PERFORMANCE EVALUATION OF THE SOUAPITI HYDROELECTRIC POWER PLANT (APRIL-JUNE 2025) IN THE REPUBLIC OF GUINEA

This study models the operational performance of the Souapiti hydroelectric power plant (Guinea) over a three-month period, from April to June 2025. The data analyzed include annual energy delivered to the grid, average daily power output, reservoir level, effective head, inflow and turbine flow rates, and monthly and annual performance rates compared to the contractual forecasts of the Power Purchase Agreement (PPA) [2], [6].In April, the plant delivered 575,893.70 MWh with an average output of 242.31 MW, achieving 30.33% of its annual target. In May, production increased (762,610.50 MWh, 274.64 MW), despite a decrease in inflow (61.27 m3/s), suggesting intensive use of the water reservoir, which led to a reduction in the remaining effective head [3], [8]. In June, although the inflow rate increased (178.28 m3/s), the average power output dropped to 179.57 MW, due to a reduced water level of only 4.19 m, limiting production capacity.This variability reflects the direct influence of hydrological conditions on the plants performance [9], [10], as well as the importance of optimized reservoir management [12], [14]. The analysis highlights the strategic use of available water to maximize power output at specific times, while emphasizing the need for a balance between resource exploitation and conservation [1], [4], [5]. This monitoring thus makes it possible to identify levers for optimization in medium-term management, particularly through better forecasting of inflows and dynamic modeling of energy production under climate variability [13], [15].