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by Hans Bader
Amazonโs data centers are using water more efficiently than in the past. A company report shows that โAmazonโs data centers used just 0.12 liters of water per kilowatt-hour of compute in 2025, about one-seventh of the industry average and less than half of Amazonโs rate of 0.25 liters in 2021,โ notes The Doomslayer.
Amazon News says that
When data centers use water for cooling, one of the most important metrics is how efficiently they use that waterโmeaning how little water they use for each unit of compute. Amazon announced that its global data center operations used just 0.12 liters of water per kilowatt-hour (L/kWh) in 2025, a rate thatโs over 7x more efficient than the industry average of 0.84 L/kWh.
In other words, we use far less water per unit of compute than others in the global data center industry, which as a whole accounts for less than 0.5% of all industrial water use globally.
And weโre continuing to get even more efficient year over year. These efficiency gains are the result of years of investment in custom cooling technology, smarter systems, and a commitment to minimize water use wherever possible.
A think-tank says that โthe total water use of all U.S. data centers constitutes less than 0.5% of American freshwater use and there is not a single instance of AI infrastructure raising water prices anywhere in America. AI data centers are a boon for the country, driving economic growth.โ The largest U.S. data center consumed less water than three square miles of farmland did.
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