> what with France rationing power this winter
Said like that it sounds like rolling blackout and the state enforcing energy consumption at gun point.
There was a lot of noise because the government planned some of these things. But in practice it meant reducing the temperature of public swimming pools a bit, reducing/shutting down public lighting deep in the night, reducing temperatures in office building by one or two degrees.
I would even say this "stressor" will be beneficial, at least at a local level.
The real downside is the increased energy bill for people.
Finally, a large part of this issue is self-inflicted as a failure to plan power plants maintenance.