Microsoft Fairwater AI Data Center - Mount Pleasant
Sponsors & Partners
Project Timeline
Current canonical record
Three massive buildings totaling 1.2 million square feet, 315-acre campus. Will house hundreds of thousands of Nvidia GB200 and GB300 GPUs. Fiber network long enough to circle the Earth 4.5 times (180,000 km). Construction required 46.6 miles of deep foundation piles, 26.5 million pounds of structural steel, 120 miles of medium-voltage underground cable, and 72.6 miles of mechanical piping.
Described as the world's most powerful AI datacenter. At peak construction, employed more than 3,000 construction workers. Once fully operational, will employ around 500 full-time employees. Campus acquired nearly 1,900 acres in Mount Pleasant.; $3.3B by 2026; 315 acres; $1.4B assessed value guarantee; 300-400 jobs; We Energies; TID 5 former Foxconn. April 2026 update: Microsoft CEO Satya Nadella said the Wisconsin Fairwater data center was going live ahead of schedule; Data Center Dynamics reported the update on April 20, 2026. Treat as initial operation/commissioning ramp, with full commissioning details not public. June 2026 Microsoft update: first Mount Pleasant Fairwater datacenter facility completed construction, brought equipment online and conducted startup activities in April, and is fully operational; Microsoft said nearly 10,000 construction workers contributed to the first facility, nearly 550 full-time employees were on site supporting it, and construction of the adjacent second facility was ongoing.
Record provenance
This page is generated from the reviewed project database snapshot. The record was last reviewed on 2026-07-17. Blank fields mean the value was not publicly disclosed or could not be reconciled safely; they do not mean zero.