Solar

Electricity produced from the sun is more expensive than that produced using other renewable energy sources; however, current trends suggest that solar energy is becoming more cost effective. Green Power EMC continues to research solar-to-electric power, as evident in our Sun Power for Schools program. Solar thermal and passive solar can be cost effective when used for space heating and water heating, and photovoltaic solar-to-electric power is efficient and can be less expensive in certain applications.

Photovoltaic (PV) technology makes use of the abundant energy in the sun-and has little impact on the environment. Photovoltaics can be used in a wide range of products, from small consumer items to large commercial solar electric systems, according to the U.S. Department of Energy. For example, roof shingles coated with PV cells made of amorphous silicon look like ordinary roofing shingles-but help generate electricity.

How it works:In simplest terms, arrays of photovoltaic cells convert solar rays to electricity. For more detail, visit http://science.howstuffworks.com/solar-cell.htm.

Green Power EMC's Sun Power for Schools program, currently operating in 31 middle and high schools throughout the state, educates students about renewable energy and its impact on the environment while providing energy from the sun.

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2100 East Exchange Place, Tucker, Georgia 30084

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