Some of you new owners may find this valuable in understanding the electrical usage of the car vs the rest of your house. It is unlikely to match your particular circumstances, but the numbers could be used to make a fairly reasonable projection of your usage. By way of background, just over 4 years ago we managed to get into a Toronto Hydro pilot program to monitor EV usage. We had just leased a Smart EV, installed a L2 charger and started using it as our primary vehicle. TH provided a dedicated meter and monitoring and reporting on our car/home energy usage. We do about 23,000 km annually in the car. The Smart is about 25% more efficient than a Tesla. It is less than a ton, doesn't go over 125km/h without a tail wind etc. There is basically 0% vampire drain over weeks. We live in an '80s detached house, high efficiency HVAC, new windows, LED lighting, etc. I work at home. Here's a sample report from April of 2017. Most months are similar, with July/August having a big house side boost from AC.