Electroluminescence and Infrared analysis of damaged photovoltaic modules

This paper intends to highlight how the use of Electroluminescence and Infrared technologies can show invisible defects in modules that often appear completely intact to the naked eye. This work is based on a practical experience which is divided into two parts: a laboratory experiment and a programming activity. The first part made it possible to obtain "raw data", images and Excel files through the use of special cameras. The second part developed around the processing of spreadsheet files. This passage made it possible to obtain a greater signal, focusing on the areas of interest. Different types of damage will also be presented, with attention to damage caused by hail.