<p>In order to evaluate the energy efficiency of hybrid solar-geothermal heat pump systems customized for different Egyptian locations in New Noubarya, this study presents an innovative approach. Lastly, this study investigates the proportion of concentrated solar thermal and photovoltaic power generation that maximizes the levelized cost of producing water and energy. By contrasting the hybrid power plant’s performance with that of a power system made up of independent geothermal and solar power plants, the technical and financial efficiency evaluation was completed using the GeoT*SOL program. The results demonstrate that solar contribution with 86% of the total heating demand being supplied by solar energy. Utilized energy of space heating is 550 kWh with percentage of 25% while utilized energy of domestic hot water is 1656 kWh with percentage of 75%. Solar fraction of solar loop is 86.1% while solar fraction of domestic hot water is 99.5% and efficiency of solar system is 17.3%. From economic view; net present value of this proposed system is 20,213.11 L.E while the cost of heating energy is 0.0451 L.E/kWh, cost of distilled water is 0.47 L.E per meter cube and payback period is 7.3 years. The Egyptian station demonstrated the maximum carbon dioxide (CO₂) emission avoidance 3.12 tons per year. Despite early financial obstacles, the results show that hybrid solar-geothermal systems have the potential to drastically lower energy use and CO₂ emissions. They also emphasize the significance of additional geothermal technology investment to improve Egypt’s energy security and lessen its reliance on fossil fuels.</p> Graphical Abstract <p></p>