PV Gap

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 for several days.  The 1500 W inverter would probably be able to run more or less continuously.

Last, this is a fairly expensive system:  about $22 per rated PV watt (more per delivered watt).  You're paying a lot for the convenience of the built-in cart.  If you don't mind a little construction, you could bolt an inverter and a battery box to a hardware-store dolly and get a unit built to your own specs for much cheaper.

Annie Said:

What is a good solar generator to power a computer, TV, and other small items?

We Answered:

Let's see, a desktop computer typycally has a 500W power supply at 65% efficiency, a typical CRT TV uses 300W so to run those two, you should provide at least (500)/0.65+300 or 1,070 W of photovoltaic cells. The cells are rated by maximum power output in full sunlight so assume you'r only get 63% so that means you'll want 1700W solar panels. At $10 a watt installed, you're looking at $17,000 worth of photovoltaics. Of course you can reduce this amount by taking into account how much of the day you actually use the computer, and TV for, selling the power to the grid when you don't need it and buying it back at the higher power rate when you do but basically, it's going to be expensive.

Becky Said:

solar powered generator help!?

We Answered:

Wow, this sounds like fun. I used to work with Solar projects for EPRI and NASA, so I can give you a few tips:

1. 5 watts is a pretty small panel. You don't want to put it on a large battery (like a car or boat battery), or the battery's tendency to discharge will happen faster than the cell can keep it charged! A battery for a kid's scooter or car is probably about right (5 to 10 amp hr rating).

2. Even though your panel can deliver 5 watts peak, the actual power it will delivers varies with it's angle to the sun, the weather, how clean the face is, and the length of the day. It's not unusual to average only 1/5 to 1/7 of the output of the cell per day.
So, you can expect to get about 24 watt-hrs to 17 watt-hrs per day. That's about 2 to 1.4 amp hours.

3. The batteries don't charge perfectly, and they lose some charge just sitting around. Count on getting about 80% of the energy your putting in. So, count on having 1.6 to 1.12 amp hrs to power your gadgets for every day of charging.

You can run a small radio just about indefinitely on this, or a small brushless fan (about .1amp for about 11-16 hours), a small fluorescent lamp for maybe 4 hours, or even a small TV for maybe an hour.

Have Fun!
.

Olga Said:

Could a solar powered UV generator completely reverse AGW?

We Answered:

since the oceans are absorbing 95% of the energy, i don't think so.

clearly if you could cover 1/2 the oceans with mirrors, you'd be able to reverse global warming.
but you'd create an environmental disaster in the process.
we've already reduced fish stocks to critical levels in much of the ocean.
depriving the remaining ocean of sunlight would reduce algae and all of the fish that depend on it.

so the 2 problems are,
1. scale, it really is not scalable to the size needed, and
2. location, it doesn't lend itself to being deployed where the problem is most serious.

Crystal Said:

how can you make a wind powered generator with solar panels as back up?

We Answered:

Hi, This is a good question and I have your answer, This is a very simple thing to do you can buy all your materials in any store as simple as using a 6" PVC Tube to make the blades for your wind generator. E-bay has a lot of DC Generators that are good to use as a wind generator. I bought a guide named earth4energy and they show how to make a wind generator in 3 simple steps. You can find this guide at : www.greenproductsolutionpr.com and also a lot of information about renewable energy.

Steps to make a wind generator :

Definitions:


Generator:
This wind turbine transforms wind power into electricity, with the use of an A DC Motor that generates the power to spin the blades,
Options include:
? Electric lawn mower motors that have been recycled.
? All motors made by Ametek.
? Alternators with a permanent magnet (car alternators).


In order to find a DC motor you can check eBay, or look for inexpensive power tools. Drills, screwdrivers and other tools are a great way to find inexpensive DC motors although they do not generate much energy they are great for smaller projects. A great DC motor/generator is the Ametek 30VDC as pictured below. I purchased this DC motor for about $50 from ebay.

http://www.earth4energy.com/recommends/e…

Blades:

building PVC blades from an old pipe please watch our instruction video from the members page.
? Acquire a 6-inch wide, 24-inch long PVC pipe.
? Quarter the piece of pipe around its circumference, cutting it lengthwise into four pieces (diagram on the next page).


This is only a preview of the step-step guide that they include in their package for more information please visit : www.greenproductsolutionpr.com

I can share with you more information because is a copyright information