In this paper we conducted an experimental study to evaluate the impact of soiling on the temperature and electricity production of two photovoltaic technologies (Poly-Si and CdTe) under a hot semi-arid climate of Morocco. For this purpose. two modules -from each technology-were exposed for one year where one is cleaned every day and the other is left to accumulate soiling on its surf... https://herbsdailyes.shop/product-category/nails/