• minibyte
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      3 months ago

      Electric — Amtrak operates electric locomotives primarily on the Northeast Corridor and the Philadelphia to Harrisburg Main Line. These include the Siemens ACS-64 and the upcoming Avelia Liberty trainsets.

      They’re run on the mains though, so aren’t zero-emissions yet.

      • MarkN@mastodon.online
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        3 months ago

        @minibyte hokey dokey :)
        But it depends where the hydrogen comes from though. (I can’t view the article as it doesn’t like my ad blocker so apologies if it’s explained there).
        Plus mains electricity can be green, windmills etc.
        Anyhow, sorry to be pedantic.

        • Icanbob@techhub.social
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          3 months ago

          @markno @minibyte Electric trains on catenary are not necessarily a just in time load match with renewable electron availability. Most obvious is Solar PV with the train running at night. H2 produced by an efficient solid oxide electrolyser totally decouples the train load from the renewable electron supply.

          • MarkN@mastodon.online
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            3 months ago

            @icanbob @minibyte interesting point that I hadn’t considered, thank you.

            I suspect that with the right infrastructure catenary would still have the edge - it removes the weight of the battery/hydrogen plant from the train and there’s no reason you couldn’t have a static hydrogen plant feeding power to the wires. Wouldn’t that give a greater benefit? Also you can have a mix of power supplies which addresses the variability of supply, eg, solar, wind and nuclear.