GRID · AI DATA CENTRE
Microsoft Fairwater Wisconsin
Microsoft Fairwater Wisconsin is the 6th-largest disclosed AI data-centre campus in the world by current power, drawing around 369 MW. It is operated by Microsoft for OpenAI, Microsoft, and it sits in United States.
What we know
At around 369 MW, Microsoft Fairwater Wisconsin is among the most power-hungry computing sites ever built, with an estimated 445,680 H100-equivalent accelerators of compute and a build cost estimated near $14.0 billion. These are estimates from Epoch AI’s Frontier Data Centers tracker (CC BY) — a curated set of the largest disclosed AI campuses, not a census, and currently US-heavy. This campus is located to a precise, published location (42.67, -87.89). Power, compute and cost figures are Epoch estimates that change as sites are built and disclosed. Snapshot taken 2026-06-24.