Nuclear is not cost-competitive in the US because it is defined as not being competitive! The problem is the standard for radiation is as low as reasonably achievable. Oops, that means that if nuclear isn't expensive that means you could pile more safety systems on it. It's a stealth ban.

Now, if your objective is public safety you should use a different standard: Better than any viable competing technology. Within the limit of rounding nuclear is currently 100x safer than it's closest competitor: natural gas. By mandating that level of nuclear safety we are actually increasing deaths by causing the use of a far more dangerous technology instead.

(And note that her post repeats a common mistake about nuclear safety--assigning the Fukushima deaths to the nuclear plant rather than to the politicians. The evacuation of the city did not make sense from a safety standpoint. Growing food there will not be a good idea for some time but the expected death toll from sitting put was zero. The only non-worker nuclear power deaths are from Chernobyl.)