Germany's largest battery storage facility to be built at former nuclear power plant site

RWE starts construction of Germany's largest battery storage facility in Gundremmingen - 400 MW capacity to ensure clean grid stability from 2027

11.10.2025

Source: E & M powernews

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Spatenstich: Im bayerischen Gundremmingen errichtet RWE den größten Batteriespeicher Deutschlands — Quelle: RWE

RWE is currently building Germany's largest battery storage facility at the Gundremmingen site in Bavaria. The symbolic ground-breaking ceremony recently took place in the presence of Bavaria's Minister President Markus Söder (CSU). The facility is set to achieve an output of 400 MW and a storage capacity of 700 MWh and will go into operation at the beginning of 2027. The storage facility is being built on the site of the former Gundremmingen nuclear power plant. Just a few days earlier, on October 25, the two cooling towers were blown up. In the coming months, more than 200 containers with around 850,000 lithium iron phosphate battery cells will be installed.

Author: Stefan Sagmeister