Its weird how Toyota had the first mass-market PHEV with the Prius but got hyperfixated on hydrogen cars, and Nissan had one of the most successful BEVs (Leaf 2, maybe even Leaf 1) and just sort-of gave up. I vaguely remember Honda having a decent EV.
I wonder what makes EVs so antithetical to Japanese car companies..
In my opinion this is complete nonsense and after decades very little has happened.
Even for planes I don't think its the future. Just going one step further and making SAF is just a better plan.
With hopefully more trains, and electric planes for many shorter routes.
Hydrogen is very impractical. Leaks easely and the pressure involved is scary. It is no surprise that good alternatives more or less scrapped the whole thing.
Currently, most hydrogen is produced from fossil fuels, specifically natural gas. Electricity—from the grid or from renewable sources such as wind, solar, geothermal, or biomass—is also currently used to produce hydrogen. In the longer term, solar energy and biomass can be used more directly to generate hydrogen.
(Noting that this is hydrogen for vehicles; hydrogen in other applications are separate matters that should not be painted with the same broad brush.)