Solar technologies capture this radiation and turn it into useful forms of energy. With an estimated 173,000 terawatts of solar energy continuously hitting Earths surface (1), there is more than enough energy to meet the worlds current consumption levels of 15 terawatts per year (2). While every location on Earth receives some sunlight over a year, the amount of solar radiation that reaches any one spot on the Earth’s surface varies. Solar power is the conversion of the suns energy into electricity. Solar radiation is light – also known as electromagnetic radiation – that is emitted by the sun. Department of Energy Solar Energy Technologies Office is driving innovative research and development in these areas. In addition, you can dive deeper into solar energy and learn about how the U.S. This energy can be used to generate electricity or be stored in batteries or thermal storage.īelow, you can find resources and information on the basics of solar radiation, photovoltaic and concentrating solar-thermal power technologies, electrical grid systems integration, and the non-hardware aspects ( soft costs) of solar energy. You can also learn more about how to go solar and the solar energy industry. Solar technologies convert sunlight into electrical energy either through photovoltaic (PV) panels or through mirrors that concentrate solar radiation. The amount of sunlight that strikes the earth's surface in an hour and a half is enough to handle the entire world's energy consumption for a full year.
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