In my California area we get lots of sun. Ideal for solar. Feds and state give "subsidies," in various ways.
Therefore we are constantly being solicited. But I don't come near a point where it works, even with subsides. I use little electricity due to no pool, no air conditioning, etc.
IF we are hell bent to raise the prices of energy by blocking coal and oil, then someday solar might make economic "sense."
But not yet.