TomCat wrote
I forgot to ask about keeping the snow off the solar panels, so that aspect of the house might not be so practical without someone there full time
True. Some people round here put the panel arrays on the ground. Sure would suck climbing up to the roof to clean them off after every storm.
Maybe they're slick/smooth enough the snow tends to slide off.
They had an idea on there to help AC costs. I've often wondered if a large steel tank, filled with water, buried deep underground on the house's northside, couldn't cheaply cool alot of homes via a heat exchanger.