At least in Europe, I think it will be more likely that the electricity companies will put them out all over the place (think parking meters, but that are actua

At least in Europe, I think it will be more likely that the electricity companies will put them out all over the place (think parking meters, but that are actually chargers), with a unified system that identifies you and charges the cost of the electricity in your home bill. This is how it works in Barcelona already.