[pydry]

Gas is dispatchable. You can treat it like a huge battery. Nuclear power not only isnt a substitute for gas, it needs gas as a backup and to mediate supply and demand.

Gas is also waaaay cheaper than equivalent amounts of nuclear power - like 3x cheaper.

[empiricus]

I suspect that you can modulate nuclear power too, but why do it? after you started the reactor it runs practically for free? (the fuel cost is so small; or it costs the same to run full power of half power). disclaimer: I did not read actual details about nuclear power plants designs in the past 20 years, so i'm vibing from first principles and bad memory