ArcelorMittal and EDF sign deal for major battery storage project in Bremen

ArcelorMittal and EDF power solutions Germany have signed an agreement for the operation of a large-scale battery storage system at ArcelorMittal’s Bremen steel plant. The project is designed to support grid stability, reduce energy costs and contribute to the steelmaker’s decarbonisation strategy.

The planned battery system will provide 25 MW of power and 50 MWh of storage capacity, making it one of the largest battery storage projects in northern Germany. According to the companies, the capacity would theoretically be sufficient to supply a household consuming 2,500 kWh annually for around 20 years without recharging.

The battery storage system will play a central role in managing peak electricity demand at the Bremen site. By charging and discharging automatically during defined periods, the system is expected to smooth peak loads, lower strain on the power grid and reduce electricity procurement costs. The storage unit will also participate flexibly in the electricity market to generate additional revenues and optimise energy purchasing.

EDF power solutions Germany will handle the technical design, installation, service and maintenance of the battery system under a 10-year service agreement.

“The battery storage system at the Bremen site will be one of the largest in northern Germany. Since the plant can consume electricity around the clock, the storage system will contribute significantly to grid stability,” said Rainer Böse, CEO of ArcelorMittal Germany. He added that the project represents “another step towards further reducing CO₂ emissions in the future.”

Clotaire François, Chief Storage and C&I Officer at EDF power solutions Germany, said: “Industrial companies with both high electricity consumption and fixed production processes need flexible solutions. Battery storage systems provide exactly that — while also supporting ArcelorMittal’s sustainability goals on the path to climate neutrality by 2050.”

ArcelorMittal Germany operates major steel production sites in Bremen, Eisenhüttenstadt, Hamburg and Duisburg, with total crude steel production of around 8 million tonnes annually. EDF power solutions Germany develops and operates renewable energy, battery storage and hydrogen-related projects as part of the international EDF group.

Source and Photo: ArcelorMittal