Thursday, October 16, 2008

solar energy


Solar energy is the light and radiant heat from the sun that influences Earth's climate and weather and sustain life. Solar power is the rate of the solar energy at a point in time ; sometimes it is used as a synonym for solar energy or specifically to refer to electricity generated for solar radiation. Since ancient times solar energy has been harnesses for humans to use through a range of technologies. Solar radiation along with secondary solar resources such as wind and wave power and hydropower and biomass account for most of the available flow of renewable energy on earth.
I think it's a great resource of energy and can reduce heat on Earh.

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