I had a business idea (Which I’ll never do because that is too much work) where I essentially go around and just buy/lease people’s roofs and install solar panels on them. I’d pay either a portion of the energy re-sell value over a very lengthy period of time, or a flat estimated portion amount of return. I feel like solar’s biggest issue is mostly land so people don’t really do much with their roof, it’s free real estate!
Instead of someone coming by and saying “Pay us to put solar on your roof” you’d get me going “I will pay you to let me put a thing on your roof which you will probably never notice, I’ll even insure the roof so if there is storm damage to your roof I’ll cover it”.
Add in the situation where you decide to keep the panels you can buy them off me by either buying it straight up, or letting me just keep the portion I would be giving you for some amount of time, then your roof and the panels’ ownership would revert back to the homeowner.