Harmony Energy has announced plans to develop France’s largest battery energy storage system, the 100 MW / 200 MWh Cheviré battery project. This facility is set to be the country’s first large-scale two-hour battery.
The project, located at the Nantes Saint-Nazaire Harbour on the site of the former Cheviré power station, will utilize Tesla Megapack and Autobidder technology. It is designed to provide enough electricity to power approximately 170,000 homes for two hours, exceeding the population of the City of Nantes.
According to Harmony Energy, the Cheviré battery system will offer essential balancing services to the French electricity grid and support the transition from fossil fuels to renewable energy sources.
Harmony Energy’s Chief Executive for France, Andy Symonds, stated: “Developing and operating vital battery energy storage facilities across France will lead to enhanced energy security, more affordable energy bills, and the decarbonisation of the grid. We are excited to commence building works on our first project.”
Clément Girard, Chief Operating Officer for France at Harmony Energy, highlighted the significance of the site’s transformation: “It’s an exciting location given the historical importance of the fossil-fuel coal power station, but looking ahead, the delivery of the Cheviré BESS will transform the site into exactly the opposite, facilitating the green electrification of the French energy system, whilst offsetting several hundred thousand tons of CO2.”
