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Cobalt Data Centre Campus (Stellium)

Stellium Datacenters

Wallsend, North EastOperational Verified

Plant replacement application recorded on a third-party aggregator.

Key facts

Operator / developer
Stellium Datacenters
Location
Wallsend, North East, United Kingdom
Status
Operational
Facility type
Data centre
AI relevance
Not stated

Power & grid

Published capacity
  • 80 MW — Reported capacity, definition not publishedA megawatt figure was reported but the source does not define what it measures, so it is excluded from every total.
Grid position
Dual 40 MVA feeds from the 275kV transmission network (operator FAQ)
Power
Stellium states "80 MWs (designed to scale to 180 MWs) of REGO certified renewable power available" for the campus, without saying whether that is IT load, site power or grid connection, so the figure is shown but excluded from every total. The same operator FAQ states Stellium 1 is allocated 15 MW of that capacity, that halls are "3MW IT data halls", and that dual 40 MVA feeds run from the 275 kV transmission network to Data Centre 1 Sector 1. A third-party directory (Colo-X) instead describes a 32 MW campus of three 8 MW buildings, also undefined. The conflict is unresolved and no figure is treated as an IT load.
Backup fuel
Mixed
On-site generation
FG Wilson 1,500kVA diesel generators (N+1) run on HVO per the operator, with fuel for 48 hours at full load; 2.3 MWh battery and solar PV (about 380,000 kWh a year).
PUE target
1.24

Planning

Planning route
Local planning (TCPA)
Planning reference
24/01678/FULM
Planning decision
Application Permitted
Decision date
8 May 2025

Benefits vs drawbacks

Benefits

  • 80MW available on REGO-certified renewable supply, designed to scale to 180MWSource
  • Operating PUE of 1.24 with free-cooling chillersSource
  • Anchor site of the North East AI Growth Zone at Cobalt ParkSource

Drawbacks

  • Diesel generator fleet (HVO-fuelled per operator) with 48 hours of on-site fuelSource

Timeline

  1. North Tyneside Council permitted the application (24/01678/FULM).

    Source

Sources

Last verified

19 August 2026

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