A couple of interesting charts. I worked with an electrical engineer 6-7 years ago who thought solar power was one of the greatest things ever, had researched it more than anyone I know. But he said it didn't make financial sense for homeowners in Mississippi. He said maybe if he was 25 years old and building a house he for sure would live in the next 40+ years, but no other scenario would make sense to him. In his opinion it would be smart to install them on schools or similar buildings - places where aesthetics aren't as important, and you know the building will be there / not sold for many years to come.
This one shows how "friendly" each state is to solar power. As you can see, MS and AL rank dead last.
State Solar Power Rankings
And I think this one basically shows how much sunlight the US gets. MS is not a good as the southwestern states, but not terrible either.
Solar Model
Surprised they didn't massage that solar power rankings graph to make it less obvious they were just talking about how heavily solar is subsidized or mandated by the state. 8 of the 10 factors are just about a state subsidizing or mandating it, one is how cheap the electricity is that it is competing against, and one is about interconnection, which may or may not be based on whether interconnection is subsidized or done at cost.