> charging of cars Add a way for the home electric system to draw power from the vehicles batteries (or even V2G https://en.wikipedia.org/wiki/Vehicle-to-grid

> charging of cars Add a way for the home electric system to draw power from the vehicles batteries (or even V2G https://en.wikipedia.org/wiki/Vehicle-to-grid https://en.wikipedia.org/wiki/Vehicle-to-grid ), and it becomes even more useful.