16.5% for the buildings and roughly 50% for construction services, engineerig services, owner's costs, structures and improvement according to the aricle I link

16.5% for the buildings and roughly 50% for construction services, engineerig services, owner's costs, structures and improvement according to the aricle I linked in my other post. I suspect that specifically those costs are the ones that cause most of the of overruns and delays. Also, the whole process is certified by the NRC and you can't get creative with it. There are 4, 6 and 12 reactor configurations for a given plant. https://www.nuscalepower.com/en/products/voygr-smr-plants https://www.nuscalepower.com/en/products/voygr-smr-plants