en.Wedoany.com Reported - TagEnergy has officially commenced commercial operations of its 240 MW/480 MWh battery energy storage system (BESS) in Cernay-lès-Reims, France, making it the largest operational storage project in the country to date.

Located in the Marne department of the Grand Est region, the storage facility utilizes Tesla Megapack technology. During project development, TagEnergy collaborated with French transmission system operator RTE, the SICAE de la Somme et du Cambraisis cooperative, and local stakeholders, including the municipality of Cernay-lès-Reims and the Greater Reims urban community. The asset is jointly owned by TagEnergy and Banque des Territoires, which actively supports French BESS infrastructure development.

TagEnergy noted that the installed capacity of the Cernay project is more than double that of France's second-largest operational storage asset. Looking back at recent developments, France's battery storage installed capacity has grown from less than 50 MW five years ago to approximately 1.5 GW by early 2026.

Company Chairman and CEO Franck Woitiez stated that the commissioning of this project not only marks the company's first operational asset in France but also further reinforces its long-term commitment to delivering the storage projects that France needs.

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