Hydrogen Fuel Cells Pros and Cons

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Hydrogen Fuel Cells Pros and Cons

Hydrogen fuel cells pros
  • Eliminates greenhouse gases if the hydrogen used comes from electrolysis of water
  • Eliminates pollution caused by burning fossil fuels, the only by product is water
  • Have a higher efficiency than diesel or gas engines
  • Eliminates economic dependence on politically unstable countries for fossil fuel
  • Some have low heat transmission-ideal for military applications
  • Most operate silently compared to internal combustion engines
  • Maintenance is simple since there are few moving parts in the system
  • Operating times are much longer than with batteries

Hydrogen fuel cells Cons
  • Reforming is technically challenging and not environmentally friendly
  • Production, transportation, distribution and storage of hydrogen is difficult
  • Driving range of cars is shorter than in a traditional vehicles
  • Refueling and starting times of fuel cell vehicles are longer
  • Currently expensive to produce, since most units are hand-made
  • Fuel cells are generally slightly bigger than comparable batteries or engines
  • The technology is not yet fully developed and few products are availabel
  • Some use expensive materials
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