Correct me if I'm wrong, but that sounds like a LOT?
Here's a quote from the Daily Memphian article about it:
"Supercomputers like the one xAI building in Southwest Memphis need considerable electricity. The facility is less than a mile from the Tennessee Valley Authority’s Allen Combined Cycle Plant by car and it’s even closer as the crow flies.
Memphis Light, Gas and Water said there is enough electric capacity on its system and TVA’s for the project. Power to the supercomputer would be interrupted if the system is stressed.
“They’re working on that with Tennessee Valley Authority and our team to determine how much off-peak they can come when the demand gets high, and what the terms of that will be,” MLGW CEO Doug McGowen said."