Active optimal optical filtering of wavelengths for increasing the efficiency of photovoltaic modules

Filtering the wavelengths that do not generate electricity and the wavelengths that generate heat more than photonic current would reduce the photovoltaic (PV) module temperature and accordingly enhances its efficiency. In previous work, a wavelength-based thermoelectrical model for PV modules is proposed and experimentally characterized and validated. In this work, the model is used to investigate the effect of active optical filtering on the module temperature and output power. The simulation results show that the optimal active optical filtration of the ultraviolet wavelengths increases the module efficiency by about 1% in some cases.