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by throw0101a 1888 days ago
> We can do it with control rods,

Also note that there is 'turning off/down' thermally and electrically.

Once the steam is created, all of it is usually sent to the turbines. But if a nuclear plant need to dial back output, it is possible to route the steam to some place else where it's dissipated and not used to spin a turbine.

You can see this in some of the generator numbers for the Ontario grid, specifically for today (2021-04-24), DARLINGTON-G1 had reduced output:

* https://www.sygration.com/gendata/today.html