I like the way you think, pyotr.
The only thing I would personally disagree on, and please understand that it's just for the sake of having a conversation
, but I would not bet on Hydrogen. It looks good on paper, but that's about as far as it goes.
In practical terms, mass-production and refinement process is still purely in the research stage. Then, short of the asphalt we drive on, the entire transportation system (from the car to the gas station) would have to be completely revamped. Not to mention that if any of this comes even close to reality, we are talking about changing the global balance of power and as well as the way we think "energy". (That is assuming, of course, that we are deriving the Hydrogen from water, not fossil fuel that our esteemed President has actually proposed.)
But that is admittedly a minor nit-pick.