If you own a home you're going to pay property taxes and have to make repairs/replacements, regardless. And you're right, where I live, property taxes alone exceed what I would spend on utilities, even if I didn't have solar. Nothing I can do about that. But if I can save spending the $2,500 or so a year that electricity would cost, along with receiving $2K or so in carbon tax payments, that's $4,500/year I can put towards taxes or improvements. The system has long since reimbursed me the purchase and installation cost.
I like that I have no water/sewage bill (well and septic system) and (nearly) no electric bill at my house. My only utilitiy costs are oil heat (not nothing) and a tiny amount of propane I use for cooking and the clothes drier. And to run the generator when needed. Not having those expenses makes me less stressed about continuing to live here.