this post was submitted on 23 Nov 2024
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Writing a 100-word email using ChatGPT (GPT-4, latest model) consumes 1 x 500ml bottle of water It uses 140Wh of energy, enough for 7 full charges of an iPhone Pro Max

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[–] vinnymac@lemmy.world 28 points 1 day ago (13 children)

Why does the article make it sound like cooling a data center results in constant water loss? Is this not a closed loop system?

I’m imagining a giant reservoir heat sink that runs throughout a complex to pull heat out of the surrounding environment where some liquid evaporates and needs to be replenished. But first of all we have more efficient liquid coolants, and second that would be a very lazy solution.

I wonder if they’ve considered geothermal for new data centers. You can run a geothermal loop in reverse and use the earth as a giant heat sink. It’s not water in the loop, it’s refrigerant, and it only needs to be replaced when you find the efficiency dropping, which can take decades.

[–] JPAKx4@lemmy.blahaj.zone 8 points 1 day ago (1 children)

It highly depends on every data center, but it is very likely that they do use municipal water for cooling. Mainting a Reservoir is extremely expensive for the amount of thermal mass it requires, these things kick off HEAT.

[–] bobs_monkey@lemm.ee 3 points 1 day ago (1 children)

I don't know why they aren't using reclaimed water from treatment plants. I don't see why potable water is necessary as long as the substitute isn't corrosive, but I might be missing something here.

[–] catloaf@lemm.ee 3 points 1 day ago

You'd have to get the gray water in, and it's more efficient to just continue treating it and using the municipal water system.

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