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. are already working with Nissan ( 7201.T ) 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. With millions of electric cars expected on European roads over the next decade, utility firms see both an opportunity to sell drivers […]