Photovoltaic Wind [Compatibility Mode] (2).pdf - She had eh Photovoltaics Solar Photovoltaics yel Making Electricity from Sunlight Energy from the Sun

Photovoltaic Wind [Compatibility Mode] (2).pdf - She had eh...

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Photovoltaics Energy & Environment 1 Solar Photovoltaics Making Electricity from Sunlight 2 Energy from the Sun About half the incoming solar energy reaches the Earth's surface. The Earth receives 174 peta-watts (pW) (10 15 watts) of incoming solar radiation at the upper atmosphere. Approximately 30% is reflected back to space while the rest is absorbed by clouds, oceans and land masses. Earth's land surface, oceans and atmosphere absorb solar radiation, and this raises their temperature. Sunlight absorbed by the oceans and land masses keeps the surface at an average temperature of 14 ° C. By photosynthesis, green plants convert solar energy into chemical energy, which produces food, wood and the biomass from which fossil fuels are derived. Dr. Hayel Shehadeh
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Photovoltaics Energy & Environment 2 3 The proton-proton chain. This is the principle fusion reaction in the Sun. Mass, in the form of hydrogen atoms, is converted to energy as described by Einstein's formula: E = mc 2 What kind of fire is burning on the Sun? And what keeps it burning steady? Radiant Energy 4 Dr. Hayel Shehadeh
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