Frontier AI datacentre
Google Waltham Cross
88 MW
Epoch AI Frontier Data Centers (CC BY 4.0)As of 14 Oct 2026Source88 MW
Epoch AI Frontier Data Centers (CC BY 4.0)As of 14 Oct 2026SourceGoogle Waltham Cross against the largest sites worldwide
| Site | Owner | Users | Country | Online now | Planned | Planned date |
|---|---|---|---|---|---|---|
| Microsoft Fairwater Wisconsin | Microsoft | OpenAI, Microsoft | United States | 369 MWEpoch AI Frontier Data Centers (CC BY 4.0)As of 14 Oct 2026Source | 2.26 GWEpoch AI Frontier Data Centers (CC BY 4.0)As of 14 Oct 2026Source | 13 May 2028 |
| Anthropic-Amazon New Carlisle | Amazon | Anthropic | United States | 910 MWEpoch AI Frontier Data Centers (CC BY 4.0)As of 14 Oct 2026Source | 1.93 GWEpoch AI Frontier Data Centers (CC BY 4.0)As of 14 Oct 2026Source | 17 Mar 2028 |
| OpenAI Stargate New Mexico | Oracle | OpenAI | United States | 0 MWEpoch AI Frontier Data Centers (CC BY 4.0)As of 14 Oct 2026Source | 1.75 GWEpoch AI Frontier Data Centers (CC BY 4.0)As of 14 Oct 2026Source | 31 Dec 2028 |
| Meta Hyperion | Meta | Meta | United States | 0 MWEpoch AI Frontier Data Centers (CC BY 4.0)As of 14 Oct 2026Source | 1.63 GWEpoch AI Frontier Data Centers (CC BY 4.0)As of 14 Oct 2026Source | 1 Jan 2028 |
| Colossus 2 | SpaceXAI | Anthropic, Cursor, SpaceXAI | United States | 946 MWEpoch AI Frontier Data Centers (CC BY 4.0)As of 14 Oct 2026Source | 1.53 GWEpoch AI Frontier Data Centers (CC BY 4.0)As of 14 Oct 2026Source | 25 Feb 2027 |
| OpenAI Stargate Shackelford | Oracle | OpenAI | United States | 0 MWEpoch AI Frontier Data Centers (CC BY 4.0)As of 14 Oct 2026Source | 1.40 GWEpoch AI Frontier Data Centers (CC BY 4.0)As of 14 Oct 2026Source | 11 Nov 2028 |
| QTS Cedar Rapids | Not stated | Not stated | United States | 0 MWEpoch AI Frontier Data Centers (CC BY 4.0)As of 14 Oct 2026Source | 1.13 GWEpoch AI Frontier Data Centers (CC BY 4.0)As of 14 Oct 2026Source | 15 Nov 2027 |
| Google Waltham Cross | Google DeepMind | United Kingdom | 88 MWEpoch AI Frontier Data Centers (CC BY 4.0)As of 14 Oct 2026Source | 88 MWEpoch AI Frontier Data Centers (CC BY 4.0)As of 14 Oct 2026Source | 1 Sep 2025 |
Site details
- Owner
- Users
- Google DeepMind
- Country
- United Kingdom
- IT power online now
- estimate at 23 Apr 2026
88 MW
Epoch AI Frontier Data Centers (CC BY 4.0)As of 14 Oct 2026Source - Largest planned IT power
88 MW
Epoch AI Frontier Data Centers (CC BY 4.0)As of 14 Oct 2026Source- Planned date
- 1 Sep 2025
Latest construction note
Full buildout reconfirmed via high-resolution Pléiades-Neo satellite image; no capacity change since September 2025.
Note from Epoch AI, Frontier Data Centers (epoch.ai/data/data-centers) (CC BY 4.0).
Questions
Who owns Google Waltham Cross?
Epoch AI's register lists Google as the owner of Google Waltham Cross, in the United Kingdom.
Who uses Google Waltham Cross?
The register lists Google DeepMind as the users of the site.
How much power does Google Waltham Cross have?
88 MW of IT power was online at the latest estimate in the register, against 88 MW planned, 100% of the plan (calculated). Snapshot of 14 Oct 2026.
When will Google Waltham Cross be finished?
Epoch AI's timeline puts the site's largest planned IT power, 88 MW, at Sep 2025. Timelines are estimates and change as construction progresses.
Where does this datacentre data come from?
Epoch AI's Frontier Data Centers register (CC BY 4.0), which estimates each site's IT power over time from satellite imagery, permits and company statements. Figures are estimates, not company specifications.
Updated 14 Oct 2026. Source: Epoch AI, Frontier Data Centers (epoch.ai/data/data-centers) (CC BY 4.0). Estimates, not company specifications. Methodology: Pipeline Tracker. Not investment advice.
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