Bifacial mismatch

[S.Faulkner]

It appears that PVsyst calculates the effective rear mismatch loss by applying the loss (eg 10%) to the rear irradiance BEFORE the bifacial factor is applied, whereas Help says that it is applied after the bifacial factor, ie 10% x GlobBakEn / (GlobBakEn + GlobEff). Actually, from reverse-calculation it looks like it is applied to GlobBak / (GlobBakEn + GlobEff)?

I have only checked this with V6.88, not V7.

See https://forum.pvsyst.com/viewtopic.php?f=25&t=4992#p11241

[kjs55]

@S.Faulkner: See PVsyst Release Notes for v8.0.0 ("Corrections"): https://www.pvsyst.com/help/release-notes/index.html#exec-1--corrections

"Simulation: the bifacial mismatch loss is now proportional to the Bifaciality factor"

[Michele Oliosi]

Indeed !