Enhancing Photovoltaic Panel Efficiency through a Dual-Sided Water Spray Cooling System

Solar panels experience efficiency losses due to high temperatures, which can decrease power output by 0.3%-0.5% per degree above 25°C, with extreme heat causing up to 25% efficiency loss, as prolonged exposure and heat absorption negatively affect the performance of photovoltaic cells. The study investigates the effectiveness of a water spray cooling method to enhance the electrical efficiency ofphotovoltaic (PV) panels under peak solar irradiation conditions. By cooling both sides of the PV panel simultaneously, the researchers aimed to mitigate the adverse effects of high temperatures on panel performance. Experimental results demonstrated that the water-cooling method reduced the panel temperature to approximately 40. 73°C, leading to a remarkable total increase of 68.67% in electric power output and a total increase of 67.86% in electrical efficiency, equating to an effective improvement of 27.63 %. These findings indicate that the proposed cooling technique significantly enhances the operational efficiency of PV systems, making it a viable solution for improving energy output in high-temperature environments. Implementing such cooling strategies can not only optimize the performance of solar panels but also contribute to the long-term sustainability of solar energy systems, particularly in regions experiencing high solar radiation.