Forget about hydrogen. Hydrogen-fuelled vehicles are science fiction, with an emphasis on fiction.
Mass for mass, hydrogen contains a fair amount of energy. But storing hydrogen in a tank is a nightmare. To store a decent quantity of hydrogen, it must be stored under very high pressure which means extremely heavy tanks i.e. the tank will be many times heavier than the fuel it stores. Also, pressurized hydrogen has the nasty habit to diffuse through any material suitable for building tanks. Leave a filled up hydrogen tank sitting for a week and half its contents will be gone.
Cryogenic storage is an option, but is complicated and expensive.
Bottom line is that building an extended hydrogen fuel infrastructure will be costly and inefficient, and this will be a major hurdle for its adoption as a widely used fuel.
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Re: Hydrogen
Forget about hydrogen. Hydrogen-fuelled vehicles are science fiction, with an emphasis on fiction.
Mass for mass, hydrogen contains a fair amount of energy. But storing hydrogen in a tank is a nightmare. To store a decent quantity of hydrogen, it must be stored under very high pressure which means extremely heavy tanks i.e. the tank will be many times heavier than the fuel it stores. Also, pressurized hydrogen has the nasty habit to diffuse through any material suitable for building tanks. Leave a filled up hydrogen tank sitting for a week and half its contents will be gone.
Cryogenic storage is an option, but is complicated and expensive.
Bottom line is that building an extended hydrogen fuel infrastructure will be costly and inefficient, and this will be a major hurdle for its adoption as a widely used fuel.