Clarification on Albedo Definition in “Project Settings” vs “Bifacial System”

[Irakli Bezhuashvili]

Dear PVsyst Team,

I would appreciate your clarification regarding the definition and use of the Albedo parameter in PVsyst.

In the software, the Albedo value appears in two different locations:

1. Project Settings → Site → Albedo

2. System → Bifacial System → Albedo

Could you please clarify:

• What is the functional difference between these two Albedo inputs?

• In bifacial simulations, should both values always be identical for consistency?

kind regards,

Irakli