The renewable energy company TagEnergy has started construction works on its 240 MW/480 MWh battery energy storage platform in Marne (France). The project consists of 140 battery containers, covering an area of 3.5 ha, and it includes a 225 kV connection to the power transmission grid. On-site activities commenced with archaeological investigations in April 2024, with grid connection planned for late 2025. Once completed, the Cernay-lès-Reims BESS project aims to optimize the use of decarbonized electricity by providing critical capacity during peak demand periods and enhancing grid stability with near-instantaneous response capabilities. The battery will have the capacity to store approximately 20% of the residential electricity needs of the Marne department, which is home to over half a million residents.
The Cernay-lès-Reims BESS marks the start of TagEnergy’s ambitious expansion plan for 2025, with accelerated solar and storage development activities.