TagEnergy, a company engaged in energy production and the development of storage solutions, has signed a three-year strategic investment agreement with Banque des Territoires. This collaboration aims to co-finance several battery storage infrastructures in France, beginning with a major project in Cernay-lès-Reims, in the Marne department. The project, with a capacity of 240 megawatts (MW) and 480 megawatt-hours (MWh), is currently the largest stationary storage project under development in the country.
A benchmark project for the storage sector
The Cernay-lès-Reims site, expected to be connected to the electricity grid by the end of 2025, should offer a storage capacity equivalent to approximately 20% of the residential electricity consumption of the department. This installation aims to enhance grid stability during periods of high demand, responding to the growing variability of renewable energy production. The project is managed by a special purpose vehicle (SPV) in which Banque des Territoires now holds 49% of the capital, while TagEnergy remains the majority shareholder.
An expanded investment framework for Banque des Territoires
Active in the storage sector since 2021, Banque des Territoires is increasing its presence in critical energy infrastructure. The investment aligns with the strategic priorities of its plan dedicated to developing a decarbonised energy mix. The objective is to provide flexibility solutions capable of supporting the expansion of renewable energy while reducing dependence on conventional thermal sources during peak consumption.
Large-scale deployment of flexibility solutions
Through this partnership, TagEnergy is accelerating the development of its storage and solar activities. The company plans to replicate the financial model established for Cernay-lès-Reims at other high-capacity sites across the country. The agreement with Banque des Territoires forms a key part of this strategy, facilitating the capital raising required to industrialise storage solutions.
