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Mount Pleasant, Wisconsin site, reported live June 2026, linked by dedicated fibre to the Atlanta Fairwater campus.
What is established
Partially operational. 369 MW announced (critical it load); expected Jun 2026; owned or developed by Microsoft; power source: Grid.
What is not disclosed
Accelerator count, hardware platform, project capex, named tenant, cooling technology — not disclosed by any source on this page. Recorded as unknown, never as zero.
Analyst note
Closed-loop liquid cooling, reported to eliminate operational water consumption. Reported as exceeding 350 MW and scaling further, so 350 MW is a floor rather than a point estimate. UPDATE 2026-08-01: Microsoft announced completion of the first Mount Pleasant facility on 2026-06-23 ('now fully operational'). Epoch estimates 369 MW IT currently, projecting 2,263 MW by Q2 2028 with the second facility (2028); Microsoft has separately proposed two further Mount Pleasant campuses (~$13.3B, ~2 GW). No operator megawatt figure exists, so the capacity stays an estimate.
Physical work is under way and the evidence includes a primary source.
Power readiness
Capacity basis stated
The source distinguishes IT load from total site power or on-site generation.
Derived from the evidence on this page by a published rule, not a model. How this is calculated.
42.7089, -87.8917
The expected opening date has passed with no actual opening recorded. This project is in the verification queue.
No companies linked to this project yet.
| Metric | Value | Confidence | As of | Basis / methodology | Source |
|---|---|---|---|---|---|
| Power | 350 MW | Estimated | Not disclosed | Basis: IT load. Epoch AI's satellite-derived directory estimate — an analyst figure, not an operator statement, recorded at ESTIMATED confidence. | Sherwood News |
Microsoft · Jun 23, 2026 · accessed Aug 1, 2026
With our Fairwater datacenter now fully operational, Wisconsin is now home to the world's most powerful supercomputer.
Reliability
95/100
Sherwood News · Not disclosed · accessed Jul 26, 2026
Trade-press compilation of announced capacity. Figures require primary-source confirmation.
Reliability
65/100
Closed-loop liquid cooling, reported to eliminate operational water consumption. Reported as exceeding 350 MW and scaling further, so 350 MW is a floor rather than a point estimate. UPDATE 2026-08-01: Microsoft announced completion of the first Mount Pleasant facility on 2026-06-23 ('now fully operational'). Epoch estimates 369 MW IT currently, projecting 2,263 MW by Q2 2028 with the second facility (2028); Microsoft has separately proposed two further Mount Pleasant campuses (~$13.3B, ~2 GW). No operator megawatt figure exists, so the capacity stays an estimate.
Update: first facility complete and fully operational (Microsoft, June 2026); estimate refined 350→369 MW IT; status → PARTIALLY_OPERATIONAL
Aug 1, 2026
System
Created from Sherwood News reporting.
Jul 26, 2026
System
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