If people could produce significant amounts of hydrogen for their own use, then hydrogen powered personal transport would be ok.
It is likely however that such vehicles will have to be both highly efficient, and hybridized to achieve an acceptable result. For example the vehicle would be small, aerodynamic, with a very efficient electric motor as a primary powerplant. An ultra-efficient petro engine would be used to charge the batteries. This could be hybridized further with ultracapacitors for regenerative braking, a fuel-cell electrolyzer and heat engine to capture waste heat and to supplement the IC engine with hydrogen. Even solar power could be a significant hybridization option depending on where you live. Perhaps ocean-going vessels could use wind or solar to hybridize their engines?
Space/Science » in reply to Re: Taxes
Re: Home Electrolyzers