Data centres in London
Oct 2026: 37 projects in the pipeline around London, 23 permitted or being built.New grid connections paused since 30 Jun 2025. Wholesale power €94/MWh in 2025.
Pipeline movement, last 12 months
28 milestones ·
217 data centres on record around London
Projects by stage
Who is building in London
Capacity by stage
- Facility power, all stages
- 1,410 MW
- Facility power, under construction
- 333 MW
- Projects
- 37
Stated by each project, . Bases are never added together.
| Stage | IT load, MW | Facility power, MW | Projects |
|---|---|---|---|
| Announced | 122.5 | 200 | 3 |
| In planning | 372 | 355 | 11 |
| Permitted | 568 | 522 | 19 |
| Under construction | · | 333 | 4 |
| In service | · | · | 0 |
Premium Premium adds the quarterly series and all 37 projects. Frankfurt is open in full with a free account.
Market economics, London
PremiumPremium adds build cost, rents and power prices for London. Frankfurt is open in full with a free account.
- Construction cost
- Premium figure
- EUR m per MW
- Mar 2026
- Colocation, wholesale
- Premium figure
- EUR per kW a month
- Jun 2026
- Colocation, 20 MW and more
- Premium figure
- EUR per kW a month
- Aug 2026
- Business electricity
- Premium figure
- EUR per MWh
- H1 2026
- Grid connection wait
- Premium figure
- years
- Sep 2026
- Permitting
- Premium figure
- months
- 2026
- Property tax
- Premium figure
- EUR k per MW a year
- Aug 2026
- Staff cost
- Premium figure
- EUR k per FTE a year
- 2025
Operators in London
Where the data centres are around London
What changed
5 milestones since 1 Aug 2026; the newest is from Sep 2026.
Power and grid for London
Paused
New grid connections are paused (United Kingdom-wide, transmission, since 30 Jun 2025). Every country’s grid connections
Over a year, country level
- Grid carbon, latest full-year average
- 217g CO₂/kWh
- 17th cleanest of 30 countries; 64% renewable or nuclear
- Wholesale power, 2025 average
- 94€/MWh
- 14th cheapest of 30
Climate at London
- Hours a year above 27 °C dry-bulb
- 61h
- mean of 2016 to 2025
- Hours a year above 32 °C dry-bulb
- 4h
- worst year 17 h
- Hours a year above 20 °C wet-bulb
- 45h
- limit for evaporative cooling
Fibre latency from London
| To | Round trip, minimum | Path length | Path |
|---|---|---|---|
| Brussels | 3.5 ms | 357 km | Mapped fibre route |
| Paris | 4.0 ms | 409 km | Mapped fibre route |
| Amsterdam | 4.0 ms | 411 km | Mapped fibre route |
| Dublin | 5.2 ms | 529 km | Mapped fibre route |
| Frankfurt | 7.0 ms | 712 km | Mapped fibre route |
| Zurich | 8.8 ms | 900 km | Mapped fibre route |
| Munich | 10.0 ms | 1,017 km | Mapped fibre route |
Rules and dates
Next dates
- 1 Jan 2027the United Kingdom’s amended Climate Change Agreements regulations come into force and cover data facilities with an electricity supply of at least 200 kW
Formal refusals and bans since 2025
No area-wide rule recorded for London.
Other markets
Sources
Copernicus Climate Change Service (ERA5), Department for Energy Security and Net Zero, GOV.UK, London Assembly Planning and Regeneration Committee, London Borough of Havering, London Borough of Hounslow, NESO, Ofgem, Old Oak and Park Royal Development Corporation, Planning Inspectorate, Slough Borough Council, Thurrock Council.