Dell is building a new data center in Quincy, WA. How big is it? The initial phase is permitted for 14 3.0 MWe = 42 MWe and another 14 3.0 MWe. Depending on how they want to run the redundancy of the generators the power would most likely be 30 MW for total power. Assume a PUE of 1.2 and you get 25 MW of IT load.
Here is the permit that gives you the information on the generators.
This is Phase 1. Phase 2 & 3 is another 14 3.0 MWe diesel generators.
So, total for site is 50 MW of IT load. This is a pretty big data center.