wsj.com

Here’s what that means in practical terms. According to a 2017 study by two mechanical engineers at Carnegie Mellon University, an electric cargo truck capable of going 600 miles on a single charge would need so many batteries that it would have to carry 25 percent less cargo.13 And a truck with a 900-mile range is out of the question: It would nee

... See more

Key to that incremental deployment will be the construction of new infrastructure specifically made to accommodate autonomous vehicles. In the United States, in contrast, we build self-driving cars to adapt to our existing roads because we assume the roads can’t change. In China, there’s a sense that everything can change—including current roads. I

... See more

The failure of electric vehicles in the early twentieth century, and the emergence of the internal combustion engine as the dominant form of propulsion, has much to do with liquid fuel providing far more energy per unit mass than a lead-acid battery can. But the explanation is not purely technical. It also has a psychological component. Buyers of p

... See more