By applying an electrical current to a PV device, EL imaging captures the emitted infrared light using a specialized camera, enabling the identification of defects, cracks, and degradation patterns that are otherwise invisible to the naked eye. . An infrared camera helps to visualise defects on new and existing installations Over the last years a remarkable increase of photovoltaic installations for producing renewable energy with both residential and non-residential buildings could be registered. At the same time large solar power plants. . Abstract—Utility-scale solar arrays require specialized inspection methods for detecting faulty panels. Photovoltaic (PV) panel faults caused by weather, ground leakage, circuit issues, temperature, environment, age, and other damage can take many forms but often symptomatically exhibit temperature. . This paper illustrates how infrared thermography can be applied to determine the operational status of photovoltaic solar systems on a large aerial scale. It examines key challenges, including ambient light interference. .
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