Gravitricity submits global patent for adding hydrogen and heat storage to its energy systems
Published: 19 May 2021, 13:47 Image: Gravitricity. Energy storage company Gravitricity is to add hydrogen and heat storage to its underground gravity energy system. It has now submitted a patent for turning its purpose-built shafts into pressurised energy stores, which would be capable of accumulating significant quantities of gas. Gravitricity will use its shafts as […]