To briefly recap, we previously found that nuclear power construction costs in the US and around the world steadily increased from the late 1960s through the 1980s. In the US, this cost increase seems largely due to a large increase in labor costs, especially labor from expensive professionals. This labor cost increase, in turn, was at least partly due to frequently changing regulations during the period, which caused extensive design changes, delays, rework, and general coordination issues on in-progress plants. For instance, an analysis of cost overruns of the David-Besse power plant, which was budgeted at $136 million at the start of construction in 1967, and ultimately cost $650 million when completed in 1977, found that “
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