#data-centre-water-consumption

Around 80% of Virginia localities with data-center activity have NDAs in place. Where reporting is mandatory it is widely ignored: the EU database's first cycle saw 36% participation with no consequences for the rest.

Evaporative cooling consumes 1 to 9 litres per kWh on site, and the electricity behind it carries roughly ten times more embedded water. National totals look trivial while single cities reach 40% of municipal use, so the harm is basin-scale and invisible in aggregate.

Require each facility above a size threshold to report metered energy, water withdrawal and consumption to a public register, with a real penalty for non-reporting, and prohibit local NDAs that cover utility impacts. The EU tried this without penalties and got 36% participation.

Condition data-centre cooling permits on treated municipal effluent, brackish groundwater, or industrial process water by default, with potable connection allowed only by explicit exception. Microsoft's San Antonio site reports 79% of consumption from recycled or non-potable sour

Fill the cooling loop once and reject heat mechanically instead of by evaporation, eliminating ongoing water draw. Microsoft claims this avoids over 125 million litres per facility per year. The trade is electricity, and no operator has published the PUE penalty.

A public records case documenting the cost of obtaining basic operating data without a mandatory register. The city of The Dalles litigated for 13 months to block a newspaper's public records request for Google's water…

The first mandatory facility-level sustainability reporting regime for data-centers, established under the recast EU Energy Efficiency Directive, with its first reporting cycle in 2024. Participation was 36% despite the…

Microsoft announced its closed-loop, zero-water-evaporation datacentre design in December 2024, naming Mount Pleasant, Wisconsin and Phoenix, Arizona as the first sites, with further builds coming online from late 2027.…

Google's original Canelones facility design required approximately 7.6 million litres of potable water per day for evaporative cooling. During Uruguay's 2023 drought, Montevideo's utility blended brackish estuary water…