Don't count on it. I know plenty of warmageddon libs, none of whom have solar on their own home. The true believers all believe it's best if other people do the "green" stuff (make the power companies figure out how to make solar and wind work, and the plebes just plug in for power as always).
I'm the only one I know personally who has enough solar to provide most of my power needs (80%, including charging the EV). And I do it to be more self-reliant, not to save the world from our carbon sins. That's the main reason it works well for me. Efficiency and feasibility matter because it impacts my pocketbook.
Who paid for It? Just curious ...