PHOTOVOLTAIC MODULE LABORATORY REFLECTIVITY MEASUREMENTS AND COMPARISON ANALYSIS WITH OTHER REFLECTING SURFACES

摘要

Reflectivity measurements off the surface of PV modules and other reflecting surfaces were performed in the laboratory. The measurements were done using dedicated instruments of very high accuracy and focused on the visible light wavelength, i.e. 380nm to 700nm. The results proved that the reflections coming from PV modules are significantly less intense than others resulting from other surfaces, particularly those coming from vehicles. At large angles of incidence, when reflectivity is maximised, PV modules show advantageous behaviour due to the high absorption compared to other surfaces like car windshields and paints.