Creating heat to turn into electricity is an outdated 19th century idea at this point.
Now that we’ve mastered the technology to turn ambient energy directly into electricity, traditional nuclear reactors are an overly complex technological dead end.
Check out the interconnection queue for new generation where there's price competition, and you will see it completely dominated by non-thermal tech.
And the thermal tech that is there, natural gas, is partially combustion turbine driven, and without that combustion turbine component it would likely not be competitive at all. It's likely that within a decade a lot of those new natural gas CCGT assets will be completely stranded and uneconomical.
And as with any high-capital established industry, there are a lot of dinosaurs that will not move until they die off. They will be victims of creative destruction, rather than survive and pivot sooner.
Now that we’ve mastered the technology to turn ambient energy directly into electricity, traditional nuclear reactors are an overly complex technological dead end.