Very interesting! So basically what this story says means that the nuclear operator in France has been selling the electricity at a loss, so much so that they are way behind on maintenance and almost bankrupt.

Which in turn means that the actual cost of nuclear power in France is higher than has been reported so far. The cost has just been postponed for decades, until now.

It's certainly bad timing to discover it now - what a nasty "perfect storm" of unfortunate events we are having for electricity in Europe this year. :(