That’s for new nuclear. Existing nuclear reactors operate on the whim of the markets.

For that we have energy futures, or just bidding negative, if you don’t want to turn off. But anyone buying the electricity will ask themselves why they should pay a premium for nuclear electricity at the height of summer when the continent is flooded with solar

Here’s an article in Swedish how a reactor was turned off for about a week due to consistently low prices. While another reactor at the same plant was already having maintenance done.

https://www.nyteknik.se/energi/forsmark-2-ur-drift-pa-agarna...