PV Gap

Sean Said:

SOLAR ENERGY OVEN FACTS BIG HELP 10 POINTS!?

We Answered:

please answer my question! http://answers.yahoo.com/question/index?…

Annette Said:

Facts about solar energy? ASAP?

We Answered:

On a clear day the energy of the sun that reaches the surface of the earth is about 1000 watts per square meter, or about 100 watts per square foot.

At best commercially available solar panels can only harvest about 20% of that.
Even still, that is more than most plants capture.

Scott Said:

can you give me five facts on solar energy?

We Answered:

Solar energy comes from sun and is free.
It is non-polluting source of energy.
Solar water heaters make the best use of suns energy.
PhotoVoltaic (PV) cells convert sunlight to electricity.
Solar energy can be used for cooking (Solar cookers)
The amount of solar energy impacting the surface of earth is 1000 watts per square meter, which is about 32.8 million MW every second on the Indian land mass. A large part of the incident heat is reflected to the outer space or radiated back to space.

Jaime Said:

anyone know facts on solar energy?

We Answered:

Solar radiation, along with secondary solar resources such as wind and tidal power or wave power, gravity driven river flows and biomass, accounts for most of the available renewable energy on Earth. Once this energy is captured in the form of heat or electricity, it is like any other energy source and can be put to all the uses that human ingenuity can devise. solar energy can heat up rooms, water, and dry out things for you. it can power just about anything that uses electricity. you can store the energy for later use, or seasonal use.Nellis Solar Power Plant, the largest photovoltaic power plant in North America. about half of the sun's rays actually make it to earth.

Roy Said:

facts about solar energy 5 if posibale?

We Answered:

Solar Energy
* inexpensive (free, only maintenance costs of the device)
* does not work well on cloudy days or days when the sprayers fly, or does not work at all (needs electric back up)
* Active solar: e.g. the heat is forced down from the ceiling, gathered by voltaic cells (solar panels).
* Passive solar, a wall within a glass enclosure is painted black and absorbs the heat (green house effect maximized). Warm air can blow through a hole in the upper black wall into the room behind the black wall.
* Solar energy prevents pollution.
* Solar energy does not drain the oil reserves of the earth.
* There are solar warm water heaters, heaters and cookers.
* Solar cookers and passive solar can be self-made.
* Solar energy is used simply by opening the curtains and letting the sun shine on tile floor.

Let the sun shine and the skies again be blue!
Cordially, India.Magica