Along with all the problems of storing hydrogen, which needs high pressures and cryogenic cooling, even if it is adsorbed in porous materials like zeolites (none of which have met the storage capacity criteria demanded for them; last posting here "Hydrogen Storage in Zeolites"), and the fact that it makes some metals brittle over time and hence leaky (NOT good for an explosive gas), it might be better to store the electrons in "batteries" to get a better overall efficiency of 50% than 20-25% for hydrogen, when we could get away with around 20,000 2 MW or 8,000 5 MW turbines. That same job could be done using another 13 nuclear power plants, to be built on top of the 30 or so that will already be needed by 2025, to replace the current generation of them.
If we were to localise our society and cut transport by 90% we would be down to just 10% of this, needing only 2000 2 MW or 800 5 MW turbines. There would be no planes though, and if we want to keep them flying some other means must be found to do so.
Using energy in the form of electrons means that the existing electricity distribution infrastructure could be adapted, rather than introducing a wholesale entirely new hydrogen storage and distribution network on a gargantuan scale.
Neither biofuels nor biohydrogen can meet the huge present demand for transportation fuels either, and would vastly exceed all available arable land for food production even to provide 10% of what is currently used to run cars and road transport in general. However, along with electricity, biofuels could satisfy much of the energy needs of localised economies.