The project is part of the Greenvillage initiative, run by Delft University in the Netherlands, which is investigating renewable energy supplies, and is said to be a European first. Honda has shown similar technology in Japan, on the Clarity.

It’s said that a hydrogen fuel cell vehicle can power ten homes on average, and the socket is able to supply power either to a house or back to the grid. Because most cars are used as transportation for only 5% of the time, they can function as electricity generators with only heat and water as by-products.