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August 19,2025

Harmony Energises 100MW/200MWh Cheviré Battery Storage in France

Harmony Energy has energised France’s largest Battery Storage System, the 100MW/200MWh Cheviré project in Nantes Saint-Nazaire Harbour. Built on a former fossil fuel plant site, it uses Tesla Megapack and Autobidder to support the national grid. Capable of powering 170,000 homes for two hours, the project enhances grid stability, reduces emissions and energy costs, and supports France’s clean energy transition.

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