Comment by nehalem501

French reactors can adjust their power outputs in 30 minutes between 100% and 20% their nominal power rating. I think we are actually the only country doing this. (EDF: "In France, a nuclear power plant is able to ramp up or down between 100% and 20% of nominal power in half an hour, and again after at least two hours, twice a day.", source https://hal-edf.archives-ouvertes.fr/hal-01977209/document bottom of page 4)