[Arnt]

Of course you can decide that. That's what the French did before the price peak in 2016. The thing is that only some of the decisions involved plannable dates.

They decided that when problems were discovered such that redundant security mechanisms weren't, then the problems should be fixed, with time limits. They decided what kind of problems should require fixes within set time limits, and they decided what those time limits should be.

And they decided that some reactors should be taken down for planned maintenance in specific periods.

When problems were discovered at inoppportune moments, the decisions combined to leave them with too few operational reactors.