Due to a lack of increase in the use of renewable energy, Egypt is having problems attaining sustainable development and safeguarding the environment. Egypt is one of the solar energy-rich countries, with an average direct vertical solar radiation of 2000-3200 kWh/m²/year and 9-11 hours of sunshine per day, indicating the availability of investment potential in solar energy applications, particularly in seawater desalination technologies. Egypt's economic development, like that of all countries in the twenty-first century, is intertwined with the water resources sector. Despite Egypt's promise in terms of solar energy availability, the use of solar energy was confined to its use in heating water, and even this use of solar energy is still constrained, if not entirely limited, to its use in home water heating. In addition to the foregoing, Egypt faces an issue with institutional building preparation, resulting in a delay in the process of replacing traditional energy with solar energy. Furthermore, demonstrating the impact of desalination technology and sanitation on boosting water supplies to meet current and future conditions, as well as ongoing efforts to sustain development and deliver resources.