[CogentHedgehog]

Yeah, and there's not enough viable vendors in the nuclear sector to be able to just switch if someone does not play by the rules.

You are correct that wind has a lot more flexibility in this area than nuclear. It is also much easier to scale a project up by just adding more turbines. In the case of older, smaller turbines they can be replaced with more modern turbines that yield more power (called re-powering).

In general wind power and solar have much better economies of scale too -- the more you build, the cheaper it gets. Nuclear doesn't tend to follow that pattern -- although there are attempts to create it via small modular reactors (SMRS). The jury is out if that will succeed or not (early signs are not great though).

[iguy]

Yes. I wonder whether a push for something like small modular reactors, starting in say 1973, might have got us a real solution. Seems a bit late now, but would love to be proved wrong on that.

[CogentHedgehog]

Small reactors were part of the original 1st gen nuclear reactors. The world went to bigger reactors in the 60s-70s because it ended up being much cheaper than building lots of small ones. Reactor fabrication is complex, and it's easier to just build them bigger.

From the 90s to the mid-2000s there was probably a window for development in this area. But the nuclear sector stagnated as a whole, and then fracking made natural gas cheap enough that people wouldn't consider it.

The jury is out on SMRs still. They're promising a lot, and the tech and engineering has improved. But plunging costs of renewables mean the window of opportunity for nuclear tech is probably mostly closed in the West. This article from a highly respected energy sector analysis group is worth a read: https://about.bnef.com/blog/scale-up-of-solar-and-wind-puts-...

India and China are the big markets for nuclear right now -- their energy demands continue to grow, and they're building reactors as part of an all-of-the-above model. France MIGHT be a potential buyer of SMRs (their reactor fleet is getting close to end-of-life), but their nuclear companies have put a lot of push behind the EPR design.