To even the playing field for the haves and have nots with regards to charging, I think they should start charging home EV charging at 20% vat, with smart meters I'm sure it could be differentiated from normal home use somehow. They couldn't really complain about that as they still don't have to pay umpteen % of fuel duty on top like normal fuels do, although I'd expect the government to be looking into that eventually if the loss of revenue becomes too high.