Yeah - I think it's called V2L (vehicle to load) such as the new Ionic. An adapter is put onto the charging port and you can draw 3Kw from the car to power and external accessory. Really handy, especially if the other half runs out of power somewhere - saves getting a lift on the back of the big yellow taxi!Good setup, but I have no idea what bidirectional means! Is it where the car battery can supply power?