Tech Insider Review Highlights Water Demand in Data-Center Cooling
DataNews Editorial Team
Tech Insider published an analysis on October 27 examining why data centers can have high water demand, linking server heat loads to evaporative cooling. Citing WSLS, the article said a 100 MW data center can use more than 2 million gallons of water per day.
- Tech Insider cited a WSLS estimate that a 100 MW data center can use more than 2 million gallons of water per day.
- The cited figure is an illustrative benchmark, not a metric for a named data-center project.
- Cooling-tower evaporation, power-generation water withdrawals and closed-loop recirculation are distinct water-accounting categories.
- Higher rack densities associated with AI workloads could heighten scrutiny of water availability and disclosure.
Tech Insider’s October 27 analysis examines the water implications of data-center cooling, citing a WSLS report from October 26 that estimated a 100 MW data center can use more than 2 million gallons of water per day.
The article frames the issue around heat rejection: virtually all electricity consumed by processors ultimately becomes heat that must be removed. It distinguishes between water consumed through cooling-tower evaporation, water withdrawals associated with power generation, and water recirculated in closed-loop systems. Those categories are material because they measure different aspects of a facility’s water footprint.
The publication also links the issue to AI infrastructure, where higher rack power is increasing scrutiny of data-center water use and disclosure. For operators, water efficiency and heat-rejection architecture could become more significant alongside power availability when evaluating new capacity. This may increase attention to local water infrastructure, reporting requirements and the operational trade-offs between energy use and water use.
As rack densities and AI workloads rise, cooling-system selection, water availability and water-use disclosure are becoming more material to data-center siting and operations. The water trade-off is increasingly connected to operators’ power and thermal-management strategies.
- — / October 27, 2026 · EnglishSource →
This article was prepared by the DataNews editorial team based on the sources listed above.