I dunno about when they actually made it profitable to produce hydrogen fuel. Last i heard they didn't. A guy I know who has old T-Birds worked for a big think tank outfit that was attempting, as of last year, to work out feasible ways to scientifically produce commercially viable hydrogen fuel.

I say commercially viable because although, yeah we can produce hydrogen fuel to run vehicles, it took $1.10 worth of energy to produce $1.00 of fuel! It is not like refining petroleum.

So I really don't know why there is this happiness for a fuel that losses money to produce. Don't we have a enough governnment waste?

Sure they may have some breakthrough that will cut production cost but who knows when.