[senectus1]

assuming we can make the cost something more affordable: Regions of the world DO have excess amounts of renewable energy, they have no way to move that energy to locations that dont have excess renewable energy. thats why turning it into hydrogen might be a part of the solution.

on top of that, there are lots locations around the world that are underdeveloped but do have the potential for turning their renewable resources into an export. That would be an almost silver bullet. to uplift developing nations by selling developed nations green energy.

If we can get the conversion cost effective, and the transport and storage reliable and cost effective then we can change the world for in a bigger way than the internet has.

[plus]

If HFC vehicles ever become mainstream, hydrogen is going to have to be produced on-site at filling stations. Hydrogen is extremely difficult and dangerous to transport. If you try to use pipes, the hydrogen will be able to leak out of even the smallest of cracks, and can even diffuse through metals. It's extremely difficult to compress and becomes a serious explosion hazard.

I'm somewhat optimistic that HFC will play a role in the future of transportation, but there are still a lot of issues that need to be ironed out.