Nuclear energy isnt a technical problem, it's a human problem. Specifically, the real expense in US nuclear construction is that there are only a handful of contractors who have the tribal knowledge to actually do nuclear construction e.g. pour concrete, install old-fashioned non-networked electrcal control systems, big switchgear, pipefitting, startup V&V, an so on.
They'll all gladly monkeywrench, slow walk, and re-work every step because they know there's no real competition for fleet-wide contracts, and no one from the CEOs to the craft on the ground want the job to end, so you get it decades late or not at all.
One more piece of evidence that prompt fondlers are not serious people.
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