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hmmm (lemmy.world)
submitted 1 month ago* (last edited 1 month ago) by bazzett@lemmy.world to c/hmmm@lemmy.world
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[-] brucethemoose@lemmy.world 0 points 1 month ago* (last edited 1 month ago)

This is a good idea, though.

Piston engines are way, way, way more efficient (and cheaper to make) when optimized for one RPM and a static load (like a generator). They can be tiny if running at 100% throttle all the time; a few horsepower is enough. Excluding the transmission saves weight/cost, and a generator for a few horsepower isn’t that big.

Yeah, you get electrical loss, but everything else more than makes up for it.

[-] deltapi@lemmy.world 1 points 1 month ago

This is what diesel locomotives do.

this post was submitted on 09 Mar 2026
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hmmm

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