The total overhead, including cooling, is only ~10% for Google datacenters [0], and the other cloud providers are likely similar. Efficiency gains of that scale

The total overhead, including cooling, is only ~10% for Google datacenters [0], and the other cloud providers are likely similar. Efficiency gains of that scale probably need to come from somewhere else. [0] https://www.google.com/about/datacenters/efficiency https://www.google.com/about/datacenters/efficiency