this post was submitted on 19 Jul 2026
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122
India launches first hydrogen-powered train built in the country to expand clean energy on railways (apnews.com)
submitted 6 days ago by FoxtrotDeltaTango@sh.itjust.works to c/technology@lemmy.world
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cross-posted from: https://lemmy.world/post/49581602

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[–] Noobnarski@lemmy.world 7 points 4 days ago (3 children)

So useless, just use overhead lines or batteries.

Hydrogen is just so much less efficient that it doesn't make sense except for industrial processes where there is no alternative.

The train line close to us already switched to battery trains and most other lines are overhead powered. And then the battery train just charges when it gets to parts of the tracks where there is overhead lines, no extra infrastructure needed.

[–] boonhet@sopuli.xyz 3 points 4 days ago

Yeah... It makes a modicum of sense for cars where overhead lines are impractical and batteries heavy...

But TRAINS? Didn't we figure out electrification of trains via overhead power lines idk... nearly 150 years ago apparently? Quite literally the easiest mode of transport to electrify...

[–] fruitycoder@sh.itjust.works 1 points 4 days ago

I genuinely wonder what the costs comparison looks like for these options.

I could see the use case for hydrogen as a battery, in rural areas where transporting power over wire would be cost prohibitive. The added benifits being that if you used most of the fuel in between electrified lines you lose the weight of the fuel unlike batteries.

[–] CheeseNoodle@lemmy.world 2 points 4 days ago

Eh its still a win, a large scale test cast for a still fairly unproven technology is bound to provide some useful information.