As for hydrogen - check Lakehurst, N.J. - the Hindenburg. Oh I know, I would like to see hydrogen used as an auto fuel also... but not by smokers teenagers, hold-up men - those sorts. I look at Star Wars, the capitol city, all those neat rows of flying vehicles all in good order — and I know it is a galaxy far far away!
not going to disagree with you. Hydrogen engines now have a big niche market in ware house loaders. Likely will remain there until there’s an efficient way to crack hydrogen out of water. —which may be a looong time. That said, I’ve actually seen a couple lab reports of new catalysts that will do just that. We’ll see.
As I mentioned anything significant from hydrogen cars is likely a decade away—unlike electric cars—whose volumes will skyrocket in three years.
Don’t disagree that hydrogen is speculative currently. But there is big money behind it in japan and germany. Both countries have vowed to get off the internal combustion engine—officially because of CO2, unofficially because they don’t have any oil.
Currently in the US hydrogen vehicles enjoy a niche market in warehouses around the country where they move everything around.
imho hydrogen based vehicles won’t take off until its convenient to crack hydrogen out of water. That may take a looong time.
That said I have seen some experiments lately that suggest such is possible. I won’t hold my breath.
http://bigthink.com/robby-berman/researchers-announce-breakthrough-in-separating-hydrogen-from-h2o
https://globenewswire.com/news-release/2017/05/09/980790/0/en/HyperSolar-Announces-Breakthrough-Catalyst-Needed-for-Splitting-Water-to-Produce-Low-Cost-Renewable-Hydrogen.html
https://www.sciencedaily.com/releases/2017/05/170515150734.htm