Data Center Sites in France: Demand, Grid Access, Land

By Razvan Toma · Founder & CEO, Ampervia · Last checked 2026-10-13 · Sources linked below

Quick answer

Paris delivered 72.5 MW of new capacity in the first half of 2026, the most of any FLAP-D metro. France is speeding up large projects: RTE pre-certifies fast-track sites next to 400 kV substations, EDF offers former power-plant land on long leases, and a May 2026 law lets qualifying data centers use the “project of major national interest” procedure for planning changes and grid connections.

72.5 MWParis deliveries, H1 2026: most in FLAP-D

JLL

400 kVRTE fast-track sites sit next to very-high-voltage substations RTE

Law 2026-40326 May 2026: major-national-interest route widened French Ministry of Ecologica

≈€4bnMontereau campus on a former EDF coal-plant site Reuters

What buyers ask for here

Who	Where	Size	What they buy	Written
European operator, M&A team	Paris (with London, Frankfurt)	~100 MVA ideal; smaller only inside established clusters	Brownfield	Jul 2026
European operator, development team	France (with UK, Germany)	≥40 MVA in Tier 1–2 markets; ≥200 MVA elsewhere	Brownfield	Jul 2026
Family office	France	Distressed industrial sites	Buys land to sell as powered sites	Jul 2026

Anonymised; stated requirements, not commitments to buy a specific site.

Where sites come from

RTE fast-track industrial sites, EDF land offered through calls for expressions of interest on long building leases, and brownfield sites in the Paris clusters.

How the power is won

RTE certifies sites where it can connect a very large consumer quickly at 400 kV and manage congestion without curtailing it. EDF pairs its former plant sites with connection support.

Planning and regulation

Law 2026-403 of 26 May 2026 widens the “projets d’intérêt national majeur” regime, allowing accelerated changes to planning documents and network connections for qualifying projects, including certain data centers. French Ministry of Ecologica