It seems to be a combination of nuclear becoming too high tech combined with not enough volume to maintain the technology. Maybe its a scale thing. If you buil

It seems to be a combination of nuclear becoming too high tech combined with not enough volume to maintain the technology. Maybe its a scale thing. If you build only a few nuclear plants per decade, you can't iterate over designs. You may lose valuable knowledge, etc. If I look at complex building projects in The Netherlands, it seems that beyond a certain complexity, companies just cannot come up with a design/plan to make it work. For example, the Dutch government said, we want the biggest lock in the world (https://nl.wikipedia.org/wiki/Sluizen_van_IJmuiden#Bouw_nieuwe_sluis_Zeesluis_IJmuiden https://nl.wikipedia.org/wiki/Sluizen_van_IJmuiden#Bouw_nieu...). Not a controversial project, yet the winning concortium had a design that didn't work and had quite a few other problems. On the other hand, windturbine designs iterate so quickly, that even floating turbines in rough sea is now economical.