How much water will this data center use?

Pick a county, enter the size, and get an estimate of the facility's water draw next to the local supply. You can also check a developer's water claim. It's free, open source, and every assumption is shown with its source.

The project

Use whatever the developer or news coverage says. Leave anything you don't know as “not disclosed”.

Where county or city

Size megawatts

Announcements usually give total power (“a 300 MW campus”). Pick IT load only if that's what was stated.

Cooling

Not disclosedShows the full range. This is the most common situation.

Evaporative / cooling towersEvaporates water to reject heat. Most water, least electricity.

Hybrid / adiabaticDry most of the year; sprays water on hot days.

Closed-loop / air-cooledLittle or no water for cooling, but more electricity.

Water source

Advanced assumptions

Average load share of capacity in use

65%

Campuses rarely run at their full announced power. Federal and state studies assume 50–67% on average.

Cycles of concentration towers only

How many times tower water is reused before it's flushed (blowdown). Higher means less water drawn.

PUE blank = typical for the cooling type

Choose a county or city to see the estimate.