Nvidia's 45°C cooling design cuts data center water use to near zero

Re:Nvidia's 45°C cooling design cuts data center water use t... by mschuster91 on Thursday June 25, 2026 @05:44AM (#48671179)

> Main problem is that it wouldn't work with buildings designed for higher heating temperature so it is limited to new builds.

That's no longer the case with modern, multi-stage high temperature heat pumps [1]. These consume more electricity, yes, but still achieve far better efficiency than straight burning fuel or resistive heaters.

[1] https://www.buderus.de/de/waermepumpe/hochtemperatur

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Re:Nvidia's 45°C cooling design cuts data center water use t... by PunchyHamster on Thursday June 25, 2026 @07:27AM (#48671869)

I guess technically you could put heat pump at destination but that significantly eats into "free heat" part

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Re:Nvidia's 45°C cooling design cuts data center water use t... by kukkamario on Thursday June 25, 2026 @08:15AM (#48672248)

And that is why existing installations put the heat pump to production side and then just pipe the high temperature water to district heating network.

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