Induced mismatch by shading for BC modules

[Michele]

Hello,

does someone know if it makes sense to decrease the "fraction for electrical effect" percentage (i.e. from 100% to XX%) to take into account the supposed better behavior of BC modules (Longi, Aiko, ...) in terms of electrical mismatch induced by 3D scene shading (for a utility-scale PV plant)?

A manufacturer proposes to set the fraction to 70% according to its investigation and some laboratory tests by TUV, but I'm not sure they can completely trusted.

Did anyone encounter the same issue/doubt?

Does PVsyst team have any suggestion on how to handle this in PVsyst (if possible) and if make sense to set to 70%?

 

Hope to have any feedback.

Kind regards

Michele