AugWind Energy To Install First Commercial-Scale AirBattery In Germany - CleanTechnica

AugWind Energy, an Israeli company, is set to build the world’s first commercial-scale AirBattery system in Germany, utilizing compressed air stored in salt caverns to generate electricity. This innovative system can store gigawatt-hours of energy by compressing excess renewable electricity—primarily from wind and solar—and storing it for long periods, potentially up to several months. This long-duration storage capability addresses a critical need for renewable energy backup during extended low-generation periods, such as Germany’s “Dunkelflaute” when solar and wind output is minimal. The AirBattery technology typically can store between 3 to 8 GWh of electricity per cavern, with the final capacity depending on the specific salt cavern selected. The project cost is estimated between 7 to 15 million euros, largely influenced by the cavern’s pressure range. The salt caverns used are naturally airtight due to their dense, pressurized structure, a characteristic that has allowed their use for storing compressed natural gas and other gases safely for