US scientists build solar water purifier that stores heat to work even after sunset

Engineers at Rice University have developed a solar-powered desalination system that produces clean water continuously, even without direct sunlight. The Solar Thermal Resonant Energy Exchange Desalination (STREED) system uses heat recycling, eliminating filters, batteries, or external storage. This off-grid solution addresses the global freshwater crisis by operating efficiently in various conditions. Prototype tests produced up to 25 ounces of drinking water per hour, with simulations showing a 77% improvement in water recovery efficiency compared to static systems. This breakthrough could transform clean water access, especially in remote areas.