Now that there are a number of electric cars available with ranges well in excess of 200 miles, the main thing holding up a widespread shift to electric driving is the lack of supporting infrastructure. Gasoline is available everywhere: EV quick chargers are few and far between. Hence the importance of last week’s announcement from General Moters and Bechtel that they will be jointly developing a network of several thousand charging stations across the country. This may be the necessary tipping point to create the kind of shift for electric cars that we saw a few years ago for smart phones.