Nuvve Corp., based in El Cajon, Calif., is starting tests in Denmark with computerized electronic gear that aggregates the electrical output of parked electric cars, allowing them to act as one giant battery and to participate in wholesale electricity markets when power demand is high.
If the power transmission authority requests electricity from the cars, Nuvve gets a response from each plugged-in vehicle indicating its available capacity. Then Nuvve offers the vehicles' aggregate power for sale and distributes the revenue back to the car owners.
An electric vehicle owner could earn as much as $10,000 over the life of the car, depending on market price for electricity and the owner's commitment to make the battery available to sell power back to the grid, said Gregory Poilasne, Nuvve's CEO.
The same technology will allow you to plug your car in to your house - to provide power to your house - if you have a power outage in your neighborhood.