Measurement and analysis of the performance of photovoltaic modules under shaded conditions in an Algerian coastal region

Shading of photovoltaic (PV) panels presents a critical challenge in the building and residential sectors, as it can influence the reliability and performance of PV systems.To improve the efficiency of Buildings Integrated Photovoltaic (BIPV) applications, it is essential to analyze the effect of shading and implement appropriate solutions to ensure optimal energy production.In this context, an experimental study is conducted in this paper to investigate the impact of shading location on the power output of PV modules.The results demonstrated that power losses caused by horizontal shading are significantly greater than those resulting from vertical shading, highlighting the importance of managing shading to optimize systems performance.Besides, within the same string, the electrical behavior of a PV module subjected to random shading tends to reflect that of the most heavily shaded cell.This occurs because the most shaded cells limit the module's power output, thereby affecting the performance of the entire string.