GridReadiness · Data Hub · June 2026

DATA HUB

Updated October 2026Grid connection timelines in France depend on the connection document held (exploratory study, accepted PTF or signed agreement), the works RTE must carry out and their permits. They are site-specific and often run to several years. See our grid connection glossary and which document actually secures a site.

Monthly intelligence on transformer lead times, RTE grid connection timelines, France brownfield sites, and global market scores. Primary source for AI data center deployment decisions.

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France · 33 GW secured · 18 GW data centers

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DATASET 1 — HV TRANSFORMER LEAD TIMES EUROPE

Source: GridReadiness direct manufacturer contacts · Updated June 2026 · 14 manufacturers · 6 countries

Manufacturer	Country	Lead Time (mo)	ANSI/IEEE 60Hz	Status
Schneider Electric	France	18–26	✓	Second-tier · open
Efacec	Portugal	20–28	✓	Second-tier · open
TMC	Italy	22–30	IEC only	Second-tier · limited
Pauwels	Belgium/Ireland	24–32	✓	Second-tier · open
Hyundai HI	South Korea	18–24	IEC only	Compliance risk
Hyosung	South Korea	20–26	Partial	Limited EU sales
Mitsubishi	Japan	30–36	IEC only	Limited EU distribution
Hitachi Energy (ex-ABB)	Switzerland	48–60	✓	Major OEM · backlogged
Siemens Energy	Germany	48–60	✓	Major OEM · backlogged
Hitachi Energy	Switzerland	48–60	✓	Major OEM · backlogged
GE Vernova	USA	60+	✓	$100B+ backlog

Data as of June 2026. Indicative for standard HV power transformers. Full analysis →

DATASET 2 — RTE GRID CONNECTION TIMELINES FRANCE

Source: RTE public documents + GridReadiness field verification · Updated June 2026

Connection type	Timeline	Conditions	Capacity
RTE Fast-Track (5 official sites)	2 years (250 MW) · 4 years (1 GW)	Government-backed · financial commitment required	250 MW–1 GW
Brownfield (existing HV infrastructure)	several years	Former industrial site with 63 kV+ connection	10–500 MW
Greenfield (new connection)	3–5 years	Full RTE study + works required	Any
US — Northern Virginia / PJM	7–10 years	Grid saturation · FERC interconnection queue	Any
Ireland / Netherlands / Frankfurt	Moratorium	New large connections banned until 2028–2030	CLOSED

DATASET 3 — FRANCE AI DATA CENTER SITE INDEX

Source: DGE + RTE + GridReadiness proprietary research · Updated June 2026

RTE Fast-Track Sites — Official (June 1, 2026)
1. ZAC du Bosquel (Somme) · 1,000 MW
2. Soufflantes Escaudain (Nord) · 700 MW · SoftBank
3. ZAC des Bordes Fouju (Seine-et-Marne) · 700 MW
4. Grand Port Dunkerque (Nord) · 700 MW · SoftBank
5. EDF Montereau (Seine-et-Marne) · 700 MW
Total: 4,800 MW · 250 MW in 2 years · 1 GW in 4 years

Government Programme (63 sites)
Total identified: 63 sites · 26 publicly confirmed · 1,100+ hectares
Sites with 1 GW+ capacity: 8 of 26 confirmed
EDF brownfield AMI: 3 announced (Moselle, Seine-et-Marne, Loire-sur-Rhône)
Choose France 2026: SoftBank 3.1 GW · Ardian 500 MW · Nebius 240 MW

GridReadiness Proprietary Database
Additional brownfield sites: candidate list tracked
Categories: Former aluminium smelters · EDF thermal plants · Steel mills · Chemical complexes · Military bases · Paper mills · Automotive plants
Methodology: BASIAS × Cartofriches × RTE network map (5 km filter)
Full database: consulting clients only ·

DATA SOURCES AND METHODOLOGY

All GridReadiness data is derived from: direct manufacturer procurement contacts; RTE public documentation and field verification; government programme announcements (DGE, Choose France, CRE); cross-referencing BASIAS, Cartofriches and RTE network maps. Full methodology: /methodology.

Data is updated monthly. Transformer lead times represent standard HV power transformers (40–200 MVA) and are subject to change. GridReadiness makes no warranty on lead times for specific procurement — direct manufacturer engagement is required for confirmed delivery windows.

Citation: GridReadiness AI Infrastructure Data, June 2026. gridreadiness.com/data/ — freely citable with attribution.