FRANKFURT/LONDON/PARIS—Ever wanted to run your electric car for free? If you’re open to a bit of give and take, then stay plugged in and your wishes might come true. At least that’s what some European power companies and Japanese carmakers believe.
E.ON and EDF are already working with Nissan to develop services that allow power stored in electric vehicle batteries to be sold back to the grid—and now they’re trying to persuade European carmakers to follow suit.