Thanks, glimpsed over that line too fast. So durability concerns are most likely the limiting factor, hence the trial run. If, say, the battery can’t keep up wih continuously getting topped up and fails after a short time, it’s impractical/expensive. But could be the other way around as well.
Well, trials are there for a reason. Battery-only-powered trains could be a good idea or a bad idea.
Remember the trial project for overhead wiring for trucks on the motorway? It ran for a couple of years, and the end result was that it wasn’t feasible, despite some interesting benefits. But if it weren’t for the trial, some people would still think it was feasible, while others would think it was unfeasible.
I’m leaning more on the unfeasible side with this train, but let’s just see what happens.