Are the lights going out already?

[niemeyjt]

Have just read somewhere that the nuclear power plants are having to reduce output as the incoming cooling water is a bit too warm, so that may be one of the reasons

Yes - https://www.theguardian.com/business/20 ... tures-rise

Those cooling with sea water are not affected.

I do wonder with all the heat pump technology nowadays why this waste heat cannot be captured rather than in effect t wasted heating the sea or river.