Visual Inspection Of Photovoltaic Modules Deployed In A 15 Kwp Off-Grid Solar Power System At Hoineno Village

Abstract

Photovoltaic (PV) modules deployed outdoor are exposed to various environmental conditions which can contribute to degrade their power output. Visual inspection is a well known as an initial method commonly applied to assess degradation modes of PV modules. By applying the method, it was found that the modules installed on the 15 kWp off-grid solar power system at Hoineno village experienced several degradation modes such as snail trails, microcracks, soiling, discoloration, and corrosion. Except soiling factor, the type of degradation is likely attributed to the high temperature and humidity in the village. The effect of dust can be eliminated by performing a cleaning procedure. By doing that, economic losses and permanent degradation on PV modules can be avoided.