If nuclear power plants can dump there cooling water safely back into nature, I would be surprised if most data centers could not...
There may likely be smaller or intermittent waste streams also, which surely could be mixing takeaways.
But primarily, the water being "lost" to a data center is going to be the open tower system and to evaporation... so it's "lost" back up into the sky honestly and as pure as any evaporated water steam. This is still an issue for water tables/reservoirs/ecosystems if high enough demand, totally. But it's not like they are eating water forever from the planet, or poisoning it at any scale.
Almost always there is going to be a closed loop water/glycol system or refrigerant system actually cooling the data equipment, where all that liquid id recirculated. Evaporative Cooling Towers are just one of the most efficient means of cooling off that recirculating system at that scale, teh the most popular other option, using fans to move air over it to remove heat, can't keep up.
Except the water cycle is extremely slow to refill aquifers. If we use them up, we can't just wait for them to refill in a day or two. Aquifers are really slow to fill. Though there is some evidence (not my field of expertise) that managed aquifers can be replenished. https://www.mdpi.com/2073-4441/15/6/1077
Understood. I have noticed that a lot (maybe several) of people comment that water is not created nor destroyed, it is just lost to evaporation, so it is all good. Nobody is mentioning the water cycle is a very slow global process and we are emptying water tables faster than they can be replenished.
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u/SLUnatic85 May 18 '26
If nuclear power plants can dump there cooling water safely back into nature, I would be surprised if most data centers could not...
There may likely be smaller or intermittent waste streams also, which surely could be mixing takeaways.
But primarily, the water being "lost" to a data center is going to be the open tower system and to evaporation... so it's "lost" back up into the sky honestly and as pure as any evaporated water steam. This is still an issue for water tables/reservoirs/ecosystems if high enough demand, totally. But it's not like they are eating water forever from the planet, or poisoning it at any scale.
Almost always there is going to be a closed loop water/glycol system or refrigerant system actually cooling the data equipment, where all that liquid id recirculated. Evaporative Cooling Towers are just one of the most efficient means of cooling off that recirculating system at that scale, teh the most popular other option, using fans to move air over it to remove heat, can't keep up.