... The 'Charge green' display on the wall-mounted terminal (left in the picture) - the central control unit in the house - shows when the e-vehicle can be "charged" with its own solar power and without the usual grid power, in addition to other smart home functions. If this is the case, the car has "right of way": other devices in the house go into snooze mode until the vehicle battery is full again. In this way, ...