TTEP France, part of the TTEP Group, has officially inaugurated the Reyna Battery Energy Storage Facility at the Émile Huchet Power Plant site in Saint-Avold.

The facility has an installed capacity of 65 MW and 130 MWh of energy storage, and its commissioning represents what the company describes as an important new milestone in the ongoing transformation of the historic Émile Huchet site.

Reyna facility strengthens grid flexibility at Émile Huchet site

According to TTEP, the Reyna facility strengthens the site's contribution to the French electricity system by supporting grid flexibility, security of supply, and the integration of renewable energy.

The Émile Huchet Power Plant has for decades played a key role in the region's energy landscape, and the site is now undergoing a significant transformation that combines its long-standing industrial expertise with new technologies supporting the energy transition while maintaining its strategic importance for the French and neighbouring European power markets.

Saint-Avold among France's leading flexibility sites

The Reyna battery energy storage facility builds on the success of the first battery project developed at Saint-Avold and commissioned in 2024.

Together with the existing Merbette installation, the two battery systems now provide a combined installed capacity of 95 MW and 175 MWh of energy storage, making Saint-Avold one of France's leading sites for power flexibility and grid services.

Pietro Benedetto, Chief Operating Officer of TTEP and President of TTEP France, marked the occasion with a statement: "The inauguration of Reyna marks another important step in the transformation of the Émile Huchet site. By building on the expertise of the local teams and the site's strong industrial heritage, TTEP is creating new opportunities that support grid stability, security of supply and the energy transition. With Reyna now fully operational, TTEP France reaffirms its commitment to developing flexible energy solutions that contribute to a reliable, resilient and lower-carbon electricity system."

Local expertise behind both projects

TTEP attributes the successful development of both battery projects to the expertise, commitment, and adaptability of the teams based in Saint-Avold.

Leveraging decades of experience in high-voltage operations, project development, and industrial asset management, those teams played a central role in every phase of the projects, from permitting and construction through commissioning and ongoing operations.

The projects have also benefited, according to the company, from the constructive support of local and regional stakeholders, whose continued commitment helps create a favourable environment for investment and innovation in the energy sector.

Plans to grow the site as an energy hub

Looking ahead, TTEP France sees further opportunities to develop the Saint-Avold site as an important energy hub.

Together with its partners, the company continues to explore projects that can further strengthen the site's role in supporting the future needs of the French power system and the country's energy transition.

About TTEP

TTEP, named after the combination of TotalEnergies and EPH, is a flexible power generation company jointly owned by EPH and TotalEnergies.

Headquartered in Amsterdam, the company operates flexible power and biomass-based assets across Italy, the United Kingdom, Ireland, the Netherlands, and France.

As the second-largest flexible power generation player in Europe, TTEP has more than 14 GW of capacity and generates approximately 30 TWh of electricity annually, supporting security of supply and grid stability alongside the continued growth of renewable energy sources.

Further information is available via TTEP press contact Esther Warta, and project enquiries can be directed to Romain Deshayes, Project Development & Execution Manager at the plant.

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