Vertical solar panels have a different energy production profile. Compared to conventional monofacial solar panels, typical factors influencing energy yield have a different impact on the energy production, such as:
For conventional systems, the ground reflectance (albedo) factor would not be considered important for the energy yield.
The energy yield of vertically mounted solar panels, however, is highly influenced by the albedo of the underlying surface. By testing the energy yield of pilot installations with different roofing materials, an estimation of the albedo weighting can be done.