Harmony Energy is set to deliver France’s largest battery energy storage system (BESS), the Cheviré battery project, using Tesla Megapack technology. This 100 MW / 200 MWh system will store enough electricity to meet the average needs of 170,000 homes for two hours, marking a significant milestone in the French energy sector.

Located in Nantes Saint-Nazaire Harbour, on the former site of the Cheviré power station, this project represents a transformative shift from fossil fuels to renewable energy. The Cheviré power station was operational from 1954 to 1986 and was fueled by coal, gas, and oil. The new battery storage system will utilize Tesla’s advanced Megapack and Autobidder technology to provide critical balancing services to the French electricity grid and support the transition to renewable energy.

Harmony Energy CEO 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 decarbonization of the grid. We are excited to commence building works on our first project.”

COO for France Clément Girard highlighted the project's significance: “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.”

Having developed and energized the three largest BESS in Europe by MWh, all with Tesla technology, Harmony Energy continues to set new standards with biodiversity initiatives, community funds, and cutting-edge technology.

Source: Harmony Energy