vehicle-to-grid (V2G) technology. Led by professor Willett Kempton, researchers at the University of Delaware are conducting experiments at two different outlets, using electric cars as energy storage to assuage local power fluctuations. When parked at home, Kempton says his ride's got enough juice to power 7 or 8 nearby homes for 30 minutes, should the need arise. Meanwhile, the city is doing its own assessments to make sure the cars don't energize downed lines. What we're really interested in is the potential for discounts from the electric company. Plugging in our clunker for a few dollars off monthly utilities? Yes, please.