Comment The case for Hydrogen (Score 2) 159
At 1/3 yield, electrolyze for Hydrogen has parity with Diesel at about 150-200 €/MWh. This is about twice what a Europe in energy crisis pays per wattage.
Now mind you, that is not why Toyota or a lot of Japanese companies care: They care because they know they are one fun happy global ship war away from being completely barred from using Petrochemicals at any scale.
This create a interesting paradox: Technically one of the Japanese companies could foot the R&D bill to make this technology competitive on the potential edge it has, but the core interest is just to keep a patent pool and production going so Japan don't have to deal with the worst consequences of WW3.
The end result is that we each decade gets some vehicle/production based of Hydrogen, which go and die in the news cycle because its just there as auxiliary potential technology.