> But nuclear power plants? Completely uncorrelated. If each one produces power 85% of the time, then you need two, and you'll almost always have power.

Not really true. French nuclear output drops every time there's a European heatwave. It used to be the only time that the cross-channel link rank backwards (UK powering France).

I think France responded to this in the context of climate change by changing the protection standards for their rivers?

https://www.theguardian.com/world/2003/aug/12/france.nuclear