It's coming!
I see offerings on Amazon for small solar+battery systems for only like $300. Little things, just enough wattage to run a small appliance or something, but still, that is shockingly cheap.
Unless there's some kind of economic or political catastrophe (like Trump winning the upcoming election), it seems to me that household solar is now inevitable and the oil-and-gas industry is basically screwed. Just gotta keep up the inertia.