nitinpanwar Posted January 27, 2019 Share Posted January 27, 2019 Why the back side and front side output power of a Bifacial module are different while the front and back side both are illuminated with 1000W/m2 at STC condition ? Link to comment Share on other sites More sharing options...
Bruno Wittmer Posted January 28, 2019 Share Posted January 28, 2019 Bifacial PV cells are not manufactured in a completely symmetrical way. The doping, metallization and passivation/texturing is different for both sides. This leads to different optical and electrical properties for the two sides, and thus different response for similar irradiance and temperature conditions. This difference is expressed by the bifaciality factor, which is defined as the ratio between front and rear side response at same conditions. Typically, the bifaciality factor ranges between 70% and 95%. Link to comment Share on other sites More sharing options...
nitinpanwar Posted February 19, 2019 Author Share Posted February 19, 2019 Thanks Bruno Wittmer for sharing your view. :) Link to comment Share on other sites More sharing options...
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