The Photovoltaic Cells Spectral Response and Photocurrent Seasonal Variations

The seasonal variations of solar photovoltaic cells photocurrent under cloudless conditions are analyzed. This analysis is done by using models of the absorption of solar radiation in the atmosphere and the spectral response of various types of solar cells. The problems of determining the atmospheric model parameters for calculating seasonal variations in absorption are indicated. A simple model that describes the effects of degradation and regeneration of photosensitive material is proposed to describe peculiarities of seasonal variations in the photocurrent of amorphous silicon cells.