Given that its neighbors' top two electricity sources seem to be Nat Gas and Nuclear, seems probable that most of the electricity comes from those sources
You should really just take a weighted average of all the things putting energy onto the eastern interconnect grid(including grid-tied home solar installations, but those are probably negligible in the grand scheme of things at this point).
The reality is that anyone in the US, east of the rockies and not in texas will have the same 'mpg equivalent' for their Tesla.
The reality is that anyone in the US, east of the rockies and not in texas will have the same 'mpg equivalent' for their Tesla.