Nuclear Reactor Pool Fire/Huge Risks in U.S. According to Unpublicized NRC Study

[madokie]

49. Nuclear power plants are not good at load following

the frequency doesn't change, the voltage on the other hand do as a need for more or less energy is needed. Either you don't know what you're talking about or you're lying to us. Not just this time but all through your screeds both as pamW and now as Altair_IV I find this to be true. Its the same pattern you two have. FYI
The frequency is controlled by the rotational speed of the generator which must always remain the same, (60 HZ) the voltage is controlled by voltage control circuits which changes the voltage both electrically and by controlling the amount of steam fed to the turbine, as the line voltage dictates. Another one of your 'do not fully understand' fallacies. If the frequency of one plant could change it wouldn't be long until that plant will self destruct.
You don't speed up or slow down an AC generator to regulate voltage output, not with an AC system anyway. With a dc system yes you can

Nuclear power plants

Nuclear (and coal) power plants may take many hours, if not days, to achieve a steady state power output. In general it is not economical for large thermal installations such as nuclear power plants to practice load following

You might want to read this page to get a feel for how all this works Altair_IV because right now you don't seem to fully understand.

https://en.wikipedia.org/wiki/Load_following_power_plant