MIT researchers have unveiled a groundbreaking solar-powered desalination system that operates directly on sunlight without requiring batteries or external power. This technology, which adjusts desalination rates based on sunlight availability, promises significant cost reductions and improved efficiency compared to traditional methods. By utilizing flexible batch electrodialysis, the system enhances longevity and energy efficiency, particularly for brackish water sources. The new approach could revolutionize water access in regions facing scarcity, providing a sustainable solution for clean water. The findings are published in Nature Water.