The average amount of the sun’s radiation that penetrates the atmosphere and reaches the earth is 51% of the total incoming energy…
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Solar cell prices have come down by a factor of 100 over the last 35 years; and down by a factor of 10 over the last 15 years
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Photovoltaics is the direct conversion of light into electricity at the atomic level. Some materials exhibit a property known as the photoelectric effect that causes them to absorb photons of light and release electrons.
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Solar energy is not only sustainable, it is renewable and this means that we will never run out of it. It is about as natural a source of power as it is possible to generate electricity.
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Solar power is energy from the sun and without its presence all life on earth would end. Solar energy has been looked upon as a serious source of energy for many years because of the vast amounts of energy that are made freely available.
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