A Virginia class submarine in 2023 costs $4.3 billion (that's for the whole submarine), it has a 210MW S9G reactor.
The Vogtle Unit 3 was $17 billion over budget, for a $30 billion total budget, for 1,100 MW.
$204MM / MW for the US Navy vs $273MM / MW for Georgia Power et. al.
This project makes nuclear submarines look like a bargain!
Sources:
* https://en.wikipedia.org/wiki/Virginia-class_submarine
* https://apnews.com/article/georgia-power-co-southern-climate...
https://www.westinghousenuclear.com/energy-systems/ap1000-pw...
The naval reactor is more expensive per unit of output.