ADS-TEC Energy Plans Gigawatt-Scale Battery Storage in Germany

ADS-TEC Energy will construct a large-scale battery energy storage system (BESS) in southern Germany. The project, announced September 27, 2025, aims for a 1 gigawatt output and 2 gigawatt-hour capacity. Developers intend for the BESS to stabilize energy supply and support sustainable energy transition. Grid connection approval is secured; financing and development should conclude by 2026, with full operation targeted for 2029. Initiated nine months prior to the announcement, the BESS intends to supply the daily energy needs of approximately 250,000 homes. The project integrates large solar panel arrays to enhance revenue potential. ADS-TEC Energy projects annual revenues of €230 million, based on P3 Group market analysis. CEO Thomas Speidel stated the project establishes a foundation for secure and sustainable energy. The company expects the facility to operate for decades after completion, contributing to long-term energy stability in the region.