Abstract
Part of the major causes of low performance and output of solar photovoltaic (PV) systems is dust accumulation on the panel. The radiation getting to the solar cells of the panel can be decreased due to the accumulation of dust on the surface of the solar PV panel. Dust decreases the amount of radiation on solar cells of the panel, and also reduces the performance output of the solar PV panel. The environment is one of the contributing parameters which directly affect the photovoltaic performance. In this research work, the influence of dust, on the efficiency and performance output of solar PV panels is investigated to determine the efficiency of the solar PV panel, determine the energy power output of the solar PV system. Three identical panels are used to measure voltage, current and temperature. The result obtained showed that the meanfficiency for the clean panel is 14.98%, the mean efficiency for panel with artificial dust is 11.19% and that of the panel with natural dust is 13.25%. The mean power for the clean panel is 245.04 W, for panel with artificial dust is 183.20 W and for panel with natural dust is 216.86 W. This research shows the correlation between dust accumulation and reduced maximum power output due to the drop in both voltage and current values for the panel with dust.
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