Then you should be aware that, for the longest time, Google was against multiple floors, until they suddenly switched to four floors in many locations:

https://www.datacenterfrontier.com/cloud/article/11431213/sc...

A decade ago, there was a burst in construction and in some places the bottleneck was not getting the machines or electricity, but how fast they could deliver and pour cement, even working overnight.

Yep, I am aware, I have a square footage multiplier for their multi-story buildings.

But how can you know how many floors they have? And where are you getting the list of buildings from? And what makes you think your list is complete?

Also how do you know their efficiency? Google might have less space but also a way to pack twice as much compute in the same place.

Like I said, this is impossible to know without a lot of insider information from a lot of companies.

Well, they tell you for one: https://datacenterpost.com/scaling-up-google-building-four-s... We also have Google Street view, etc.

Of course, it's all estimates. You can get fancier and count generators and transformers and stuff too.