The Power Of Aerial Thermography

Most photovoltaic module manufacturers guarantee 90% efficiency for 10 years, and 80% for 25 years. However, as a panel ages, gradual degradation occurs and one of the most significant causes is the module hotspot. This may occur due to high resistive joints, panel cracks, or a variety of other reasons. Abnormal weather conditions (lightning, storms), panel cell overheating, and other component failures can also lead to hotspots within a PV module.   An internal study concluded that hotspots can lead to a 16% loss of efficiency in a single module, and that they are the primary threat to PV modules. If …

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