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A comment on Nvidia's 45°C cooling design cuts data center water use to near zero. Parent comment

Re:Nvidia's 45°C cooling design cuts data center water use t... by lrasinen on Wednesday June 24, 2026 @12:49PM (#48662580)
Microsoft's already building data centers hooked up to district heating (Espoo and Kirkkonummi, Finland). Heatpumps are amazing.

(Seasonal heat storage is also a thing, Espoo's neighbours have tens of GWh of storage, with a new 90 GWh cavern in the works. Not sure if the systems are interlinked.)

[ Parent | on HN ]
Re:Nvidia's 45°C cooling design cuts data center water use t... by hiAndrewQuinn on Thursday June 25, 2026 @01:14AM (#48669219)
Don't forget XTX Markets in Kajaani! At least last I heard. Free heating for an entire city in exchange for being allowed to build out a data center is a pretty good deal.
[ Parent | on HN ]
Re:Nvidia's 45°C cooling design cuts data center water use t... by lrasinen on Thursday June 25, 2026 @03:40AM (#48670201)
Nice!

Apparently the local supercomputer cluster in Kajaani has also been hooked up in 2021 and is responsible for a fifth of heating.

[ Parent | on HN ]