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Can you explain why would one power trains by hydrogen, when there are already electricty lines running over tracks ? I cannot imagine a case, Unless we dont t

Can you explain why would one power trains by hydrogen, when there are already electricty lines running over tracks ? I cannot imagine a case, Unless we dont trust the grid reliability. What am i missing here ?

Ma8ee 5y ago
There aren’t electricity lines running over all tracks. In particular freight is still often hauled by Diesel engines.
- mnadkvlb 5y ago
  oh, that makes sense. Its been a long time i saw diesel engines and probably thought its a past thing. Apparently not :)
  - bluGill 5y ago
    Most freight in the world is diesel (that is diesel electric). For passenger trains, only tourist trains run on non-electric lines - many steam engines, but there are some diesel as well. (Amtrak should take this as an insult)
    - asdff 5y ago
      Most (maybe all?) of metrolink in southern california is not yet electrified or even entirely double tracked. 12m boardings a year before the pandemic so it still gets used.
      - bluGill 5y ago
        Another example of a badly run system with success despite itself
- theshrike79 5y ago
  AFAIK many if not most trains (in Europe at least) are diesel-electric. The drive train is electric, they're just running a diesel generator to power them.
  - Ma8ee 5y ago
    I didn't know, so your comment prompted me to do some reading. Apparently diesel-electric is what has been in use more or less from the start. It's too hard to make clutches usable for trains.
aembleton 5y ago
Railway lines that aren't electrified and with no plans to do so.