v.ming

Hi PVSyst members, I have a question regarding vertical systems. As of today, the bifacial simulation calculates a ground reflection for the front side of the modules, which is often neglectible but important for vertical systems. So, in cases of wall or facade-mounted vertical modules (which can be monofacial), is there a way to still access this non-neglectible part of the irradiance ? This seems still relevant, event without a bifacial module. Thank you in advance