Not any more they don't. Those were older reactor designs which nobody wants now. And the 5 years was first-pour to switch on. Add a few years for planning, per

Not any more they don't. Those were older reactor designs which nobody wants now. And the 5 years was first-pour to switch on. Add a few years for planning, permitting and actually supplying to the grid. Newly approved Korean plans are aiming for 2038. Best of luck to them. I'm sceptical they'll make it. https://www.world-nuclear-news.org/articles/plans-for-two-new-reactors-confirmed-by-south-korea https://www.world-nuclear-news.org/articles/plans-for-two-ne... Edit to add: They used to be pretty fast but like everyone else seem to be slowing down significantly. https://world-nuclear.org/information-library/country-profiles/countries-o-s/south-korea https://world-nuclear.org/information-library/country-profil...