The hard part is probably being able to support something around 1 MW peaks when charging a few cars at once with fast charging on a small lot zoned for light commercial. I believe Tesla is storing energy on-site so they don't have to load the local grid with those kinds of peaks. That kind of grid energy storage is kinda expensive, if you don't build it yourself.
That’s the point, Tesla has experience in not making it a local problem, by using their own technology. Other car makers don’t have an energy company to lean on.
