[mythhabit]

Both France and Germany have nuclear plants with load following capabilities to the tune of 5% change per minute. That is 50-100MW change every minute for a single powerplant. It might not be peak-peak, but it is certainly going to handle the vast majority of all electricity generation with very small delay.

[rgmerk]

Sure, I get that you can ramp nuclear plants, technically, but it’s highly unlikely to be economically attractive to build new ones with the intention of ramping them a lot.

If SMRs are built, I’d expect many of them to be accompanied by batteries (either co-located or elsewhere on the grid) to be used as an alternative to ramping.