Space solar cells and terrestrial solar cells need a diferent method to measure their efficiency to avoid perplexity. In the absence of atmosphere in space, the solar spectrum is unfiltered while on the Earth, the atmosphere exists which filters the sunlight entering the Earth's atmosphere, thus changing it. To measure the filteration and its effects a system had been devised. The impact of filteration ranges from Air Mass 0 in the soace to about Air Mass 1.5 on the Earth. Efficiency of the devise can be found by takinkg spectrum differences together with quantum efficiency of the solar panel. For instance, a solar panel in space made from Silicon might be 14% efficient at Air Mass 0, whereas being 16% efficient on the Earth at Air Mass 1.5. Terrestrial solar cells are generally more efficient than space solar cells.
Efficiency of the solar panel ranges from 6% (for amorphous Silicon based solar panels) to 40.7% (with multiple junction cells in a research lab) and 42.8% (of assembled hybrid package of multiple dies). Conversion of energy for multicrystalline Silicon solar panel availabe commercially has approximately 14-19% efficiency. The more the solar pcell is effficient, the more it will be costly. For instance, a indium selenide or gallium arsenide multi-junction solar panels are produced in lesser quantity, are 30% efficient and cost 100 times less as compared to 8% efficient amorphous Silicon solar panel produced on large scale, and delivers around four time the electrical power.
There is, however, a method to enhance the solar power. By increasing the solar brilliance, usually solar power generation is increased, having enhanced efficiency up by 15%. Concentrator systems, as they are known, have only got to be cost effective, as a result of the improment in the highly efficient gallium arsenide solar panels. The rise in brilliance is ideally done by the use of concentrating optical instruments. An ideal concentrator system may employ an intensity of light 6-400 times the Sun, resulting in efficiency improvement of a single gallium arsenide cell from 31% to 35% at Air Mass 1.5.
Efficiency of the solar panel ranges from 6% (for amorphous Silicon based solar panels) to 40.7% (with multiple junction cells in a research lab) and 42.8% (of assembled hybrid package of multiple dies). Conversion of energy for multicrystalline Silicon solar panel availabe commercially has approximately 14-19% efficiency. The more the solar pcell is effficient, the more it will be costly. For instance, a indium selenide or gallium arsenide multi-junction solar panels are produced in lesser quantity, are 30% efficient and cost 100 times less as compared to 8% efficient amorphous Silicon solar panel produced on large scale, and delivers around four time the electrical power.
There is, however, a method to enhance the solar power. By increasing the solar brilliance, usually solar power generation is increased, having enhanced efficiency up by 15%. Concentrator systems, as they are known, have only got to be cost effective, as a result of the improment in the highly efficient gallium arsenide solar panels. The rise in brilliance is ideally done by the use of concentrating optical instruments. An ideal concentrator system may employ an intensity of light 6-400 times the Sun, resulting in efficiency improvement of a single gallium arsenide cell from 31% to 35% at Air Mass 1.5.
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