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Hydrogen locomotive
(www.money.pl)
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this post was submitted on 17 Sep 2023
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Just put lines above the track...
Sometimes building infrastructure is more expensive than a hydrogen-powered train. I guess.
Maybe at the train track end. But creating the hydrogen and the needed infrastructure for both the creation and distribution, plus the enormous amounts of energy wasted in the production, is unlikely to be more cost effective than the investment in electrifying existing railroads.
Speaking about Germany in particular: We need hydrogen infrastructure anyway, if nothing else then as chemical feedstock and for steel smelting. And the pipeline network is already half-way in place, more and more parts are getting switched over from natural gas (the network started out as a coal gas network (hydrogen content of often over 50%) before natural gas became a thing, it's built to the necessary standard). Bonus: The pipeline network can store three months of total (not just electricity) of energy usage between minimum and maximum operating pressure.
Wind farms and electrolysing plants as well as conversion to ammonia (because transport) is getting built in Namibia and Canada, scheduled to be our main energy partners in the future.
It never is, and won't be until we essentially have free energy. Any serious economic study has concluded as much.
No especially not in the long run and especially especially not regarding efficiency