Data centres and the energy transition: Corsica Sole expands its storage capacity in Europe
Press releases
With the rise of data centres and artificial intelligence, electricity demand is rising sharply across Europe. Corsica Sole is developing solar generation and energy storage capacity to support this transformation and secure the electricity supply.
The rise of data centres: a major energy challenge
The rise of artificial intelligence and data centres is profoundly transforming energy systems. In Europe, the growth in electricity demand is creating new requirements: producing more renewable energy whilst ensuring the stability and resilience of electricity grids.
In this context, energy storage is becoming a key component in supporting this transformation.
Corsica Sole, an independent solar energy producer and a major player in energy storage in Europe, is accelerating its development to meet these new challenges.
An energy model tailored to new electricity needs
To support the rise of data centres and new electricity uses, Corsica Sole is developing an integrated model combining solar energy production, large-scale energy storage solutions and rapid deployment across Europe.
The company currently operates around 150 MWp of solar power plants and 360 MWh of storage capacity. Its project portfolio represents over 1 GW of solar and 5 GWh of storage, of which nearly 3 GWh will be deployed within the next two years.
This development addresses a key challenge: securing the electricity supply whilst integrating more renewable energy.
Energy storage: a key solution for data centres
The expansion of data centres places significant demands on electricity grids: continuous availability, managing consumption peaks and integrating intermittent energy sources.
Energy storage solutions address these challenges by storing electricity during periods of high generation, releasing it during peaks in demand and helping to stabilise grid frequency and voltage.
By providing energy flexibility, storage plays a central role in powering data centres and securing electricity systems.
Corsica Sole is now gearing up to scale up its operations, with a target of 3 GWh of storage capacity in Europe over the next two years.
Accelerating projects in France and Europe
In 2026, Corsica Sole will reach a new milestone in its development with the commissioning of its first storage plant on the French mainland (100 MWh), the deployment of two plants in Martinique (25 MWh) and the development of a portfolio of over 1.5 GWh of storage projects on the mainland.
At European level, the company is strengthening its presence with several key projects. In Estonia, the Hertz 1 and Hertz 2 projects represent a total capacity of 200 MW / 400 MWh. In Poland, over 300 MWh of projects will be launched into construction, whilst developments continue in the Czech Republic.
Long-standing expertise in non-interconnected areas
A specialist in island territories since 2009, Corsica Sole is continuing to roll out photovoltaic projects tailored to non-interconnected areas.
In Corsica, around 40 MW of solar power plants are currently under construction, with commissioning scheduled for between late 2026 and early 2027. In Réunion, the teams are also developing rooftop photovoltaic projects at a rate of around 5 MWp.
These projects help to strengthen energy sovereignty and accelerate the decarbonisation of these regions.
Artificial intelligence and energy: a shift in scale
The growth of data centres linked to artificial intelligence is driving a rapid increase in electricity demand.
In this context, the joint development of renewable generation capacity and energy storage is a key solution to ensure a reliable supply, limit dependence on fossil fuels and support the electrification of end-use applications.
Corsica Sole is anticipating these developments by integrating artificial intelligence at the heart of its operations and by strengthening its energy capabilities.
Renewable hydrogen: another form of energy storage
In addition to batteries, Corsica Sole is developing longer-term storage solutions using renewable hydrogen.
The Follel’Hy project, in Haute-Corse, enables the production of 100% solar-powered hydrogen, stored under pressure and intended for various uses, particularly in the maritime and industrial sectors.
This approach illustrates the synergy between solar generation and multi-technology storage solutions.
Growth driven by innovation and talent
By the end of 2025, Corsica Sole had around 190 employees. Around 20 additional recruitments are planned for 2026 to support the company’s development.
These roles are primarily in engineering, project development, finance and the environment.
A vision: building the energy infrastructure of tomorrow
In the face of the transformation of European energy systems and the rise of data centres, Corsica Sole has a clear vision: to develop infrastructure capable of producing, storing and managing energy in a flexible and carbon-free manner.
Europe today needs solutions capable of addressing the challenges of carbon-free energy production whilst contributing to the stability of electricity grids, in order to cope with the emergence of new energy uses on the one hand, and to ensure our strategic independence in an unstable geopolitical context on the other. With its dual expertise in photovoltaics and energy storage, Corsica Sole is set to evolve from a pioneer into a European leader
