Abstract
The dust accumulation on the photovoltaic solar panels surface is one of the phenomena that significantly affect the proper functioning of solar power plants by hiding the exposure to the sun. The depositing process of dust on the photovoltaic modules surface is highly dependent on the climatic parameters and is therefore specific to the installation site. In this study, both electrical and climatic parameters had been observed at the same time in the Dakar region in Senegal (17 ° 10 and 17 ° 32 west longitude and 14 ° 53 and 14 ° 35 north latitude) from June 2016 to July 2016. A correlation is made between the two types of climatic parameters and the daily variation of the cleanness index. We have noted that rain contributes to the recovery of solar panel performance and that wind speed and relative humidity are the main climatic factors that affect the dust deposition on the photovoltaic solar modules surface.
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