The WEFE TECH uses only durable renewable resources: Renewable energy and inexhaustible abundant sea water. Moreover, it minimises the use of energy by a factor of 10 comparing to the conventional cooling systems. Lab-scale prototype Arid areas (with annual rainfall that rarely exceeds 200 mm) are in need of irrigation, and the intrusion of seawater has become a limiting factor to increase agricultural development. Solar power plants that are cooled by seawater enable farms to return to commercial practices. The system in place does produce cool air saturated with fresh salt water vapour from salted water. Temperature underneath the solar greenhouses is reduced by up to 15 °C, and humidity increased by 99% and a 90% water saving is achieved. The main benefits to farmers include self-generation of electricity and reducing energy bills, increased energy efficiency through cooling of solar panels, water saving and reclaim abandoned land into agricultural production. Broader societal benefits can also be achieved including climate mitigation and making small farmers partners in development.