bitfucker comments on China launches world’s largest electric container ship with 50 MWh battery

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[–] bitfucker@programming.dev 38 points 2 years ago (4 children)

Until you realize that the energy requirement is also different. Land transport in general is very inefficient. Ship is in fact one of the most energy efficient means of transport.

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[–] ramenshaman@lemmy.world 12 points 2 years ago (1 child)

I don't disagree but every time I've seen a diesel engine on a cargo ship it was absolutely massive.

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[–] bitfucker@programming.dev 29 points 2 years ago

Size wise, it is small relative to the ship size. Look at car engine. How many % of volume is taken up for the engine and fuel tank of car? I think it is close to 30-40%

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[–] Wahots@pawb.social 6 points 2 years ago (1 child)

194 nautical miles isn't terribly far, though. For port to port, sure. For oceanic shipping, I don't think 194 is going to cut it. I think we will probably have to do SMRs or efuels to really cut cargo ship and cruise ship emissions when crossing the Pacific or Atlantic. Though I don't know where nuclear powered shipping (in non-military applications) is in terms of progress.

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[–] anguo@lemmy.ca 1 point 2 years ago

I do think that cargo ships are the one vehicle where solar panels would make sense though. Add that and a sail, and you should be able to increase the range considerably.

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