Multi-family housing has lots of issues like this. How can rooftop solar be managed for a multi-family building (especially a rental building)? For a smaller apartment building with a shared garage, even if you go through the expense of running electric lines to the garage tied to individual units’s meters, what’s to keep an unscrupulous neighbor from using someone else’s charger?

I’ve been contemplating buying a rental building and I’ve been trying to figure out these sorts of things. I’m thinking having some sort of charger where the car owner has to enter a pin to identify themselves (and thus be billed for their electric use) is the best approach to the charger issue, but I’m not sure if there’s a good way to manage rooftop solo for a 2–4 unit building.