The chargers will be located along highways and at Porsche dealerships. The automaker’s 189 U.S. dealers will be asked to install at least one charger at each location, along with a battery to act as a buffer, storing energy from the grid for periods of high traffic. It’s a bit of an ask, Zellmer admits. “It’s not a minor cost,” he told Automotive News. “It certainly is six-digit numbers that our dealers will have to take.”
The chargers, though, will help alleviate range anxiety for owners who want to travel greater distances with their electric Porsches. The 800-volt chargers could recharge a Mission E to 80 percent capacity — or about 250 miles worth of driving range — in less than 20 minutes. With such quick charging times, having the chargers conveniently located will help break down the psychological barrier that keeps people from buying an EV, even if they would rarely surpass the car’s 300-mile driving range.
While dealers would have the option to offer customers free charging, most drivers would likely have to pay for a fill-up. Zellmer said possibilities include buying a package or membership card that includes charging.
Porsche is in talks with ChargePoint, EVgo and Electrify America about building the other 300-plus chargers it plans for non-dealership locations by the end of next year.
Porsche plans to begin sales of its all-electric Mission E sedan in 2019. That will be followed in 2020 by an EV based on the Mission E Cross Turismo concept, a lifted wagon that debuted at the 2018 Geneva Motor Show.