You are looking at : Europe Europe 1,557 data centers · 86 upcoming projects · edition ofJuly 19, 2026

Fleet figures

What public data says about data centers, aggregated site by site. Every figure is dated, sourced and recomputable.

The figure of this edition — on the selected territory

62%

of the fleet is connected to an already-saturated substation.

The fleet is here. The grid already lacks headroom.

Grid operators' hosting-capacity registers · Grid hosting capacity — Caparéseau (RTE) (France) · n = 713 · 6 of 17 countries · July 19, 2026 · v0.3.0

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Europe

ⓘ This is not a ranking. It is the photograph of a territory: what it already hosts, what it can still absorb, and what public files actually allow to know.

1. Can you still build here?

The fleet was built on land already taken — but connection queues keep growing.

62%

of the fleet is connected to an already-saturated substation.

What it meansNew grid connections can become longer, costlier or more uncertain.

Grid operators' hosting-capacity registers · Grid hosting capacity — Caparéseau (RTE) (France) · n = 713 · 23 sites with no published value — excluded and counted apart 6 of 17 countries

36%

of sites sit in a basin under high water stress or water crisis.

What it meansCooling choices become a territorial question, not only a technical one.

WRI Aqueduct 4.0 · WRI Aqueduct 4.0 · VigiEau (France) · n = 1,545 · 12 sites with no published value — excluded and counted apart 17 countries

93%

of the fleet is built on already-artificialized soil — not on farmland or natural land.

What it meansThe fleet grows mostly on already-transformed land — not every new project follows that logic.

Corine Land Cover (EEA) · Land use — IGN API Carto (France) · n = 1,553 · 4 sites with no published value — excluded and counted apart 17 countries

All the figures (3 more)

62%

of sites face a high or critical grid-connection queue.

Grid operators' connection queues · Connection queues — Caparéseau (RTE) (France) · n = 602 4 of 17 countries

20%

of sites border a protected natural area, within one kilometre.

Protected areas — EEA CDDA / Natura 2000 · Natura 2000 & ZNIEFF — INPN / IGN (France) · n = 1,553 17 countries

24%

of sites neighbour a high-hazard industrial site, within 2 km.

National registers of high-hazard industrial sites · Classified installations — Géorisques (France) · n = 918 12 of 17 countries

2. What do we really know about the projects?

Operators disclose their capacity — but the heat is wasted almost everywhere.

17%

of sites disclose their electrical capacity — the basic figure of any public debate.

What it meansThe basic figure of any public debate is usually available.

Operators' public disclosures · n = 1,557 17 countries

6%

of sites publish their real energy efficiency (PUE). Claimed efficiency is never proof — publishing is the first step.

What it meansClaimed efficiency is never proof — publishing is the first step.

Operators' public disclosures · n = 560 · 525 sites with no published value — excluded and counted apart 2 of 17 countries

<1%

of sites declare recovering their waste heat (heat networks, nearby facilities) — the first lever of a good project.

What it meansBetween intention and implementation, the gap remains huge.

Operators' public disclosures · n = 408 · 406 sites with no published value — excluded and counted apart France only

3. Where is the fleet heading?

The tracked fleet is already running — but what's coming doesn't always state its capacity.

95%

of the tracked fleet is already operating — we measure what exists, not only what is promised.

What it meansWe measure what exists first, not only what is promised.

ScoreMyDataCenter corpus — project status · n = 1,557 17 countries

6,019 MW

announced across projects not yet in service (86 projects — 61 do not disclose their capacity).

ScoreMyDataCenter corpus — announced & permitting projects · n = 86 7 of 17 countries

54

projects under citizen opposition or moratorium — recorded and sourced, never graded on that basis.

What it meansSourced facts, never a grade — context.

Watch layer — sourced facts, never a grade · n = 54 10 of 17 countries

4. What weighs most here?

The territory's constraints, ranked by the share of sites concerned — a descriptive ranking, never a grade.

1

Transparency

94%

of sites do not publish their real efficiency.

2

Power grid

62%

of sites near a saturated substation.

3

Water

36%

of sites in high water-stress areas.

4

High-hazard sites

24%

of sites within 2 km of a high-hazard industrial site.

5

Protected areas

20%

of sites within 1 km of a protected natural area.

recomputed per perimeter: share of sites concerned by each constraint

5. Three projects that tell this territory

A mechanical, published selection — the most common profile, the most constrained, the best documented. Real situations behind the aggregates.

The most common profile

LyonIX 1 IN2P3 — Villeurbanne (69)

Site gradeC
  • Operational · capacity not disclosed
  • Connected to an already-saturated substation
  • On already-artificialized soil

criterion: the territory's modal profile (status, grid, soil, most frequent grade)

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The most constrained

Data center Axtom Blanquefort — Blanquefort (33)

Site gradeD
  • 5 cumulated territorial constraints
  • Connected to an already-saturated substation
  • In a high water-stress area

criterion: highest cumulated territorial frictions in the perimeter

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The best documented

Campus IA Fouju — Fouju (77)

Site gradeE
  • Documentary confidence: high — 81%
  • Permitting

criterion: highest documentary-confidence score

View the fiche →

6. How to read these figures?

No figure on this page is written by hand.

1,557sites analysed one by one28%average coverage — the gap is displayed100%recomputable (open data, grid and engine)1same method for every territory100%of figures linked to their sources

Figures change when facts change — never to fit the story.

See the full method →
ScoreMyDataCenter is an independent observatory. No operator funding. No proprietary data. No complacency.