As this is in the context of Montana,
1. not every part of the U.S. grid is in dire need of improvement, most homes have access to 240v most of the time. (with the exception of the 1 state that has assigned fire damages to their utility. And, most vehicles are charged at night, outside of peak demand. (also, the Tesla wall was a technology that further decreased demand on the grid)
2. Most of Montana is going to have off street parking, be it a barn or garage (and with at least 120v) mostly by the necessity that sub zero temperatures ~2 months of the year freezing anti-freeze, batteries -- and that you can't use an ice scraper to scrape off feet of snow.