How Electric Cars Could Save the Grid
a new, gas-powered auto and it depreciates by hundreds, even thousands of dollars as soon as you drive it off the lot. But buy an electric car and you could receive hundreds, even thousands, of dollars a year, just for plugging it in.
The cash benefit is just one of many in the so-called "vehicle to grid" -- or V2G -- project being developed by researchers at the University of Delaware.
Their idea is simple: electric cars have to plug into the power grid anyway to get their batteries recharged. Why not use those batteries collectively as electricity "sponges" to soak up and wring out the excess power from utility companies that fluctuates notoriously on any given day?
Utility companies would benefit because they'd have a place to store energy; car owners would receive a fee to participate; and car manufacturers would have an attractive selling-point by which to promote their vehicles.
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