Area-Weighted Irradiance

Given an incident irradiance metric with units of W/m2 for each array, find the weighted average of the irradiance on N DC arrays, each with Mi modules of different area Ai. The area is calculated using the length and width of the modules per the module definition.

Area Weighted Irradiance Algo12
Area Weighted Irradiance Algo13
The same formula can be applied to all irradiance measurements, whether irradiance after shading losses, irradiance after soiling losses, effective irradiance, etc.