China Gears Up Its Massive EV Fleet to Back Up the Power Grid

In the industrial hub of Wuxi near Shanghai, car owners recently took part in China’s largest experiment to rewire the grid and take advantage of its world-leading fleet of electric vehicles.

Instead of charging up after plugging in, 50 EVs did it the other way around. For 30 minutes, the cars combined to feed around 2 megawatts of electricity into the grid, enough to fully power 133 houses for a day, according to a report from state-owned CCTV.

China plans to lean further into vehicle-to-grid tech. The government’s top economic planning agency, the National Development and Reform Commission, said ...