Comment by Moldoteck
chinese nuclear is extremely cost competitive at 2.5bn/unit. They have other reasons, one being the ban on inland expansion fearing of messing up with 2 major rivers that feed the country. Current chinese units are basically borrowed and improved western designs, cap is basically vogtle's ap1000, hualong is a frankenstein of several western designs.
>borrowed and improved western designs
TBH this part seems key, even PRC couldn't operate full western designs reliant on western industrial capacity economically, part of it was simple incompetence of western supply chains (business closures / regulatory drama / sanctions). Nuclear seems viable once you strip out a lot of the politics that makes them uneconomical, hence PRC had to indigenize the designs since once western supply chains enter picture, the schedule goes out the window.