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September 10, 2025Open Access

Improving electrical energy efficiency through hydroelectric power and turbine optimization at the El Oued water demineralization plant in Algeria

KMKhaled Miloudi AMAli MedjghouUniversity of Batna 1 ADAla Eddine Djokhrab

Key Points

The average annual energy output was 1,804,560 kWh, resulting in significant energy savings.
The economic analysis indicates a financial gain of approximately 345,888,600 DZD per year.
The designed turbine-generator system utilized a Francis turbine, with efficiency between 90% and 95%.
Simulation with MATLAB-Simulink demonstrated the system’s effectiveness in managing electrical network parameters.

Abstract

This paper presents an investigation into the energy potential of the Albian aquifer in the Algerian Sahara at the El Oued water demineralization plant, focusing on its capacity to generate electrical power due to its high-pressure and high-temperature water reserves. We designed and implemented a turbine-generator system to convert hydraulic energy into electricity, achieving an average annual energy output of 1,804,560 kWh, which translates to a financial gain of approximately 345,888,600 DZD per year from energy savings. The selection of a Francis turbine was justified based on its efficiency, which ranges from 90% to 95%, and the system design was simulated using MATLAB-Simulink, demonstrating its robustness and effectiveness in managing the electrical network parameters. Our economic analysis indicates a high return on investment, confirming the feasibility of utilizing the Albian aquifer as a strategic asset for clean and reliable energy production in the region.

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