Microsoft building world’s most powerful AI datacenter in Wisconsin

Published 18/09/2025, 15:26
© Reuters.

Investing.com -- Microsoft CEO Satya Nadella announced Thursday that the company is building what it calls the world’s most powerful AI datacenter in southeastern Wisconsin.

The facility, named Fairwater, will feature "a seamless cluster of hundreds of thousands of NVIDIA GB200s" connected by fiber optic cables that could circle the Earth 4.5 times, according to Nadella’s post on X.

Nadella stated that Fairwater will deliver 10 times the performance of today’s fastest supercomputer, enabling unprecedented AI training and inference workloads.

The datacenter will use a liquid-cooled closed-loop system for cooling GPUs that requires no water for operations after construction. Microsoft plans to match all energy consumed with renewable sources.

Nadella emphasized that Fairwater is just one of several similar sites being developed across Microsoft’s more than 70 regions. The company has multiple identical Fairwater datacenters under construction in other U.S. locations, adding to AI infrastructure already deployed in over 100 datacenters worldwide.

The CEO highlighted Microsoft’s rapid expansion of computing power, noting that the company added over 2 gigawatts of new capacity last year – "roughly the output of 2 nuclear power plants."

Nadella said the project aims to create new jobs and expand opportunities while partnering with local communities to ensure sustainable development.

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