GoKawiilReport finds data centers' electricity, not cooling, drives biggest water toll
A new analysis of seven states housing roughly half of America's data centers finds that generating the electricity these facilities consume uses far more water than cooling their servers does. Across Virginia, Texas, California, Illinois, Georgia, Ohio and Arizona, data center power demand draws about 3.4 trillion gallons of freshwater a year—about 12 times the combined annual water use of Los Angeles, Phoenix and Washington, D.C. Most of that electricity comes from water-dependent power plants, and two-thirds of them sit in regions already facing significant water stress or drought.
GoKawiil's interpretation of the reporting above, not reported fact.
As AI-driven data center construction accelerates, the industry's water footprint is largely hidden in the electricity supply chain rather than on-site cooling, meaning current sustainability metrics likely understate the true resource strain. Communities near water-stressed power plants could face heightened competition for scarce supplies, fueling local opposition and regulatory scrutiny of new projects. The findings suggest operators, utilities and policymakers need to factor grid-level water use into siting and clean-energy decisions, not just facility-level efficiency.
- Power generation, not server cooling, accounts for the largest share of data centers' water consumption.
- Seven key data center states use about 3.4 trillion gallons of water annually for electricity—12x the combined use of LA, Phoenix and D.C.
- 66% of water-dependent power plants supplying these states are located in areas facing medium-high to extremely high water stress.
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Published there as: “Water behind the watts: The hidden risk of powering data centers”
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