Overview
- RWE is building a grid‑scale lithium‑ion battery on a three‑hectare plot at the Hambach open‑cast mine with a rated power of 236 megawatts and storage of 470 megawatt‑hours.
- The company has taken delivery of the first of 128 battery containers and has begun on‑site construction work, with full commissioning planned for 2027.
- RWE says the facility will respond in fractions of a second to balance imbalances in the power grid and provide fast frequency control to support variable wind and solar output.
- The Hambach project is part of a larger RWE rollout: the group reports about 1,700 MW of battery capacity in operation and roughly 2,500 MW under construction, including big projects at Gundremmingen and Lingen.
- RWE declined to disclose capital costs for Hambach, and the project builds on earlier local renewables work at the former lignite site where RWE already operates around 50 MW of solar and smaller storage installations.