Or put data centers where the air itself is colder. There’s been small-scale studies on how servers work on greenhouses at the Finnish winter and they are just fine with air cooling at below zero temperatures. I’ve also ran my own homelab in an non insulated attic without issues. The only problem is that if your hardware shuts down it starts to gather ice, so you need to move them in a warm location during maintenance, but they’ll run just fine even at -30C as long as they’re shielded from elements other than temperature.
And in colder climate the excess heat is a resource in itself as you can pump it into district heating loops and not just dump it to the environment.
Or put data centers where the air itself is colder. There’s been small-scale studies on how servers work on greenhouses at the Finnish winter and they are just fine with air cooling at below zero temperatures. I’ve also ran my own homelab in an non insulated attic without issues. The only problem is that if your hardware shuts down it starts to gather ice, so you need to move them in a warm location during maintenance, but they’ll run just fine even at -30C as long as they’re shielded from elements other than temperature.
And in colder climate the excess heat is a resource in itself as you can pump it into district heating loops and not just dump it to the environment.