Desalination technology is not new, but it uses high-power pumps and is notoriously energy-intensive (and therefore expensive). The solar-microgrid system that GivePower has created, however, can produce almost 20,000 gallons of fresh drinking water each day. It relies on Tesla batteries for energy storage, and it uses two parallel pumps so that the system can run at all times, even if one pump requires maintenance. www.businessinsider.com/solar-powered-device-turns-salt-water-into-fresh-drinking-water-2019-7
A research team at Sweden's Chalmers University has developed a window film capable of absorbing solar energy during the day and releasing the energy as heat into building interiors at night. A few years ago, the same research team introduced the Molecular Solar Thermal (MOST) system, in which solar energy is stored in a liquid medium, then later released as heat. Now, the technology has been applied to a clear film that could be applied to the inside of windows in buildings.
