Prism Solar Technologies has comes with their new innovation of Solar Panel dubbed as Holographic Planar Concentrator(HPC) that could provide more renewable power at low level isolation.
This newly developed device features a hybrid use unique holographic thin-film coupled with crystalline PV cells. The thin-film strips diffract both direct and reflected energy to the PV cell strips integrated between strips of thin-film. The technique reduces the amount of silicon required to make the same energy. Solar modules made in this way are cheaper because they use 50-72% less silicon to make the same energy. Take a look at this PDF it’s very informative.
When mounted on a white roof, the bi-facial modules can generate as much as 30% more energy, because the thin-film picks up from the back surface as well. It can receive light both directions. With the thin-film bouncing irradiance back, the PV is getting two and a half to three and a half times more light, even when the sun is at low angles.
[ Via cleantechnica, hardwaresphere ]
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