[i_am_nomad]

All of that depends on your power costs. My town has its own municipal power cooperative that buys very cheap hydrothermal electricity. Solar would never make sense for me, except as some kind of disaster-event alternative.

[toomuchtodo]

I mention that in my comment, and I agree that it doesn't make sense in locations that have sustainable renewable power (hydro in the PNW, geothermal such as that in Iceland) in place. It makes sense anywhere attempting to phase out fossil (coal, gas, shale) or older low carbon tech reaching the end of its useful life (nuclear).

For example, ComEd in Illinois is offering incentives on top of state and federal incentives for rooftop solar due to a state renewables mix mandate, and their fleet of commercial nuclear reactors are reaching the end of their service life (and aren't cost competitive with wind and solar in the state, even accounting for the need for battery storage to meet capacity requirements).