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Greene 25 (0:40)
Topic(s): Future Transport
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Video Transcript

Well, gasoline is a very excellent fuel for motor vehicles because it's easy to store and has very high energy density—a lot of energy in a small amount of space. We don't have to compromise the design of the car in order to put a gas tank into it. But if we had to put hydrogen tanks on board, we'd have to worry about how much space we're going to use, whether the vehicle would have sufficient range, and that sort of thing. So gasoline has worked extremely well because you can store 10 to 100 times more energy on board a vehicle as compared to a gaseous fuel or electricity and batteries.