Project record, campus
Microsoft Mount Pleasant campus (Fairwater, Wisconsin)
Microsoft AI datacenter campus in Mount Pleasant, Racine County, Wisconsin. The first facility, called Fairwater, covers 315 acres with three buildings and 1.2 million sq ft under roof and runs a single cluster of NVIDIA GB200 servers. Microsoft reported it fully operational on 23 June 2026, after startup in April. A second facility next to it is under construction for completion in 2028. Microsoft estimates $4.7 billion of local hyperscale construction spend in Wisconsin between 2024 and 2028. Electrical capacity is not disclosed.
Reported figures
| Figure | What it measures | Delivery state | Scope and date | Used in totals | Source |
|---|---|---|---|---|---|
| USD 4.7 billion Modelled estimate 4,700,000,000 USD | Investment Local construction spend estimate, USD billions. Distinct from earlier headline investment figures. Source wording: "will have spent $4.7 billion between 2024 and 2028 locally on hyperscale construction in Wisconsin" | Announced Stage stated in source: Announced | campus 23 Jun 2026 | No. Modelled estimate. Totals use reported figures only. | news.microsoft.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.
Cooling
Closed-loop liquid cooling for over 90% of capacity, filled once and recirculated, heat rejected via fin coolers with 172 fans and a large water-cooled chiller plant. Remaining capacity uses outside air, switching to water on hottest days. blogs.microsoft.com (opens in a new tab)
What changed
- 23 Jun 2026 Microsoft's first Fairwater facility in Wisconsin is fully operational: Microsoft said the first Mount Pleasant facility was fully operational on 23 June 2026, with a second facility due in 2028. The site uses closed-loop liquid cooling for over 90% of capacity. Related: Microsoft, Microsoft Fairwater 1 (Mount Pleasant, Wisconsin), Microsoft second Mount Pleasant facility (Wisconsin), United States. news.microsoft.com (opens in a new tab)blogs.microsoft.com (opens in a new tab)
Phases and buildings
- Microsoft Fairwater 1 (Mount Pleasant, Wisconsin) Operating
- Microsoft second Mount Pleasant facility (Wisconsin) Under construction
Technologies
Sources (3), last checked 18 Oct 2026
- Microsoft completes construction on first datacenter facility in Mount Pleasant, Wisconsin (opens in a new tab), Microsoft Source, published 23 Jun 2026, accessed 18 Oct 2026
- Inside the world's most powerful AI datacenter (opens in a new tab), Microsoft (Official Microsoft Blog), published 18 Sept 2025, accessed 18 Oct 2026
- Made in Wisconsin: The world's most powerful AI datacenter (opens in a new tab), Microsoft On the Issues, published 18 Sept 2025, accessed 18 Oct 2026
Last checked 18 Oct 2026 by CoolPower Index research (automated, sourced). Report a correction.