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

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.

• hydropower
• Francis turbine
• aquifer thermal energy storage
• hydraulic energy conversion
• energy efficiency
• return on investment

• 7 — Affordable and clean energy
• 6 — Clean water and sanitation
• 9 — Industry, innovation and infrastructure
• 13 — Climate action

• Cavitation Phenomena in Pumps
• Renewable energy and sustainable power systems
• Power Systems and Renewable Energy
• hydropower
• Francis turbine
• aquifer thermal energy storage
• hydraulic energy conversion
• energy efficiency
• return on investment
• Mechanics of Materials
• Renewable Energy, Sustainability and the Environment
• Energy Engineering and Power Technology
• Engineering
• Energy