Energy storage: Corsica Sole secures €30 million for a 50 MW battery power station in the Hauts-de-France region
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Corsica Sole, an independent solar energy producer and a leader in electricity storage in Europe, is taking a new strategic step forward with the financing of a large-scale battery storage plant on the French mainland.
Located in Beuvry and Labourse (Hauts-de-France), this 50 MW / 100 MWh project, scheduled to come online in early 2027, has secured €30 million in bank financing structured by Bpifrance and Crédit Coopératif.
A key project for the development of energy storage in France
This is Corsica Sole’s first financing for a stationary storage asset in mainland France, marking a significant milestone in the deployment of this technology across the country.
Unlike installations coupled with power stations, this battery will operate independently and will be directly connected to the electricity transmission grid (RTE).
Why is energy storage essential?
Battery storage enables:
the storage of electricity when it is produced in excess
its release during peak consumption periods
the stabilisation of the electricity grid in the face of fluctuations in renewable energy
Against a backdrop of strong growth in solar and wind power, these facilities play a key role in:
ensuring the balance of the electricity system
improving its flexibility
strengthening its resilience
A secure business model to support an emerging market
Financing is partly based on secure revenue streams, notably through an aggregation contract with Agregio Solutions, facilitating the deployment of large-scale storage projects.
This type of structure is essential to support the development of a market that is still emerging in France.
This funding marks a significant milestone for Corsica Sole. It demonstrates our ability to develop stationary storage projects and to design solutions tailored to this rapidly evolving market.
Conversion of a brownfield site into low-carbon infrastructure
The project is located on the site of a former coal-fired power station, illustrating a strategy for redeveloping land that has already been built on.
This approach offers several advantages:
limiting land take
accelerating the conversion of industrial sites
optimising access to the electricity grid
Optimised land use
With a land footprint of 51 m²/MWh, the power station stands out for its particularly efficient use of space, which is approximately three times less than the national benchmark of 160 m²/MWh (ADEME Observatory 2025).
A project combining solar power and storage in the same area
The site already hosts a solar power plant developed by Corsica Sole. The addition of this battery creates a comprehensive energy ecosystem:
renewable energy production
electricity storage
optimisation of existing infrastructure
This synergy helps accelerate the energy transition whilst maximising land use.
Storage at the heart of Corsica Sole’s strategy
With this project, Corsica Sole confirms its position as a leading player in energy storage in France and Europe.
The project is part of a broader strategy to build a portfolio of assets, notably in conjunction with the partnership with the Banque des Territoires.
Energy storage is now emerging as an essential lever for:
integrating more renewable energy
securing the electricity supply
supporting the transformation of the energy system
