RWE has commenced construction of a battery energy storage system (BESS) project at the Hambach opencast mine near Niederzier in Germany. The project has an installed capacity of 236 MW/470 MWh. Preparatory work for the project commenced at the end of 2025. The first of 128 lithium-ion battery containers for the project has already been delivered to the project site.

Furthermore, the first of 128 lithium-ion battery containers for the project has already been delivered to the project site. The project is expected to commence operations in 2027. RWE has already commissioned around 50 MWac of solar PV alongside a 4.1 MW/8.1 MWh BESS earlier at the same site.

In July 2026, RWE received federal environmental approval for its 1.1 GW Theodore wind farm. The project is located in Central Queensland, Australia. The project secured State Development Approval in June 2025 and was awarded the Capacity Investment Scheme contract under Tender 7 in May 2026. The project, valued at A$3 billion, will comprise up to 170 wind turbines and a battery energy storage system.