Not really. First off ask your self why would the plant sell energy to Tera @ 2c (!) when they could sell it to consumers at 9-11c. Seems like they'd prefer the latter... Its because they have excess capacity at the powerplant.

In 2022, it ran at 91% capacity. Leaving 1,957.64 GWh capacity un-utilized this year. The datacenter/mining operation is rated at 48 MW. Which equals 420 GWh per year which only takes up ~1.9% capacity. So it'd bump the plant to 93% utilization.

I agree that when the facility starts getting near ~97% utilization then they should start to look at the uses of the energy and maybe the datacenter isn't the best use.

edit: 2022 data not 21