The two new Westinghouse Vogtle pants are too expensive, at $14 billion for 2.5GW of power. If you purchased $14 billion of Tesla powerpacks, you could get 35GWh of storage--enough storage to supply 2.5GW of power for 14 hours....
The latest estimates are over $21 billion when you include financing costs. They go out of their way to hide these numbers since $10k/KW is just insanely, idiotically expensive.
14 billion is a lot. For your storage alternative though, you'd still have to buy something to fill the storage up reliably in the other 10 hours of a day to be an even comparison.
