Anecdotal data incoming! After initially switching to battery off shore power, I have now been exclusively on solar* for a month and would never care to go back.
*except the rare times I need heat, at which point I use a Diesel heater that I run for less than an hour on days I need it (I've learned to embrace layers even indoors), which consumes roughly 1 cup/240mL per hour. Not completely clean, by any stretch, but there's not enough real estate on my roof to power fully electric HVAC. But getting down to that being the only need for fossil fuels for home use is a massive shift, and it's always wise not to let the perfect be the enemy of the good. We're in the transition phase, and every bit helps.