byfacial system definition for fixed panels

[C. Amorevole]

In byfacial system definition I need to project a bifacial model for my fixed structure installation: I know that it could be an unusual idea, but I need to compare my FV tracker implant to a FV fixed implant with same characteristics (same module, byfacial model, ecc). I need to do this in order to verify the improvement of a new and innovative PV system respect to a standard PV project (respecting the guidelines of the italian ministry of the ecological transition). 
I noticed that a bifacial model is not compatible with the fixed planes in PVsyst. Is that true or can someone explain me a way to input this feature?

Thank you for the help

[Michele Oliosi]

6 hours ago, C. Amorevole said:

I noticed that a bifacial model is not compatible with the fixed planes in PVsyst.

In fact it is compatible, as long as there is only one nominal orientation, that all tables have the same width, and that the pitch between tables is fairly regular.

You can check this help page for more details: https://www.pvsyst.com/help/bifacial-conditions.htm