Effect of shading on PV panel technology

Abstract

Solar photovoltaic energy conversion has gained much attention nowadays. The performance of solar photovoltaic system mainly depends on the solar radiation falling on the panel surface. Shading across the panel surface is the main cause for the degradation of its performance. It was found that due to 25% shading strength in mono crystalline PV panel the reduction in short circuit current and maximum power output was respectively 40.72% and 41.40%. Similarly, the reduction in short circuit current and maximum power output was 60.86% and 61.80%, respectively for poly crystalline panel. Under the same level of shading the monocrystalline PV panel shows less reduction in its performance when compared to poly crystalline PV panel.