you need a hotplate to heat up the copper. A propane torch would work just as well. Anything which heats the copper up enough.Bobby Said:What items do I need if I want to make a solar cell and how would you go about doing it?We Answered:CEDT, Indian Institute of Science, Bangalore is looking for bright young candidates with an earned PhD in appropriate areas...

    Make Solar Cells

    Willie Said:How can I make solar modules from solar cells myself?We Answered:very carefullyShannon Said:Why don't we make black solar cells?We Answered:Solar cells don't absorb solar energy as heat. They absorb photons into the metal, which ejects an electron. The ejected electrons forms an electric current, and voila, you have solar power. The use of capturing heat would only make sense if that heat were then transported via tubes to a boiler, heating water, spinning a magnet in a coil of wires. But that's called a generator, and would be too complicated to use for home purposes. It would however...

    Make Solar Panel

    Fred Said:can i make a solar panel out of aluminum foil?We Answered:You can't make a solar panel to generate any reasonable amount of electricity from that. You need a semiconductor to start with, in order to have something that can generate free charge carriers(electrons and holes) from photons. Then you need a junction which can separate the charges. In principle you could make a Shottky Diode solar cell from copper if you could find a doped semiconductor to bond a sheet of it to the copper. To form a decent electric field there should be a significant difference in work functions between...

    Make Solar Panels

    Arthur Said:Does anybody make solar panels that can be used underwater?We Answered:of course , but u have to make a space for sunlight to get through ?x?and insulate it from cooling because of surrounding water , and ...Seth Said:Where can I learn to make solar panels?We Answered:There are many guides in making solar panels on the web.Just google them.Or you can check my source for reviews of them....

    Make Solar Power

    Willie Said:How do you make a solar powered oven?We Answered:Build It Solar has lots of different designs for making solar ovens. http://www.builditsolar.com/Projects/Coo… The main idea is to make a reflective surface, usually with aluminum foil, and focus the sun's energy into a box. You can see a store bought one here http://www.altestore.com/store/Energy-Ef…Beatrice Said:How to make the best solar powered oven?We Answered:Cool project. Its all going to be about concentrating the sun's rays onto one location. Mirrors, lenses and thermal insulation are three things you might consider using. 1 - Lenses can be used to focus sunlight onto...

    Make Your Own Solar Cells

    Henry Said:are these the only blonde inventions?We Answered:man some of these are damn funnyWillie Said:was it all just 'chance' ?We Answered:No. It is by design. But some people will never believe it because it conflicts with their religious views. Sir Fred Hoyle famously said that it would be like having the solar system packed shoulder-to-shoulder with blind men shuffling Rubik’s Cubes, and having them all hit upon the solution by chance—at the very same time.6 And that molecule would be useless by itself, anyway. At least some evolutionists admit how preposterous the idea of evolution is. Sir Fred hoyle was reduced to...

    Make Your Own Solar Panels

    Jackie Said:how do i make my own solar pannels?We Answered:Since you mention 1/4 watt, I assume that you mean solar electric panels. By the way, I think the kind of cuprous oxide panel in that example is more like 1/4 milliwatt. I know of no way for a consumer to make their own panels, other than buying individual solar cells, and wiring them together. And even this approach generally doesn't result in a product that performs as well, or lasts very long. A commercial panel is generally warranted for 25 years - it takes a lot to build...

    Making A Solar Cell

    Lucy Said:what is the process of making the solar cells from sand ?We Answered:The above is correct, but I will try to summarize. First make an ultra pure crystal of silicon, which can use sand as the first raw material in a very long, complex process. Then infuse tiny amounts of certain impurities, like phosphorous, into certain places in the silicon to make a pattern of different areas with different impurities. This takes expensive high temperature equipment. Then vacuum deposit a pattern of thin layers of metal, like aluminum, onto the pattern of impurities to pick up the electrons. Then connect very fine wires...

    Making Of Solar Cell

    Evelyn Said:Is silver used in the making of solar cells? ?We Answered:You may want to think about building your own solar panels… Let me start off by saying we (Agua-Luna) are a non-profit organization that live, promote and teach 100% “off grid” living and complete self sufficiency”. To give you an idea of this, we typically don’t leave the Ranch but once or twice a year. The following steps were taking directly out of a DIY guide I offer to those who would like to run their homes on solar power, reducing their monthly utility bills or even selling power back the...

    Making Solar Cells

    Armando Said:Do they use silver when making solar cells?We Answered:You could if you wanted, but it is not necessary. The main problem with solar energy has been the cost of making solar panels. If you start using silver, gold or platinum, you will only make them more expensive. By inventing ways of using cheaper materials you can make solar cells and thus solar panels cheaper. This way everyone will be able to afford them and they can go into wide use. Ever heard of solar ink? Its a new way of "printing" solar panels. If you...

    Making Solar Panels

    Clifton Said:Why are semiconductors used in making solar panels?We Answered:So that the accumulated charge of the battery is not discharged through the solar cell when the voltage of the cell drops in low or no light conditions. The devices are diodes, which only allow current to flow in one direction....

    Manufacture Solar Cells

    Herbert Said:cheap plants for "solar cell" manufacturing?We Answered:Nope. They are expensive...Angela Said:how the solar cell is manufactured?We Answered:one solar cell is one of thousands on a sheet made like waffles then numerous layers ( at least three) are cooked togther - with initial "wiring" determines how big (how many cells) the "saleable" slices will be/contain I think they are made in a "clean" room too like many electronics (guys in white suits and masks to avoid contaminating the "product" which would lose any efficiency if "flawed" I can't remember the exact technical aspects and procedures Some old National Geographic had an articale...

    Manufacturing Of Solar Cells

    Tanya Said:Is this even possible? "Electric" plants?We Answered:Nice question and an important one. First of all it is important to understand that the firefly system is based on two proteins, lucifein and luciferase, that form a bioluminescence core that will emit light given ATP and oxygen. luciferin + ATP ? luciferyl adenylate + PPi luciferyl adenylate + O2 ? oxyluciferin + AMP + light This is not an 'electric' response as written and occurs in either the peroxisome or cytoplasm of cells. However, the bulk of the ATP in cells is produced in response to an electrical potential or proton...

    Manufacturing Solar Cells

    Brian Said:Are all the socially conscious liberals going to boycott chocolate this Valentine's Day?We Answered:You must be kidding. You can't even get them to give up their SUVs.Anita Said:Do you think photosynthesis can be used to remove CO2 from the atmosphere?We Answered:Do I think photosynthesis can be used to remove CO2 from the atmosphere? In a word – yes. In a lot more words… Using Photosynthesis ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯ There are some proposals for combating climate change that are looking at mimicking nature. The forerunner in this area is the use of phytoplankton. These minute marine plants exist in vast numbers in some parts of...

    Manufacturing Solar Panels

    Marvin Said:Do you think we can convince Microsoft to manufacture solar panels, windmills, and air fueled cars instead?We Answered:Its an excellent idea, the ultra rich giving us much deserving rep rive from the brink of environmental collapse. If they do it would be because they just feel like looking like our environmental saviour. It could be that they hesitate due to concerns with how people are going to be able to handle their decisions ~~ remember the De Loren it promised to give us a break on rusting cars, it became a obsolete vehicle , sometimes doing good in the...

    Marine Solar Panels

    Ramon Said:Liberals: We are constantly discovering new things about FOX that discourages proper dissent...?We Answered:One would have to watch FAUX News in order to discover new things about it. I don't....

    Micro Solar Cells

    Stephanie Said:Have you ever pondered the direct correlation between the micro world and the macro world?We Answered:I ponder this quite often. You could also add relative time to this. What may seem like billions of years to us could be only seconds to a different perspective. In this sense Earth could very well be an electron (or the like) only a fraction of a perception of a second from total annihilation that seems to be infinite in our perspective.Chester Said:Would a ammeter work for an experiment that requires a micro-ammeter?We Answered:It just depends on the range(s) of the ammeter and...

    Miniature Solar Cells

    Elsie Said:How to hook up power supply or generator to house?We Answered:Single solar cells or small panels are not compatible with your household current and attempting to plug ANYTHING not designed for electrical outlet use is DANGEROUS and could be Deadly.The3 low amount of current generated by single cell or small panels would be negligible in any case.It takes dozens and dozens of cells or a large panel plus the connecting interface to have any real effect, Sorry. As to a generator,you need to meet certain requirements,particularly an approved transfer switch to hook into your home wiring.I suspect the cost...

    Monocrystalline Solar Cells

    Irene Said:Can 2 MonoCrystalline 5 Watts Solar Cell Charge a 12volt battery?We Answered:If the solar cells put out a minimum of 13 volts ...Yes...500 watt is = to .5 amp. It won't charge the batt. very fast but it will charge it...

    Most Efficient Solar Cells

    Vincent Said:how do you do this problem?We Answered:Hannah, The above answers are correct except for Q2: There are plenty of rock forming minerals that are not silicates, so this is not the reason. The reason is that they are so uncommon that their presence or absence in a rock is not considered a defining feature in categorizing the rock, thus they are not considered "rock forming minerals".Ben Said:Energy alternatives???We Answered:yes today it is deffinetly possible to produce enough energy in all possible means without ever using petroluem oil, you just have to find people with money will to make it...

    Most Efficient Solar Panels

    Anita Said:Smartest features for a house?We Answered:Ground source heat pump hooked up to your water heater. You get efficient heating and cooling and most of your hot water will be free.Catherine Said:What do you think is the most creative idea for an Alliterative Fuel Vehicle?We Answered:Electric cars are getting better when it comes to mileage per hour of recharging. But they still require energy, namely electric energy. Which begs the question "what do you think is the best idea for alternative production of electricity?" Maybe solar generation will be made more efficient over the next decade...

    Multicrystalline Solar Cells

    Ron Said:Multicrystalline?We Answered:Multicrystalline means a material that is solidified at such as rate that many small, variously oriented, crystals (crystallites) form....

    Multijunction Solar Cell

    Beverly Said:EDIT FOR SCIENCE!!!!!!!!!!!!?We Answered:I've read it 3 times and it looks very okay, grammatically-speaking. The sentences are correctly punctuated and the spelling is perfect. Good job!Claire Said:EDIT FOR SCIENCE!!!!!!!!!!!!?We Answered:1. do not use the word contrivance, it makes it sound unscientific. solar collectors are not color/frequency linked. I is light that causes the electrons to move 2. Carbon monoxide will quickly oxidize to CO2. while it is used in some mining operations to help split the metal from the ore, it is not in laundry detergents. It is used with methanol to produce acetic acidHolly Said:EDIT FOR SCIENCE!!!!!!!!!!!!?We Answered:‘The Spectrolab's Multijunction Solar Cell...

    Nanotechnology Solar Cells

    Cathy Said:What do they expect solar cell efficiency to increase to and what impact would this have on the use of solar?We Answered:There is more than one type of solar technology and it is getting more efficient all the time. All I know for sure is my PV system generates more energy than I was quoted and I will break even in about 6 years so I'll have about 18 years of free energy which will save me well over $50K. That's efficient enough for me.Gertrude Said:Use of Nanotechnology in Solar Cells and Hydrogen Cells?We Answered:It is predicted that nanotechnology...

    New Solar Cell

    Helen Said:How do you use a solar cell to charge a battery or capacitor?We Answered:The voltage of the solar cell has to be a few volts higher than the battery. A 12 volt lead-acid battery, for example, requires 14-15 volts to charge. This is complicated by the fact that the voltage out of a solar cell depends on the intensity of the sunlight, and the spec is usually at the brightest noontime sun. So typical output could be well less than the spec. Re current. If you have a 10 amp hour battery, it requires 10 amps for one hour...

    New Solar Cells

    Lewis Said:u heard of this new solar cell phone?We Answered:yes i did herad it is a perfect idea it will cool because it will greener and also we wont have to worry about chargin itBrad Said:Does a Muslim scientists creation of a "new solar cell" reflect new light on Islam's image?We Answered:no and they should be ashamed of falling from grace by reason of insane religious copy rather than keeping up with science and and logical advancement . Shame on them for emotional religious fanaticism and the fervor of the sword . Old accolades are not an excuse but point...

    Off Grid Solar Power

    Victoria Said:Why aren't wealthy liberals using solar, geothermal and wind power to get off the grid?We Answered:Why aren't wealthy liberals using solar, geothermal and wind power to get off the grid? The key word is wealthy,,,, a wealthy person has some business smarts , regardless of affiliation,, ** excluding any government grants***** Removing " carbon foot print" and other feel good things out of the equation , adding solar panels and wind mills costs lots of money and the payback is well past 20 years for whole house systems. Water heating only ,, return may be only 5 or so years. So...

    Organic Solar Cell

    Sherry Said:Cell Organelle Superpowers project?We Answered:nucleus-mind control nucleolus-ability to make matter appear out of nowhere chloroplasts (technically aren't in humans)-ability to make own food (photosynthesize) mitochondria-super speed ribosomes-super strength cell wall-invincibility vacuole- super intelligence (knowledge could be stored in vacuole) lysosome-immunity to toxins cytoplasm-ability to grow to epic proportions ER- elasticity (like mr. fantastic) membrane- x-ray vision...

    Organic Solar Cells

    Dwayne Said:organic solar cell market share and analysis?We Answered:my guess is you would have to invent that puppy.Dora Said:10 companies working on organic semiconductors?We Answered:You should take a tour of Arizona State's Flexible Display Center sometime.Jessie Said:Advice from fellow physicists!!!!?We Answered:I'm a chemist. I can not say for sure but I find it really really hard to believe that you will learn "every concept from physical chem next year in my physics classes". My question is WHO told you that? My guess is they are either distorting the facts, ignorant or out right lying, but hey, ya...

    Photovoltaic Cells Solar

    Rhonda Said:What is photovoltaic cell ?We Answered:Basically a photovoltaic cell converts light into electricity. They are often used to covert solar energy (light) into electricity. Each cell can produce a small amount of energy so it takes many of them to produce a source of energy that could be used to power your house. Edna Said:i need help on ideas for my physics project?We Answered:good answer is oceanography...

    Photovoltaic Cells Work

    Lewis Said:10 points for best answer !!!!!!!???????.........?We Answered:Hate to say it but it depends on the photocell you are using. A photocell is made up of PNP junctions or NPN junctions (referring to the semiconducting materials). These are transistors and you need to overcome the cutoff voltage (VOC) which is 0.7 V. So if the light intensity is too low, you won't overcome the cutoff voltage. Not sure what the minimum intensity is, it depends on the type of solar cell youre using, thin-film type, or mono or poly crystalline.Nicole Said:Could entropy be converted into useful energy?We Answered:Entropy define the...

    Photovoltaic Solar Cell

    Veronica Said:photovoltaic,temperature?We Answered:I don't know about your particular cells, but most cells you can buy will not be rated for concentration. That said, it would probably work. In normal panels, it's not unusual to have the cells heat up to ambient+35, or say, 75 C on a hot day. If the water is there as a coolant, you can probably keep the temperature within that range. If your intention is really to boil the water, then as you say, it will get to 100 C or more, depending on the pressure in the system. This sounds like a fun project, but...

    Photovoltaic Solar Cells

    Roberta Said:At the atomic level how does a photon get converted to an electron?We Answered:For those who have a need to know: https://classes.yale.edu/04-05/enas627b/… . There is a flow, the photosites are recharged. Has knowing about your image recording media died along with film?...

    Photovoltaic Solar Panels

    Scott Said:glass Photovoltaic placement?We Answered:Solder wires (stranded preferred) to the tabs first, then mount the panels. Plywood back with an outline frame of thin wood for the front would work fine, or you could just use RTV (silicone seal) to glue the panel to the plywood. For a neat job, chisel or route channels for the wires into the wood so the panels will sit flush....

    Photovoltaic Solar Power

    Lisa Said:Dumb or What?We Answered:I got one too! The battery is needed to (turn on) and maintain that the workings work properly but the, (sun or light) controls the calculating properties!April Said:anyone from Iran?We Answered:i am Iranian my answer to your first question yes, fossil fuel is polluting the environment so another source of energy might be helpful to reduce the pollution, to your second question, i can say that, you are in a big mistake, the country's purpose of making nuclear energy is not just having "energy". It's more about having power, and i believe they're making nuclear bomb, not all...

    Plastic Solar Cell

    Christine Said:Which set of materials would make the best electromagnet?We Answered:If you are making an electromagnet you need an iron core, wire to wrap it and a source of electric current. Answer d is the only choice...

    Plastic Solar Cells

    Herbert Said:Solar powered motor combined with capacitor?We Answered:The capacitor would not do anything under steady conditions but it might help stabilize the voltage if you had varying light conditions. The capacitor could provide a bit of current when the light first dims but it would quickly discharge and you would be back where you would be without it. Marlene Said:Cell phones in space ? to keep going for ever and ever with no end?We Answered:The radio waves of a cell phone radiate, so the inverse cube law applies to the signal strength. The normal range of a cell...

    Pn Junction Solar Cell

    Marion Said:Why is the I-V characteristics of a solar cell (based on the pn junction diode) drawn in the fourth quadrant?We Answered:As a diode, it's reverse-biased....

    Polycrystalline Solar Cells

    Irene Said:where can i find a 37mm-by33mm polycrystalline solar cell,part#scc3733.?We Answered:http://www.solarbotics.com/products/index.php?search_id=883Stephanie Said:What is a polycrystalline solar cell?We Answered:A polycrystalline solar cell is a type of solar cell which is made from a block of silicon that has multiple crystals. These panels are square in shape, and may have a surface that looks somewhat like a mosaic. That’s because of all the different crystals that make up the module. Polycrystalline solar cells are typically less efficient than monocrystalline solar cells, which are made up of only silicone crystals, but are cheaper and easier to make....

    Portable Solar Cell

    Bertha Said:R/F Complete i'd say Batteryman Deck?We Answered:just going to put it out there but honest would be a really good idea and there easy to get now that everyone has to give up 1 sad face for new formats everyone running lightsworns/zombies cried....

    Portable Solar Cells

    Martha Said:Apple's future and other biotech stocks?We Answered:I think that apple has a bright future unless there is another large economic downturn. Cellular phones seem to have gone pretty far and I do not know how much farther they can go.Jamie Said:Please, does anybody know a good reliable website, that you can pay by debit.?We Answered:check amazon, you can pay through a checking account and they have many things. I think the parts should be a separate question...Glenda Said:I am researching on alternative types of power sources to battery. Any help?We Answered:soon there will be small hydrogen fuel cells...

    Portable Solar Panels

    Scott Said:Backup batteries and solar power?We Answered:Just get one of those 10 or 15 watt panels you should be able to get where you buy that pack. It should charge it in around four good solar days. So long as you can regualte the voltage to around 14V, and use a blocking diode to keep battery back feeding into the charger, you should be fine. I don't have one of those packs, instead I have a straight 35Ah AGM cell with a 15 watt PV panel, charge controller, and 400W inverter. The system so far has mostly kept up with my nighly...

    Portable Solar Power

    Kristen Said:Where can i find a portable solar device that will power a Creative Zen Video M?We Answered:try radioshack or look onlineDave Said:Solar power box?We Answered:It would be much cheaper and more reliable to continue to use power off the grid.Joanne Said:Someone who knows about solar/portable electricity.?We Answered:The specs given for this unit don't seem right. As someone else said they are usually advertised to supply more than you will actually get. I'd suggest battery powered lights. If you simply must have more power then you should consider a gas powered generator. When considering you power needs, you mentioned operating a...

    Power Solar Cell

    Harvey Said:Is there a limitation of power receive per square meter of solar cell?We Answered:There are two limits that I know of. The sun only puts out so much energy per square meter. So if you depend on the sun shining on the solar collector directly, there the limit called the solar constant (see ref 1). It is measured by satellite to be roughly 1366 watts per square meter. It reduces when received through the atmosphere. If you use mirrors to shine on the solar panel, you can now have an enormous amount of sunlight (in theory anyway) on the solar...

    Power Solar Cells

    Olga Said:How many solar cells are required to produce a power of about 6-7kw(kilo watts)?.?We Answered:It depends on the amount of solar flux your panel has falling on it and the efficiency of your panel. I'm assuming that you mean photovoltaic panels At high noon, you may get a flux 1100 W/m^2 on your panel, other times of the day, may be significantly less. You can design a tracking mount, whic will help keep the sunlight incidence angle normal to your panel. The panel itself, depending on design will have an efficiency of 12-25%., so, for best case (high noon...

    Power Solar Panel

    Nelson Said:Can a LED light be used to power a solar panel?We Answered:Sure, any visible light will produce power out of a solar cell. .Casey Said:Time it takes to charge a 1000uf capacitor with low power solar panelWe Answered:CV = IT 1000uF * 0.25 = 50ma * T 1mF * 0.25 = 50ma * T T = 0.005 sec Assuming the current remains constant. .Jean Said:Should the US transform a hundred thousand acres of western desert into a solar panel power plant?We Answered:Anyone who has driven from Vegas to Arizona will have seen large arrays of solar panels. They are in uninhabitable areas of no...

    Price Of Solar Cell

    Minnie Said:What is the most likely energy source that can replace fossil fuel?We Answered:Electricity, is the only truely renewable energy source there is, given that we can produce it by harnessing natures power. How it will be produces will probably be in a veriety of ways, most likely being hydroelectricity, so tidal power or dams as its the only way in which a reliable and constant power source can be achieved in all weather conditions. However, scientists are working on creating a sort of "minature sun" here on earth, which would give out vast amounts of energy which can then be...

    Price Of Solar Cells

    Clifford Said:why aren't solar cells becoming more widely used?We Answered:Solar cells can now be mass produced on thin stainless steel sheets with decent efficiency. The cost is still higher than conventionally produced electricity, but it is within reason. I think the main reason it hasn't caught on is the issue of storage. How do you store what is produced during the day for use at night. It really isn't fair to ask the power companies to keep their turbines spinning in the event the sun goes behind a cloud or we have a few rainy days...

    Printed Solar Cells

    Ida Said:Why can't the government just print lots of money in order to help the environment?We Answered:it is called inflation....

    Purchase Solar Cells

    Bessie Said:Tax Cut and Energy Efficient Windows Purchase?We Answered:That credit disappeared for 2008. Sorry, but nothing you can do about it.Cynthia Said:What is the difference when they say the output is in "X" volts, output is in "Y" watts?We Answered:Watts = Total Power regardless of system Voltage= system Amperage= current Watts= Volts * Amps Simply put, the voltage is the system that you are working in, it is kind of like electrical pressure. Amperage is the flow, or rate of the flow of power that is happening within that system that you are working in. Wattage is the total power produced. If...

    Purchase Solar Panel

    Elsie Said:how can I make my own solar christmas light string?We Answered:I doubt it. These use the panels to charge a battery. They disperse to a low energy bulb. Your strings of lights are for 120vac i am sure and will drain the batteries fairly quickly. You would have to go large scale solar panels with large battery packs and a converter. Expensive....

    Purchase Solar Panels

    Lena Said:How do I start up a non-profit organization?We Answered:I have found a website that compiles various resources on starting a non profit. I especially like the Minnesota Council of NonProfits because the site gives information on governance, developing strategic alliances, fund raising and other ingredients of successfully running a non profit. http://www.lib.msu.edu/harris23/grants/z… As for funding your non profit, I suggest you check out Foundation Center to help you gain ideas on how to properly establish your organization and get support from private foundations. They have the most extensive database of private donors, and they publish a magazine that can be...

    Q Cells Solar

    Emma Said:A calculator draws 15mA of current from a solar cell for 25 seconds. Calculate the total charge.?We Answered:I'm not sure if the Coulomb number is 6.24 or 6.23 in the mantissa, if you're being really stringent. The number of electrons passing through per second are 0.015 A x 1 s x (Coulomb), so your second answer is 25 times too high. Otherwise, looks great. Thank you for attempting the problem then asking for verification. Too many students don't even try, they just post and want others to solve their problems....

    Quantum Dots Solar Cells

    Irene Said:can we use quantum dots as a solar cell comercially?We Answered:Definitely! Quantum dots offer the potential for an improvement in maximum efficiency of solar cells from the present 25% to an incredible 70%. They have the potential for doing this by taking advantage of some of the properties that make quantum dots unique. First, quantum dots allow us to increase the bandgap available for absorption. Current photoelectric cells have only a certain specific energy level at which electron conduction occurs; i.e. a specific band gap. This limited band gap only takes advantage of a small portion of the energy spectrum hitting the cell. Quantum dots, however, allow us...

    Quantum Efficiency Solar Cell

    Jimmy Said:plants and photosynthesis?We Answered:Cooler yes, but not only through photosynthesis. Leaves are living things so they evaporate some water to cool off as well just like mammals sweat. The efficiency of photosynthesis is not very good and it depends on amounts of water, oxigen, carbon dioxide and other metabolic agents. Different plants also grow at different rates....

    Roof Solar Panels

    Donna Said:When Ronald Reagan had the solar panels removed from the roof of the White House -- was he supporting alternatWe Answered:it seems it was actually 6 years later. http://www.jimmycarterlibrary.org/newsre… and, like the view of most Americans, it was inconvenient. if you read the piece, Carter was quite prophetic. it is now a museum piece....

    Scrap Solar Cells

    Veronica Said:What is the alternative to carbon based fuels?We Answered:Short-medium term would be nuclear power, renewables & gas. David MacKay demonstrates in 'Without Hot Air' ( http://www.withouthotair.com ) potential methods of providing our energy supply. My preferred method in the short term is average pollution limits from power stations (like mileage standards in cars I guess), then let the market work out the cheapest solution. I imagine that it would (in the UK) look something like 40% nuclear, 20% wind, 10% hydro/biomass/tidal/marine/solar and 30% gas and carbon capture coal. As time goes on, prices will come down and solar (for example) can be expanded....

    Selective Emitter Solar Cell

    Jeffery Said:What is a selective emitter on a solar cell?We Answered:A substance in which emissivity varies with wavelength...

    Semiconductor Solar Cell

    Ana Said:in a solar cell, do electrons flow through a circuit from the electron rich or electron poor semiconductor?We Answered:A solar cell is made of a semiconductor. If you look at some versions of a Periodic Table of elements the semiconductors are identified with a different color. Semiconductors let their outer shell electrons go when just a little energy is applied. Notice that silicon is in this group, silicon is what the majority of today's solar cells are made of. The first time the solar effect was noticed selenium was used, notice it too is in the semiconductor grouping. Also...

    Si Solar Cell

    Elmer Said:Would someone like to give me their two sense of this chemistry problem?We Answered:the actual equation is 2 Mg(s) + SiCl4(l)---> 2 MgCl2 + Si(s) a) There are 4 electrons per atom of pure silicon because silicon is coing from a Si4+ charge to an Si with a neutral charge. Therefore 4 electrons are transferred. b) the product of pure silicon is a reduction reaction. This is because Silicon is gaining electrons and reduction is the gain of electrions (an easy way to remember that is OIL RIG = Oxidation is loss, reduction is gain) P.S. it's give your two...

    Silicon Solar Cell

    Freddie Said:How does one construct a monocrystalline silicon wafer solar cell from scratch?We Answered:basically you need a wafer fab, its not something you can make in your garage. companies spend millions making pure silicon wafers fabs... but if you want reading material...Joy Said:Silicon strip for solar cell?We Answered:Just break open few old electronic calculators and take the chip from them if you want more then you better find out in a scientific shop where they sell products for physics labs in schools and universities.Nathan Said:what are the differences between nano carbon tubes in solar cell & normal silicon...

    Silicon Solar Cells

    Terry Said:Why is the efficiency limit of silicon solar cells 29%?We Answered:The efficiency of a silicon solar cell is generally dependent on the band gap energy of the silicon-dopent barrier. Band gaps fundamentally limit the radiation frequencies a solar cell can convert to usable power. I have listed a couple of WEB pages that may help you. Newton1Law...

    Silicon Solar Panels

    Pearl Said:The decreasing costs of manufacture of silicon, LED, solar panels ??We Answered:One major reduction in silicon costs has been with the use of amorphous, microcrystalline and polycrystalline silicon, particularly in solar panels, detectors and displays. These forms of silicon do not have a perfect crystal structure and so will have the critical performance needed for processors, but the reduction in cost more than compensates for the electrical loss with other applications....

    Simple Solar Panel

    Cynthia Said:How do you make a solar panel?We Answered:They're made from photoelectric materials that can be replicated easily enough with trips to the hardware store. Here's the link to how to make a rudimentary solar panel that won't cost you a fortune to make: http://www.thesolarplan.com/articles/you… It's pretty basic, but I hope this helps!...

    Small Solar Cell

    Daisy Said:Where can I get a small solar cell ??We Answered:West Marine...

    Small Solar Cells

    Clifton Said:Help, trying to connect small solar cells to MP3?We Answered:You need to at least get a led light to test out the leads. By process of elimination, you should be able to figure out which wires are which. http://www.wonderhowto.com/how-to-wire-s… http://www.ehow.com/how_4699291_wire-sol… Good luck!Ida Said:What can you add a small solar cell to?We Answered:not much. they are toys to build demo circuits with like run a little electric motor I recently bought a roll-up 12V cell for a boat rated to charge batteries, cellphones, ipods etc with a cigar lighter socket on it. It's about 3 sq ft and cost about $300Andre Said:i...

    Small Solar Panel

    Stephanie Said:how many watts does a small solar panel need to work?We Answered:You've got the question backwards. The power output of the solar panel is rated in watts. So you need to determine how many watts are needed to run the equipment you want powered with the solar panel, then you can decide what size solar panel you need. You can buy panels here - http://www.altestore.com/store/Solar-Pan… Or are you trying to power the solar panel with a lightbulb instead of the sun, and you're asking how many watts the lightbulb needs to be? What is your experiment, maybe we...

    Small Solar Panels

    Javier Said:were to buy small solar panels that work good?We Answered:here is a site that tells you how to make them... all with parts that can purchased at home depot, or local hardware store http://www.earths-renewable-energy.com/Erica Said:I have 5 small solar panels with a + - on each one how would i hook them up to create the most power?We Answered:You cannot create the most power. The power of the cells is determined by how they are made. Power = Volts * Amps. If you hook up all the positives (+) the voltage will remain the same, the current...

    Solar Battery Cell Phone

    Alan Said:Is there a way to store kinetic energy from the human body to charge say a small battery?We Answered:Yes there are several torches on sale in Europe at least and the clockwork radios must be close cousins - I don't now how the wind up is converted to electricity but a battery intermediary would seem sensible.Catherine Said:Can a battery charge and be used at the same time?We Answered:This can be done and is done all of the time. As long as the Current (Amps) output of your Charging Device (Solar Panel) is greater than the Amps required by your...

    Solar Cell Animation

    Arlene Said:Is suspended animation at cryogenic temperatures a good future strategy for manned space exploration?We Answered:You've got a couple of questions in there - not that I mind, they're good questions. :> 1. "...does the potential for such technology warrant a renewed look by private industry and by government researchers?" Even without any bearing on manned space travel, absolutely. Think of the applications for medicine, to name a field... if we can put people into safe suspension for even 24 hours, imagine how much more effective and safer surgery would be. 2. Now, as for manned space exploration... "it depends" kind of...

    Solar Cell Application

    Samuel Said:photocell application(how do I wire in place for lighting?)?We Answered:Check out the products at http://www.realgoods,com They are one of the best sources for all sorts of solar charging units, small to large, and all of the hardware and accessories for utilizing them. They probably even have an integrated spotlight with a solar rechargeable power pack. Incidentally, you are not actually talking about a "photocell" -- that's a light activated switching device (like the things mounted on street-lights that cause them to turn on at dusk.) Your question is about "photo voltaics" which is the term for devices that convert...

    Solar Cell Applications

    Eugene Said:Anti matter questions for applications?We Answered:Anti-matter will destroy any matter that it touches. They will mutually annihilate each other. An anti-matter cancer cell would not seek and destroy matter cancer cells. It would simply destroy any living tissue that it touched with quite an explosion (something that you don't want in your body). Anti-matter has the same gravitational properties as matter. It also has the same magnetic properties as matter, so any magnetic fields that you produce by spinning charged anti-matter particles can also be accomplished using regular matter. Not all matter spins the same way. There is one planet that...

    Solar Cell Array

    Emily Said:A solar cell array consists of 84 solar cells in series, and produces a total potential difference of 120 V.?We Answered:In series circuits, the pd adds up as a sum of the individual sources. So for example, if you had two 3V cells in a circuit connected in series, then the total pd would be 6V In your solar cell arrangement (assuming) each cell produces the same pd, all 84 cells must add up to a total of 120V So mathematically 120/84 = 10.6V each (rounded up to 1decimal place) Hope this helpsAnna Said:Can a solar array power a dc motor even...

    Solar Cell Basics

    Phillip Said:Why do some christians continually misunderstand the word "theory"?We Answered:Evolution is not false because it is a theory, it is false because it never happened. What is confused is the difference between micro and macro evolution and random single point mutations and variation experienced through a non-random system of gene manipulation. Many people, including yourself, quote the common mantra that macro evolution is just micro evolution over a longer time. That is just not true and that is where your theory of evolution actually turns into a brainwashing mind game of bait and switch. You observe a million examples...

    Solar Cell Batteries

    Michelle Said:Can solar storms affect wet cell batteries as well as dry cell batteries?We Answered:Solar storms reaching Earth may affect anything connected to a sufficiently long wire (e.g. telephone, telegraph, power line), but have _no_ direct effect on batteries of any sort, not even solar cells (unless they're outside the atmosphere).Jeffrey Said:Does it mean anything significant if the amount of water needed for four deep cell solar battery pack ----?We Answered:If I understand your question you have 4 total 6 volt batteries constituting a bank of 4 batteries in series/parallel, which should produce a high capacity 12 volt output. First...

    Solar Cell Battery Charger

    Melvin Said:solar battery charger?We Answered:google it...

    Solar Cell Battery Chargers

    Tommy Said:How do I set up 12 volt battery system for 110 volt use?We Answered:You can add batteries to help hold the voltage constant for a longer period of time by connecting them in a parrallel circuit with each other. This is done where you connect the positive terminal of one battery to the positive terminal of the next battery, and then to the positive terminal of the next battery, and so on. Repeat the process with the negative terminals, and finally, connect the inverter. You should still have 12 volts between the last battery terminals, but you will have...

    Solar Cell Battery

    Clyde Said:Charging a battery using a solar cell?We Answered:I had similar issues when building a UPS myself. What happened was I hooked up a volt meter to the batter, and then attached a series of relay gates so that when it achieved full charge, the power generated was routed to the load, or if there is no load connected, a series of heavy duty (for long life) resistors. This prevents the battery from over charging, it may not be the best way to do this, but it will work for a while. If using SLA batteries, you may not even need...

    Solar Cell Build

    Dwayne Said:How much do edge chips on a solar cell reduce its maximum amperage?We Answered:If the conductors in or to or from the cell are broken, it will reduce amps by one cell's worth. If possible, measure the output of the individual cell before connecting it. I don't know enough about the details to know for sure but your math suggests you are not building a 100 W panel, you are building a 88 W panel. As far as affecting your output too much, that depends on what you are doing with the output. As...

    Solar Cell Buy

    Herman Said:Is a reflective glass a conductive glass ? I need buy this stuff for my solar cell project?We Answered:No. and if you think about it, you don't want reflective glass at all - it will be reflecting the power/light you want to strike the semiconductor. And the chances of your buying conductive glass at a glass store are about nil - it is only used for things like what you want and from a specialized source and I can't name a place.Scott Said:Where can i buy solar cell in calcutta?We Answered:go to any electronic shop best wishesJoann Said:where...

    Solar Cell Calculator

    Jeanne Said:Does a Solar Cell Calculator also need batteries? I don't see anywhere on it to replace them.?We Answered:Some solar cell calculators also have batteries, it will usually say dual power, or solar/battery. If there is no door or place to open the back where batteries would go, then it's full solar. The solar cells can go bad over time so if it quits working it just might be time to get a new one....

    Solar Cell Car

    Danny Said:how to conect 6 volt solar cell to rc car?We Answered:I don't know the voltage of the batteries in the Radio Controlled car but as long as the solar cell is outputting a slightly higher voltage than the voltage of the car, it will charge the battery in the car. You then connect the positive to negative terminals. But if the solar cell isn't putting out a higher voltage, the car battery will discharge through the solar cell unless there is a diode in the system to block reversed voltage. That should be somewhere in the...

    Solar Cell Characteristics

    Sue Said:Help with Biology midterm study guide part 1?We Answered:Here's a great site giving the definition of most of these words. Good Luck! http://www.phschool.com/science/biology_…Joan Said:Lefties, Libs, Yuppies, Tree huggers, etc...?We Answered:You just assume because I'm on the left I'm a vegetarian, tree huger and basically just a pussy. Sorry, you know nothing of me.Franklin Said:for obtaining max power from a solar cell it should be operated on knee voltage of VI characteristic.explain?We Answered:I'm not sure how you define the "knee," But for a given solar cell, and a given level of illumination, there is an...

    Solar Cell Charger Circuit

    Tanya Said:How do I transfer electricity through glass?We Answered:You can use two pot core halves: http://sound.westhost.com/p69-f3.jpg You will pick a core that is substantially larger than the thickness of the glass. You put the same number of turns on each one. The inductance of one coil should be 10-100 uH. Now you make the coil resonant by adding a small capacitor either in series or in parallel. A good resonance frequency would be between 50-250kHz. The lower end is actually better if you care about EMI/EMC because in the US the frequency range below 150kHz is not regulated and your design will...

    Solar Cell Charger

    Dwight Said:Give me the Review and Related of Literature of Solar Cell Cell Phone Charger [Local and Foreign] im from ph.?We Answered:hers a bunch of them http://froogle.google.com/froogle?q=sola…Seth Said:Solar Charger for cell phone?We Answered:The best ones you can get are eitehr the powermonkey (which is ok) or the solio solar charger - which imo is perfect. They both charge most varieties of cell phone and ipods/mp3 players (you can check the attachment listings befroe buying) and you can charge them from the mains too. http://www.solarpoweredchargers.com/2009… http://www.solarpoweredchargers.com/2009…Wendy Said:What is the best solar charger for cell phones?We Answered:It depends on how you intend to use it. On-the-go is...

    Solar Cell Chargers

    Allen Said:Does/Can a solar cell battery charger extend the life of a car battery?We Answered:It could. Lithium batteries (like in cell phones and laptops) like to be fully dis-charged before re-charging. Lead acid batteries (car batteries) can go completely dead if fully discharged - so, theoretically it could stop that from happening.Charlene Said:Does anyone have experience with solar chargers for Ipods, cell phones, etc. I have checked and the prices ...?We Answered:I tried it, it's not really worth it. Depending on the charger, you need at least 8-15 hours of uninterrupted sunlight for a full charge on an ipod (varies...

    Solar Cell Cheap

    Lester Said:where can i get materials for my robot?We Answered:You can use materials like aluminium and plastic? You can get it by buying can drinks. It's environmental friendly and cheap. You can always recycle the material while not wasting resources....

    Solar Cell China

    Leroy Said:Is this why you voted democrat? We needed to save the economy and the planet. Stimulus and Green jobs ...?We Answered:This is exactly why I DID NOT vote democratic. Having a little bit of insight into the alternative energy businness I know that we do not build enough solar panels in this country to satisfy domestic consumption. I know many of the companies involved in wind power like GE, Vestas and Siemens actually build components in low cost areas which do not generate manufacturing jobs in this country. I keep asking what is wrong with drilling...

    Solar Cell Circuit

    Chris Said:in solar cells, would diffusion potential or internal resistance in the cell limit the short circuit current?We Answered:You can model the solar cell as a battery with a series resistor. So when you short the output, the current is limited by the resistor, which is the internal resistor. Short circuit current is measured by a current meter, which has very low resistance, so that the voltage drop across the meter is almost zero. But the voltage of the solar cell internally is on the other side of the resistor, so it can be what it wants to...

    Solar Cell Circuits

    Stella Said:how do i find the internal resistance of a solar cell?We Answered:Connect a resistor bank in series to your solar cell and a voltmeter parallel to your resistor bank. Vary the resistance and record it with its corresponding voltage reading. Assuming the Solar cell is a current source, its internal resistance would be equal to its load resistance when maximum power is delivered to your resistor. To get maximum power delivered by your solar cell to the resistor, plot power (P=[V^2]/[R]) against resistance R. Look for the point where Power is highest and you have maximum power. It's corresponding...

    Solar Cell Coating

    Fred Said:physics question......................?We Answered:Assuming the bottom of the pipe is sealed off...pee in the pipe. Little bit gross, but hey, you have toilet paper their to wipe yourself and the ball....

    Solar Cell Companies

    Lauren Said:Question : solar car?We Answered:1) light weight and low friction. 2) see solar cell link 3) Public relations and advertising....

    Solar Cell Company

    Lawrence Said:help me plz to know the financial value of the company .?We Answered:You need to look at their P&L statement.Erin Said:Opinion of women who work for their husbands?We Answered:I think your looking at it the wrong way. You shouldn't be insulted at all. He knows the job his new company needs, he feels you'd be best for it. He's also probably trying to get you more involved as a husband and wife team and help build the business together. Making a life together with this business. Not a bad idea at all. If...

    Solar Cell Comparison

    Joseph Said:Is vegito the strongest cartoon character ever?We Answered:You are tottaly right. I also agree that the Dragonball Z/GT characters are the strongest ever created, in other words, no one can beat the Z Fighters team. You are right about the fact that Vegito is stronger then Gogeta if they were at the same power levels. For example, if you take SSJ2 Gogeta (from movie 12, The Re-birth of Fusion), from the fight against Janemba, and SSJ2 Vegito from the fight against Super Buu, then SSJ2 Vegito would definately win. The earring fusion, like you said, it's much stronger then the...

    Solar Cell Construction

    Stella Said:Can anyone help me with some electronics?We Answered:A photodiode does basically the same thing as a semiconductor diode (that's what's used in a solar panel) but they are larger and can detect uv light. They're used in smoke detectors and remote controls. In a smoke detector, they read a uv light, once the light is broken (by smoke) they no longer see the UV and set the alarm off. In remotes, they receive the signal sent by the remote and turn it into electrical pulses that the device reads as commands. They're the small "eye" behind the red plastic...

    Solar Cell Cost

    Maxine Said:where can i buy solar cell that i can install in terrus,cost and life of it?We Answered:Solar panels require commercial "Deep Cycle" re-chargable battery's...

    Solar Cell Costs

    Tamara Said:what the costs lf the nano solar cell ( carbon + silicon + crystal)?We Answered:There are lots of types of nano solar cells currently being developed, the ingredients that you listed don't really make sense. What you need are semiconductive nanocrystals imbeded in some form of lightly conductive material. Do you mean Silicon Nanocrystals imbeded in graphite (or something like that)? Nano sized silicon particles will go for about $10 per gram and graphite is very cheap at around $.01 per gram. A more common nano solar cell would be silicon nanocrystals imbeded in a conductive plastic....

    Solar Cell Design

    Josephine Said:How would I make a circuit that recharges batteries?We Answered:Let's assume you are using batteries designated to be rechargable. While you can recharge ordinary drycells, it is not very effective. UNIVERSAL PRINCIPLE: In recharging a battery the universal principle is that you reverse the energy delivery process. When a battery powers a device it spends its energy doing so. When you recharge the reverse happens. HOW TO IMPLEMENT UNIVERSAL PRINCIPLE: Apply a slightly higher voltage to the battery than its terminal voltage (the voltage it is designed to operate at). NiCad single cells have a terminal voltage of 1.33 Volts. Lead-acid (automotive) batteries...

    Solar Cell Designs

    Caroline Said:Reg: solar cell harnessing?We Answered:forgetaboutit. MPPT typically needs a microprocessor in its implementation....

    Solar Cell Diagram

    Marc Said:what will be the size of a solar cell (3V)?We Answered:To achieve a specific voltage, you just need to add enough solar cells in series, about 1v per cell. The area of the cells will be determined by the required current for the application. Daniel Said:can any body give me steps on how photvoltaic solar cells?We Answered:The Photovoltaic solar cells do not convert the DC to AC. The output from the solar cells is DC power. The conversion is done with with an "inverter", which converts the DC to AC. I will attach some web...

    Solar Cell Diode

    Kathleen Said:Can i make a solar cell from many small signal diodes like in this picture?We Answered:Yes. Those are the same diodes I told you that you could use in your previous question.Arlene Said:Whats the difference between Solar cell and a photo diode?We Answered:The photodiode is like a switch: light it up and electricity can flow through it. But that electricity is supplied externally. A solar cell, using essentially the same photo-electric principle, is intended to generate electricity. So, one is used as a sensor. The other as an energy producer. Different application.Greg Said:I am trying to make a solar cell from...

    Solar Cell Dye

    Dorothy Said:how does the repsonse to light of solar cells based on dyes compare wit that of cells based on silicon????We Answered:One simple answer is that dye-based solar cells work on different ranges of wavelength than pure silicon-based cells. This makes more energy available to generate current. However, I do not have the information immediately available to give you an idea as to the relative efficiency of the two types. You may want to check with manufacturers of the solar cell types for more information....

    Solar Cell Efficiencies

    Glenn Said:What is your prediction for experimental solar cell efficiencies?We Answered:I suspect that experimental solar cell efficiencies will be / are less important to most of us than the ability to inexpensively mass-produce the solar cells. Unless you are dealing with space exploration, solar cell efficiencies are much less of a consideration than the installed cost per watt of solar cells. Recent advances in thin film technologies show promise in reducing solar cell costs per watt - even though they are likely to be less efficient than traditional silicon cell panels. Once the cost per watt...

    Solar Cell Efficiency

    Joel Said:A silicon solar cell array works at an efficiency of 17% in sunlight. If the solar array is exposed to an aver?We Answered:The solar array produces 600 watts. Since it is 17% efficient, this means it must be receiving 600/.17 watts of insolation, or 3529 watts. If the insolation is 196 watts per square meter, to get 3529 watts, you'd need 3529/196 or 18 square meters. So that's your answer.Raul Said:What is the Formula for calculating efficiency of a solar cell?We Answered:All efficiency formulas are: efficiency = output/input...

    Solar Cell Electricity

    Edwin Said:Explain how solar cell produces electricity.?We Answered:photovoltaics (PV) are the direct conversion of sunlight into electrical power. Let's take a look at what a solar PV system comprises of, then we'll explain how the solar panels work. Solar Power Generation Systems begin with the solar module. Solar modules capture solar energy and generate direct current (DC) electricity. Inverters (power conditioners) convert DC into AC (alternating current) to run many common appliances and equipment. Photovoltaic means electricity from light. A solar PV system uses the natural energy from daylight in the form of solar radiation to generate electricity. This is different technology to solar...

    Solar Cell Energy

    Norma Said:What equation do you use to derive the amount of energy produced from a solar cell?We Answered:It's the same as any other source of electric power: ? I*V dt Where I is the current and V is the voltage.  If voltage and current are constant, E = IV?t The particulars of I and V are the complicated parts.  The voltage output of a solar cell depends on the incident sunlight, the temperature of the cell AND the current being drawn from it.  Solar panels are rated at a particular temperature and are derated as that temperature rises. Ironically, you can get more peak...

    Solar Cell Equipment

    Franklin Said:The Hollywood Sign is not allowed to be lit at night. Would you support a ballot measure?We Answered:i agree with ryan. people do not live near eiffel tower. u know what, the hollywood sign does not need to be lit because it's already famous as it is. what difference does it make if it's lit? the number of tourists will still be the same. and yeah, don't waste energy. l.a.'s consuming too much already. im from l.a, i should know :)Caroline Said:Want to develop a solar powered emergency light?We Answered:Very interestingPhyllis Said:What are VAT octrai CST rate...

    Solar Cell Experiment

    Jeffrey Said:How do you draw line graphs?We Answered:y is your dependent and x is your independent. That's why we use y and f(x) as the same thing. y is a function of x, meaning the value of y is dependent on the input for x.Annie Said:How to measure sound? Fo science Fair experiment....?We Answered:A scope is the best choice. Or you can use a microphone,an ampilfier and one AC voltmeter connect to the speaker. Adjust the level of amplifier until you see voltage reading at the speaker when microphone receives AF signal. Keep this setting to compair a new...

    Solar Cell Experiments

    Michael Said:How to plan an experiment to find the internal resistance of a solar cell?We Answered:Measure the no-load voltage under some value of light. Under the same light, add a load and measure the drop. Measure the current or use a known value in ohms for the load. The internal resistance of the cell is the voltage drop across it divided by the current. It would be best to make a series of measurements and plot them. You will probably find that the internal resistance varies with light intensity and perhaps load....

    Solar Cell Film

    Darryl Said:Alternative energy?We Answered:The extra drag you would create by towing a windmill would use at least as much energy as you would use by connecting the alternator to the wheels of the trailer, or connecting a cable from your car battery. You might need to add a couple extra batteries to use the power while stationary. Using photovoltaics mounted on car, on trailer as roof, and possibly extras to be mounted on the sides would allow you to gain extra power. Extra problems with windmill. You can not exceed a blade width of 8 feet when the blade is facing the...

    Solar Cell For Home

    Marie Said:Can someone please help me? I don't get this math problem at all?We Answered:I like the units on the surface area. Anyway, What you should do (#1) is find the area of a single cell, and then multiply that by the amount of cells. That will get you a total area: (1.25*2.75)*65,000 = 223,437.5 square inches To get square feet, divide by (12 in/ft)^2, or 144 1,551.64931 square feet To do the second problem, let's say there is a unit of energy called Wicks (there isn't, by the way). 1 wick is defined to be the amount of energy that a 1% efficient 1.25 by...

    Solar Cell Glass

    Carla Said:Is there something that can replace conductive glass?We Answered:I think that your problem is that you're looking for a transparent conductor. The problem is that most conductors are high reflectors - they tend to be shiny. I think that you'll struggle to get anything that's relatively cheap. Folks in our labs use a material called Indium Tin Oxide (ITO) as a coating on glass to allow conduction, but I don't think that that's the sort of stuff you can just buy in a store. You could have a look.Beverly Said:how can i create a solar cell? i have tried...

    Solar Cell History

    Alfredo Said:Could man-generated EMFs (cell phone and wi-fi signals) be affecting the sun?We Answered:Personally I believe that there is a balance in creation that even the slightest variation to it can cause an (positive/negative) effect. The sun is a part of that balance and maybe, just maybe, because of all of the pollution we are creating in space it is effecting the activity of the sun. I can't put it into scientific terms but just suppose that as a result of the satellites, the radio waves, the micro waves, etc... hitting the sun, per square inch, is only...

    Solar Cell Homes

    Travis Said:math question??? please help me?We Answered:(1.25)(2.75)(65000)/144 in^2/ft^2 = 223437.5 in^2/144 in^2/ft.^2 = 1551.6 ft^2......answer Since they are inversely proportional 12/1551.6 = 18/x 12x = 27928.8 x = 2327.4 ft^2.......answerRamon Said:Math question??? please help me?We Answered:area in square inches: 65000(1.25)(2.75) = 223,437.5 area is square feet: 223437.5 / 144 = 1,551.65 (If you're wondering where the 144 came from, that's the number of square inches in a square foot. Multiply 12 by 12 to get 144). If the efficiency was only 12%, then you need to solve the following equation for x, which is the total area needed: .18(1551.65) = .12x x = (.18/.12)(1551.65) = 2327.475 which is 775.825 square feet...

    Solar Cell Images

    Bernice Said:Why Hydrogen when we have Electric?We Answered:------- You are so correct. The battery electric vehicle is the closest-to-reality alternative fuel technology we have, and this is where the research dolars belong, not in fuel cells (which are essentially less-efficient electric vehicles). * The clearest way to show this is with a couple of examples. GM's prototype fuel-cell car, the Equinox, has a 300-mile driving range - but the car weighs over 4,000 pounds! * Contrast this to the Tesla electric sports car - it weighs maybe half that much - and has a range of 250 miles. If we added 2,000 pounds of additional...

    Solar Cell In Pakistan

    Naomi Said:Am I a Conservative or a Liberal? Honest Question -- Please No Sarky Answers!?We Answered:Sorry, you will be considered suspect by either team, though the Liberals would probably make a friendlier community for you . You may have to be content wearing a Jersey of your own design. Except for the odd anti-teacher points, you seem to be fiercely patriotic traditionalist - Teddy Roosevelt type...

    Solar Cell India

    Brandy Said:If we don’t drill, will we have enough crude fuel to supply our transportation, military and industrial base?We Answered:The United States needs to be more self sufficient especially in light of how we are viewed by other nations. If Saudi Arabia decided to cut off our supply in favor of selling to India or China exclusively, it would cripple our country. This is disturbing. It will take a combination of several energy solutions to solve the problem. I am not opposed to rationing if it would help people realize the dire nature of our situation. Germany became entirely self-sufficient(energy...

    Solar Cell Industry

    Oscar Said:What is the climate change conspiracy?We Answered:Global warming is real,there is too much evidence.Just look at the Northwest passage that was sailed straight through in 2007.The rate the polar ice caps are melting.This is the twenty third consecutive year in a row of record global warmth.If people would do a little,tiny bit of research themselves they would realize it's real!Look at the sites below.Pictures say a thousand words....

    Solar Cell Inverters

    Travis Said:please correct me if i am wrong with my solar panel?We Answered:This is a little over my head, but here goes. If you want to install batteries, then I'm assuming you want to go totally off the power grid? Could be risky, but depends on how much you want to invest in your system. Some good tips here:Vickie Said:How to run a 5HP (1 or 3 phase) pump in a remote area by using a solar cell?We Answered:It would take a very, very large solar cell to run a 5 hp motor. If you don't use an inverter, you will...

    Solar Cell Is

    Ana Said:thanks guys! The resistor turned on the light but I am trying to use a solar cell which doesn't ?? help?We Answered:Let me see if I understand your circuit. You've got an NPN transistor with the emitter grounded. The positive terminal of a solar cell is connected to the base of the transistor, and the negative terminal of the solar cell is connected to ground. The cathode terminal of an LED is connected to the collector of the transistor through a 200 ohm resistor. The anode terminal of the LED is connected to +9 volts...

    Solar Cell Kits

    Clinton Said:Has NASA ever drafted a lost-astronaut space-retrieval kit?We Answered:Well, ..., to my knowledge nothing has been implemented but I distinctly recall in the 1960's a contingency plan. Where an astronaut could reenter earth's atmosphere tethered by a high altitude helium balloon and then parachute to earth once he/she had achieved a safe altitude. The feasibility of such a maneuver was demonstrated by Joe Kittinger on August 16, 1960. Thus, the feasibility of a High Altitude Low Orbital (HALO) jump was proven well before we saw it graphically portrayed in the last Star Trek Movie. However, despite...

    Solar Cell Light

    Bertha Said:Is a photo cell & and light meter and a solar cell the same?We Answered:No. A photocell is a light dependent resistor affected by the introduction of light. Cadmium sulfide is an example. Light striking the LDR causes it to conduct more electricity. A light meter is an apparatus which uses a photocell to give you light intensity readouts. A solar cell absorbs light and converts it into electricity. It is better known as a photo-voltaic cell.Caroline Said:How do you attach a solar cell to a light bulb?We Answered:Well, you're going to need a battery. This is probably...

    Solar Cell Make

    Ralph Said:What equipment is needed to make a solar cell?We Answered:If you search the internet, you'll certainly find ways to make very low power solar cells from common materials, but I'll assume that you want to make one with significant output. If you can somehow obtain solar grade wafers (or maybe you could just use the back of a regular semiconductor wafer if you can get one that's clean), then all you would need is a screen printer, the right chemicals, and a diffusion furnace. If you're at a university, and they have a semiconductor process lab, they may have...

    Solar Cell Making

    Edgar Said:what possible modifications do you think could be made too a solar cell that may make it better?We Answered:The most effective is to keep the cell pointed at the sun with a tracker unit. You can also reflect additional light on to the cell (beaware of over heating).Vincent Said:what factor makes solar cell very expensive?We Answered:Solar cells are made primarily of polysilica, which requires a great deal of expensive refinement, and our capacity to produce it is outweighed by the demand. This will be helped somewhat by the economy of scale as greater mass-production becomes available. There's also...

    Solar Cell Manufacture

    Raymond Said:how does solar cell manufacturing process?We Answered:Most solar cells are grown on silicon disks in much the same way micro-circuit chips are grown. It is a very sophisticated process with many working parameters. An alternative process involves building up thin layers through a printing process on a metallic substrate and sealing them with a thin film. It is far too much information to discuss here. For more information, run an internet search on "manufacture of photovoltaic cells."Tim Said:Do anybody knows how to manufacture the Photovoltic Cell to generate the Power from Solar Light?We Answered:There are many websites that will show you...

    Solar Cell Manufacturing

    Seth Said:aren't many energy efficient solutions an eye wash:?We Answered:I think your information on these 2 topics are wrong as rightly pointed out. But you have a point here. Some technologies may end up in a different way than the original idea. Example is again the solar cells. Some years ago it was considered as not so economical since it was costing a lot to make one. But yet at that time the publicity given to it made some people go for it and get burned. But as days went by it has proved what is the worth of it....

    Solar Cell Market

    Ashley Said:Reg: Circuit to charge the capacitor from solar cell?We Answered:It doesn't matter how many micro-farads the capacitor has, apparently the time it takes to charge the cap is not so important to you.... The "circuit" is like that: Connect the "plus" of the solar panel; to the anode of a universal diode, like 1N4001 Connect the Cathode of that diode to the "plus" of the capacitor. Connect the "minus" of the solar panel to the "minus" of the capacitor. Finished. Since the diode will "steal" about 0.7 volt, your solar cell should be a 4.5 Volt type....

    Solar Cell Material

    Tanya Said:ware can i get solar cell raw material in chennai?We Answered:exact locations is this address smart energy trade #1 post office street , behind GPO near beach station bus stop broadway chennai 1 42145861...

    Solar Cell Materials

    Lance Said:can't electric cars be self charging by having a wind turbine emblem on the hood and solar cell material roof?We Answered:Not really. Putting a wind turbine on the car just increases the drag and makes it less aerodynamic. Putting solar panels on the roof helps a little, but they're not efficient enough to provide much charge. For example, Toyota has optional solar panels on the 2010 Prius, but they're just used to power the air conditioning and other systems that require little power. They don't provide enough power to charge the car....

    Solar Cell Measurement

    Deanna Said:Electrical circuit.............helppppppppppppppppp…We Answered:(a) Ohms law answers this. i = V/R = 0.36 / 10 = 0.036 A or 36 ma (b) Well, here the power is 0.36 v * 0.036 A = 0.01296 W or about 13 mW If you have the exact I-V curve you can draw contours of constant power on it (i*v=constant) for various values of the constant and find the one that just touches the I-V curve. this will be the operating point that gives the most power. You could also try to model the solar cell as a Thevenin equivalent The Thevenin resistance would be 0.44 V...

    Solar Cell Model

    Jo Said:What would it take to determine if a particular business model will succeed in a particular location?We Answered:hey turingschild, I think you have a good idea there. I am also interested in solar energy. I just saw a film called "A Crude Awakening: The Oil Crash" and agree that oil will soon run out. My interest in energy is purely investment oriented. energy stocks make up the greatest portion of my portfolio. And year-over-year, the energy stocks have outperformed all of my other holdings (including real estate stocks and physical real estate). In my profession, I...

    Solar Cell Module

    Kay Said:I have a science question. Look at add details for ?We Answered:3v and 0.1amps = 0.3 watts (W = VA) So, for 60 watts, you'd need 60/0.3 = 200 solar cell modules.Yvonne Said:can someone help with this physics question?We Answered:3V * 0.1amp = 0.3 watts 5 cm * 8 cm = 40 cm^2 0.3 watts / 40 cm^2 = 0.0075 watts/cm^2 So if we want 40 watts, we need 40 / 0.0075 =~ 5333 cm^2Dean Said:Does anyone knows where I can find free on-line books on photovoltaics?We Answered:http://books.google.com/books?hl=en&lr=&…...

    Solar Cell Modules

    Joann Said:Solar Cell From Radio shack question?We Answered:Those could be open circuit voltage and short circuit current, or they could be the voltage developed when that current is being drawn, or, third possibility, the maximum power point, that voltage with that current load. Unfortunately Radio Shack rarely provides datasheets on the parts they sell, so it could be anything. ....

    Solar Cell New

    Thelma Said:If I put six 0.5 volt solar cells together in a series, can I power a 3 volt (or less) DC motor?We Answered:yes...Hooking the batteries in series will give you a voltage equal to the total voltage of all the batteries, but the amp hours and current carrying capacity of only one Hooking batteries in parallel will give you the same voltage as a single battery, but with an amp hour and current carrying capacity equal to the sum of the capacities of all the batteries.Derrick Said:1 kilowatt system how much kwh per year should it produce? Anyone got figures?We...

    Solar Cell Output

    Derek Said:What are the factors that affect solar cell output?We Answered:That's one. Angle of incidence, temperature, quantum efficiency, age, cover material, type of cell (crystalline, amorphus, multijunction ...)...

    Solar Cell Panel

    Leona Said:How many or what kind of solar panel do I need to charge a cell phone?We Answered:Cell phone and "small radio" are two different things. Actually, you don't want to charge either one of those things, you want to charge their batteries. Charging modern batteries is somewhat of a black art. If you want to charge the battery in your cell phone, I would strongly reccomend that you use the charger that came with it. If it came with a "car charger," great! You can use a nominal "12V" solar array to power the charger, and...

    Solar Cell Panels

    Randy Said:Have there been hybrid solar collectors?We Answered:They have combo solar cells/collectors. The top portion is the photovoltaic, and below is a collector filled with water/antifreeze that collects heat and distributes it to the home. With government subsidies, and depending on where you live, you could break even on PV panels in 5-7 years, but others might take 20 years. In 20 years, I hope PV panels will be more more efficient.Kelly Said:Why don't cell phones have solar panels? They've been on calculators more than 20 years.?We Answered:Because the amount of energy a calculator requires is minuscule to that of...

    Solar Cell Performance

    Tracy Said:Tufts supplement, NEED HELP! 2?We Answered:its too long - repetitive. add new ideas...

    Solar Cell Phone Battery Charger

    Kathryn Said:Cost of living off the grid?We Answered:Many people live off-grid quite comfortably. The trick is limiting the items that make heat or cold; heaters, fridge/freezer, air conditioning. Those use a lot of power. Use solar water heating with an on-demand gas heater for hot water, buy an ultra-efficient fridge, build the house to have a very tight envelope so the heating/cooling loads are low, and use gas as backup heat. Use a solar clothes drier, also known as a clothes line. I don't see A/C on your list, that's good. Here's an example of an...

    Solar Cell Phone Battery

    Nancy Said:how can i use a solar panel from a solar light to charge a 7.2 Volt cell phone battery?We Answered: By buying a bunch of them or using a pumping circuit to raise the voltage....

    Solar Cell Phone Charger

    Tamara Said:I have decided to buy a cell phone solar charger, any suggestion to choose a good and reasonable priced one??We Answered:I think buy a solar charger is a good idea which could make contribution to environment protect, reduce waste ,save our electricity bill and have 24 hours access to cell phone without worry about our cell phone battery is out of power. I do have keen interest on solar charger. The following article is about solar charger for mobile phone, hope you could get some suggestion from it. And merry Christmas in advance. http://www.squidoo.com/solar-charger-for…...

    Solar Cell Phone Chargers

    Lance Said:Going to africa and I need a solar charger that will charge camera's lithium battery, Ipod and cell phone?We Answered:First of all what country in Africa are you going to? . Most of the countries have power outlets now and probably only need a universal converter. However if your going to the tribal areas here is were you can buy a solar charger (http://www.siliconsolar.com/) The websight is designed a little slopy but it has everything you need. Although the tribal areas may sometimes have generator power stations....

    Solar Cell Phone

    Carla Said:Where can u get a solar cell phone charger?We Answered:type "solar cell phone charger" in your search bar or your address bar [google or yahoo] Lots of sites selling the charger will come up. Click on them.Steve Said:Which is the best solar cell phone charger that stores charge so you can plug in phone at night? Reviews?We Answered:http://www.ecogeekliving.com/universalso…Mario Said:i have a question about those solar cell phone chargers?We Answered:If, by "larger", you mean a battery of the same voltage but with more capacity, then it should probably work fine. If you are talking about using a...

    Solar Cell Phones

    Dennis Said:How many years away are solar powered cell phones and lap tops?We Answered:i read an article in a science magazine recently and there was a group that claimed that it had worked out how to improve the efficiency of solar panels such that they would become a more viable option for laptops. the batteries available currently are quite sufficient in terms of capacity and time required for charging, one issue i can see coming up is that the batteries don't like heat but a solar panel is bound to get hot... in terms of years away, i would say about...

    Solar Cell Photovoltaic

    Louise Said:does anyone know what's the answers to this question is? thanks?We Answered: Here you go, you can figure it out yourself http://www.powerstream.com/VA-Watts.htm...

    Solar Cell Picture

    Dorothy Said:Theists: Do you realize how insignificant we are?We Answered:Hmmm.... I am troubled by the 'bible thumpers' who argue that the universe was created in it's current form, 6000 years ago, as it is. I feel it handicaps their children from ever being able to pursue careers in science. This said, when I contemplate the grandeur of the universe, including what I don't know about it - I tend to be in awe. I do perceive a greater entity than myself - one that is connected at a quantum level across time, space and dimensionality (seriously - string theory and stuff!). I'm so...

    Solar Cell Power

    Amy Said:Using a volt meter, how do I measure the amount of power from a solar cell?We Answered:First, the cell needs to be actually producing power. It needs to be connected to something that uses that power. Then, you measure the voltage across the cell's terminals, call the value "V" in volts. Then measure the current from the cell, call the value "I", in amperes. Multiply the two numbers, that is the power in watts. Example: 5 volts times 1 amp = 5 watts.Albert Said:Who first created the solar power cell? And how is it created?We...

    Solar Cell Price

    Marsha Said:What kind of solar panels are needed to make a ipod/cell charger?We Answered:3 volts 500mA panel....

    Solar Cell Prices

    Angela Said:Today the Post Office is raising it's prices to reinvest the profits into itself, Do you agree with this?We Answered:We do seem to give tax breaks to the rich or well off business at a rate far greater than the ordinary Joe whose every dollar is taxable and reported via his W-2. No wiggle room there. With so many people paying their bills online its not surprising they have to raise their rates, their volume has to have gone down, but if it gets too high, even fewer people will use them. Like any business, it needs to keep...

    Solar Cell Principle

    Ramona Said:Chairs, medical advances, aircraft,and solar cells are examples of scientific principles that have been applie?We Answered:They are Applied Technology.Randall Said:Is there any way to make a car with a solar cell and an alternator to recharge the battery when moving?We Answered:yes of course what you are asking is can we make perpetual motion? yes we should it is just that it has not been invented or discovered how yet! Guru...

    Solar Cell Process

    Byron Said:solar cell processing regarding screen printing process?We Answered:Solar cells are manufactured from thin p-doped polycrystalline silicon wafers. They are produced by casting large ingots of high purity silicon. The ingots are wire-cut into wafers. The wire-cutting process generates damages on the surface of the wafers. This damage is removed by etching in a strong alkaline solution. Typically 40-50 microns are etched away creating a flat surface. To minimize reflection from the flat surface, the wafers are textured. This means creating a roughened surface so that incident light will have a larger probability of being adsorbed into the solar cell....

    Solar Cell Producer

    Anita Said:Some help with my Biology study guide??? 10 points for best question?We Answered:http://www.scribd.com/doc/13662110/Photo-09Lawrence Said:Can someone Please help me with this i HATE BIO!!?We Answered:im not going to do your homeowork for you but ill give you some... 1- population density 5- weather 7- zebra eating grass 9- carbon dioxide air pollution; global warming increasing the sea levels. 12- overconsumption of resources 17- differentiation. 19- use oxygen to make usable energy you can do the rest; thats how you learn lol ?Kyle Said:science questions plz help!?We Answered:In the amount of time it took you to type that you could have looked up the answers yourself....

    Solar Cell Producers

    Robin Said:need help on some biology questions.?We Answered:1. c gametes contain one half the original chromosome # 2. b Look up Miller and Urey's experiment 3. true plants were not dependent on animal life at the beginning. 4. false 10% of energy is transfered to the next level. 5. d both organisms benefited. 6. c acid rain directly effects fishKathleen Said:living environment regents?We Answered:3 is the only answer where energy is being released for use. in 1 energy is being stored. 2) If that actually occurs, (I don't know that it...

    Solar Cell Production

    Jerry Said:Silicon???We Answered:its insulation so that each individual cell doesnt touch eachother and short out the electrical componentsKenneth Said:want to help in the draft feasibility study?We Answered:Remember to cover these points: 1. Management team and their qualifications and experience 2. Process of production of Solar cells 3. Your target market, competitors and your Unique Market Proposition (why should people buy your product) 4. What kind of Capital Assets you would require to start the project with details of quantity and value 5. How do you plan to fund the project 6. 5 yrs projected Profit and loss account, Balance sheet and cash flows showing how healthy...

    Solar Cell Project

    Mario Said:Type and size of capacitor needed for a solar project?We Answered:I don't know what your budget is or what your current requirement is. The cheapest large- capacitance capacitor is the electrolytic type, but it is usually (charge) leaky. Tantalums are not as large capacitance and are more expensive, but are not nearly as leaky. You'll have to compare prices to see if it's cheaper to buy one big capacitor or build a bank of smaller ones. If money is no object, then you might check out the new super (or ultra) capacitor which can be used instead of a battery...

    Solar Cell Projects

    Ricky Said:Where can I find silicon strip for a solar cell project.? Can you suggest parts from old appliance ?We Answered:How big is your project? Solar powered calculators yield small ones. Solar powered walkway lights yield somewhat larger ones. DonEugene Said:solar cell project for 7th grader. can anyone give me adetailed project idea for using asolar?We Answered:http://www.solarworld.com/Educational.ht… www.solarworld.com They have lots of solar stuff, and if you did a search "education + solar", you would probably do better than the YAHOO answers.Alan Said:do anyone know any good solar-cell science fair projects?We Answered:Good choice of subject! Quite a bit of ideas can be found here, you may...

    Solar Cell Purchase

    Tracey Said:Alternative Camping Heater Source Other Than Propane?We Answered:Ceramic Heater... http://search.store.yahoo.net/cgi-bin/ns… Different heaters... http://www.hiking-gear-and-equipment-use… Hope it helpsEmily Said:Which topic would you choose?We Answered:6 sounds good. It's can give you a lot of information about the decrease in the carbon foot print of each individual. Also, you already have 5, so ask the person who installed the panels about it, and they can help you. 13 also sounds good because it has a lot you can read about and it can make a good essay topic because of all the information out there....

    Solar Cell Research

    Stacey Said:the research of inoganic solar cell and oganic solar cell could be found in which department in university?We Answered:Definitely Chemical Engineering. E-mail some professors with your question, sounds like you're a graduate student, they should reply. Occasionally the university would not have it posted to the Web site, but there would be a professor working in this exact field.Mike Said:Does anyone know what graduate school research on Feul Cell or Solar Cell?We Answered:I think Rose Hulman in Terre Haute Indiana has a good program. One year students built solar cars and drove them through town. Rose Hulman is an engineering...

    Solar Cell Review

    Alfred Said:Review of Literature?We Answered:Try the library. If you have access to a college or someone who is in college, you could use the college's library search to find journal articles. I'm in grad school at UF in FL and I can download articles from almost any journal from home.Roberto Said:Could hydrogen combustion work well in a rotary engine?We Answered:Considering your head question only, The Wankel engine have offered attractive advantages in balance and high specific output. Unfortunately, this engine is dead as a result of its unfavorable combustion chamber and nothing can be done about it. Using...

    Solar Cell Silicon

    Bobbie Said:how can we construct a silicon solar cell ?We Answered:See http://en.wikipedia.org/wiki/Solar_cell Brian Said:Does humidity affect a solar cell?We Answered:To the extent that cloudy weather and rain cuts down the amount of sunlight falling on a cell, there is an effect. Or to the extent that humidity often comes with heat, there is an effect. Temperature affects a solar cell's output. A naked solar cell would be subject to corrosion at the contacts if exposed to humidity. All solar panels for serious residential installations are sealed against water, and humidity has no effect on them.Jackie Said:where can you buy a silicon...

    Solar Cell Size

    Lauren Said:what size solar cell for 1500 watt heater?We Answered:About 30 feet X 30 feet under full power of sun shine....

    Solar Cell Small

    Carol Said:can someone tell me how to hook up a calculator solar cell to a small engine i need step-by step walk-through?We Answered:YES IT CAN BE DONE BUT YOU ARE MISSING A PIECE OF THE CIRCUIT.YOU WILL NEED A STORAGE MEDIUM, A SMALL RECHARGABLE BATTERY I WOULD USE A VERY SMALL MOTOR THAT POWERS A BATTERY POWERED CLOCK THEY USE A SINGLE AA OR AAA BATTERY 1 AA OR AAA BATTERY IS 1.5 VOLTS I THINK THAT SOME OF THE SOLAR POWERED CALCULATORS MAKE APPROX 0.5 VOLTS OR A HALF VOLT DC I WOULD TEST THE POWER OUTPUT OF YOUR...

    Solar Cell Solar Panel

    Pearl Said:how do i install solar cell?We Answered:A single solar cell? you won't get much out of that. It should have wires attached already, if not, look for two solder pads on it. The components? depends on what you want to do. the solar cell doesn't need any components to operate, just sunlight. A single cell will put out about 1/2 volt in bright sun. .Nina Said:Can doubling the size of a solar cell double the output?We Answered:For roof size check out the David Darling referenced link below. It provides a square foot of roof space required for the amount...

    Solar Cell Structure

    Michelle Said:How are super molecular structure useful?We Answered:Bit of a vague question but... For drug development we need to be able to see the structures of proteins which are fairly large. We need to be able to determine how the drugs interact and where so we can improve them. For solar cells, the various layers and crystal structures of the compounds used need to be viewed so we can improve their efficiency.Stanley Said:Is it possible to make my engineering thesis without experiment?We Answered:molecular structure of solar cell panel is like saying molecular structure of SILICON. Silicon for solar cells does not...

    Solar Cell System

    Herman Said:Could an Atom be a tiny Solar System?We Answered:With an open mind all is possible....

    Solar Cell Systems

    Greg Said:How do I optimize solar cell output?We Answered:I think you should hire someone to do this for you. You actually connect them in series parallel, usually configured to output 12 or 24 or 48 volts at the maximum current possible with the size of the array. The more you connect together, the higher voltage you should configure them for. Higher voltage reduces losses due to IR losses in the wires. Then you connect them to a charge controller which connects to a set of batteries, and optimizes the voltage and current to maximize the charge on the batteries. Then an...

    Solar Cell Technologies

    Jamie Said:B, Ar, Ga, In solar powered cell?We Answered:Yeah, I saw that episode too. Right after, I tried it, except I didn't have gallium so I used urine. Works like a charm....

    Solar Cell Technology

    Anita Said:Solarcell Technology?We Answered:There have been numerous models of solar cell powered vehicles -- and even an airplane! The designers in all cases minimized weight, got a large array of solar cells, and off they went. Try searching in Yahoo or Google or whatever for "solar cell car", "solar cell bicycle", and "solar cell airplane"Luis Said:solar tech???We Answered:A helluva lot of very intelligent, including many downright brilliant people have been working on that for over 50 years. Efficiency of solar cells has greatly improved since then, from about 10% back then to about 30% now. And the work...

    Solar Cell Temperature

    Tracy Said:How Much Current is produced by a SINGLE SOLAR CELL AT STANDARD?We Answered:It is different for each type of cell... Here is one: This calibrated silicon solar cell is perfect for PV system installers, to test instruments or in the classroom. The factory has tested this 0.5volt, 2 x 4 cm cell in 1 sun conditions and written the output on the rear of the #2 size plastic case (2 1/4" x 1 3/8" for reference).Since a silicon cell is used, the current output is almost linear to the amount of light. Example: 1 sun = 250ma / 50% sun =...

    Solar Cell Testing

    Mabel Said:Why doesn't my Solar Cell from my Calculator work?We Answered:It is really easy to burn out LEDs by letting too much current through, I have definitely blown out a few without even noticing. You need to have a current limiting resistor in the circuit if you use the battery, without the battery I doubt there is enough current to turn the LED on. So if you have another LED, I would recommend testing with that. Second possibility I could see is the polarity of the LED, it will only work with currrent in the right direction. Look it up and...

    Solar Cell Theory

    Philip Said:Creationists: Are You Aware of The Meaning of the Word "Theory" in a Scientific Context?We Answered:Creationists don't think about things. When they say something is a theory, and hence not supported by evidence, here's what they have to reject: Evolution Quantum Field Theory Quantum Mechanics General and Special Theory of Relativity Big Bang Theory and much more. If they had actually bothered to think about what they blathered, they would realize they claiming something is not supported by evidence because it is a theory, means claiming all of science has no evidence behind it.Steven Said:Aren’t those who refuse to accept the Scientific Theory Of Evolution...

    Solar Cell Types

    Mike Said:types of light gathered by solar cell?We Answered:It depends on the material that the solar cell is made of. The way that a solar cell works (well, if you simplify it a lot) is that the incoming light makes electrons jump from a low energy level into a high energy level across an energy barrier called the band gap. The solar cell can respond to any light that has more energy per photon than the material's band gap....

    Solar Cell Uk

    Gail Said:Can you help me with my eco-friendly automotive theory?We Answered:Solar panels make energy so slowly that your idea won't work well. I believe you need to get into "the numbers" yourself. You don't need to be a licensed engineer. "Build your own Electric Vehicle", a book by Seth Leitman and Bob Brant, 2009, is very readable even as it goes through many of the numbers you need. It doesn't cover solar well so you'll have to find a simple source describing how much power you're really going to get. What I found, when I looked at the idea of solar...

    Solar Cell Use

    Leroy Said:Help! I want to make my own little solar bot. I dont have a solar cell to use for power.?We Answered:the photcell would be ideal for guiding the bot to light, but not for producing power for the battery as it does not actually produce power, it just switches power when it sees light. If you have rechargable battery in the bot, then I would say just charge it as usual. If you really need to use solar, then you will need to buy a proper solar cell, but even still using it to charge the battery will not be...

    Solar Cell Uses

    Isaac Said:can solar cell be used for power supply for a big city ?We Answered:Yes, they could, if you had enough of them, and the sun was shinning, brightly, not during the night. There are already existing solar cell "farms' where many kilo-watts of electricity are being produced in the South Wes desertt, and power is transmitted to large city near them (sorry, don't know which, now). Problem is the initial investment, they are one of the more costly alternative energy systems. But, costs have gone down in recent years. Windpower may be a better alternative as large windmills could be installed...

    Solar Cell Voltage

    Herbert Said:How much current and voltage is produced on a solar cell of calculator 3cm*1cm size to a 200ohm resistor?We Answered:If it's a single cell, it will output about 0.5 volts in bright sunlight. But there may be several connected in series for 1 or 1.5 volts. Current is unknown, but not more than 1 mA .Jennie Said:how can i set up a simple circuit to find the current and voltage output of a solar cell?We Answered:get a high wattage resistor wire it across the cell measure the voltage (V) across the resistor and the current (I) through the resistor power output =...

    Solar Cell Wafers

    Barry Said:Which company is making n-type solar wafer/cells?We Answered:Here's some information regarding companies doing research on n-type solar cells: http://www.eetasia.com/ART_8800574437_76… http://jagadees.wordpress.com/2010/03/06… Hope these help!Melanie Said:How to make silicon from silicate or beach sand?We Answered:you put it in a atom bomb the n fly to mars!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!… !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!… !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!… !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!…...

    Solar Cell Work

    Gloria Said:how does solar cell and photocell work?We Answered:sunlight knocks electrons off the silicon and goes down the wires to give you electricity...

    Solar Cell Working

    Rita Said:what are the components of a solar cell ? and principle behind the working?We Answered:No the light bumps the electrons into higher energy levels. Search [solar cell] in wikipedia.com and you will find http://en.wikipedia.org/wiki/Solar_cell#…...

    Solar Cells 6x6

    Zachary Said:What's the rating in watts per lumen that a solar cell produces?We Answered:the answer can vary greatly depending on the type of cell that you are looking for. High efficiency cells can have outputs more than 10 times that of cheap hobby cells. The easiest way to find the specs is the website of your supplier, they should quote full efficiencies of all of their products...

    Solar Cells And Solar Panels

    Holly Said:Where can I find good quality 3" X 6" pre tabbed solar cells?We Answered:You can find them for $2 each on ebay. If you plan on building a solar panel that generates electricity, you will need to know how to solder, and also some basic knowledge about electricity. Also, here is a detailed video guide that shows you how to build a solar panel......

    Solar Cells Applications

    Jordan Said:Seriously, are there really any practical applications for solar panel generated electricity?We Answered:Being such a practical person you are unlikely to go by ship when you could fly. Flying you are unlikely to survive a landing at sea. Although someone in a life raft in the middle of the ocean may curse the sun but with solar distillation devices now fairly standard they might survive longer than any batteries would land. You might use an 18 wheeler to kill flys but a flyswatter is probably a more efficient tool. Likewise solar thermal panels are far...

    Solar Cells Australia

    Lorraine Said:Another General Knowledge Test - Do Not Use a Search Engine or a Book - use your brain!?We Answered:1. Systematic killing of large groups of people is generally frowned upon. Lack of action by the UN is even more disconcerting. 2.Antonin Scalia, Ruth Bader Ginsberg, Justice Roberts, Justice Thomas, and I could picture him but couldn't remember Justice Alito's name without looking him up. The rest of the Justices I wouldn't have got. 3. Heh. I do good to remember the names of people I meet in person. Paul Mcartney was one. 4. Name the 20th century US Presidents,...

    Solar Cells Buy

    Felicia Said:where can i buy solar cells in indore?We Answered:http://www.clickindia.com/detail.php?id=311404 have a look at it & search further, if u get ne info do share it wid me.Maurice Said:where can i buy solar cells here in u.a.e.?We Answered:http://www.blueviewsolar.com will send them to you.please contact us for all information.thanks tommy...

    Solar Cells Canada

    Teresa Said:The Southern Cross from Toronto?We Answered:?Rosemary Said:Alternative Camping Heater Source Other Than Propane?We Answered:Coleman used to make a Coleman fueled catalytic heater. That and propane are very dangerous because they deplete oxygen and create carbon monoxide. You need to have a lot of ventilation in you tent to keep from not ever waking up again. I have a small wood burning stove that has a stovepipe through the roof of the tent. Even with the tent door or window open it'll keep you warm. Depends on how much you want to carry or spend. It would be unrealistic...

    Solar Cells China

    Anne Said:China makes windturbines & solar cells for 30% less than the US & Europe. Will 0bama keep sending our jobs to?We Answered:blame private business for going to China for cheap labor instead of blaming Obama Based upon your question, I take it you are not one the people who defend corporations and their "shareholder profits" defense. Good for you. I would also assume that you are fully behind Obama's efforts to increase tariffs on certain Chinese products and thereby discourage the purchase of goods made with cheap labor and/or outsourcing of labor to China....

    Solar Cells Construction

    Amber Said:BEAM bot construction?We Answered:3v solar cell is not going to work the same as a .55v solar cell for sure. RadioShack is not a good place for your robotic project. Solarbotics does. You can buy there anything you need for your BEAM bot. Solarbotics Internet store is easy to use and reliable. http://www.solarbotics.comLewis Said:Can anyone help me with some electronics?We Answered:A large area photo-diode is one with about 1 cm^2 area. They are often used for light measurement, and have a clearly defined area like 1cm^2 so it relates more directly to the measurement. Some I have seen have a built in...

    Solar Cells Cost

    Adrian Said:How many plates of solar cells will be required to generate 220 volts and how much will it cost?We Answered:The current you need is whats important. You could squeeze 220 volts out of a small solar cell with voltage triplers but its not going to produce enough current to do anything. Study up on the relationships between voltage, current, resistance, and wattage...

    Solar Cells Devices

    Yvonne Said:can we store the electricity produced by solar cells using some device?We Answered:It's unfortunate that electricity is so difficult to store, batteries are notoriousy inefficient as are mechanical methods such as flywheels and compressed air, all of which has been used to load shift the grid to take advantage of off peak generation capacity. However, the most stable way to store energy is chemically and Sandia Labs did exactly that by synthesizing liquid hydrocarbons from CO2 and H2O with the use of a solar furnace. Even batteries are chemical energy storage devices, just inefficient ones. It's...

    Solar Cells Efficiency

    Sonia Said:How do you calculate the efficiency of solar cells?We Answered:Energy efficiency is always power out divided by power in. In the case of solar cells, it is the watts of electrical energy produced by the cells divided by the watts of electromagnetic energy striking the solar panels.Gladys Said:why does temperature decrease efficiency of solar cells?We Answered:Overall resistivity of the entire circuit rises with internal temperature, despite the fact that the semiconductors in the circuit become more conductive with temperature rise.Marian Said:How can we measure efficiency of solar cells?We Answered:You need to know the amount of energy available to the surface...

    Solar Cells Electricity

    Mary Said:How solar cells generate electricity?We Answered:Solar (photovoltaic) cells use a semiconductor junction to allow photons to excite metallic atoms into giving off a flow of electrons. Solar radiation comes in the form of photons, and a flow of electrons is called an electric current. For lots more information, including pictures and diagrams that will help you understand, run an internet search on "photovoltaic effect."Douglas Said:How the electricity produced by solar cells.?We Answered:when light falls on solar cell, photons in light interact with the silicon chips in solar cells and release an electron. electrons have negative charge. these electrons are...

    Solar Cells Energy

    Paul Said:what is the study of solar cells and windmill produced energy?We Answered:What do you want to find out about them? If you want to know how to build them, you would have to be an engineer, If you want to know their impact on the economy, you would have to be an economist. If you want to know how they impact on the environment, you would have to be an ecologist.Maureen Said:Energy to create Solar Cells?We Answered:It depends a little on what sort of cell and where it is used. The main problem is that the silicon needs to be EXCEEDINGLY pure...

    Solar Cells For Home

    Christopher Said:how is this problem solved? I need help.?We Answered:it's going to depend on the size of the solar panels and thier rated output.you could always call a solar panel installer and ask them for info on what they install and how much output they would suggest.Brittany Said:Energy Conversions!!!!!!!!!!!!!!?We Answered:car: chemical to mechanical furnace: chemical to heat generator: chemical to electric (really, chemical to mechanical to electric) lamp: electric to light & electric to heat solar cell: light to electric greenhouse: light to heat...

    Solar Cells For The Home

    Andrew Said:help please, water heating.?We Answered:I put one on my roof just before last winter (I live in New England). During the winter months, it worked pretty good. Warm water was circulating through the pipes nicely. During the spring, it really kicked in and by the summer, the pipes were to hot to touch. During the summer, my furnace almost never kicked on. The furnace came on a few times during stretches of 3-4 days with no sun. So far, I have been able to calculate that I have at least saved about a 1/2 tank of heating oil. Considering...

    Solar Cells History

    Dustin Said:Conservative christians can you put this in order from smallest to largest?We Answered:Nope it's not in their bible...

    Solar Cells Home

    Mary Said:How does this solar charger work?We Answered:What is the input impedance of your voltmeter? You might be dropping some voltage while measuring it. Try putting the solar cell to an op-amp circuit with a gain of 1, to prevent loading during measurement.Henry Said:Is SolarCity a trustworthy company?We Answered:interesting business model. it's probably legit. what happens is, if i'm an industrial electricity generator, the distributer will pay me $0.02 per kw. if i'm a homeowner, they have to pay me $0.04 per kw. so if i want to increase my payment, i make the deal that you describe. i see 2 problems. 1. what happens...

    Solar Cells Homemade

    Joshua Said:how can you make homemade solar cells?We Answered:http://www.fuellesspower.com/26_Solar_ce… http://www.instructables.com/id/My-home-…Tammy Said:how can you make homemade solar cells?We Answered:Why did you post this twice?...

    Solar Cells How They Work

    Lucy Said:solar cells?We Answered:when sunlight falls on solar cells,the solar energy is converted into electrical energy by the semiconductor material used in them.Brenda Said:how does solar cells of communication satellite works?We Answered:Short circuiting can occur at cell interconnections. This is a common failure mode for thin film cells since top and rear contacts are close together and risk being shorted together by pin-holes or regions of damaged cell material....

    Solar Cells In Space

    Roy Said:Going to be graduating as an electrical engineer, interested in alternative energy or space, but overwhelmed.?We Answered:If the company you're working for offers enough of what you want to do that you're generally happy there, I'd recommend sticking with it for up to about five years. Get some work history under your belt and a Master's degree to boot. If after that time you still want to pursue another career, start looking. Employed is the much preferred position to be job hunting from - it tells a prospective employer that *somebody* was willing to hire you (so you...

    Solar Cells India

    Floyd Said:Where loose Solar Cells are available in India?We Answered:Calcutta.Rosemary Said:I want to start a solar cell testing centre in india, how can i proceed ?We Answered:If you do this without much knowledge of the industry (your own self assessment) one of your biggest problems will be to get customers. Very likely you will "die" from lack of cash flow! The classical way to handle this is to enter the (in your case) solar cell industry either in manufacturing or with a major long term user and work on most if not all of - research, technical design, manufacturing, testing...

    Solar Cells Kits

    Patricia Said:Catalyst for Fuel cell car?We Answered:Short answer: Platinum catalyst is a very common catalyst in Hydrogen Fuel Cells. It can be found in catalytic converters along with palladium and nickel, which also work. The water must be electrolyzed into hydrogen and oxygen first before being presented to the catalyst. Catalyst powder affixed to carbon sheets is a good idea because it allows for conductivity of the electrons through the electrodes, which out to be set touching the carbon paper on the catalyst side. Item no. 7100004 on sale at www.fuelcellstore.com looks to be an...

    Solar Cells Made

    Geraldine Said:how are the solar cell made?We Answered:I generally find that Wikipedia is a good source of information on most subjects, and in the case of photovoltaics it has what looks like a good site for general information, with lots of links to more detailed info... Hope this helps... (The relevant url is en.wikipedia.org/wiki/solar_cell)Jenny Said:what are solar cells made of?We Answered:Materials you will need… A sheet of copper flashing from the hardware store. This normally costs about $5.00 per square foot. We will need about half a square foot. Two alligator clip leads. A sensitive micro-ammeter that can read...

    Solar Cells Manufacture

    Ruby Said:Serious Question: How many Watt hours are required to manufacture a solar cell?We Answered:People often say that this or that energy saving item uses more energy to make than it saves, and it is almost impossible to prove one way or the other. I say if it costs fewer dollars than the power is saves would have cost that it must NOT have taken more energy to build, because the builder would have had to pay for that energy and made that cost back from selling the item. But extremists say that the cost is not "properly" accounted, and...

    Solar Cells Manufacturing

    Marshall Said:What cell organelles act as u.s mail room, coal-burning powerplant, solar power plant, manufacturing plants?We Answered:Coal-burning power plant: mitochondria Solar power plant: Chloroplasts Manufacturing: Golgi bodies U.S. mail room: Plasma membrane...

    Solar Cells Modules

    Daniel Said:How fast does solar cells move a motor?We Answered:A solar cell puts out DC power. The motor you should use will be a permanent magnet DC motor. the permanent magnets for a low voltage motor like this should be of the rare earth variety. A DC motor's speed will increase with increasing voltage assuming that the current is sufficient to provide enough torque for the load. Most of these cells put out enough current for small loads on small motors so the 1.0 Volt solar cell (or an array of them connected in series) will have...

    Solar Cells Panel

    Wanda Said:I just built my own solar panel with 4 amp cells but I only get 1 amp total. Whats up with that?We Answered:I think your 100 feet wire is killing your current. If you think about it, wire itself has it's own resistance and if you have a 100 feet of wires, you'll still loose a huge amount of current since its being used up. Also, sunlight. Is the same amount of sunlight even covering all 40 of your solar panels? If not, or if its varying, that is another problem....

    Solar Cells Panels

    Joan Said:will a optimum power factor decrease the need for solar panels ?We Answered:Power factors like better insulated buildings and cars? Sure!! Better thermal-insulated buildings maintain constant temperature longer, requiring less power to operate air conditioners, heaters, etc. Reduced power leads to smaller-output and more efficient Ac's and heaters, higher percentages of solar panel power, and so on, for the homeowner, and reduced kilowatts from the power companies, reduced utility bills, reduced pollution from power plants, and many other environmental savings, which helps "Green" the planet!!Stephen Said:Hey I was wondering if anyone know what solar cells?We Answered:I have found these...

    Solar Cells Photovoltaic Cells

    Charles Said:To what length would you go to quit smoking/ any other addiction?We Answered:Sadly Faith that is probably the lengths I would have to go to to quit my filthy habit.....

    Solar Cells Photovoltaic

    Vickie Said:OK, this might sound stupid--how can a person help with solar photovoltaic cells?We Answered:Well,We need people to make solar panel,we need people to install solar panel.Leo Said:Which of the following is most likely best to use out of the following as our viable alternative energies?We Answered:Use all of them...

    Solar Cells Power

    Tim Said:Exactly how big would a solar field have to be to power the us, soley with solar cells?We Answered:probably as big as the us becaus right now solar panells only get 5% efficency. that is not a reasonable source of power if you are really interested in other forms of power check out an older issue of popular science. check their web site they did a design competition a while back.Cody Said:What kind of batteries to store power generated by wind or solar cells?We Answered:Deep cycle lead acid batteries are the best value for the amp-hr, although they are...

    Solar Cells Price

    Oscar Said:What is the best solar adapter?We Answered:http://interstore.com/product/166-24663/… http://www.affordable-solar.com/voltaic-… http://www.northerntool.com/webapp/wcs/s… ...

    Solar Cells Prices

    Sylvia Said:Solar Cells in Dallas?We Answered:Try Fry's Electronics (frys.com) in the Solar Kits section. They have a bunch of different components and things there... almost too much....

    Solar Cells Production

    Velma Said:What's the production of 1m2 solar cell per day(in kW/h)???We Answered:The production of energy of the solar cell are affected by 2 factors: insolation radiation received and efficiency of the solar cell. Insolation radiation received can be described as the amount of sunlight an area is receiving. Insolation measurements are dependent on the daily weather pattern, seasonal pattern and geological location. Tropical afternoon radiation is about 800W/m^2 at peak. Insolation radiation is measured in W/m^2. This is the total amount of energy an area is receiving but it is not the energy produced by the solar panel. Energy produced by the...

    Solar Cells Purchase

    Robin Said:Alternative Camping Heater Source Other Than Propane?We Answered:The normal alternative to propane in camping is white gas (name in US at least) which has the great advantage over propane of not requiring a heavy container to contain the pressure. It has a lot of Btuh's in liquid form and can be carried in a thin metal container (or some plastic containers) Many stoves and heaters are available that run on white gas/Colman fuel/camping fuel. But the real answer is to not try to heat a space that is separated from the cold by a thin layer of...

    Solar Cells Sale

    Rebecca Said:Please solve system of equation?We Answered:x + y = 20000 - .25 x + .19 y = 4.56 -25x + 19y = 456 -25 (20000 - y) + 19y = 456 -500000 + 25y + 19y = 456 44y = 500456 y = 11374 x = 8626 11374 * .19 = 2161.06 8626 * -.25 = -2156.50 Net = 4.56Troy Said:please help solve word problem?We Answered:Hi, x + y = 20,000 -.25x + .19y = 3.24 25x + 25y = 500,000 -25x + 19y = 324 ------------------------------------ 44y = 500,324 y = $11371 in Acme Solar Widgets x = $8629 in the stock market I hope that helps!! :-)...

    Solar Cells Silicon

    Darrell Said:A 5 square metre array of silicon solar cells has an efficiency of 21%. Averaged over the course of a day (24?We Answered:250 watts per square meter over 5 square meters give 250*5, or 1250 watts of insolation. Since the efficiency is 21%, 1250*.21 or 262.5 watts average are collected. A watt is a joule per second. A day has 24 hours, each with 60 minute, each with 60 seconds, so 24*60*60, 86,400 seconds. 262.5 joules per second for 86,400 seconds mean 22,680,000 joules, or 22.68MJ.Minnie Said:How can i cut silicon solar cells?We Answered:the term is cleaving. You want...

    Solar Cells Small

    Lester Said:Can anyone tell me the uses of a solar cell?We Answered:I think what you are actually asking is that you have a few small solar cells, and want to "play around" with it.... If they are quite small, then there are not many "useful" things you can do with them. Firstly, you need a simple Volt Meter, range 0 - 10 Volt DC. Hook it up to one of the cells in broad daylight, and determine - a) the polarity of the 2 wires coming out: If the needle of your volt meter goes "to the right", then remember: The "plus" of...

    Solar Cells Solar Panels

    Marie Said:Do Solar Cells contain anything toxic?We Answered:Cells manufactured in the last few years will generally be ROHS compliant, and contain no lead in the solder. Our panels were manufactured in 2006, and have the "no lead" icon on them. The processing of silicon wafers involves some toxic substances, but the finished cells themselves don't have these products in them. Silicon tetrachloride is a raw ingredient from which a refiner makes polysilicon. But the finished silicon ingot is immensely pure, no chlorine left in it....

    Solar Cells Surplus

    Theodore Said:Let's go to space, or how about robbing Peter to pay Paul?We Answered:Your question got way too political way too fast. Look, if you're wondering about going into space, let me say this: There is no real "benefit" to going into space. At this point, it is strictly an exploration project. If space was commercialized and private companies able to reap the rewards of going to other planets for resources, then maybe it would move faster. As it is now, NASA is, for all practical purposes, a hole to throw money in. I admire NASA, but no one cares. Answer to...

    Solar Cells Technology

    Daniel Said:Chairs, medical advances, aircraft, and solar cells are examples of scientific principles?We Answered:Technology. I picked that one because none of the other choices fit those examples.Kay Said:what technology came out of solar cells?We Answered:Solar powered calculators that have no batteries. Emergency radio phones and wireless video survelance where there is no easily available power. Ongoing power in space for satelites without using nuclear sources....

    Solar Cells That

    Shannon Said:Do large arrays of solar cells reduce global warming?We Answered:Solar photovoltaic cells are much more expensive than wind turbines as a means to produce electricity. The cost of electricity produced by wind turbines is approximately 4 cents per kilowatt hour(1) That is less than the cost of production of electricity by the use of Natural Gas and only slightly more than the cost of production of electricity when Coal is used as the fuel. The best way to stop Global Warming is to stop the use of fossil fuels for electricity production. The best way to encourage people to use electricity that...

    Solar Cells Uk

    Becky Said:I don't get this question!!!!Energy and Electricity.?We Answered:So it puts out 100 watts on the average and it can do this for 200000 hours at a cost of £ 4000 100 watts x 200000 hours is 20000 kw-hrs £ 4000 / 20000 kw-hrs = 400p/20 kw-hr = 20 p/kw-hr it's just dimensional analysis, very simple, plus common sense....

    Solar Cells Used

    Mary Said:could cars/vehicles be built in such a way as to take power from solar cells used to pave roads and side walksWe Answered:Solar cells work best when placed in direct sun light. There are plenty of roofs, awnings and sides of buildings that could be installed with solar panels. These could be used to feed the national power grid. Which would reduce need for power generated via polluting sources. There is a question of cost though. There are a few projects underway at present that have the potential to significantly reduce the cost of solar cells. http://solar.anu.edu.au/level_1/research… http://www.dyesol.com/index.php?page=Hom… There are also many ways...

    Solar Cells Uses

    Agnes Said:solar cells?We Answered:Its very true that solar cell efficiency depends on the location where they are being used. This is primarily because of the tilt of the Earths axis as well as seasonal changes. Basically as you get closer to the poles the suns rays become more and more "spread" out because the land in those areas is facing away from the sun. On average days are shorter closer to poles as well because, depending on the location, they may never fully face the sun even in full summer, where as the equator directly faces the...

    Solar Cells Voltage

    Monica Said:in solar cells, why does the no-load voltage increase at a decreasing rate with respect to light intensity?We Answered:To answer your question as worded, as the light intensity increases, the voltage produced first increases but then begins to level off and will not increase continuously with light intensity because the solar cell becomes "saturated". The cell has only a finite number of sites from which electrons can be knocked free by photons of light. After all the sites have their electrons knocked free, no more voltage can be produced. Here's a little something extra. Depending on what...

    Solar Cells Work

    Joel Said:Why do solar cells only work under the sun but not under lamps?We Answered:I thought solar cells DO work under lamps...

    Solar Cells Working

    Andy Said:i need solar cell working clips& solarcell pictures give me the links?We Answered:You'll find it on motherearthnews.com...

    Solar Charger Cell Phone

    Duane Said:Will a 4.5 volt charger burn up a 3.7 volt cell phone battery? If so, what resistor would I need to kill .8 V?We Answered:Dont use resistors, try using a Zenor Diode. The diode will kill .6 volts. As for resistors, you want a resistor to slow down current. It is current that will kill a drained battery while voltage kills a full batt. You will need to rectify the panel so that the full battery doesn't unload into the panel during off peak hours. The diode, a one way current valve, requires .6...

    Solar Charger For Cell Phone

    Irene Said:Electricity powered charger OR solar charger for my cell phone?Advantage and Disadvantage??We Answered:There is no answer?It is so quiet here! Solar chargers there are3 incomparable advantage: 1) it is a backup power and a charger at the same time; 2) charge our battery anytime and anywhere,especially without access to AC outlet. 3)decrease our electricity bills and reduce pollutant to environment Here is a "solar chargers benefits" article, hope it will give you more detailed information!Beverly Said:Buy my friend a cell phone charger as a Christmas gift??We Answered:I have found a "Solar-Charger-for-iPod" article on hubpage.com this morning, which introduce solar charger for iPod...

    Solar Charger For Cell Phones

    Nina Said:How can I save money around the house?We Answered:You can find many more tips and also a forum to ask questions at The Frugal Life website: http://www.thefrugallife.comConstance Said:How Long Would It Take For A 3-Watt Solar Panel To Charge A 7-Amp (SLA-Gel) Battery?We Answered:A 7 amp battery is pretty big. I have a 12V 4.5 amp battery and it takes a week to charge with my 12V 0.144 amp solar panel, when placed in direct sunlight. In the equasion A= W/V, 3 watts / 12v is 0.25 amps. Thus for 7 amps, you will need about 28 hours (7 / 0.25)...

    Solar Electric Cells

    Arthur Said:What is the most reasonable solution to the world's dependence on oil?We Answered:The most reasonable solution is to ration oil via price. Eliminate the cartels like OPEC which are manipulating the price of oil for their own profit plans. Let oil go to those who want to buy it and let the price determine who wants it the most. Let the capitalist market determine its allocation... this is a new concept since the oil market is currently controlled. Anyway, alternatives will become more available and appealing. Second, eliminate government energy plans and laws. ...

    Solar Electric Panels

    Alan Said:How different might things be now if Reagan hadn't taken Carter's solar panels off the WH?We Answered:We wouldnt have had to invade Iraq Carter also cut importation of foreign oil, Reagan reversed that tooFrancis Said:How much installed solar capacity is needed to completely power a 100% electric car ?We Answered:Electric cars get 2-4 miles / kWh. A golfcart type will get more. An electric bicycle can get 100 mpkWh. Okay, so lets say it gets 2 mpkWh. that's 6000 kWh requirement per year. That can be supplied by a 3 kW array if you live where I...

    Solar Electric Power

    Gina Said:solar powered electric heater?We Answered:You are talking about two different things if you want an electric heater. You need to generate solar power (electricity) with photo voltaic panels. After that any standard electric heater will work. The better solution is to use the solar to directly heat a transfer liquid (usually water) then run it through an indoor coil with a fan. The liquid does not usually get hot enough to use in a radiator type system. There are hundreds of designs already out and available for this type of system.Isaac Said:How to evaluate solar power...

    Solar Electric Systems

    Freddie Said:What is the best option of how to use Solar System?We Answered:If you want an answer, it helps if the question is intelligible!Alice Said:How do electric fences work?We Answered:Yes, you have to run the conductor around the pasture. I did not run the wire underground at the gates, I put in an insulated gate. It is just a handle which is spring loaded and I attach it to the conductor on the other side. when the gate is open part of the circuit is dead, but as soon as you connect it back you are good to go. Yes...

    Solar Electrical Panels

    Darryl Said:is it possible to find out my gross electrical usage?We Answered:Sounds like you need a power meter to attach to your equipment. It will measure how much power, in Watts, it is generating. Take that reading and add it to the electric company power meter to get the total. Thank you for being green and Good Luck!Leona Said:Can we turn heat energy to electrical energy directly?We Answered:What you are asking about is not only possible, it has been in use in limited applications for a while. These devices are based on the Peltier–Seebeck and Thomson effects: http://en.wikipedia.org/wiki/Peltier-See… Thermoelectric generators...

    Solar Energy And Solar Cells

    Chad Said:Is it theocratic ally possible to combine wind turbines and solar cells in to one?We Answered:no to any useful degree. certainly you could spread solar cells around the ground under windmills. they don't block much sun, so that would work fine. it'd be a good idea, providing the location is suitable for both. but i'd not call it combining them. you certainly would not want to put solar cells on the vanes of a windmill. you want the blades to face the wine, and you want your solar cells to face the sun. i can't even imagine that occurring together. however, if you've seen a large wind...

    Solar Energy Cell

    Alexander Said:whats the maximum a solar cell can give energy kept in sun for 24 hrs?We Answered:That's a strange question, because the only places on earth where it can be sunny for 24 hours straight it's not really bright enough for a solar power to be useful. On the other hand, near the equator it might be intensely bright all day and dark all night. That's where you'd want a solar panel. I've heard earth gets about 1000 watts of light per square yard. If a solar panel is 30% efficient then a square yard of...

    Solar Energy Cells

    Sheila Said:I kno solar energy is the be-all, end-all but what happens to old photovolcaic cells?We Answered:no you are right.... however those chemicals can also be recyclcled into new Photovotaic cellsJamie Said:how energy independent could one be if they were to dedicate a 40x10ft.houseboat deck to solar cells?We Answered:Yes solar panels are quite efficient and I suggest covering half that area with solar electric panels + one or maybe two small boat size wind generators, so hopefully you will always have some kind of electricity supply available. I live in the Uk and have used solar cell arrays for over 10...

    Solar Energy Energy

    Lori Said:For a given area and time period, the amount of solar energy converted to chemical energy is called A) primary?We Answered:C primary production...

    Solar Energy Materials & Solar Cells

    Nathaniel Said:bio help please thank you so much?We Answered:Lol it's probably more work typing in all that than actually looking up the answers in the book.Arnold Said:Can't figure out these answers, help please?We Answered:11. D 12. B 13. B 14. A 15. D 18. A 19. either A or D 22. A 23. C 24. A 25. either A or B Hope that helps!Rose Said:Help! Cell parts and their functions?We Answered: Cell Organelles Cell Membrane=City border Cell Wall City=Wall Cytoplasm=Lawns Endoplasmic=Reticulum Highway or road system Ribosomes=Lumber or brick yard Golgi Bodies=Post Office or UPS Chloroplasts=Solar Energy Plants Nuclear Membrane=City Hall Fence with security guard Mitochondria=Energy Plants Nucleus=City Hall DNA=Original...

    Solar Energy Materials And Solar Cells

    Deborah Said:Should windfall oil profits be taxed and used to fund alternative energy?We Answered:ha ha ha ha.... sure, tax the 8 cents collected on a dollar's sale of gas and do nothing about the 42 cents of government taxes collected. But let me tell you when you do: A) It has a similar effect to taxing cigarettes for health insurance. The consumption (and in the case of oil production) goes down, which means the revenue goes down, which means the program you were funding has less money to work with if it does not get shut down entirely like...

    Solar Energy Materials Solar Cells

    Jimmie Said:Help on homework please!?We Answered:*1. C) They use chemical energy. Not all cells use chemical E! But, most E from light is converted to Chemical E. 2. A) ATP. ATP carries E for cells. That's why when they are broken to ADP, they release E! And in order to release the E, they must have E, so it's A. 3.D) chemical energy to produce ATP. Sunlight is converted to chemical E in thylakoids of Light dependent reactions. 4. A) energy is released from an ATP molecule for cellular processes. Whenever to take off a phosphate, it changes from ATP to ADP,...

    Solar Energy Panel

    Tammy Said:How much energy can a solar panel provide?We Answered:Depends on the panel. http://www.solarhome.org/solarpanelscent…...

    Solar Energy Panels

    Johnny Said:how much energy does a 70x70 sq ft area of solar panels collect?We Answered:I'm putting in a $100,000 solar wind project on ST Thomas, Virgin Islands so I have some experience here..... 1) depends on where you are...the further north the less efficient the panels are because early morning and late afternoon sun hitting at a great angle isn't anywhere near as good as noon hitting perpendicular..........the US Department of Energy has a "solar calculator" showing how many hours a day over the year you get enough sunlight to actually run the panels....in the Caribbean the answer is 6 so...

    Solar Energy Photovoltaic

    Lucy Said:career in photovoltaic?We Answered:Just search the internet and you can find at least two or three. Despite the recent financial downturn and shake-out in the market, it is still a very good time to join the solar field. Solar photovoltaic technology is a rapidly evolving field and numerous start-ups are offering attractive packages for individuals bringing solid business, management, and scientific skills into the field. There are numerous opportunities for career changes into PV, and renewable in general. Scientists are working to develop more efficient solar energy systems....

    Solar Energy Power

    Wesley Said:do you think we could generate enough solar energy to power the world?We Answered:If you work out the solar irradiation per square meter, you'll find that there is more than sufficient energy reaching the Earth... the problem is finding an efficient, cheap way to harvest and store it. The other issue is polar regions that might undergo months at a time of darkness. On a not totally unrelated topic: There's enough harvestable wind energy to power the world six times over. At the moment though, wind turbines convert about 14% of the total energy in the wind flowing through them....

    Solar Energy Solar Cells

    Craig Said:Solar energy output in watts?We Answered:Generally you can assume that average irradiance of the sun at the Earth's surface is 1000 watts per square meter. Multiply that by the square meters of panels you have and factor in the efficiency of the panels. Today, the most efficient photovoltaic panels that are readily available have effiencies less than 20%....

    Solar Energy Solar Panels

    Lee Said:Is it true that one can build his own Solar Panels to Reduce Energy Dependence by 80% for less than $200?We Answered:Here is my favorite analysis of these sites: http://www.nlcpr.com/Deceptions6.php But even without the technical detail, think about it. If it were possible to easily make something to generate that much energy for $200, don't you think there would be guys walking around the neighborhood, selling it for, say, $1000? There's a reason why the price is $10k or $20k today for a practical system....

    Solar Energy Systems

    Chester Said:why dont we all have solar energy?We Answered:I think any new technology to work in the market requires a push from the manufacturer. Presently global market is controlled by mighty industries who has enough money and resources to safeguard their businesses. This practically applies to all the segments. For an example, oil prices have been going up not because its not available - one of the main reason is that it's price is controlled by oil producing countries. They have oil strength to bring any country on their knees. Similarly, it is possible that energy giants who has billions at...

    Solar Fuel Cell

    Andrea Said:what are the cons for coal,natural gas,hydroelectric,geothermal,hydrogen,f… cell,wind,nuclear,and,solar?We Answered:coal produces CO2 and global warming/ fumes that create air polution(mercury and such) it is also a fossil fuel, meaning that it cannot be renewed nuclear produces nuclear waste that can be made into weapons although we now have technology that can use 99% of the fuel and the remaining waste will be of such low grade not even a dirty bomb can be made. This is promising for nuclear power since it lasts the longest and is highly productive solar is that the panels take up lots of space and that space...

    Solar Fuel Cells

    Tracey Said:Suggest how you would use the electricity from solar cells to produce a clean, nonpoluting fuel.?We Answered:Use the electricity to separate the hydrogen and oxygen ,from water, by electrolysis, and then burn the hydrogen to produce only H2OPhyllis Said:What will be greatest source of energy in the next few hundred years? Solar energy? Hydrogen fuel cells?We Answered:If you mean greatest source as in overall production then solar shall be your answer hands down. If you mean, greatest in the sense of coming from one place as a power plant, then one should answer fusion. And we...

    Solar Heating Panels

    Clayton Said:I'm thinking of setting up solar panels to keep down the cost of winter heating bills. Where do I start?We Answered:There are two main types of solar panel. One generates electricity and will help offset your electrical bill. The other type is used to heat water. If you have a gas water heater using solar panels to heat water will help lower your gas bill. There is a third type that can possibly help with space heating that is used to heat air, which can heat your house. One thing that is very important about solar panels of any kind...

    Solar Hot Water Panels

    Randy Said:How much should solar hot water and radiant heat cost in Maryland, USA?We Answered:Without information of how big the footprint of the house is, and how many people the domestic hot water (DHW) is for, it is hard to say. You said you got a quote for 3 -4 collectors, so I'm going to make some assumptions based on that. Four 4'x8' collectors = 128 sq ft of collector. A general rule of thumb for space heating with solar is 1 sq ft of collector for every 5 -10 sq ft of house footprint (depends on heat storage,...

    Solar How To

    Willie Said:How does ozone react to radiation?We Answered:No, it makes absolutely no sense. Solar radiation either heats ozone or destroys it. Ozone does not form a "solid" layer, but is diffused in essentially normal air (at low pressure) over about 50 km of altitude. Solar radiation powering a solar sail kilometers in diameter may eventually take us to the stars, but it'll do nothing in an atmosphere. Solar flares make more net ozone. Radiation makes more net ozone. But it is still just a diffuse gas.Dean Said:How can I tell if a watch is battery powered or not?We Answered:If a watch is...

    Solar Hydrogen Fuel Cell

    Joe Said:Fuel cells Hydrogen consumption rate.?We Answered:The amount of energy generated during formation of water from H2 and separation of water into H2 would be the same provided the reaction is reversible. Also, the efficiency for the two reactions may be different (due to technological problems) because of which the actual available energy as work may be different. Probably because of this consideration it is more economical to run the car using a fuel cell instead of directly running it on the electricity. As for the 2nd question: a fuel cell producing its own fuel would not be possible. The theoretical...

    Solar Panel Calculator

    Charlie Said:Can I make a solar panel for my house with a massive amount of solar panels from calculators?We Answered:That would be a fun thing to try, but keep in mind that the little solar cells from calculators are very weak, producing only about the same voltage as a flashlight battery, and a power of maybe 1/1000 of a watt. So that would be 1000 of them to power your iPod, or 1,500,000 of them to power your toaster. If the time and trouble is worth anything to you, it would be easier to simply buy a ready-made solar panel.Lisa...

    Solar Panel Cell

    Douglas Said:What does the term'solar panel' means to you?We Answered:About any thing can be a panel. Just depends on how you want to look at it. I'm going to twist this in about three ways and if you can follow it you will be either confused or understand that every thing is a panel long as there is more then one hooked together to make one unit. A solar cell is normally one but could be called a module if it were made in a way where it connected to others to make a whole. So the whole (many cells) then would...

    Solar Panel Cells

    Francis Said:If i build a solar panel with 96 cells, each rated at .5V, will my voltage be 48v?We Answered:Depends on how you wire them. All is series, yes, you will get 48 volts. Depends on the battery. If it is 36 or 24 volts, yes. But it may take a very long time. If it is a 48 volt battery, no, as you need about 60 volts to charge it. .Tony Said:Solar panel Voltage and Amperage increase?We Answered:No. Each panel is capable of a fixed number of watts = (voltage)(current). When you connect 2 panels in series, the...

    Solar Panel Cheap

    Miguel Said:what is the cheaper and longer last alternitive between a solar panel, a AA, and a AAA?We Answered:looks like someone is trying to cheat on their homework!...

    Solar Panel Companies

    Elaine Said:I need a 1/2 hp dc motor and solar panel so that I can replace the motor in my evaporative cooler.?We Answered:If the motor is really 1/2 HP, then that's about 400 watts, maybe realistically 300 when running. Many motors of that size are actually "universal" motors, and will run just fine off DC. I won't give you any guarantees that it will work, and most likely no one will. You would also need to develop about 100 volts DC, which is 4 grid-tie type panels in series. To give margin when the sun isn't absolutely brilliant,...

    Solar Panel Construction

    Grace Said:some tips on designing a solar panel that follows the sun. ?We Answered:Is this a solar tracking system? Buy the solar array itself, you can't build these any more than you can build a transistor. You basically need a large flat panel that tilts. Easiest is to use a motor and clock so the angle changes per time of day. Remember it has to be in a place facing south, with no shade and an unobstructed view of the sky from straight up down to the horizon to the south, or as close to the horizon as you can get. That's...

    Solar Panel Cost

    Paula Said:What is the total cost for a solar panel and accessories to generate a 100 watts power?We Answered:Depends on what you are trying to do. Are you looking for a stand alone system with batteries? Is the load AC (plugging into the wall) or DC (running directly off the battery). If it is AC, you'll need an inverter. Is the load you are trying to power 100W, or do you want a 100W panel? There are system losses, so it's not a 1:1 ratio. You would need to know the load and how...

    Solar Panel Costs

    Julia Said:does anyone realize how much a solar panel costs?We Answered:I thought they'd be a lot cheaper than that after all the development time. If that's true, I now know why solar power is pretty much dead in this country. That seems ridiculous....

    Solar Panel Efficiency

    Ross Said:I have a 60w solar panel and a 12v large deep cycle battery, how do I get it to charge faster?We Answered:Hey Savage, Jeff is right on the angle, but I imagine if you've built the panel yourself, you're tuned into that. I'm guessing that your panel does not have the amperage to push that deep cycle battery up very fast. Lead acid batteries go through a charging voltage curve, the volts curve up quickly at first, and around 12.6 level off until you are above 90% state of charge, then you see much higher voltage as...

    Solar Panel Electrical

    Sonia Said:solar panel question?We Answered:Depends on the panel. On the order of 10% perhaps depending on you you measure it. More importantly, what they don't tell you is that more energy is consumed in the mining of necessary materials and the manufacturing process than one of the silly things can produce in a lifetime. Not that there isn't a place for solar panels. It just isn't a smart way to produce energy in large quantities just yet....

    Solar Panel Energy

    Emily Said:Solar panel?We Answered:That does seem a little confusing. But is really pretty easy to understand. When the solar panel is facing the sun at noon it will produce the most power it can be it summer or winter. But there is a however involved here. In the summer the sun comes up in the north east and sets in the north west which would be behind the solar panel in the morning and late after noon. So you lose that part of the day. By laying it back 15 deg more the sun will be able to shine on...

    Solar Panel Guide

    Mattie Said:i have 3 solar panel each of 12V & 75W.but i need 48V supply to charge the battery system .?We Answered:Adding a battery won't help. The extra battery will just discharge. To charge a 48 volt system you need 48 volts. Add a 4th solar panel. This will give you the 48 volts you need to charge the batteries. Just connect the solar panels in series. If you simply can't add a 4th panel, you can get a voltage converter to change the 36 volts (series connection) from the 3 solar panels to 48...

    Solar Panel Home

    June Said:where I can find this solar panel?We Answered:How much current are you looking for? If its under 500mA, then they are fairly cheap. Over an amp and the price climbs. Here's a few ideas - All in one simple changer - http://www.siliconsolar.com/pda-solar-ba… If you know something about electronics (series-parallel electrical circuits) and know how to solder. You can build your own - http://www.siliconsolar.com/commercial-s… http://www.siliconsolar.com/1-5-watt-sol… For a recharger system, its usually best to have charge controller. This device regulates the current and voltage to whatever you are using as a load. http://www.futurlec.com/Solar_Charge_Con… The other thing to do is to search for "DIY solar chargers" for more information....

    Solar Panel Homes

    Luis Said:How many solar panels could £3 million get me,and how many homes would that power?We Answered:For the price on solar panels and their output, consider: http://www.ebay.com Next, consider the outputs to be maximum for when the sun is shining directly on them. What you will actually get depends on where you are, and how often it is cloudy. Also, it depends on whether you install the panels statically, or on a surfaces that automatically move to tract the sun. The actual capture of radiation is theoretically: Actual Power = (Solar Power)sin(angle between the Panel and the rays) Usually, it will be better than...

    Solar Panel How To

    Dwight Said:How much of a solar panel does it take to charge a 9volt battery?We Answered:The solar module (panel) with the lowest voltage I know of is rated at about a half amp at 15.6 volts. This module would charge any rechargeable battery of 12 volts or less. It would require resistors to limit the current, and would overcharge the battery without a sophisticated charge-limiting circuit. Look on the web for the Siemens ST-5...

    Solar Panel Installation

    Patsy Said:How do I claim solar credits?We Answered:Hello Marta, We understand that people get easily confused with government rebates and all the regarding regulations. That's why we have put a easy guide on our web page on how to get a new solar power system discounted with the government solar rebate: http://www.carbonfootie.com.au/solar-pow… To break it down on a simple level: When you install a new solar power system you get entitled for Renewable Energy Certificates (REC). They are like shares and can vary in their price. Actually REC are worth around $30 (17/02/2010). These REC's get multiplied with the solar credits. This...

    Solar Panel Jobs

    Ramona Said:The US has 6,000 employed in Solar Panels & Windmills. How will Obama create 250,000 green jobs?We Answered:Make more solar panels and windmills? Not to mention solar thermal, energy efficiency improvements, a new grid, research -- I can think offhand of ways we could spend hundreds of billions of dollars a year on this. Why are you even asking this question?Elizabeth Said:£1bn scheme to create 'non jobs' a good idea?We Answered:Oddly, yes it does. It actually also makes sense to build railyways, roads, plant trees and to create community facilties during a time of recession. The reason for this is straightforward. If...

    Solar Panel Kits

    Patrick Said:do anyone have the power4home-solar kit and do it really work?We Answered:This describes my opinion: http://www.nlcpr.com/Deceptions6.php conclusion: don't waste your money....

    Solar Panel Lighting

    Kathryn Said:Does anybody know about solar panel? What are the disadvantage of it, when it comes to lighting?We Answered:When its raining it won't workSteven Said:Would anyone know about any good store resource that sells quality outdoor SOLAR porch lighting?We Answered:Hi, I saw some great solar lights on this website. http://www.ceilingfanslighting.com/solar… Hope this helps.Jeremy Said:Help with a simple outdoor solar lighting system?We Answered:You need a panel, 5W is maybe fine, possibly 10W. 12V nominal. You need a charge controller to prevent the batteries from overcharging. You should use LED lighting. I would prefer a Sealed Lead Acid cell. It won't be very cheap.Darren Said:I would like to...

    Solar Panel Output

    Ricky Said:Can a modified solar panel be used as or adhered to wind power generating blades to increase energy output?We Answered:Windmill blades are thin and need to be smoothly curved to just the right shape to be efficient. And they must face the wind. Solar panels are flat, very wide, and must face the Sun. You would be FAR better off covering the unused ground UNDER the windmill with solar panels than putting the panels on the blades.Ronald Said:Finding the output of a solar panel?We Answered:You need full sunshine from the sun, or a lamp that will give a light...

    Solar Panel Plans

    Barbara Said:What can i run with a 60W Solar Panel Setup?We Answered:I would hazard a guess that a 60W solar panel would suffice to power one 60W light bulb. Maybe a cordless phone or two.Gertrude Said:I have a 30 watt solar panel that puts out 1.8 amps. What size battery should I get?We Answered:A regular car battery will probably be more than big enough. I doubt the one panel will even completely charge it in one day.Violet Said:What battery to use for a Solar Panel Briefcase?We Answered:These devices are not really useful for charging large batteries, such as a...

    Solar Panel Price

    Kathleen Said:How can I find a conbination of Solar Powered Street Light and Security Camera as a combo and at what Price?We Answered:A forty watt street light isn't much of a light, even if it uses LED's -- which at present are about as efficient as a high pressure sodium lamp. Solar power runs about $10 a watt; you need 40 watts for the light, plus 120 x 2 = 240 watts for the camera (presuming that it operates continuously), which you have to double because of the cosine rule (sun doesn't shine directly on the panel, so average...

    Solar Panel Prices

    Christina Said:im looking for a solar panel for my psp?We Answered:Here is one at REI that should work www.rei.com/product/802089?partner=aff…Phillip Said:What is the parameter in Solar power that specifies the amount of time it takes to pay back your investment?We Answered:In business, you'd call it amortization. To simplify, it's the process of spreading your cost over a number of years. In this case, if the panel lasts long enough, you wind up amortizing your cost over the number of years it takes you to recover in "free" electricity a) the initial $750 purchase/install price, plus b) the interest you didn't make...

    Solar Panel Purchase

    Anne Said:How can I power LED light strings with a solar panel?We Answered:Those LED lights use so little power, I'm afraid there is not much to be saved by powering them off solar. If solar was all you had, then it might be worth tinkering, but I'd say just plug them in to the wall, and if you're not using them, turn them off....

    Solar Panel Rebate

    Constance Said:Solar For 150 Amp house?We Answered:A 900 Sq. Ft. house may have a 150A. Service, but you'll not be using much of it. Before considering solar, determine your actual usage. Rough figure solar power at ~$1800 per KWH. capacity....

    Solar Panel Suppliers

    Thelma Said:Help with wood-burning stove issue?We Answered:Don't give up yet. You need dry, well seasoned wood. Although your wood supplier might claim that the wood is seasoned it might not be true. You can tell - look at the cut ends of the logs. Seasoned wood has radial cracks where it has dried out. Beech is good wood but it might be the load you got needs more drying. Stack it up in a well ventilated dry place for a year. I have a stove and burn all kinds of wood in it but the well seasoned dry stuff is...

    Solar Panel Supply

    Edith Said:How much will a 40 Watt Solar panel supply?We Answered:Hey Kyler, 40 watts is the "Nominal" rating of the panel. They get that number by taking the maximum amperage while the panel is shorted out in direct sun and multiplying it by the maximum voltage while the panel is completely disconnected in direct sun. Most panels are wired for 18 volts, this makes it possible for the panels current to overcome both the charge controlling circuitry and the battery voltage and still be able to charge a 12 volt battery. Car alternators are generally set at...

    Solar Panel System

    Matthew Said:Is it possible to operate a 3 way fridge solely from my 12 solar panel system - ?We Answered:Sure there are, they are for use in trailers. All different sizes, and prices. Search for "refrigerator 12 volt" and you will see lots. here's one: http://www.pplmotorhomes.com/parts/rv-re… You need a solar panel that can supply perhaps 100-200 watts, a charge controller, and a 12 volt sealed marine lead acid battery.Paula Said:how many batterys use in a solar panel system?We Answered:Depends. You don't need batteries at all, or you could wire up as many as you want. Go and learn about grid tie-ins and off-grid systems....

    Solar Panel Systems

    Melanie Said:solar panel System?We Answered:First buy the pannels(depending on how many cost maybe $5k to $15k) buy the battries($1k) and an inverter(mabe $1k to $10k) mount them faceing south(on roof or poles) and wire in.A rule of thumb is generator is cheapest,to go to wind power then X10 cost,to go to solar cell then X 100 cost (of gen)Paul Said:solar panel system without batteries?We Answered:It is possible although it is not recommended. I have done this with a small power inverter and a solar panel. I used it to charge a phone with a 110 charger. The inverter kicked in...

    Solar Panel Technology

    Bryan Said:How do we save the U.S. from oil and polution and conserve energy?We Answered:Electric cars are available right now, and there are quite a few to choose from. If you have the money, you could be driving an electric sports car that can out-accelerate a Ferrari. Or a new electric pickup truck that has batteries that never need replacing, and can charge in ten minutes. * Or you could buy a freeway-capable electric car for as little as $5000. All of the above cars are discussed here: * http://www.squidoo.com/cheap-electric-ca… *...

    Solar Panel Types

    Nelson Said:What is most potent type of solar panel inch for inch to power things directly without a battery in da circuit?We Answered:Monocrystalline panels are the most power per square foot. But you really need a battery in the middle. The voltage output of the panel will change with load, and that will ruin your devices....

    Solar Panels Australia

    Terrence Said:Solar panels in my school?We Answered:SolarCentral's answer sounds to be right on ... the price might be a bit higher in Oz bucks ... say about $10 per watt because of the exchange rate with USD. I assume that price is for an "on the grid" system due to the size of the college, in which case a large chunk of money would be saved on the number of batteries required to store the power produced. An on the grid system wouldn't need many batteries and you would make some money to offset the cost by selling to the...

    Solar Panels Buy

    Janice Said:Where can I buy solar panels and miniature wind mills?We Answered:I believe this link will get you started....

    Solar Panels Cells

    Dennis Said:if solar cells were 100% efficient?We Answered:Let's jump in. M square meters * (1000 watts/square meter if efficient) * 20% * 6/24 of the day = 1 kilowatt * (1000 watts/kilowatt) That's a lot like M * 1/5 * 1/4 = 1. I'd say M is 20. ;)...

    Solar Panels Cheap

    Juanita Said:Why aren't solar power panels cheaper?We Answered:Solar cells are made either with single crystal silicon or polycrystalline silicon, with the latter being much cheaper & most common. The single crystal material is used for all standard chips, so large quantities have been used for a long time. It is still quite expensive because it is very difficult to make. The impurities are in the parts per billion level or less. Also, the enormous single crystals must be made very slowly in a furnace. The polycrystalline stuff eliminates the slow crystal growing stage. Also, Dow chemical has a...

    Solar Panels China

    Hazel Said:solar powered plane can control it via computer looking for a partner?We Answered:good luckNellie Said:How much will our electric bills go up when we start using the "green" technology like solar panels?We Answered:It will be phased in. The set up will cost more but in the long term it will cost less. To Ted above me; Cigarette costs? WTF does that have to do with electric bills?Phyllis Said:Financial collapse of unprecedented magnitude?We Answered:Yes! "All of the federal government's efforts to stem the tide of the financial meltdown have added hundreds of billions of dollars to an already staggering national...

    Solar Panels Cost

    Thelma Said:How much would cost to put solar panels on an average size house?We Answered:If you are asking about solar electric, then the amount of electricity you use and if you have a good south facing roof for mounting them tends to matter more than the size of the house. My guess is that you are just wondering if it is a good idea. Well, it looks like about $11,000 for 1300watts for a grid tie system. That's 1300watts on the perfect day. From a payback stand point it still tends to take 12-20years for the system to pay for its self depending on...

    Solar Panels Energy

    Leah Said:If a lot of cities were to switch to solar panels as energy, would that cause a higher albedo and why?We Answered:It depends. In most cases, it would lower the albedo. Albedo is the proportion of light reflected. Solar cells have very low albedo so that they don't reflect light, they absorb it and can use it to generate electricity with. Sometimes cities have low albedo (black asphalt etc), but in most cases the albedo of solar cells will be lower. Solar cells should therefore be expected to slightly lower the albedo of a city. In terms of the effect of global...

    Solar Panels For Electricity

    Julian Said:any one know about electricity "solar panels"?We Answered:The charger will accept whatever current is necessary from the solar panel up to 7A. It's not like the solar panel will "force" 12amps into the charger/battery -- the charger will control the current going to the battery. I question whether or not the 12V panel will actually charge the battery, though, because in order to charge a standard lead-acid 12V battery you need to have about 14.5 volts applied to the terminals. Perhaps the charger has a boost circuit -- I don't know without looking at it or knowing the...

    Solar Panels For Home Use

    Angel Said:Did anyone see a home improvement reality show with a couple doing yoga? I just need the name of the show.?We Answered:the one with ty peddington cinderellamirage...

    Solar Panels For Home

    Scott Said:An Inconvenient Question: What is your place of worship doing to be green...?We Answered:The Rabbi drives around in the cutest little electric car. Really.Stanley Said:How do you feel about being less important than a "green" golf cart.?We Answered:Ask a wealthy golfer if green golf carts are important. He will tell you that having an environmentally friendly comfy golf cart to park his butt on is far more important than creating low-end jobs for workers or cutting taxes for the middle class. Also you wouldn't want a golfer to stress himself by actually walking to the next hole and getting a...

    Solar Panels For Homes

    Ted Said:I would like to know if solar panels are available in phila county for private homes.?We Answered:Anyone can purchase solar panels and have them installed on their home - although if you live in a housing development, you'll want to check with the rules of your homeowners association. Some don't allow solar panels for aesthetic reasons. Solar photovoltaic panels / systems are quite expensive, so you don't see a lot of folks installing them. Also, at the moment solar panels are in very high demand. For commercial projects, we've been seeing lead times of two to nine...

    Solar Panels For Your Home

    Eva Said:When does your home or community pool open?We Answered:We had a new liner installed yesterday. The pool is still filling - we should have it ready for the weekend. Public pools open Memorial weekend.Clyde Said:I will gladly volunteer my roof for the many miles of solar panels we need to produce hydrogen for cars!!!!?We Answered:I'd like to put about 5kw of photovoltaic cells on my roof. However they are still quite expensive. Take a look at Ebay to get an idea....

    Solar Panels Home

    Juan Said:Has anybody here had solar panels installed in their home? Was it worth it? Would you recommend it to others?We Answered:There are many factors involved. You added they were not worth it. In some cases that is true, but what were the expectations? If one is realistic, and understands their electricity costs will be going up, in the US they will be going up due to administrative actions rather than legislative actions do a web search of Obama AND blackouts just as those three words are typed, the AND is a Boolean modifier so the search...

    Solar Panels Houses

    Victoria Said:Does anyone have solar panels or a solar powered house?We Answered:They work great, and there are many options, too. You can get a complete setup for about 15 to 35 grand that will give you all your power needs, or get a smaller rig and build on it. Basically just panels connected to a battery with a transformer to turn the power into something your appliances can use. RVs use smaller solar panels, and they're $300 each or so new. Don't forget wind turbines, which are cheaper than solar panels and provide power 24/7 so long as its mounted on...

    Solar Panels Information

    Joseph Said:Wiring in solar panels?We Answered:The essentials are to connect the panels in a configuration that matches the inverter. My system has twenty 24 volt panels in series, to an inverter that wants to see 480. They could have been in any series-parallel configuration to match an inverter that used different voltage. I chose the high voltage route to reduce IR losses in the connections. The proper inverter is essential on grid connected systems. It must be able to disconnect from the grid if grid power fails, and to come back on line automatically, and in...

    Solar Panels Kits

    Linda Said:Is anyone out there living off grid? Can you either tell or explain to me how I can do it too?We Answered:Living off the gird involves having some source of power (solar, minihydro, wind) and generally being very, very, energy efficient in what you use. There's a really good magazine called home power that has lots of on- and off- grid alternative power info......

    Solar Panels Manufacturer

    Lloyd Said:I need some software that will help me size strings of solar panels. Where would I find such a program?We Answered:Unforunately, I don't know where to get such a program, if it exists. As you know, each inverter manufacturer generally has a sizing tool on their website. The calculations are dependent on the inverter, as you know, so the tool will size to keep the startup voltage, current, and operating voltage within limits for a particular inverter, over the expected temperature range, given the type of panel you intend to use.Franklin Said:Is it fair that the government is spending...

    Solar Panels Photovoltaic

    Katherine Said:Do Liberals realize that current green energy will not satisfy our energy needs?We Answered:this is the type of thinking that said heavier than air machines won't fly. Your calculations are way off. The Earth receives 174 petawatts (PW) of incoming solar radiation. We generate about 30TW (oil/gas/coal/nuclear), or about 1/6000 of what is incoming. If you've ever experienced a tornado or hurricane, where do you think the energy comes from? As for anti matter, it has to come from somewhere while Fusion is still thinking old central power plant and is likely to be more expensive than current nuclear....

    Solar Panels Price

    Jessie Said:At what oil price level (s) will 1. wind power, 2. solar panels be competitive with oil?We Answered:It is very difficult to say. You have to know that it depends what costs you add and what costs you skip. For Oil the calculation is a simple one: How much for extraction, how much for transport, how is the market. The cost that is not included is the damage it is causing to the environment. As this cost is almost impossible to measure, they put it = 0 . At the time several Oil Companies are getting tax brakes and...

    Solar Panels Prices

    Joshua Said:I've read how solar panels can now be produced for under $1 per watt. Where are these panels?We Answered:The ones that you are referring to are the ones from nanosolar. Unfortunately they are not selling commercially to end users yet. They are only supplying large amounts to utility companies and major solar installations. I cant wait either....

    Solar Panels Purchase

    Milton Said:Can I get another solar federal tax credit if I move?We Answered:The 30% credit would be expired in 10 years, but that's not the point. The question is, can you take additional credits for more than one project? I'd suggest going to irs.gov and downloading form 5695 and its instructions. It used to be that you could do as many projects as you want, even on the same house, except that the total credit was capped. I'm not sure what happens now that the cap is removed.Carolyn Said:where do i get solar panels at cheapest...

    Solar Panels Roof

    Katie Said:what buliding has solar panels on the roof of cscc (colums state collage oh)?We Answered:Try going to Google Maps, Satellite view. The resolution is pretty good, and you should be able to pick out solar panels. Then compare it to a campus map....

    Solar Panels Sale

    Sergio Said:solar panelling servicing?We Answered:You also have to remember that the Solar Heating panel faces the cold open night air. That can sometimes be 10 colder than the air temp. Also the sun must be out for it to get a lot of heat. You didn't say is it was passive or does it have a circulating motor. This will help, us answer. I lived in northern Florida, and I had to drain my down and blow it out every winter. Just to be safe.. I had it freeze but temp never got below 40 Deg...

    Solar Panels Technology

    Sally Said:Are their solar panels that capture more than 40% of the suns energy?We Answered:Though the most efficient (and very expensive) research solar cells that convert the sun's energy to electricity are currently around 40% in efficiency and more common commercial cells are around 15% in efficiency, this is not true for solar panels that heat water (for pools, or hot water heaters, for example). Solar panels that heat water are typically 80% efficient though can approach 90% efficiency. They are black and absorb most of the sun's energy that is converted to heat and transferred to the...

    Solar Panels Types

    Danny Said:how do solar panels work?We Answered:The term solar panel is best applied to a flat solar thermal collector, such as a solar hot water or air panel used to heat water, air, or otherwise collect solar thermal energy. But 'solar panel' may also refer to a photovoltaic module which is an assembly of solar cells used to generate electricity. In all cases, the panels are typically flat, and are available in various heights and widths. An array is an assembly of solar-thermal panels or photovoltaic (PV) modules; the panels can be connected either in parallel or series depending upon the...

    Solar Panels Uk

    Amber Said:Where will the UK get their electricy from in 2010?We Answered:It's not 2010 that UK will have no more fuels but already long time ago, so UK is now buying it from OPEC. Anyway you are the one first discovered it and invent the process so you will be discounted.. HaH!!! HAh!!! No,, There is still lot of energy below the ground; we have plenty of this LNG which is consider a clean energy and new location have been found with huge amount of LNG. So, don't worry my friend, sleep well!!Julia Said:Can i use three different types of...

    Solar Panels Work

    Delores Said:Can solar panels work on artificial light or do they need sunlight?We Answered:Sure, they'll work with any light. A solar calculator works in a well lit room. This isn't exactly an efficient way to run things, though, since it takes far more energy to generate the lights than you can recover. Sort of like growing marijuana indoors. But yes, if you have a bunch of stolen solar calculators that you need to use, but are afraid to take outside, you can have a little computation farm in your basement where you keep them working under...

    Solar Photovoltaic Cell

    Bertha Said:compare each from of alternative energy?We Answered:I assume you mean which is best Nuclear!!! Details and evidence at the end 1. it's cheap and green 2. Its safe 3. We won’t run out of fuel 1. Due to their reliance on nuclear power [(79% of their energy is generated by nuclear, under rational legislation) only good decision that govt ever mad], France's carbon emissions per kWh are one of the lowest in Europe; less than 1/10 that of Germany and the UK, and 1/13 that of Denmark, which has no nuclear plants. Its emissions of nitrogen oxide and sulphur dioxide have been reduced by 70%...

    Solar Photovoltaic Cells

    Ella Said:how long does a solar cell last?We Answered:It doesn't run out of electrons, but it does tend to deteriorate after years of thermal cycling, oxidation, weathering, and so on. 30 years is a fairly common design lifespan....

    Solar Photovoltaic Panels

    Jeffery Said:SCIENCE HELP! It has been said that plants can survive without animals but animals.............?We Answered:1. Plant feed on the sunlight and soil in the ground to survive and grow. The animals need the plants to eat and therefore plants are not dependent on animals but animals are dependent on plants....

    Solar Power Calculator

    Catherine Said:how do you charge a solar powered calculator?We Answered:A light bulb won't do it as fast as full sunlight, but it will work if the light is bright enough.Marjorie Said:Why don't we have a solar powered graphing calculator yet?We Answered:You are right solar cells do improve over time. However the cheapest ones (as used in calculators) haven't changed much. Hence their efficiency is still very low. So in order to get the power you need for a decent graph display you need a big area of solar cells. Unfortunately big cells are rigid and easily damaged. Multiple small cell...

    Solar Power Cell Phone

    Scott Said:How much cell-phone-like radiation is emitted by the sun?We Answered:There is a chart in the source that shows it to be very low.Donna Said:Will a Solar Power Panel that produces (4.5V 30~50mA) be able to charge a cell phone of 3.7V and 900mAh?We Answered:It should work, but will take quite a while (18 times longer than normal.... 900/50) The 4.5 voltage v.s. the 3.7 should not be a problem. If you put two panels in a parallel circuit it would make it 4.5v 100mA, , only 9 times longer, , , etc... Look for...

    Solar Power Cell

    Jennifer Said:Can a 0.4-0.5 V solar cell power a light bulb?We Answered:NO,you cannot,because the lowest light bulb voltage was 1.2 volts using for a single cell mini flash light. But it requires 300mA to light it up. If your solar cell can supply 300mA at 0.5 volt. It can light up this low voltage light bulb with half brightness. Your small solar cell only able to provide about 150mA....

    Solar Power Cells

    Maurice Said:solar cells supplying power?We Answered:Hey go here http://home.howstuffworks.com/home-improvement/energy-efficiency/question418.htmCarrie Said:Do you prefer nuclear power or windmills and solar cells?We Answered:All of the above. Anything that frees us up from OPEC and allows nations to be islands to themselves with their OWN culture and laws. There are actually clean ways to deal with nuclear energy. Most of the radioactive stuff in the waste can be transformed into more waste, and the rest can be encased in glass and buried under the sea. Members of the Sierra Club actually made this illegal, not because it was unsafe, but because it could...

    Solar Power Companies

    Debra Said:solar power dose it have to be stored up in battiers be for sold too electric companies?We Answered:No. You have a meter that shows you NET usage of electricity. This means that you use electricity from the mains but you also use your own supply at the same time. You don't ever store it. You use your own electricity first and then any more you use comes from the mains. When you are not using any it goes back into the mains and runs the meter backwards, and other people use it, so in effect you are selling it back to the company.Christian Said:is...

    Solar Power Cost

    Casey Said:How much does it cost per kilowatt/hour to operate solar power?We Answered:to operate not too much but to install 10K$ for just solar panels 50K$ for real system, with batteries and inverter This is per KW! D...

    Solar Power Electricity

    William Said:Since most of Australia is hot deserts. Why doesn't Australia use that Solar Power to generate electricity?We Answered:Although 80% of the population of Australia lives within a few miles of the east coast, there are people living in most parts of the deserts that constitute most of Australia's area. The telephone exchanges in remote desert areas are powered by photovoltaic panels as are many of the unattended weather stations. These are very sensible uses of solar generated electrical energy. One way that solar power could be used on a large scale in Australia, would be for massive arrays...

    Solar Power Energy

    Tyrone Said:Solar Power energy Environmental issues?We Answered:There are some issues, but it is by far the cleanest possible solution. There are potential pollution issues with some of the chemicals used in the manufacturing process for both the solar cells and batteries. Mining for raw materials almost always adversely affects the environment. There will be less sunlight hitting the plants and animals in the areas that solar cells are deployed. Although if done properly this shouldn't be an issue....

    Solar Power Equipment

    Georgia Said:I'm wanting to set up solar and wind power together...what equipment (like inverters and stuff) will i need?We Answered:You need a battery or a set of batteries. A good charge controller that will handle two inputs and is sized for their power output and for your batteries. And an inverter, preferably sine output, sized for your load requirements, plus a margin. Of course you need the solar arrays, and wind turbine mechanics and alternator. If you plan on selling power to the power company, the inverter will have to be a type and brand approved by them, and they...

    Solar Power For Home

    Calvin Said:is solar power for my home unobtainable?We Answered:A solar-powered home isn't unobtainable. It's inefficient. Right now, you could definitely reduce the amount of external power you use by adding a few solar panels. The issue with solar panels is finding optimal angles on your house. The other problem is that you need to buy a converter that turns this solar energy into a means of powering your home. These can cost upwards of $10,000. There was a project done by Georgia Tech students where they created a house run completely on solar power. For more information on this: http://solar.gatech.edu/home.php...

    Solar Power For Your Home

    Joshua Said:Fuel diversity poll: How many of us know which fuel produces the electric power used in our home?We Answered:Hi Wrenched, A good question. Since all the electircal power that runs your home comes from a grid it is actually a mix (in most cases) of all of those fuels. Unless you personally supply your own energy via a generator or green sources then your energy comes from the grid in your area. In CT the report for 2007 had the following percentages for fuel sources that provide power to the electrical grid in the state: Nuclear = 48.93% Natural Gas = 30.04% Coal =...

    Solar Power Generation

    Betty Said:Do we realize that when we gear up to build the next generation of power plants we will be short of skills?We Answered:Next generation of power plants refer to your Nuclear power plants and Windmill as specified in your question. Be assured that there will be no shortage of skills and manpower in these fields as there many training institutes under various governments to impart skills to all those who come into this purview. I am afraid whether we are focussing much on solar power generation where we are even now finding difficult in sourcing right skills...

    Solar Power Generator

    Virgil Said:Solar Powered Generator??We Answered:The battery has a nominal 720 WH of capacity; after the inverter, this will probably yield more like 600-650 WH. How long a refrigerator will run on that depends on the fridge.  I'd estimate a day with the PV panel helping.  If you want to be sure, get yourself a Kill-A-Watt or equivalent and measure the daily consumption of the fridge you want to run. The connectors and such aren't shown.  You may be able to add a bigger battery, more PV capacity or both just by wiring them in; this would let you run a fridge...

    Solar Power Home

    Bertha Said:Solar power?We Answered:Normally when you buy a kit system it will have instructions. Never the less each part of the system, inverter, charge controller, and even the conduit boxes come with instructions on how to install them. Here is a link to a 6 meg PDF file with the wireing for the Xantrex XW system. It is only 15 pages each of a drawing. http://www.oynot.com/media/Xantrex/XW-Po… Here is a link to a page that will tell you step by step how to size a grid tie only system. http://www.oynot.com/grid-tie-only-how-t… Here is a link to a page that will tell you how to size...

    Solar Power Homes

    Jo Said:solar power?We Answered:about $20,000 to power the entire house for 30 years. Look into tax credits etc. and it might become cost effective. Wait a few years and the cost will be coming down....

    Solar Power House

    Joyce Said:How do you put solar power into your house?We Answered:Not easy to explain, but look in here; You will find out the main steps for doing it... http://www.powerhousesolar.com/Gertrude Said:Does anyone here have a solar powered house, on or off the grid? Do you use wind power too?We Answered:Yes, i do live in a solar and wind powered house.. completly off the grid!! Let me start off by saying we (my family and I) live completely, 100% “off of the grid and are completely self sufficient” using alternative fuels / energy. I was in the exact same situation as you few years...

    Solar Power Information

    Christina Said:Why is solar power better for humans?We Answered:Here is the way I see solar. Long after your coal runs out. Long after your oil well runs dry. Long after your nukes stop glowing. Your one acre of land will still be collecting solar energy. Here are some good links to start....

    Solar Power Installation

    Leslie Said:how important is it for the indian government to encourage its humongous population to live a?We Answered:Surely it is very important for the government to provide the people with accurate information about pollution control, and always in technology ,require the highest emissions control for auto makers or rather see that the emission controls are implemented in cars and trains, and and especially oil and gas related factories.Samantha Said:In Georgia, does power need to be installed in a house before it can be considered liveable?We Answered:you can't occupy a home until the final inspection has been made and that will...

    Solar Power Inverter

    Daniel Said:how do I solar power my camper site?We Answered:We run a full-size refrigerator, lighting for 500 sq. ft, an entertainment center, a microwave, 2 computers, and a phone signal booster amplifier. We have 800 watts of solar panels, a 60 amp charge controller, 10 deep discharge batteries, and a 2.5 kW inverter. A backup generator runs the table saw- which draws too much power for the inverter- and a 75-amp charger if it's been cloudy for 2 days straight. System has been operating for 3 years, no problems. Will be upgrading to 16 batteries and 1.2 kW of panels...

    Solar Power Kits

    Casey Said:Help With a Science Fair Project?We Answered:Check out Edmund's Scientific, they have great science kits for alternative energy. The question of which is better depends on the amount of resources available at the site. If a site is sunny but not windy, solar is more efficient. If it is windy and not very sunny, wind is better. Many people install hybrid systems that have both solar and wind, because generally when there is a lot of one, there is not a lot of the other.Kathleen Said:What is the best kind of motor to use for a...

    Solar Power Panel

    Virginia Said:If you could collect 60watts of solar power from a solar panel that was getting its power?We Answered:If you could . The sad fact: this is impossible.Bill Said:How can you power a television with a solar panel?We Answered:The newer LCD TV's have a line-switching power supply. If you look on the back, and it says something like "100 - 250 VAC" as the input, that's a sure sign that it's a line switcher. Generally, you can hook up such a TV to a DC voltage straight from a solar panel, and it will work. The trouble is,...

    Solar Power Panels

    Yolanda Said:Can i use solar panels to power my air conditioning system?We Answered:You can use solar to power anything you want. Right now wind power is more efficient and probably less costly. But if you wanna do panels here is some info. A window unit uses about 1440 watts at the max, so you would need a solar array that would be able to supply 1440 watts. Good source of solar panels, http://wholesalesolar.com/solar-panels.htmlMathew Said:how many watts of solar power panels do i need to run a fridge ,tv,computer,and satellite,dishWe Answered:Read on the back of each device the wattage they use...

    Solar Power Plant

    Lori Said:What's the difference between a solar plant and a concentrating solar thermal power plant?We Answered:Regular solar uses Photovoltaic cells which convert the suns energy into electricity fairly directly. Concentrating solar uses mirrors to focus sunlight (like a magnifying glass) onto a medium, usually liquid salt in pipes, which is then used to heat water, generate steam and to power a conventional steam turbine.Jesus Said:How to solicit a professional to orchestrate the design and construction of a solar power plant?We Answered:I think just call the one who can do it like an engineer with the helpof an architectRenee Said:How do I...

    Solar Power Plants

    Leslie Said:What are some postives and negatives about solar power plants?We Answered:Good things: - the sun will continue to provide power for at least another several billion years - solar power generation does not produce any waste like CO2 or radioactive materials Bad things: - solar power is only available during the day. - solar cells are only 10% efficient. This makes solar power stations very large. Inevitable things: - fossil fuel and nucleur materials are non-renewable. - a large amount of CO2 is generated by coal fired power plants. Global warming will cause the sea level to rise due to melting ice sheets at the poles....

    Solar Power Products

    Karen Said:Any good ideas for a new solar powered product?We Answered:If I had an Idea for a solar powered product that could be marketed, I would already have patented it........

    Solar Power Solar Cells

    Bob Said:What are some things that are made of Solar cells?We Answered:Silicon wafer based solar cells Metamorphic Multijunction Solar Cell Polymer processing Nanoparticle processing Transparent conductors Silicon wafer based solar cells Infrared solar cells UV Solar cells 3-D solar cells Antireflective and all-angle coating Metamaterials Photovoltaic thermal hybrid Dye-sensitized solar cellWillie Said:how could i power my house lights...

    Solar Power Solar Panels

    Harvey Said:Solar power, number of panels needed?We Answered:You seem to be confusing volts and watts, so let's review some definitions: A 'volt' is a unit electrical "pressure". It has its uses but it's a minor player here. In this context, it should be used to see that the parts all match up. And a 26.6 volt panel doesn't sound like a match to a 12 volt inverter! As you probably well know, you don't try to power a 6 volt anything with a 12v battery. You can damage it. Make sure the inverter can handle the voltage of the panels. Buy...

    Solar Power Station

    Jose Said:Can a solar power station be tethered in space to collect the suns energy and sent down to the earth to be use?We Answered:It could be, but it is much cheaper to put Solar collectors on Earth.Hilda Said:Visit to Sevilla Solar Power Station?We Answered:Hey. In this article there are some links to the spanish solar stations plants, where u get all the contact information. I hope it helps you: http://biotechtouch.blogspot.com/search/…Edith Said:would a solar power station be commercially viable in ireland?We Answered:it wouldJulia Said:How much land would a solar powered power station supplying energy to a small city take up?We Answered:Average...

    Solar Power System

    Lance Said:What type of solar power system would I need?We Answered:2500 kwh/month is an average consumption of 3.5 kilowatts. (2500 divided by the number of hours in a month (24*30)) 3.5 kilowatts is 3500 watts. If you only run 9 out of 24 hours then you would need (24/9)*3500 watts. Which is 9333 watts. This site lists solar panels: http://www.wholesalesolar.com/solar-pane… As you can see a 210 watt panel sells for $970. So you would need 9333/210 of these panels. Or 44 of these panels at a total cost of $970 * 44. or $42,680.00 You might get the panels cheaper somewhere. This wattage data on the panels is also probably peak output. You...

    Solar Power Technology

    Dan Said:solar power and current technology?We Answered:i think with the current technology we can produce a very powerful solar panel but for some reason they don't may affect electric companies so still its the sameSally Said:Solar Power?We Answered:Spain is making big mirror arrays to boil water and make electricity from the steam. They're huge, out in the desert (critters probably love the shade too) and supply many many thousands of homes with juice. Solar panels pay for themselves in a few years easily, if you're not living under total cloud cover.Andy Said:what is the latest technology avaliable for solar power?We Answered:Unfortunately,...

    Solar Powered Cell Phone

    Christopher Said:I need an idea for a simple energy conservative invention model.?We Answered:How about a wind up cell phoneAaron Said:How do I set up a wireless cell site on solar so I can have a live webcam of some elk at our ranch?We Answered:smartScouter game camera - cabellas wireless cellular phone setupLaura Said:why don't cell phones have a solar power?We Answered:Samsung has launched it’s first solar powered cell phone. It is made from recycled material. We can say it is the first green phone. You can charge any phone with solar chargers. Many chargers have adapters that can charge your pda,...

    Solar Powered Cell Phones

    Kristina Said:Solar powered cell phones are now available in China Are there any plans for any in America any time soon?We Answered:Not surprising! the rest of the world is ahead in technology. It will take years to come to america.Megan Said:Why the hell dont they make solar powered cell phones ?We Answered:They do, or at least will. Integration is coming. To answer another poster's question, solar power cells work by collecting energy into the cell itself and distributing it over time, like a battery. So you could use it at night. If you think in broad terms, the sun is...

    Solar Powered Cells

    Terrence Said:What is the best way to charge solar powered garden lanterns quickly?We Answered:Any form of bright light will do, but sunlight, because it is so bright, works best. The three day initial charge is needed only for the first time, if at all, and after that you can simply recharge them during the day and recharge them at night. Another thing to try would be this: your typical solar garden lantern has two rechargeable AA cells. Try replacing these with alkaline batteries (take note of polarity), and the lanterns should work. These cells can be...

    Solar Pv Systems

    Calvin Said:Help with a stellar mass (astronomy) question?We Answered:The masses of the two stars are equal because the amplitudes of their doppler shifts are equal. v = 60000 m/s P = 270 days = 2.333e7 sec v = 2?R / P R = vP / (2?) R = 2.228e11 meters M = M? = M? M = 2?²R³/(GP²) G = 6.674e-11 m³ kg?¹ sec?² M = 6.01e30 kg M = 3 solar masses Each of the stars has three times the mass of the sun....

    Solar Roof Panels

    Wayne Said:Solar Roof Panels?We Answered:Yes I have a system and it is performing better than estimated. I have a 3.74kwdc system that produces about 35 kwh per day in the summer and 5-10 kwh per day in the winter, even on cloudy short days I usually get a little electricity. The system was estimated to produce about 1/3 of my annual energy buy it is well over 50%, we'll have to see where I am after a full year, it was producing 75% of my electricity in the summer. The system cost $26K, I got a $10K rebate, so my...

    Solar Solar Panels

    Matthew Said:What would be the life span of solar panels in space?We Answered:From my pov, it will be forever unless its being dmg by other effects or element in space etc like rocks, heat, flares and etc. Depend the solar panel is able to adapt in the the different region of the solar system. But you ofc have to modify it for it to be use in space and what kind of possibility it will face...

    Solar Voltaic Cells

    Jim Said:Solar PVC dedicated for swamp cooler only?We Answered:cover your house with tinfoil firstJulie Said:what is the average power density for solar photo voltaic cells and what are their costs?We Answered:Solar photo voltaic cells range in power from a few Milli-watts to as high as 330 watts per panel. Typical voltages range from about 55-58 volts DC down to about 16 volts, open circuit. By open circuit, the panel is not under a load of some kind.Jerome Said:Happy FOURTH! Ive been saving great questions for 2day. ? Since Solar-voltaic cells wk. in the light, @night?We Answered:Sorry, the amount of EM...

    Solar Water Heating

    Everett Said:how many houses in uk do have solar water heating system?We Answered:Ask Govt. statistical Dept to get the correct number of the houses which use solar water heating.Jared Said:Solar water heating tips?We Answered:the metal is irrelevant. The paint needs to be black, though. Flat black is even better. I suggest that you can go to a Salvation Army and find coils for cheap.Yvonne Said:I cant afford a new solar water heater, How is the recently advertised i-HOT water heating services?We Answered:There are 6 ways to heat hot water: A coil in an existing boiler A separate hot water...

    Solder Solar Cells

    Dwayne Said:Has anyone soldered solar cells?We Answered:It sounds like you are heating the solder, not the metal that you want to solder together. The solder is not sticking because the metal is cold. Hold the iron on the solar panel tab and the wire - let it get hot. Once it is hot enough, touch the solder to the wire, not the soldering iron. The solder should flow and bond after you remove the iron. Also, make sure the tip of your iron is clean. Oxidation which typically forms on soldering irons greatly reduces the temperature....

    Soldering Solar Cells

    Jean Said:soldering tabs to solar panels?We Answered:There are a variety of solar panel manufacturers with different designs. That makes this a broad question...I would contact the manufacturer by phone or look them up online. They may have a helpful online resource for you. Good luck!...

    Spray On Solar Cells

    Ivan Said:Backpacking UK (Equipment Check)?We Answered:mace and pepper spray are illegal here and will get you deservedly in trouble. Possibly even straight back on the plane. I am assuming that you do realise how far Edinburgh is from London, and that while this isn't a very violent country hitchhiking is not a good idea. I would never pick up international tourists anyway, people who can afford plane tickets can afford bus tickets. The amount of luggage you two are bringing will also put people off giving you a lift. You can evidently afford to drink in London so buy a bus ticket;...

    Tabbed Solar Cells

    Kenneth Said:QUESTION ABOUT SOLAR CELLS!!!!!!!!!!!!!!!!!!!!!!!!!!<< <<<?We Answered:now you will understand Caveat emptor. If you want economy, you will have to pay for it....

    The Solar Cell

    Linda Said:Why, when you first connect a solar cell to a watt meter it first spikes and then continuously falls?We Answered:Solar cells operate under the so-called photo-electric effect. Here the momenta of photons strike bound electrons of photo electric material and that causes those electrons to become free electrons. Free electrons are the ones that create the current in your wattmeter. Before you hook up the wattmeter, the solar panel is an open circuit; so those free electrons build up in the panels. When you hook on the meter, that closes the circuit and a current of free...

    The Solar Cells

    Mario Said:How much electricity can our best solar cells generate? Can it be stored?We Answered:1 photo cell generates nearly 2 watts.we can use panel of photocells to produce electricity req. it can be stored in dry cells.Robert Said:how many solar cells would it take to light a 4 watt 12 volt bulb?We Answered:You need to put in series to get voltage and then the same amount in parallel until you get the current needed....

    The Solar Energy

    Duane Said:Can Solar Energy Be Implemented In an often Dark, Rainy Area?We Answered:Germany is leading the world with the amount of PV solar being built. Much of this averages a very few hours per day of power generation. So yes it can be done. The investment may take longer to pay for itself but it works....

    Thin Film Solar Cell

    Sara Said:what are the material properties of cadmium telluride?We Answered:Ask wiki: http://en.wikipedia.org/wiki/Cadmium_tel… Or else go ask in chemistry.Kent Said:thin film physics question?We Answered:The formula t=(m+1/2)lambda seem right. The light you see in air is 475nm, but the wavelength of light in the silicon thin film is shorter by lamdba/4.5. You want the thickness of the film to correspond to 1/2 multiples of the wavelength WITHIN the film. So use that new wavelength and the formula. Different thicknesses can be found by using different m's: m=0, 1, 2....

    Thin Film Solar Cells

    Eduardo Said:what are the material properties of micro-crystalline silicon?We Answered:Microcrystalline silicon–germanium (?c-Si1?xGex:H) alloy films have been grown by 100-MHz glow-discharge of a SiH4/GeH4/H2 gas mixture. Alloys over a full range of compositions were prepared to gain a comprehensive understanding of their growth and material properties. With increasing GeH4 concentration in the gas-phase, we observed a preferential Ge incorporation behavior in the solid. Growth rate studies revealed that the Ge incorporation efficiency from source gas to solid is about five times greater than for Si at growth temperature of 200 °C, which accounts for the variation of alloy composition. With increasing...

    Thin Solar Panel

    Hector Said:is using Acetate rolls bad in a solar panel?We Answered:Acetate does not have good heat characteristics. You can get acrylic sheet thinner than the usual double weight thickness, but it too gets soft when exposed to modest heat. Polycarbonate/Lexan is a better choice if weight is a consideration because it is stiffer than acrylic for the same thickness. Otherwise consider single weight glass. That is only about 2 mm thick, and these you can get out of a picture frame from some mass market outlet's preframed pictures even quite cheaply or even from a picture framing shop....

    Thin Solar Panels

    Naomi Said:Were can I get some thin strips of metal that I can screw onto the roof to hold a pipe?We Answered:Any hardware store should have what you are looking for. However, I do not recommend screwing anything into a sheet metal roof with out proper flashing. Caulking, though it is widely excepted as a waterproofing agent, tends to break down faster then the lifetime of any roof. I assume you have a standing seam roof? My suggestion would be to clamp the pipes onto the seams instead of creating any penetrations in the roof. Best of luck, RickEric Said:Can I Make...

    Tio2 Solar Cells

    Nelson Said:What does it mean by "density of light"?We Answered:density of light sounds like intensity which sounds like Watts. Energy of light is solely in terms of wavelength or color....

    Types Of Solar Cell

    Nina Said:What will be the maximum power generated, in watt, with the illumination?We Answered:read the following section of this web page it nicely describes your exact problem details... email me if you still cant get it @ johnrainwater@yahoo.com good luck!...

    Types Of Solar Cells

    Frank Said:What type of soldering gun should I use to solder solar cells?We Answered:Without knowing the type of cells and the types of leads, this question cannot be answered. However as a professional I like my iron really hot. Then by being able to solder joints fast, the overall heat load a part gets is lower. I could do the job with any of these irons or guns.Edna Said:Physics - Solar Power 'How it works'?We Answered:I think everything you need is here: http://en.wikipedia.org/wiki/Solar_cell Learn to love wikipedia.Tyrone Said:what type of solar rays are absorbed by SOLAR CELLS?We Answered:Visible rays of light, solar panels...

    Types Of Solar Panels

    Tracy Said:i want to use solar energy in my workshop which has some welding machines.what type of solar panels do i use?We Answered:You want a grid tie solar power system being you already have the grid or you could not use the welders right now. The idea is back feed the grid. You would want to balance out your power usage with solar. You do not have to be able to run every thing in your shop with solar. You run everything from the local utility and allow the solar no matter how large or small to offset the power...

    Types Solar Cells

    Nathaniel Said:Which type of solar cells are the best(Amorphous, Polycrystalline, or Single-cell) and why?We Answered:As of now, single-cell seems to be the most efficient.Yolanda Said:Research question: Is the mean solar cell output the same for all cell types? (please see details)?We Answered:mean is the sum of all values of each test divided by the number of tests therefore A:(123 + 121 + 123 + 124+ 125+127) / 6 = 128 5/6 Same calc for B: Ans is : 123 C ans= 127 5/6 Therefore the mean of each test is not the same...

    Use Of Solar Energy

    Roberta Said:Pl. send any social org.Who can privide fin. support for my project of use of solar energy in automobile?We Answered:Our company took one of those 12 volt John Deere Gator toys that kids ride on, and mounted solar panels on the roof, and it would have to sit in the sun two solid days to charge the battery to where the kid could actually drive it. It's only a working idea that they take to schools for energy fairs, and it's only to inspire. So I know if you are looking to actually power a real car, not even a...

    Used Solar Cell

    Brandon Said:what kind of solar cell(diffrent quality) used for solar panle made?We Answered:Please add information to the question. Need more input. Ambiguous. Wingman...

    Used Solar Cells

    Eugene Said:what do we use solar cells for?We Answered:Solar cells are most useful when you either have lots of sunshine, or when the device being powered can't be connected to an electrical outlet. Solar cells on calculators are common. They don't need a lot of power because they just have a tiny liquid crystal screen, so a solar cell can really extend the life of a battery. You may see emergency phones by the side of the highway that have solar cells mounted on the top of them. This provides enough power to charge the phone, which isn't used very...

    Used Solar Panels

    Kristina Said:Can someone explain how to use solar panels?We Answered:www.youtube.com haha you've probably heard of youtube they have alot of videos on solar power (: hope i helpeddd (:...

    Uses Of Solar Cells

    Melvin Said:Would it be possible to line the inside of a pool with solar cells?We Answered:You probably could, but from an efficiency point of view it might be silly to keep your solar panels at the bottom of a 10' hole, since that will shorten the number of hours per day of sun they get. You'd probably also have to be careful with the connections, to make sure the water doesn't get behind the panels and cause a short. Update: I don't think the water would magnify the light. I'm saying this only because I scuba dive, and the deeper...

    Water Heater Solar Panel

    Maurice Said:Solar powered water heater?We Answered:If you want to heat water with solar, don't mess with making electric and then converting it back to heat. just collect the heat directly. a heat collector is much cheaper and easier to make, and it is more efficient for what you want to do since you always loose some when converting to electric and back to heat from electric....

    Water Heater Solar Panels

    Claire Said:How much does a Solar Water Heater cost? Who installs it...a plumber?We Answered:30% Federal Solar Tax Credit Systems starting at only $995 or less .. This is a company i found in search - Installing a Solar Domestic Hot Water (SDHW) System directly reduces your consumption of fossil fuels and eliminates over one ton of Carbon Dioxide emissions each year. A SDHW system takes up little roof space and can be installed in just weeks! Essentially, a Solar Domestic Hot Water System turns your home’s existing water heater into a backup system and meets up to 75% of your family’s hot water...

    What Are Solar Cells Made Of

    Jerome Said:What is materials are made from (which substances of earth)?We Answered:Glass is made from sand (its the silica in the sand). Solar Cells *i think* are also made of silica. So, if your country has a lot of sand (desert or beaches) that would be a start. Gold occurs where gold occurs. Its either there or it isn't; the past geologic events would have had to do something to cause gold to be deposited in an area. The only way to find out is to look. Also, areas in & around volcanoes can be sources of many...

    What Are Solar Cells

    Peggy Said:What wavelength of light do solar cells most efficiently transfer into electricity?We Answered:Certainly the higher frequencies contain more energy. But photons with energy above the band gap energy of silicon are wasted. wikipedia: Photogeneration of charge carriers When a photon hits a piece of silicon, one of three things can happen: 1. the photon can pass straight through the silicon — this (generally) happens for lower energy photons, 2. the photon can reflect off the surface, 3. the photon can be absorbed by the silicon, if the photon energy is higher than the silicon band gap value. This generates an electron-hole pair and sometimes...

    What Is A Solar Cell

    Steve Said:How does a solar cell generate a potential difference?We Answered:"Generate a potential difference" is asking you to determine HOW it does the causing of a potential difference. I don't think this is a reasonable eigth grade question, because it is very complicated semiconductor phenomena that make the photovoltaic cells function. "photons are charged are they?" No...photons are uncharged. If they were charged, then protons and electrons would be able to loose their charges and swap charges...and that does not happen. Photons carry energy. That energy exites the electrons to change their energy levels in the doped semiconductor cells. The exact...

    What Is Solar Cell

    Judy Said:What is the semiconductor in the nanocrystalline solar cell?We Answered:Generally, siliconMathew Said:What material do you need for doing a solar cell?We Answered:1st generation of solar cells are using silicon, like silicon wafers. 2nd generation of solar cells are thin-film based which can be CdTe (Cadmium Telluride), CIGS (copper indium gallium selenide) or Amorphous silicon.Colleen Said:What is the Physics symbol for a solar cell?We Answered:go there www.electronicsinfoline.com...

    What Is Solar Cells

    Janet Said:is there really a technology more efficient and cheaper than solar cells? if yes, what is it?We Answered:The inefficiency in solar cells is because they convert from one energy form to another, there are always "losses" when you convert from one form of energy to another. Using energy in its original form is always more efficient. Solar cell designs are becoming more efficient but will always have limitations.Wade Said:Combining old solar cells off calculators and solar lights?We Answered:It should be pretty simple. Use the same analogy of batteries. It you want more volts then connect the negative to the...

    What Is Solar Power

    Grace Said:I want to solar power a 4x8 sign. What do I need to do?We Answered:one solar panel, that will put out 45 watts [d/c] will run you around $359.00 if you have 110 volt bulbs you will have to have a inverter, and a storage battery, the cost will be out of sight,Terrance Said:Garden Pond Question - Is there a way to solar power my filter?We Answered:I don't know of any need for a powered filter... usually, as far as I know, the pump pushes the water thru the filter... so if it's strong enuff,...

    Where Can I Buy Solar Cells

    Dale Said:where can i buy solar cells in malaysia?We Answered:7-11...

    Where To Buy Solar Cells

    Jacqueline Said:i need to buy ito coated glass for solar cell. does any one know where i can buy it?We Answered:It's produced by some of the big flat panel glass makers, like NSG. You probably need to be a serious solar cell manufacturer and sign a long-term supply contract to secure a good price - or being served at all. It might be easier (and cheaper in the long run) to invest in your own coating eqipment.Gertrude Said:where can I buy a DC/AC solar cell inverter with an input of 45 v to 110 v output?We Answered:you need a battery...

    Where To Get Solar Cells

    Pedro Said:where can i get solar cell in saudi arab,riyadh ?We Answered:riyadh or jeddah...

    Why Solar Panels

    Florence Said:why solar panels are usually rectangular in shape?We Answered:U can make solar solar panel in any shape But they are usually Rectangular in shape bec 1. To make cutoff wastage very less. 2. To make more power generator in less area 3. Finally To make more and more distance between two poles in limit place whereas handling also must be suitable. The more distance between two poles generating in same body give less wastages of generating powers. actually electric powers also waste in form of magnetic & heat energy. To less magnectic power it is better to be rectuangular than rather any other...

    Working Of Solar Cell

    Deborah Said:I'm working my cell phone and have come up against a problem dealing with the four contact on the battery?We Answered:This question could not possibly be answered, because it depends on the phone/battery. One of the leads is most likely a positive, the other a negative. And the remaining leads are probably for charging. Usually they will indicate the +, but that is it. You will have to do some reverse engineering with a meter and try to figure it out.Katie Said:How to make an object that can work on a solar cell?We Answered:i think when you head to...