Millions Are Turning to a Cheaper, Electricity-Free Cooling Solution
economictimes.indiatimes.comNescod (No Electricity and Sustainable Cooling On-Demand) is an innovative, passive cooling technology developed by KAUST researchers that operates without electricity. It uses the endothermic process of dissolving ammonium nitrate in water to generate significant cooling, making it suitable for food storage and room cooling. The system uses solar energy to regenerate the salt, enabling sustainable, repeatable, and low-cost cooling.
So no electricity, but it needs Sun like a solar panel. A solar panel will work all day long, instead of the short time the pad is on the roof.