What distance must a commercially produced PHEV be able to achieve on the battery alone?
A battery pack capable of powering a PHEV 40 miles could meet the daily driving needs of the majority of drivers without requiring the use of the gasoline mode of the PHEV at all. Some 78% of Americans live within 20 miles of their jobs. In many cases, drivers of PHEVs would only need to fill up with gasoline a few times a year, versus the current 24-36 times a year on average.