U.S. Department of Energy - Energy Efficiency and Renewable Energy
Energy 101: Solar PV
Enough energy from the sun hits the earth every hour to power the planet for a year—and solar photovoltaic (PV) systems are a clean, cost-effective way to harness that power for homes and businesses. PV systems generate power without pollution as they convert the sun's energy into electricity, and recent advancements have greatly improved their efficiency and electrical output. This video shows the basics of how a PV panel converts light radiated from the sun into usable power, whether on the electric grid or off—and without emissions or the use of fossil fuels.
For more information on solar technologies from the Office of Energy Efficiency and Renewable Energy, visit the Solar Energy Technologies Office website.