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Originally Posted by Jim H
I see a promising future for the fuel cell, which converts the energy contained in hydrogen atoms directly into electricity, which can be used to produce mechanical energy using electric motors. The hydrogen combines with oxygen, and the exhaust is mostly warm water.
http://science.howstuffworks.com/fuel-cell1.htm
Best Regards,
Jim |
Fuel cells have LOTS of potential, but everyone has to remember that obtaining H2 requires extracting it from water, which requires at least as much energy as is obtained when it is recombined with O2 to form energy and water again. H2 is not really an energy source, it is a way to transport and store energy. From an environmental and energy conservation point of view, it really only helps if the energy used to originally extract the H2 is "clean."