As of May 2019, there were more than 68,800 Level 2 and DC fast-charging units throughout the U.S., according to the “fact of the week” from the U.S. Department of Energy’s (DOE) Vehicle Technologies Office.
Of that total, 16% – or approximately 10,860 units – were DC fast-chargers, making long-distance travel more practical for electric vehicles (EVs), says the DOE. A DC fast-charger can add 60 to 80 miles of range per 20 minutes of charging, while a Level 2 charger can add 10 to 20 miles of range per one hour of charging.
At 22,620, California has the most EV charging units of any state, representing about a third of the nationwide total.
Counts include both public and non-residential private charging units. A charging unit refers to a single charge point. An EV charging station may have multiple units, the DOE notes.