Watts Bar Unit 2 is furthest along among those plants built and never finished in the 1970’s - so it (since Unit 1 is on an approved properties with environmental restrictions already passed), will likely be the first to get started. Maybe in 2012 or so.
Decide first, then get money for planning and enviro review, then get the enviro approval, then get construction funds, then get long-lead items purchased, then get drawings made, then start building, then bring on for power ... in 12 years.
I heard a rumor that Florida Power is planning to slow down generation growth because the south Florida area is losing population. Some of those 25K to 30K homes in the Carolinas are from the half-backs.