Someone posted a paper to HN that investigated the reasons for overruns quite thoroughly, from when the first reactors were built. Fifty pages or so. As I recal

Someone posted a paper to HN that investigated the reasons for overruns quite thoroughly, from when the first reactors were built. Fifty pages or so. As I recall, none of the major reasons were related to reactor size. There were issues such as having ignored the risk of an earthquake; when it became clear that earthquakes can damage reactors, the reactors that were being built needed late engineering changes that led to cost overruns. Things like that. But nothing related to reactor size. (Note that this was about cost overruns. Not about the costs that stayed at the projected level.)