Microsoft Fairwater Wisconsin
AI data center in Mount Pleasant, WI, United States: operational.
- Location: Mount Pleasant, WI, United States
- Developer: Microsoft
- Tenant: OpenAI
- Status: operational
- Estimated cost: $7.3B
Microsoft Fairwater Wisconsin is a AI data center project located in Mount Pleasant, WI, United States, currently operational. It is being built by Microsoft for tenant OpenAI. The estimated build cost is $7.3B. This project is one of thousands of data-center facilities tracked by Data Center Index across WI, United States, covering operational, under-construction, announced, and permitted sites.
Notes
Users: OpenAI, Microsoft; Epoch 'Current power' = 369 MW (may include campus expansions); Cost modeled at ~$44B/GW by Epoch AI
Public companies linked to Microsoft Fairwater Wisconsin
Developers, tenants, and suppliers tracked by Data Center Index with exposure to this project:
- Microsoft (MSFT), developer · hyperscaler
- Microsoft (MSFT), tenant · hyperscaler
- OpenAI (OPENAI), tenant · ai lab
- Eaton (ETN), transformer switchgear · power equipment · high DC exposure
- Emerson Electric (EMR), power management · power equipment · mid DC exposure
- ABB Ltd (ABBNY), transformer switchgear · power equipment · mid DC exposure
- Schneider Electric (SBGSF), transformer ups · power equipment · mid DC exposure
- Johnson Controls (JCI), hvac · cooling · mid DC exposure
- Cummins (CMI), genset · power equipment · mid DC exposure
- Ciena Corp (CIEN), interconnect · networking · high DC exposure
- Jacobs Solutions (J), engineering · construction · mid DC exposure
- Micron Technology (MU), memory supplier · chip fab · high DC exposure
Related data center projects
- Microsoft Pecos (Reeves County), 2 GW, Pecos, TX, United States · announced
- Azure Northern Virginia, 1 GW, Northern Virginia, VA, United States · operational
- Microsoft Australia AI Expansion, 1 GW, Sydney, Melbourne, Canberra, Australia · operational
- Microsoft India AI Infrastructure (Hyderabad / Pune), 600 MW, India · under construction
- Microsoft Azure UK South Region (London), 500 MW, London, United Kingdom · operational
- Microsoft São Paulo AI Infrastructure (Expansion), 500 MW, São Paulo, Brazil · operational
- Microsoft Sweden Central AI Infrastructure, 500 MW, Gävle, Sweden · operational
- Microsoft Azure Poland Central (Warsaw), 500 MW, Warsaw, Poland · operational
Frequently asked questions
- What is Microsoft Fairwater Wisconsin?
- Microsoft Fairwater Wisconsin is an AI data center project in Mount Pleasant, Wisconsin tracked by Data Center Index. Its status is operational, and it is still adding buildings.
- Where is Microsoft Fairwater Wisconsin?
- Microsoft Fairwater Wisconsin is in Mount Pleasant, Wisconsin. Every tracked Wisconsin campus, with counts and capacity, is at https://datacenterindex.ai/markets/wisconsin.
- Who is building Microsoft Fairwater Wisconsin?
- Microsoft is developing Microsoft Fairwater Wisconsin, with OpenAI named as the tenant.
- When will Microsoft Fairwater Wisconsin come online?
- Microsoft Fairwater Wisconsin is already operating. The next building is expected to go live 2028.
- Which public companies are linked to Microsoft Fairwater Wisconsin?
- Data Center Index links 12 tracked public companies to Microsoft Fairwater Wisconsin: Microsoft (MSFT), Microsoft (MSFT), OpenAI (OPENAI), Eaton (ETN), Emerson Electric (EMR), and 7 more. Each is a developer, tenant or supplier with a sourced link to the project.
Sources
- AI Data Center Index facility profile: Microsoft Port Washington Wisconsin Stargate (epoch · aggregator · 2026-04-29)
- Residents sue Microsoft over noise from Mount Pleasant data center (wisn.com · press · 2026-07-02)
- Microsoft (news.microsoft.com · press · 2026-06-23)
- Made in Wisconsin: The world's most powerful AI datacenter (blogs.microsoft.com · press · 2025-09-18)
- Mount Pleasant datacenter project update (local.microsoft.com · press · 2026-09-20)
- WisBusiness (wisbusiness.com · press · 2026-06-23)
- FOX6 Milwaukee (fox6now.com · press · 2025-09-18)