Information about the data center?

Question

Data center

Good day! Need help with open data center issue. On the global web, I can’t find anywhere information on the following questions that interest me:
1) how many racks does one data center currently have in companies such as Google or Microsoft or Amazon?
2) how many users are there per rack when calculating that there is a base of 100,000 users? I don’t understand that one processing machine is needed for each person, or how does this process work?
3) I know about the approximate electricity tariffs for a 4-kilowatt rack per kilowatt, let's say $ 430 in Europe, but how much is such a modern rack about a month of energy?
I would be grateful for the provision of information, if possible with links to primary sources

Answer 1

for a 4-kilowatt rack per kilowatt, let's say $430 in Europe, but how much is such a modern rack about a month of energy?

4 (kW) * 24 (hours) * 30 (days) = 2880 (kWh)
But whether the rack will be loaded with all 4 kW is another question.
In addition to the consumption of equipment in the rack, one must also not forget the consumption of air conditioners that cool the rack. Unless the data center is located somewhere in the Arctic region.

Answer 2

All this information is a trade secret and is not published in open sources.