ical emissions policies as California.) The annual total of new electronics in those states is scheduled to rise to 175,910 in the year 2002 and to 352,320 in 2003.Also experts are looking at alternative sources for batteries. Some experts feel hydrogen fuel cells will be the dominant motor vehicle power source. The fuels cells convert hydrogen (an element in virtually limitless supply) directly into electricity without burning it to produce heat. Vehicles that are powered by hydrogen will be 3 times as energy-efficient as compared to gasoline-burning internal combustion engines. These cars will also be "squeaky-clean" because hydrogen powered vehicles only emit water vapor as exhaust.Another alternative source for batteries contain thin sheets of plastic called proton-exchange membranes (PEMs). These separate hydrogen ions from electrons during operation. This type of battery seems to be the best suited for motor vehicle travel. This battery could yield a fuel cell that is light, compact and inexpensive to produce on a mass basis. Sam Romano, project manager of the fuel-cell program at Georgetown says PEM technology is "perhaps 10 to 12 years away from broad commercial application."In all the motor vehicle market of the future is likely to feature several different fueling systems. "There's going to be a role for all of the technologies." Says Gloria Quinn, a spokes-woman for the Edison Electric Institute, which represents investor-owned electric power companies and electric utility holding companies. "Electric vehicles, in terms of light-duty trucks, cars and vans, make a great deal of sense. But for heavy-duty trucks, the battery technology just isn't there at all." Consequently, says Quinn, "Despite the environmental advantages of electric vehicles, other alternative fuel technologies will remain on the scene - and even dominate certain vehicle markets."Advantages/Disadvantages:There are many advantages to driving an electric car...
