EDF / OpCore Montereau AI Data Center

700 MW AI data center in Vernou-la-Celle-sur-Seine, France: announced.

EDF / OpCore Montereau AI Data Center is a 700 MW AI data center project located in Vernou-la-Celle-sur-Seine, France, currently announced. It is being built by OpCore. The estimated build cost is $4.6B. Its energy source is listed as Low-carbon French grid connection on EDF former power-plant land. This project is one of thousands of data-center facilities tracked by Data Center Index across France, covering operational, under-construction, announced, and permitted sites.

Project description

EDF chose OpCore in November 2025 to build a computing campus on the site of the former Montereau thermal power plant in Seine-et-Marne, in the wider Paris region. EDF says it will be one of Europe's largest, using the state's fast-track grid connection, with first commissioning in 2027.

Related data center projects

Frequently asked questions

What is EDF / OpCore Montereau AI Data Center?
EDF / OpCore Montereau AI Data Center is an AI data center project in Vernou-la-Celle-sur-Seine, France tracked by Data Center Index. Its status is announced.
Where is EDF / OpCore Montereau AI Data Center?
EDF / OpCore Montereau AI Data Center is in Vernou-la-Celle-sur-Seine, France.
How big is EDF / OpCore Montereau AI Data Center?
Data Center Index tracks EDF / OpCore Montereau AI Data Center at 700 MW, on an estimated $4.6B build. That capacity is an estimate. We modeled or inferred it, and no source states it.
Who is building EDF / OpCore Montereau AI Data Center?
OpCore is developing EDF / OpCore Montereau AI Data Center.
When will EDF / OpCore Montereau AI Data Center come online?
The next building at EDF / OpCore Montereau AI Data Center is expected online 2027. That date is the first building going live, not the full build-out.

Sources

  1. EDF (edf.fr · press · 2025-11-17)
  2. InfraVia Capital Partners (infraviacapital.com · press · 2025-11-17)
  3. Data Center Dynamics (datacenterdynamics.com · press · 2025-11-17)
  4. iliad (iliad.fr · press · 2025-11-17)