In Western Europe (in a political meaning) only Finland has tried for several decades. It's now 12 years behind schedule and the official message is that it will be running in winter (colder in Finland than in many othe places) when the lack of Russian energy will become most visible. Direct import of electricity and gas from Russia have been already stopped. At the moment that's not a problem because it's summer and you can import from other European countries. I'd be very suprised if you can do that in winter. If the nuclear power plant is not ready people will sit in the cold in 6 months from now. Or they will compromise on safety and just run the plant anyway. It is already loaded. No idea what will happen, but I should stop discussing on HN and order firewood.