bjrosen
Member
How would they know the charger is consuming the electricity? Chargers are dumb devices, they don't have any means of communicating with NationalGrid. They get the info from the car which is already connected to the Internet. Tesla tracks your car's charging which they helpfully provide to you in the app. When you sign up for the off peak charging program you give NationalGrid access to your Tesla account so that they can see the same info, they then look at it and give you credit for the energy that your car takes in while it's parked at home.Why do they need to know where my car is? If the charger at my house is charging something, it's my car. If my car is somewhere else, it won't be using my home charger. Why do they need access to live data which tells them where I am and how fast I'm going and who knows what else? They should only need information about what my home Tesla charger is doing, they don't need to know anything about my car that I can think of.
If you don't want to share your location info with NationalGrid then don't sign up for the program.