The study concludes that people are simply charging more often, and sometimes driving less often.
Owners in the US can schedule an appointment at a Porsche dealership to get the new unit.
The incentive is for customers who decide to take delivery by the end of the month.
The investment will add 90,000 new EV chargers across the state, more than double the 80,000 chargers already installed.
There are certainly pros and cons of Tesla opening up its Supercharger network to all EVs.
Tesla's Wall Connector was already well-priced, so the new discount adds even greater value.
That will allow owners to cover about 3,500 to 4,000 miles, depending on their driving style and external conditions.
There are a host of "battery breakthroughs" all the time, though most of them won't be a reality any time soon.
It's the end of the week, which means it's time to share some compelling EV stories as we head into the weekend.
While Tesla pushes to make its charging connector the new standard, it has now listed its Wall Connector on Best Buy's website.