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Located at Joux-la-Ville in Bourgogne-Franche-Comté, in the vicinity of Innergex’s Yonne and Yonne II wind farms, Tonnerre is a 9 MW / 9 MWh battery energy storage system. The facility provides grid stability and helps balance and secure the French power transmission system.

The energy storage solution has been designed by EVLO, a subsidiary of Hydro-Québec. The IEC 62933- certified and UL9540A-tested battery energy storage system (BESS) enclosure includes several exclusive safety features and uses a unique lithium iron phosphate (LFP) technology, known for its superior thermal and chemical stability.

Tonnerre has been awarded a 7-year Contract for Difference offering a fixed-price contract for capacity certificate with the Réseau de Transport d’Électricité (RTE). The facility will generate additional revenues that will vary based on prevailing energy pricing.

Energy Battery storage
Client RTE
Status In operation
Commissioned 2022
Capacity - Gross (MW) 9
Innergex participation (%) 100