Project record, building
Google Waltham Cross data centre (Hertfordshire)
Google data centre at Waltham Cross in Hertfordshire, north of London, opened on 16 September 2025. Google announced it alongside a two-year £5 billion UK investment that covers capital expenditure, research and development and engineering including Google DeepMind. That figure is company-wide for the UK and is not the cost of this building. On the same day Google named Shell Energy Europe as its 24/7 carbon-free energy manager in the UK, including access to battery storage. Capacity has not been disclosed.
Reported figures
| Figure | What it measures | Delivery state | Scope and date | Used in totals | Source |
|---|---|---|---|---|---|
| GBP 5 billion Official source 5,000,000,000 GBP | Investment Company-wide UK capex, R&D and engineering over two years. Not a project budget. Never convert to MW. Source wording: "two-year £5 billion investment in the UK" | Announced Stage stated in source: Announced | company 16 Sept 2025 | No. Scope is company, not one physical project. Not attributable to this asset. | googlecloudpresscorner.com (opens in a new tab) |
Each figure is shown as reported, with its own definition. IT, facility, grid and thermal figures are never added together. Capacity definitions.
Power and grid
No site power architecture reported. Google reports a UK-wide arrangement with Shell to manage carbon-free supply and battery storage access, not specific to this building. googlecloudpresscorner.com (opens in a new tab)
What changed
- 16 Sept 2025 Data centre opened Related: Google. googlecloudpresscorner.com (opens in a new tab)
Notes
Investment figure unit: value 5 with unit currency means GBP 5 billion. See basis.
Sources (1), last checked 18 Oct 2026
- Google opens Waltham Cross data centre as part of two-year £5 billion investment in the UK (opens in a new tab), Google Cloud Press Corner, published 16 Sept 2025, accessed 18 Oct 2026
Last checked 18 Oct 2026 by CoolPower Index research (automated, sourced). Report a correction.