Monofacial
Module-Cell-Optical (Monofacial)
Compares soiled in-situ module IV data to soiling-corrected cell irradiance, and does not require maintenance
Module-Cell (Monofacial)
Compares soiled in-situ module IV data to clean cell irradiance, and requires manual or automatic washing of a cell
Module-Module
Compares soiled in-situ module IV data to clean in-situ module IV data, and requires manual washing of a module