A new energy storage system can store solar power for nearly two decades
Researchers from Sweden's Chalmers University of Technology designed an energy system that stores solar energy in liquid form for up to 18 years, a press statement reveals. The team has tested its device, called the Molecular Solar Thermal system (MOST), by connecting it to a thermoelectric generator, demonstrating that it produces electricity.
https://interestingengineering.com/solar-power-storage-system