United Kingdom's data centres draw 7.5 TWh of electricity a year, which places it 6th of the 33 countries this atlas carries a figure for.
That is 2.6% of everything the country generates — well above the 1.2% median across those countries.
Set against 2.6 GW of installed capacity, that implies a 33% load factor.
One metro is tracked here: London / Slough, at 1,120 MW and operating.
Its strongest showing anywhere in the atlas is Systems & Facility on the ownership basis, at #5 of 9.
It does not register at all on Memory & Storage or Networking.
4 suppliers are domiciled here, booking roughly $32bn between them; the largest is National Grid.
Its single strongest grip on the buildout is Nuclear & SMR, where firms domiciled here hold 5% of global supply in a sub-layer weighted 0.70 for how hard it is to substitute.
About $30bn of AI infrastructure investment has been announced for United Kingdom, though announced is not built — that figure is graded A.
National context
Grid friction
Multi-year transmission connection queue with reform in progress.
Where United Kingdom ranks
The same tables read three ways. A country can lead one basis and be invisible on another, and that gap is the whole point of the atlas.
| Tier | Physicalassets here | Ownershiprevenue booked | Controlcould stop you |
|---|---|---|---|
| Silicon | — | #8of 9 | #10of 10 |
| Memory & Storage | — | — | — |
| Networking | — | — | — |
| Systems & Facility | #9of 54 | #5of 9 | #5of 9 |
| Power & Grid | #6of 77 | #8of 17 | #12of 12 |
Data centre metros (1)
| London / Slough — OperatingEurope's largest market at 8.6% vacancy, adding 49 MW in H1 2026. Derived as the residual of the 3.8 GW FLAP-D total after the published Frankfurt and Paris figures. West London connection constraints have pushed projects to new sites. | 1,120 MW B |
Supply positions
Share of each global sub-layer held by firms domiciled here, and how hard that sub-layer would be to substitute. Those two multiplied are what the control basis ranks on.
Silicon
| Sub-layer | Share | Substitutability |
|---|---|---|
| Design & IP | 2% B | ×0.85 |
Strongest single grip: Design & IP — 2% × 0.85 substitutability weight.
Systems & Facility
| Sub-layer | Share | Substitutability |
|---|---|---|
| DC development | 6% C | ×0.50 |
| Colocation & neocloud | 6% B | ×0.45 |
Strongest single grip: DC development — 6% × 0.50 substitutability weight.
Power & Grid
| Sub-layer | Share | Substitutability |
|---|---|---|
| Nuclear & SMR | 5% C | ×0.70 |
Strongest single grip: Nuclear & SMR — 5% × 0.70 substitutability weight.
Suppliers domiciled here (4)
| National Grid — TSO, networksPower & Grid | $24bn |
| Arm — Instruction-set IPSiliconLicensing model gives influence far beyond its revenue. | $4bn |
| nVent Electric — Liquid cooling, enclosuresSystems & Facility | $3bn |
| Rolls-Royce SMR — Small modular reactorsPower & GridPre-revenue relative to programme scale. | $1bn |
Revenue is the group or segment figure closest to each tier's perimeter. Segment boundaries differ between issuers, so treat the split as indicative.