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PostPosted: Fri Feb 21, 2020 5:41 pm 

Joined: Tue Feb 11, 2020 3:51 pm
Posts: 1
How does PVsyst calculate its performance ratio with Bifacial modules?
Is the Irradiance just the front side that it uses for its performance ratio calculation?
Or does it take into account the rear side Irradiance?
I can't seem to find anything useful on this.


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PostPosted: Sun Mar 22, 2020 2:08 pm 

Joined: Tue Mar 27, 2018 6:23 am
Posts: 6
As I understand, PVSyst 6.86 uses only front side irradiation for calculating PR.
This is evident when rear side irradiation is significant which results in >100% PR.
Try running bifacial simulation with E-W configuration.
Hope it helps.


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