Nuclear energy proponents drone on about the advantages of the Next Gen reactors. People should realize that the long list of advantages to that technology does not apply to any ONE technology, but rather, to a collection of different technologies that would not be part of any one reactor. So, there’s that. But now, we have one of the Great Breakthroughs evaporating even without that particular bit of smoke and mirrors being … cleared up and fogged over? Whatever. Anyway, here’s the story from MIT

Transatomic Power, an MIT spinout … is shutting down almost two years after the firm backtracked on bold claims for its design of a molten-salt reactor….

Transatomic had claimed its technology could generate electricity 75 times more efficiently than conventional light-water reactors, and run on their spent nuclear fuel. But in a white paper published in late 2016, it backed off the latter claim entirely and revised the 75 times figure to “more than twice,”…

[This] made it harder to raise the necessary additional funding, which was around $15 million. “We weren’t able to scale up the company rapidly enough to build a reactor in a reasonable time frame,” Dewan says.

So, no there isn’t really a reactor that will use up spent fuel and provide energy so cheap we won’t have to meter it.

Here is one of the articles that originally came out extolling the new technology’s virtues. I link to it here so you know what bullshit looks like.