Interesting but peak use of electricity in the uk is between 4pm and 7pm (according to what Google tells me). In an EV world, isn’t that the time that most people (and their cars) will be at work or coming home or arriving home with a depleted battery? I don’t see much of an opportunity to sell power back to the grid then. Even expanding peak time to broader daytime hours, most people will be parked up somewhere away from home. The only time there is some certainty most EVs will be hooked up is at night when electricity is available cheaply.