Hydrogen also requires quite a bit of infrastructure that hasn't been built out, whereas railways generally have an electrical supply already. I suspect that wi

Hydrogen also requires quite a bit of infrastructure that hasn't been built out, whereas railways generally have an electrical supply already. I suspect that will make batteries a lot more competitive in the short term. Hydrogen could make sense if it can overcome those hurdles. But with improvements in battery technology (solid state lithium batteries seem to be coming soon) I wonder if it will ever be better enough to gain adoption.