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US data centers tripled annual water consumption to 17B gallons

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Re: US data centers tripled annual water consumption to 17B gallons

#2
Context: 1 acre-foot, a usual unit of measure for agricultural water, is a bit under 1/3 of a million gallons. 17B gallons is about 52k acre-feet.

Vs. just the state of Arizona's historic water allocation, from just the Colorado River system, is over 2M acre-feet. Which, if you're familiar, has created a whole industry of growing extremely water-hungry but rather low-value crops in the desert.

The latest Federal plan to cope with long-term drought in the Colorado River system will cut Arizona's allocation by about 750,000k acre-feet. Vs. that headline about 52k, across the whole US of A.

Yes, locally, data center water use can be a serious issue. And it's useful rhetoric if you are already an anti-data center partisan. But if you're thinking that cutting off water to DC's could fix anything more than some local & isolated problems - sorry, no.

Re: US data centers tripled annual water consumption to 17B gallons

#5
post #2

Context: 1 acre-foot, a usual unit of measure for agricultural water, is a bit under 1/3 of a million gallons. 17B gallons is about 52k acre-feet. Vs. just the state of Arizona's historic water allocation, from just the Colorado River system, is over 2M acre-feet. Which, if you're familiar, has created a whole industry of growing extremely water-hungry but rather low-value crops in the desert . The latest Federal pla…

I want to understand if we're really comparing apples to apples. What does 'consumption' mean in these contexts? How much of the water returns to the local water table vs evaporation vs becomes waste water?

Re: US data centers tripled annual water consumption to 17B gallons

#7
post #2

Context: 1 acre-foot, a usual unit of measure for agricultural water, is a bit under 1/3 of a million gallons. 17B gallons is about 52k acre-feet. Vs. just the state of Arizona's historic water allocation, from just the Colorado River system, is over 2M acre-feet. Which, if you're familiar, has created a whole industry of growing extremely water-hungry but rather low-value crops in the desert . The latest Federal pla…

Most of those partisans have no idea what other sources of water consumption are by magnitude. They seem to quote any number as if it is a lot. A billion gallons is a lot. 500000 gallons is not a lot.

Re: US data centers tripled annual water consumption to 17B gallons

#8
post #3

What does it mean to be consumed in this context? After used for cooling isn’t it clean enough for drink and other uses? Can’t it go back into other systems? Can’t it be used for agriculture?

Exactly. Is that figure about the water 'flowing' through the datacenter? I want to believe they would not just dump it after use.

Re: US data centers tripled annual water consumption to 17B gallons

#9
post #3

What does it mean to be consumed in this context? After used for cooling isn’t it clean enough for drink and other uses? Can’t it go back into other systems? Can’t it be used for agriculture?

This refers to water that is evaporated for cooling of both the datacenters themselves and the power plants that give them electricity. The remaining water after evaporation is so full of minerals that it has to be discharged as sewage.

This evaporation process is used to cool the closed loop of fluid that actually moves heat in and out of the data halls.

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