Solar energy is the cleanest and most abundant renewable energy source available, and the U.S. has some of the richest solar resources in the world. The suns light turns into energy. And when light hits certain materials, energy turns into an electrical current instead. Solar energy in "environment friendly" because it does not require the burning of fossil fuels.
Pros
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Cons
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Renewable
Environmentally Friendly Reduces Electricity Costs Low Maintenance |
Expensive
Requires Space |
There are two main types solar energy systems used toady: Solar Photovoltaics and Solar Thermal Systems.
A solar panel works by allowing photons, or particles of light, to knock electrons free from atoms, generating a flow of electricity. Solar panels actually comprise many, smaller units called photovoltaic cells. (Photovoltaic simply means they convert sunlight into electricity.) Many cells linked together make up a solar panel.
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