International Journal of Emerging Research in Science, Engineering, and Management
Vol. 1, Issue 5, pp. 19-24, November 2025.
This work is licensed under a Creative Commons Attribution 4.0 International License.
Performance Evaluation of Solar Photovoltaic Panels Under Different Environmental Conditions in Southern India
E Prasanthi
Assistant Professor, Department of ECE, Geethanjali Institute of Science and Technology, Nellore, India
Abstract: Solar photovoltaic (PV) systems are increasingly deployed across Southern India due to high solar irradiance, favorable climatic conditions, and growing emphasis on renewable energy adoption. However, the performance of PV modules varies significantly under real-world environmental conditions, including temperature, humidity, dust accumulation, wind speed, and irradiance fluctuations. This study evaluates the operational performance of PV panels installed in Southern India by analyzing their energy yield, efficiency, and performance ratio under varying environmental parameters. Prior studies have demonstrated that environmental factors such as temperature, humidity, dust deposition, and shading can cause substantial reductions in PV efficiency and long-term degradation. Building upon these insights, the present work employs on-site monitoring to assess temperature-dependent efficiency losses, dust-induced soiling effects, and the influence of local climatic conditions. The results indicate that efficiency decreases with rising module temperatures, dust accumulation leads to notable power losses, and seasonal variations significantly impact energy output. The study highlights the importance of optimized cleaning strategies, regular performance monitoring, and region-specific maintenance schedules to achieve sustained PV performance in Southern India.
Keywords: Solar Photovoltaics, Environmental Conditions, Performance Ratio, Temperature Effects, Dust Accumulation, Solar Irradiance, Southern India.
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