this post was submitted on 01 Oct 2023
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Yeah true I didn't even think about batteries or hydrogen as diesel replacements for trains. The up to 6MWh of storage your article quotes for the short distance hauls sounds like a lot of storage, but I guess there is a considerable amount of surface area at the bottom of a locomotive that could be filled with batteries, and if each locomotive can't hold enough storage to pull the load, you can just add another locomotive to the train to make up the difference.
the problem though is that the production of batteries produce pollution, and they have a set lifetime, unlike overhead wires.
No doubt, but steel production produces a lot of pollution as well. It will be interesting to see the progression of green steel manufacturing tech and battery tech vs one another over time, even hydrogen tech. Its a tough choice because at any point we could see a major breakthrough in one of them making all the others relatively less cost and environmentally sound options.