Alpiq Acquires France's Largest Operational Battery Storage Project

By Global Infrastructure Sherpa · Jan 22, 2026

Acquisition StorageBattery Storage closed Nantes, France Jan 22, 2026

100 MW

Capacity

operating

Stage

Cheviré battery energy storage system (BESS)

Project

Alpiq, a Swiss utility company, has acquired France's largest operational battery storage project from Harmony Energy, a UK-based developer. The 100 MW/200 MWh Cheviré battery energy storage system (BESS) is located at the Port of Nantes Saint-Nazaire Harbour and utilizes Tesla Megapack and Autobidder technologies. The project was fully developed, constructed, and brought into commercial operation by Harmony Energy prior to the sale. Alpiq now holds a BESS portfolio of more than 750 MW across France, Germany, and the Nordics, with nearly half already operational or under construction. The company plans further investments in BESS and other flexible energy storage systems in key European markets.

Deal Analysis

Alpiq's acquisition of France's largest operational battery storage project from Harmony Energy marks a significant milestone in the company's expansion of its battery energy storage system (BESS) portfolio. The 100 MW/200 MWh Cheviré BESS project, utilizing Tesla Megapack and Autobidder technologies, is a notable addition to Alpiq's existing portfolio of over 750 MW across France, Germany, and the Nordics. This deal highlights Alpiq's commitment to investing in flexible energy storage systems in key European markets, with nearly half of its portfolio already operational or under construction. The acquisition demonstrates the growing importance of energy storage in the European energy landscape, driven by the increasing need for renewable energy sources and grid stability. The involvement of prominent players such as Alpiq, Harmony Energy, and Tesla underscores the deal's strategic significance. As the energy sector continues to evolve, this acquisition positions Alpiq as a major player in the European energy storage market, with a strong foundation for future growth and expansion.

Alpiq acquires France's largest operational battery storage project, the 100 MW/200 MWh Cheviré BESS
The project utilizes Tesla Megapack and Autobidder technologies, demonstrating the adoption of innovative energy storage solutions
Alpiq's BESS portfolio now exceeds 750 MW across France, Germany, and the Nordics, with nearly half already operational or under construction
The deal underscores the growing importance of energy storage in the European energy landscape, driven by the increasing need for renewable energy sources and grid stability

Market Context: The European energy storage market is experiencing significant growth, driven by the increasing adoption of renewable energy sources and the need for grid stability. As countries strive to meet their renewable energy targets and reduce carbon emissions, energy storage solutions like battery storage systems are becoming increasingly important. This deal is set against the backdrop of a rapidly evolving energy landscape, with companies like Alpiq, Harmony Energy, and Tesla playing key roles in shaping the future of the sector.