Renewable energies can be considered as an appropriate alternative to fossil fuels and solar energy usually utilized via photovoltaic systems and is a popular field of interest due to its wide availability and ease of uses. However, the efficiency of a photovoltaic panel depends on many environmental parameters. In this study, an experimental investigation is designed to trace the effects of dust accumulation on the surface of a photovoltaic panel. This paper focused on the near-farm dust on the panels used for agriculture purposes. Three modes have been considered: clean, dusty, and muddy. Test has been done for different modes and results show the important role of dust accumulation on panel efficiency. The highest efficiency gained for a clean, dusty, and muddy panel was 15.69%, 10.29%, and 5.67%, respectively.
Keywords Photovoltaic panel • Efficiency • Dust accumulation • Muddy
List of symbolsA PV module area (m 2 ) G Solar radiation intensity (W/m 2 ) FF Fill factor V oc Open-circuit voltage (V oc ) I sc Short-circuit current P max Maximum power (W) PV Photovoltaic STC Standard test conditions Greek symbol η Efficiency (%) * Omid Jahanian