One of the reasons for this is that every new nuclear power plant is a little bit different from all the previous ones - 'better', safer, more efficient etc., but different with more risk and expense.
A Solar plant is (very crudely) just purchasing panels from a factory that's already produced millions of them and installing them in a frame so they're pointing at the sun.
A Solar plant is (very crudely) just purchasing panels from a factory that's already produced millions of them and installing them in a frame so they're pointing at the sun.