[Wonder Warthog]

Small modular nuclear reactors of several types are already under development and deployment. Dow Chemical is one stated soon to be user (Dow uses huge amounts of electricity to make chlorine, caustic, and magnesium.

[RoosterRedux]

That's what the developers of big data centers are looking at because the grid is increasingly inadequate and undependable. But I doubt these privately-owned nuclear plants will be very small.

Modular and easily expandable? Yes. But small? No.

And for anyone who thinks the rapid development of AI and its data centers can be slowed down, consider that the DOD, military-industrial complex, and intel community will be big users of AI and AI will be important to national defense.