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Gaseous or liquid hydrogen? It’s a dilemma facing everyone involved in the refueling of heavy-duty vehicles. It makes no difference to the power system whether the fuel is a gas or a liquid as the fuel cells can process the hydrogen regardless. In infrastructure terms, however, it’s another matter. The consensus among experts is that it’s not economically viable for fuel station operators to support every available technology in the long run. One alternative is cryogas, which is produced by cooling pressurized gas to extremely low temperatures or by directly compressing liquid hydrogen. Work is currently underway to deliver cryogas tank systems that will give a range of around 620 miles (1,000 kilometers), the CryoTRUCK project and the Salzburger Aluminium Group initiative being prime examples.
