Backsheets are used in solar PV panels to protect the panels from moisture and UV. They also electrically insulate the panels, improving performance. High quality backsheets improve the lifespan and output of solar panels, and Biosolar’s products aim to do so to at a high standard, cheaply and using sustainable materials. The new Biobacksheet produced by Biosolar is white rather than translucent as their previous model was. This development was partly for cosmetic preferences of manufacturers, but also for the reflectivity which can be used to improve the performance of PV units.
BioSolar’s Chief Executive Officer , Dr. David Lee:
“While meeting with PV module manufacturers in recent months, we encountered an overwhelming preference for a bright-white colored BioBacksheet in lieu of the existing translucent design. For cosmetic reasons, as well as for its high-reflectivity which improves cell efficiency, manufacturers prefer a bright-white colored backsheet. We have successfully modified our product formulation to meet this request without compromising our industry-leading product characteristics. Subsequent testing demonstrated that the improved product meets all industry standards, as well as customer and BioSolar internal product requirements. The new bright-white BioBacksheet opens up a wider pool of potential customers and will be sold as a standard product.”
The next step for Biosolar is to ensure that the new sheets meet the same industry standards as the previous model; for sale in the US and EU they must be registered with the UL and IEC for the benefit of panel manufacturers, who then require certification for the finished panels. This process of recertification is currently underway, and appears to be moving forward unhindered thanks to extensive testing beforehand on the part of Biosolar.
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