down the road from me in hartsville tn. TVA built a nuclear power plant, they got it about 2/3 of the way finished and then they stopped...they spent 2 billion dollars and the big cooling towers are there and all the buildings and machinery are all still there...they just walked away because it was no longer financially feasible.
There are some other unfinished nuclear power stations in TVA's inventory, they include Watts Bar Unit 2, Bellifont Units 1 & 2.