Imagine running a parking meter backwards and actually being paid to park your car. Along those lines, electric vehicles might one day make money for their owners by providing electrical storage for the nation's power grid.
The concept, called vehicle to grid (V2G), is based on the fact that your car is typically not being used 90 percent of the time. "What if it could work for you while it sits there?" said Jeff Stein from the University of Michigan.
Of course the car has to plug into a socket, so that electricity can flow both into and back out of the battery. Renting out electrical storage in this way could make electric vehicles more affordable, while also removing the need for backup electricity generators.
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