European data centre operator Data4 has signed a 12-year nuclear production allocation contract with French utility EDF, securing a long-term supply of low-carbon electricity for its facilities in France.
The agreement, known as a CAPN contract, makes Data4 the first data centre operator in the country to secure such an arrangement. Under the deal, Data4 will receive an allocation of 40 MW from EDF’s nuclear fleet, with deliveries scheduled to begin in 2026. The supply is expected to amount to around 230 GWh annually.
The contract includes a cost- and risk-sharing mechanism and forms part of Data4’s wider strategy to cut carbon emissions and strengthen its sustainability commitments.
François Stérin, Data4’s chief operating officer, described the deal as a milestone for the company:
“This contract is not only a strong environmental commitment; it is also a cornerstone of our growth and competitiveness strategy. Combined with renewable energy purchase agreements, it guarantees reliable, resilient, and continuous access to low-carbon energy at a controlled long-term cost.”
EDF executive director Marc Benayoun said the agreement aligns with the company’s goal of supporting the development of the digital sector while advancing France’s energy transition:
“This partnership will enable Data4 to benefit from a low-carbon, competitive, and available electricity supply, which is a key asset for digital players.”
The deal comes as EDF continues to emphasise the role of nuclear energy in ensuring reliable power supplies. Last month, the company extended the operational lifetimes of its UK nuclear stations Heysham 1 and Hartlepool by one year, pushing their closure dates to March 2028.
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