In addition to post two, consider the cost of gas in comparison.
I can charge at my works charge point system and for 4 hours at 7kwh, it is $3 which equates to about $0.03/mi. Charging at home is about $0.08-0.11/mile past what solar generates. For me, once I’m over my net annual production, I charge mostly at work as it is 1/3 the cost.