Solar Power

Topics: Solar cell, Photovoltaics, Solar power Pages: 4 (1009 words) Published: February 18, 2013
Solar power

Solar power is the conversion of sunlight into electricity, either directly using photovoltaics (PV), or indirectly using concentrated solar power (CSP). Concentrated solar power systems use lenses or mirrors and tracking systems to focus a large area of sunlight into a small beam. Photovoltaics convert light into electric current using the photoelectric effect. Solar power cells convert sunlight into electricity, using the energy of speeding photons to create an electrical current within a solar panel. Photons are created in the center of the sun by the fusion of atoms. It takes a photon about a million years to work its way to the surface of the sun, but once free it is hurled through space so fast that it reaches earth in just eight minutes - after traveling 93 million miles. This tremendous energy from the sun is abundant, and has been powering the earth for billions of years - feeding plants, redistributing and refreshing water supplies and ultimately creating other forms of energy (such as fossil fuels) that largely power our civilization today. Over the past several decades, scientists have been learning to harness this ancient energy source with more efficiency to do the work of non-renewable fuels - without pollution, noise or radiation, and not subject to economic whims that drive costs higher each year.

India is densely populated and has high solar insolation, an ideal combination for using solar power in India. India is already a leader in wind power generation. Solar power is produced by collecting sunlight and converting it into electricity. This is done by using solar panels, which are large flat panels made up of many individual solar cells. It is most often used in remote locations, although it is becoming more popular in urban areas as well. This page contains articles that explore advances in solar energy technology. Commercial concentrated solar power plants were first developed in the 1980s. The 354 MW SEGS CSP installation...
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