Annual Evaluation of the Operational Efficiency of the Souapiti Hydroelectric Dam in 2025

Abstract

This study presents a comprehensive annual assessment of the operational performance of the Souapiti Hydropower Dam, based on data finalized on December 25, 2025, at 24:00. Key energy, hydrological, and operational indicators were carefully evaluated to assess the dam’s contribution to national electricity generation and its compliance with the Power Purchase Agreement (PPA). Over the year, the dam generated a total of 2,286,763.70 MWh, exceeding the PPA target by 20.42%, with a daily average output of 229.18 MW. A minor underperformance was observed in December, attributed to operational adjustments and seasonal variations in hydrology, highlighting the importance of adaptive management strategies. The reservoir remained well within safe operating levels, maintaining an active storage of 23.89 m and a water level of 208.89 m, ensuring both energy production and environmental safety. Coordination with the Souapiti–Kaléta (S+K) complex further optimized overall system performance, resulting in an average combined power of 349.92 MW at an operational load of 50.71%. These results confirm that the Souapiti Dam operates with high efficiency and plays a strategic role in Guinea’s national energy security. They underscore the need for continuous monitoring, predictive management, and adaptive operational strategies to maintain sustainable, reliable, and resilient energy production over the long term.