Edinburgh-based start-up Gravitricity’s gravity-fed energy storage system “may offer a better long-term cost of energy storage than batteries or other alternatives – particularly in grid balancing and rapid frequency response services”, according to a report by independent analysts at Imperial College London.
Gravitricity, which received earlier this year a £650,000 ($903,000) grant from Innovate UK, the government’s innovation agency, plans to use its new technology to suspend a massive weight in mine shafts to capture green power, and then release it in seconds.
