There are no nuclear energy producers being contracted, just upstarts that promise to deliver energy later, in exchange for a promise to buy that energy.
Three Mile Island nuclear plant will reopen to power Microsoft data centers
> Three Mile Island, the power plant near Middletown, Pa., that was the scene of the worst commercial nuclear accident in U.S. history, will reopen to power Microsoft's data centers
I'll eat my hat if that bears fruit but it's like I said, a power purchase agreement for a source that is slated to come online at a future date. (I should have been more specific in my assertion: no nuclear companies currently producing energy are being contracted)
Worth noting that they'll be using a different reactor than the one that melted down, and that "the worst commercial nuclear accident in US history" remarkably, thankfully, didn't result in any direct casualties. Our track record is pretty solid.