Effect of different tilt angles on the performance of the different PV panels in Pouytenga, Burkina Faso

This study investigates the impact of varying tilt angles on the performance of crystalline silicon (c-Si) and copper indium diselenide (CIS) photovoltaic (PV) panels in Pouytenga, Burkina Faso. Located in West Africa, Burkina Faso possesses significant solar energy potential, yet faces considerable challenges in terms of energy access, particularly in rural regions. This research focuses on 3 kW power PV systems, employing the PVGIS (Photovoltaic Geographical Information System) software and the SARAH solar radiation database to conduct simulations at different tilt angles (0°, 10°, 20°, and 30°) with a fixed south-facing orientation (azimuth angle of 0°). The 3 kWp system size was selected as a scalable option suitable for meeting the energy needs of a typical household or small business in the area, and appropriate for off-grid applications. Using typical meteorological year (TMY) data for Pouytenga, monthly average simulations were carried out. Key performance indicators, including annual energy yield (kWh), average monthly energy production (kWh/month), performance ratio (PR), and capacity factor (CF), were analyzed. The results enable the determination of the optimal tilt angle for both c-Si and CIS PV technologies, as well as a comparison of their performance at different tilt angles. This study provides practical insights for optimizing the design and installation of 3 kW power PV systems in Pouytenga and other regions with similar climatic conditions, ultimately contributing to more effective utilization of solar energy and improved energy access.