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Ambient energy stands ready to serve

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docdivakar
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re: Ambient energy stands ready to serve
docdivakar   7/26/2011 5:09:26 PM
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@Infinergia: actually the number is in the range but not more than 150mw/cm^2, so it is NOT really in hundreds! The Solar irradiance on the upper reach of the atmosphere is about 1400W/m^2. The atmospheric attenuation reduces this to about 1000W/m^2; in fact, Telcordia specs out ~968W/m^2 to design for out door communication equipment. Most of the solar insolation is in the IR band. So this would make PV modules working with a max theoretical efficiency about 300W/m^2 (The Shockley-Queisser limit for the efficiency of a single-junction solar cell under unconcentrated sunlight is about 33%). You are right, the best ones have about 200W/m^2. Dr. MP Divakar

Infinergia
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re: Ambient energy stands ready to serve
Infinergia   7/20/2011 3:33:27 PM
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I'm a bit suprised by the table 2 indicating solar cell can turn hundreds of mW/cm2. To me best for pv panel is 20 mW/cm2! (i.e. best sunpower panels around 200W/m2).

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