RTE Just Published the 5 Official France Fast-Track Sites. Here Is What 4.8 GW in 2 to 4 Years Means for AI Data Center Developers.
On June 1, 2026, alongside the Choose France summit, RTE — France's national transmission system operator — officially published the five fast-track grid connection sites for large power consumers, including AI data centers. This is not a market rumour or an analyst projection. It is a signed document co-published by Choose France and RTE, establishing the official government policy for accelerated grid connections at very high voltage (400 kV) by 2028–2029.
Thomas Veyrenc, Executive Director at RTE and member of its Board, confirmed in a LinkedIn post the same day: "250 MW accessible in two years (permitting included), up to 1,000 MW in four years or less."
THE 5 OFFICIAL SITES — CONFIRMED CAPACITIES
1. ZAC du Bosquel — Somme, Hauts-de-France
Initial capacity: 1,000 MW
2. Parc des Soufflantes — Escaudain, Nord, Hauts-de-France
Initial capacity: 700 MW · SoftBank deployment site
3. ZAC des Bordes — Fouju, Seine-et-Marne, Île-de-France
Initial capacity: 700 MW
4. Grand Port maritime de Dunkerque — Nord, Hauts-de-France
Initial capacity: 700 MW · SoftBank Dunkirk site
5. Ancienne centrale EDF de Montereau — Vernou-la-Celle-sur-Seine / La-Grande-Paroisse, Seine-et-Marne
Initial capacity: 700 MW · Former EDF power plant
Total fast-track capacity: 4,800 MW = 4.8 GW
Source: RTE / Choose France, June 1, 2026
THE OFFICIAL TIMELINE — WHAT "FAST TRACK" ACTUALLY MEANS
The RTE document establishes a specific, legally-backed timeline framework that replaces the standard grid connection process for these sites:
First power tranche (~250 MW): accessible in 2 years · permitting included
Full capacity (~1,000 MW): 4 years or less · in line with project ramp-up
Comparison:
Virginia / PJM: 7–10 years for new large load interconnections
Ireland: de facto moratorium until 2028
Netherlands: new connections banned until 2030
Frankfurt: new connections banned until 2030
The fast-track process was created at the February 2025 Élysée AI Summit and has been validated by international investors. SoftBank confirmed the timeline publicly in Les Echos.
THREE STRUCTURAL ADVANTAGES OF THE FAST-TRACK FRAMEWORK
Thomas Veyrenc's post describes three design principles that make the fast-track framework structurally different from standard interconnection processes in other markets:
1. Financial commitment at reservation. Unlike US interconnection queues where projects can reserve capacity without deploying capital — creating the "phantom projects" problem that inflates queue lengths — the French fast-track requires financial commitment at the point of reservation. This eliminates speculative queue positioning and ensures that reserved capacity is real demand.
2. Pre-planned grid reinforcement. Dunkirk's capacity is enabled by grid investments already committed — not contingent on future decisions. The 400 kV infrastructure at each fast-track site has been validated through RTE's national grid planning process before the sites were published. This means the connection timeline is a genuine commitment, not an optimistic estimate.
3. No cost transfer to other grid users. The framework is explicitly designed so that AI data center grid reinforcement costs are not passed to existing users. This addresses a key regulatory risk that has slowed large load connections in the UK and Germany.
WHAT THIS MEANS FOR DEVELOPERS NOT ON THE FAST-TRACK LIST
The five published sites represent the first wave. The RTE document explicitly states: "The fast-track process can subsequently be activated on new sites as suitable land is identified and the grid evolves."
This means the framework exists. The process is established. The question for developers evaluating other French locations is whether their site meets the grid conditions that would qualify for fast-track designation — and if not, what the realistic timeline is under the standard process.
Fast-track sites (5 official): 250 MW in 2 years · 1 GW in 4 years
Brownfield HTB-connected sites: 18–36 months (standard RTE process)
Greenfield sites: 3–5 years (standard)
Sites requiring new 400 kV infrastructure: 5–8 years
The fast-track designation is powerful — but the 18–36 month brownfield window remains valid for developers who cannot access the five published sites. France has 63 government-identified brownfield sites and 40+ in GridReadiness's proprietary database that operate under the standard process with significantly faster timelines than any other major European or US market.
THE SOFTBANK VALIDATION
SoftBank's €75 billion France commitment — announced at Choose France on June 1 — specifically names Dunkirk (site 4) and Bouchain/Escaudain (site 2) as deployment locations. Both are on the fast-track list. SoftBank's management confirmed the timeline publicly in Les Echos, providing the first major international investor validation of the fast-track framework's commercial viability.
This is the signal that converts the fast-track from a government policy document into a market-tested infrastructure commitment. When a company deploying €75 billion publicly confirms the timeline, the 2-to-4-year window becomes a bankable assumption.
THE FULL PICTURE FOR 2026–2030
Fast-track capacity (5 sites): 4,800 MW confirmed
First access (250 MW): 2 years from application
Full capacity: 4 years or less
Nuclear baseload: €50–70/MWh · 70% of mix · 24/7
Carbon intensity: 51 gCO2e/kWh (UNU-INWEH 2026 · rank 3rd lowest globally)
Choose France 2026 commitments: SoftBank €75B · Ardian €5B · Nebius €8B · Mistral €4B
EU second-tier transformers still available:
Efacec 20–28 months · Pauwels 24–32 months · Schneider France 18–26 months
Virginia comparison: 7–10 years · Ireland: moratorium · NL: closed 2030
GridReadiness tracks grid connection feasibility, transformer procurement windows, and brownfield site availability across France and Europe monthly. The fast-track sites are now part of the Tier 1 database. For developers evaluating sites outside the five official fast-track locations, the 72-hour Grid Deployment Risk Audit assesses whether the standard brownfield timeline applies and what transformer procurement window is available. Consulting services →
Source: RTE / Choose France, "Une procédure accélérée de raccordement au réseau électrique pour les projets très consommateurs," June 1, 2026. Thomas Veyrenc LinkedIn post, June 1, 2026. All RTE language paraphrased, not reproduced verbatim.