If that's the case, why is the electricity company (per the article) saying they'll have the shortfalls down to a quarter (I take that to mean 75% of normal gen

If that's the case, why is the electricity company (per the article) saying they'll have the shortfalls down to a quarter (I take that to mean 75% of normal generation capacity, not 25%) by December? And why is the market not even buying that, what is the logic there (be it correct or not)? --- Edit: a sibling comment https://news.ycombinator.com/item?id=32443994 https://news.ycombinator.com/item?id=32443994 has answered the below question. It's not the water input that is the problem, but the water output temperature for ecological reasons. Original text: As a less-important aside, I'm also surprised a change in water temperature of like 20°K/C/F makes a noticeable difference on a reactor running afaik at some thousands of degrees. If anyone has a pointer or tldr for that, I'd be curious to learn why.