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Hydrogen fuel cells how efficient are they???
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Most hydrogen fuel cells have an efficiency of 40 - 70 % which is not to bad.
Hydrogen fuel cell have many practical uses from powering a home of running your car.
hydrogen fuel cells have changed the way we look at our energy resources!
For example,a hydrogen fuel cell operating at 60% efficiency would emit 80% less CO2 than fossil fuels in a car.
