China wants to use its EV boom to help power the grid

• China's EV market is booming, with BYD surpassing Tesla as the world's largest electric car maker.
• The Chinese government is looking at using EVs as a power source for its electrical grid.
• A "reverse charging" trial recently provided enough electricity to power 133 households for a day. 

China's EV market is booming — and now, the government is embarking on an ambitious drive to use it to power the country's national grid during periods of peak demand.