Thermal and Performance Analysis of CIGS Modules for Building-Applied PV Systems

This paper presents the performance evaluation of new-generation copper indium gallium selenide (CIGS) photovoltaic (PV) modules in the hot and dry climate of Arizona under different field operating conditions, including the air gap between the module and the rooftop, the presence of thermal insulation on the substrate, the orientation of the modules, the implementation of maximum power point tracking (MPPT) with resistive loading, and the impact of soiling, among others. These modules were initially characterized and installed at the Arizona State University Photovoltaic Reliability Laboratory (ASU-PRL) in Mesa, Arizona. The project's key finding indicates a direct correlation between operating temperature and energy generation. Performance degradation is also observed during the investigation period. Moreover, the modules' air gap and superstrate materials also affect the power loss due to soiling. This study provides insights into the energy production performance of thin film BAPV systems, offering valuable information for thin film solar companies when installing panels for residential and commercial rooftop applications.