Water consumed on site / year43.8 million liters11.6 million U.S. gallons
Average on-site water / day120 thousand litersAverage, not hottest-day demand
IT: 87.6m kWh Support: 26.3m kWh
What do the units mean? See the math and limits.
Power is how fast energy is used. MW means megawatts. 1 MW is 1,000 kilowatts. Energy adds up over time. A kWh is one kilowatt used for one hour.
PUE compares whole-building power with IT power. At 1.30, 1 unit for computers needs 0.3 extra units for cooling and other support. WUE counts liters consumed at the site for each IT kWh.
IT energy = average IT MW × 1,000 × 8,760 hours. Whole-building energy = IT energy × PUE. Water consumed = IT energy × on-site WUE. U.S. gallons = liters ÷ 3.785411784.
The model excludes off-site water used to generate electricity, peak demand, bills, noise, pollution, and local supply. Support power includes more than HVAC. A reused liquid loop does not mean the whole plant uses no water.
You chose how much work the computers do—and how the building handles heat.
At your settings, this pretend building uses 113.9 million kWh of energy in one year. It consumes 43.8 million liters of water at the site in one year. That is about 120,000 liters a day, on average.
Some energy does the computer work. The rest helps run cooling and other building gear. A kWh counts energy. A liter measures water.
These are made-up teaching settings. The math holds them steady for a whole year. A real building changes with its work, weather, and cooling plan.
Three cooling stories. The same computer work.
Each story below runs the computers at your chosen 10 MW. Only the cooling example changes. This helps you compare the choices fairly.
Story 1
Dry cooling
Air helps carry heat away. In this pretend setup, the building uses the least water at the site and the most energy of our three examples.
Energy for the whole building / year
131.4 million kWh
Water consumed at the site / year
4.4 million liters
What we learned: We saved water here, but used more energy.
Story 2Your current choice
Hybrid cooling
Hybrid means a mix. A real system may use different cooling methods as the weather changes. Our pretend mix lands between the other two examples for both energy and water.
Energy for the whole building / year
113.9 million kWh
Water consumed at the site / year
43.8 million liters
What we learned: This example sits in the middle. A real building needs its own plan.
Story 3
Evaporative cooling
Some water turns into vapor, like water drying from a wet shirt. That helps carry heat away. Our pretend setup uses the least energy and the most water at the site of these three examples.
Energy for the whole building / year
105.1 million kWh
Water consumed at the site / year
105.1 million liters
What we learned: We saved energy here, but used more water at the site.
These three settings were invented to teach a tradeoff. They do not rank all dry, hybrid, or evaporative systems. Real results depend on the design and the place. Water used to make electricity somewhere else is outside this model.
The big lesson: A cooling choice can change energy and water needs. Adding neighbors reminds us to ask how a real place and its people may be affected.
You tried the lab. Now tell us what matters to you. No name or email is needed.
This is an open, voluntary learning poll about a hypothetical nearby data center. It is not a permit vote or a representative survey. A ZIP code shows a broad area, not your exact location.
04An answer returns. Cooling gear moves the heat away.
A center might be one room or a whole campus. Not every center runs AI. HVAC means heating, ventilation, and air conditioning. In these buildings, cooling is a big part of the job.
Estimated U.S. data-center electricity use in 2023.
4.4%
Estimated share of U.S. electricity in 2023.
66 billion L
Estimated direct U.S. data-center water consumption in 2023.
Historical estimates from the 2024 DOE/LBNL report. TWh means a billion kilowatt-hours. Direct consumption is different from water taken from a source and excludes water used to produce electricity elsewhere.