Microsoft’ s AI datacenter in Wisconsin leverages one of the world’ s largest chiller plants – operating in a closed-loop system
Within this landscape, AI-optimised water strategies – from advanced cooling design to reuse and non-potable sourcing – are becoming critical tools for sustainable data centre growth.
Microsoft plans to embed advanced cooling technologies into its nextgeneration data centres, systems that dramatically reduce the need for potable water in cooling operations. These designs, already deployed in locations such as Wisconsin and Georgia, rely on closed-loop liquid cooling to recirculate heat transfer fluids continuously.
The concept is simple but transformative: eliminate the openwater cooling towers that dominate legacy facilities and instead create self-contained thermal systems that use orders of magnitude less water. In environmental terms, this means a dual benefit – lowering total water withdrawals and reducing the risk of discharge or evaporation losses.
By 2030, Microsoft has pledged a 40 % improvement in data centre wateruse intensity across its global estate, anchoring this target within its goal to be water positive by replenishing more than it withdraws in local watersheds.
Lessons from Quincy and beyond The operational details behind these AI-optimised water practices reflect lessons learned from earlier projects in arid regions.
In Quincy, Washington – one of the company’ s longest-running data centre hubs – Microsoft collaborated with city officials to create the Quincy Water Reuse Utility. The facility recycles and recirculates process water used in cooling, ensuring that only non-potable sources are drawn for industrial use and easing pressure on local groundwater.
150 March 2026