Data centres in France, 2024-2035
Electricity consumed on dedicated sites, RTE range, in TWh per year
Data centres in France, 2024-2035
Sources
Source: RTE, Bilan prévisionnel 2025; share: calculation by Projet Celsius. projetcelsius.com/en/ai · CC BY 4.0
The analysis
- In 2035, the high assumption would represent 7% of French consumption in 2025.
- Projects reserved 18 GW of grid connection in May 2026; at full load all year, that would be 158 TWh, but data centres connected for 2 to 3 years only draw about 20% of the requested power.
The figures
- The dark part of each bar goes up to RTE's low assumption, the light part up to the high assumption.
- 2024 : 4 to 5 TWh.
- 2030 : 10 to 15 TWh.
- 2035 : 21 to 32 TWh.
Assumptions
- Data centres on dedicated sites, mainland France.
- The trajectories depend on the actual pace of grid connections, which RTE revises every year.
- The shares are calculated on 2025 consumption, so that the 3 years remain comparable; French consumption will have changed by then.
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