Commented On: Fuel-Cell Vehicles Are Likely Coming (A Few): Who's Winning?

Green Car Reports 09/13/2011 - 03:40:29 PM 0 Views 42 comments

Also, there's more hydrogen in a liter of biodiesel than a liter of liquid hydrogen.

Commented On: Fuel-Cell Vehicles Are Likely Coming (A Few): Who's Winning?

Green Car Reports 09/13/2011 - 03:23:07 PM 0 Views 42 comments

At 850°C, 225 megajoules are required (64% efficient) to electrolyze 1 kilogram of hydrogen from water. http://en.wikipedia.org/wiki/High-temperature_electrolysis

Compressing that to 350 bar (5000 psi) takes only 11 MJ. http://www.hydrogen.energy.gov/pdfs/9013_energy_requirements_for_hydrogen_gas_compression.pdf