Influence of Temperature on Conversion Efficiency of a Solar Module Working in Photovoltaic PV/T Integrated System

Abstract

Experiments are conducted on a photovoltaic single-crystalline silicon solar module, integrated with a flat heat collector. It has been shown that the performance of the module degrades with rising temperature about 0.08%/K. Several advantages associated with water cooling of the module from 60°C to 25°C have been observed: the output power increase of 23%, the open circuit voltage increase of 18% and PV conversion efficiency increase of 3%. The energetic conversion efficiency of the PV/T integrated system is 13% higher than the efficiency of a separate heat collector