Sorry, I heard that in Arkansas the Army Corp of Engineers built a dam that the local people DID NOT want using eminent domain. If solar power will replace a dam, I say go for it. I know there is more to every story though, so I have to dig a little more.
The rivers run 24/7/365 & produce various amounts of hydroelectric power. People use power 24/7/365.
Solar will be costly- & inconsistent. There is definately NOT 365 days of sunshine in that area.
None of these dams are clones of the Hoover Dam.