It's a lot smaller than you think these days with all the effort that has gone into it.
Google reports an average PUE[1] of 1.11 over the past year, 1.09 over the past quarter, and the latest/best data centers are at 1.06 [2]. In simple terms this means that the total power overhead for cooling etc is just 6% of that to power the machines in them.
Google (and others) have gone to great lengths using AI, and radical new ideas for cooling.
Disclaimer: I work at Google, but not in Datacenters. All info public domain
Google reports an average PUE[1] of 1.11 over the past year, 1.09 over the past quarter, and the latest/best data centers are at 1.06 [2]. In simple terms this means that the total power overhead for cooling etc is just 6% of that to power the machines in them.
Google (and others) have gone to great lengths using AI, and radical new ideas for cooling.
Disclaimer: I work at Google, but not in Datacenters. All info public domain
[1] Definition of PUE: https://en.wikipedia.org/wiki/Power_usage_effectiveness
[2] Source: https://www.google.com/about/datacenters/efficiency/