Microsoft Fairwater Wisconsin
Mount Pleasant, Wisconsin, United States
Microsoft Fairwater Wisconsin is an operational AI data center in Mount Pleasant, WI, USA, with AI chips owned by Microsoft and used by OpenAI (likely) and Microsoft (likely). It hosts an estimated 446k H100-equivalent chips, scaling toward a projected 4,528k H100-equivalent chips — supported by 369 MW of IT power, rising to 2,263 MW — at a capital cost of $14.0 B, rising to $85.7 B. We estimate that it uses Nvidia B200 chips. The timeline of IT power and compute capacity is based on satellite imagery, company disclosures, regulatory filings, chip availability, and chip efficiency. Microsoft describes Fairwater Wisconsin as its most powerful data center yet, likely providing training compute for OpenAI.
Satellite imagery
