The entirety of the national electricity grid in the USA needs to be upgraded to cope with the possibility of every ICE vehicle being replaced with an electric vehicle.
The U.S. can't even get the utility companies to upgrade their system software applications to increase security against hacking. If they can't be bothered to upgrade 40+ year old software systems I don't see them increasing their generation capacity to handle 500,000 to 20,000,000 electric vehicles per utility. Not without an act of Congress.
IMO change-resistant companies like electric utilities will do "the path of least resistance" route and resort to "Supply and Demand" pricing. As more electric vehicles come online, charging station costs will increase exponentially as grid load reaches capacity.
I believe the electric vehicles in the USA will remain a niche market until the electricity industry is forced to change. I don't see that happening for decades.
