Infrared drone inspections are now routine for solar projects, but post-installation electroluminescence (EL) testing remains misunderstood and underutilized, argue Jörg Althaus of Clean Energy Associates (CEA) and Andreas Fladung of Aerial PV Inspection. The pair examine EL’s ability to detect microcracks, early-stage degradation, and installation-induced damage, revealing how good planning and execution can lead to meaningful results.
EL testing by drone can be used to identify cracks, microcracks and other module defects.
Image: Aerial PV Inspection
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