I keep thinking about solar, but I hate that it takes 20 years to break even
I think the same a lot of the time, that and being able to afford it in the first place. But if I could afford it I'd probably do it on a moral basis and kinda ignore the ROI prospects. If it could manage 70% to breaking even I'D be fine with that honestly. Though in a few years time when the newest tech gets more affordable this could change.