Interesting, looks like I was out of date on that. Wikipedia shows the LCOE of different energy sources [0] and, while nuclear was at parity with natural gas & wind as the cheapest energy circa 2011, it has since become one of the most expensive (~2.5x solar).

Why did this happen? Why has the cost of nuclear doubled in the past decade?

[0]: https://en.m.wikipedia.org/wiki/Levelized_cost_of_electricit...