German energy group RWE has commissioned two battery energy storage systems (BESS) with a combined capacity of 220MW at its Hamm and Neurath sites.
The company claims the facilities can reach their nominal capacity within seconds and are designed to provide power for approximately one hour, or 235 megawatt-hours (MWh).
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The BESS, which consist of 690 cabinets with eight battery modules each, have capacities of 140MW (151MWh) at Hamm, commissioned in December, and 80MW (84MWh) at Grevenbroich-Neurath.
RWE has made the electricity from these systems available on various energy markets.
Lord Mayor of Hamm Marc Herter said: “The commissioning of the large battery storage system at the Westfalen power plant site shows that Hamm continues to be a key energy location in the region.
“We are becoming an important location for a secure supply with green energy. Our existing high-performance grid infrastructure and Amprion’s new electricity highway, including the large ‘green power socket’ at the Uentrop site, are proof of the area’s excellent future prospects in the post-coal era.
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By GlobalData“With Germany’s largest battery storage system, RWE is already taking an important first step in the right direction.”
In addition to the batteries, RWE has constructed the necessary grid infrastructure, including high-voltage transformers, to connect to the 110kV grid.
RWE noted that it sees significant potential for further development, particularly in Hamm, where RWE plans to build additional large-scale batteries on the site of its former Westfalen hard-coal power plant in Hamm-Uentrop.
RWE Generation CEO Nikolaus Valerius said: “With the storage plants in Neurath and Hamm, we are commissioning one of the largest battery systems in Germany.
“Our batteries perfectly complement the expansion of renewables, which requires a growing number of large-scale energy storage systems.
“Further battery storage systems are already in planning. RWE offers the right solutions for all kinds of different challenges.”
In November 2024, RWE agreed to acquire a majority stake in R3 Renewables, a joint venture of the US coal company Peabody Energy.
