but if we have some up and running, that’s cheap energy that generates little carbon.

That is the great misunderstanding of nuclear. It isn’t cheap. It’s supported massively by tax money. In France with all its big nuclear plants for example, the power company went bankrupt. Nuclear is too expensive to run. The government took over the operations.

In Germany, the power companies refused to prolong the operations of nuclear at the beginning of Russian invasion. It was too expensive for them.

The only advantage that nuclear has, is that it’s independent of weather and doesn’t emit carbon. The drawback is the costs, inflexibility (always on), and reliance on cool water (which was an issue in France). That’s why MS, Amazon and all put there eggs into this basket for AI power - they shit money.