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a tank with pure hydrogen of any quantity is a very dangerous bomb.

That seems like a solvable problem to me. By limiting concentration, removing oxygen, and investing heavily into rupture-resistant tanks, is it feasible that the risk could be brought in line with other fuel storage standards?

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I actually have a vehicle that is powered exclusively by a very efficient hydrogen storage technique. It basically relies on a liquid that is made up of long chain hydrocarbons. This makes the fuel source both very energy dense and relatively stable.

Wow! The wonders of such a storage technique! Hopefully the production of this liquid doesn't peak anytime soon... :)

According to Wikipedia, hydrogen is flammable in concentrations from 4% to 75%. Its likely any tank and transfer system for hydrogen fuel would be cost prohibitive or risky.

It's been a long time since I had chemistry, so I don't know, a lot of people are interested in hydrogen fuel. However, the original post about the boat succeeding at this seems unlikely with current technology.

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