What is expensive in nuclear energy? Reason there is not more of nuclear reactors is not the cost, it is regulation. Regulation can be changed (it also seem to already have, recently, IIRC - starting 2024 NRC law changes by Biden admin and later by Trump admin)
Reason there is not more of nuclear reactors is not the cost, it is regulation.
The reason for regulation is that failure is not an option --- unless you're willing to accept making a big chunk of a state uninhabitable.
How much would failure cost? The Chernobyl exclusion zone is over 1000 square miles --- about half the size of Delaware. The Russian Academy of Sciences estimates that up to 1 million people may suffer premature death as a result of radiation exposure from the event.
In the long run, solar power is a lot cheaper.