1. Fuel Cells
Automobiles that use batteries as their power source are available to the public, but unfortunately, are not able to travel extended distances before using up their entire energy source. Another possibility for a power source is solar power, unfortunately though, there are several problems. One of which problems is that when it is cloudy out, or at night, the automobile must use a backup energy source, most often a battery which is an insufficient source of power. ... A hydrogen fuel cell converts about 80% of the chemical energy of the fuel into the kinetic energy of the car (Mustoe 551)."...
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