IR Based Photovoltaic Array Performance Assessment

摘要

In this work infrared thermography was used as a diagnostic tool for the performance assessment of a photovoltaic array integrated on the southern fa?ade of NTUA's Chemical Engineering Building. This grid-connected 50 kWp solar photovoltaic array, installed under an EC Thermie Project (SE-142-97-GR-ES), operates in a standard and hybrid PV-Thermal configuration, meant to save conventional energy. The thermographic system used for the analysis covers the wavelength region 8-12 μm. The thermal images obtained showed that there are notable temperature differences on number PV panels, which may be attributed to material defects, manufacturing faults, module malfunction, and external abuse.