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Formula used for calculating Isc BNPI current rating
The current rating for bifacial panels is calculated as follows:
Isc BNPI = Isc STC *(1+0.135*BF), where BF is the bifaciality factor
Applying elevation from roof/surface
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The bifacial gain is displayed in the Derating table of the Reports page (Designer view) as below:
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Formula used for calculating Isc BNPI current rating
If the Isc BNPI is not stated on the module datasheet, the short-circuit current rating for bifacial panels is calculated as follows:
Isc BNPI = Isc STC *(1+0.135*BF), where BF is the bifaciality factor