Removal of Hardened Cement Deposited on PV Panels and Its Effect on Power Generation

Abstract

Urban environment effects the power generation capacity of PV plant. There is various type of matter present in urban area. Dust from a construction site can be categorized as (i) Silica dust (ii)Wood dust (iii)Low toxity dust like gypsum, limestone, dolomite. When this dust gets deposited on surface of solar panel they block sun light from reaching cells. Shading of photovoltaic panel affect energy output generation. Shading of PV panel cause hotspot and other issue. Thus decreasing the life of PV panel. For this background, the purpose of our experiment (i) Removing of hardened cement on glass at low rate possible (ii) Observing after effect of acid on PV panel (iii) Observing change in PR of solar PV plant before and after cleaning The result of the experiment is increased PR of 86% and after 6 months of observation. There is no sign of damage due to use of acid for cleaning purpose.