[GCU-Empiricist]

So the power supply used to change the speed of nuclear warships from bare steerageway to 30+kts rather quickly is not responsive to changes in demand? Friend you seem to have some conceptual errors.

There is a lot of things you need to do if you take a plant out of operation, and there is a significant amount of decay heat from fission products that does require external power (basically what caused fukashima's fires) to cool over days if you turn a plant off, but you are oversimplifying solved engineering challenges to present them as intractable challenges.

[brandmeyer]

Its not directly a technological problem, its an economic problem. Even the optimistic side of the cost analysis for nuclear power must assume that the reactors are operating at full power as much as possible.

The operating cost is essentially independent of power output.

[beerandt]

Which is why the optimistic side of renewables needs to include the capital costs of whatever is providing the supply when solar and wind aren't.