Weight of batteries is a big issue with ships. Vaclav Smil calculated diesel is ... | Hacker News

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		sanxiyn on Aug 8, 2019 \| parent \| context \| favorite \| on: Battery-Powered Ships Next Up in Battle to Tackle ... Weight of batteries is a big issue with ships. Vaclav Smil calculated diesel is 20x dense, turning 5000t diesel fuel for Asia-Europe trip to 100000t battery which is not economical. https://spectrum.ieee.org/transportation/marine/electric-con...

WalterBright on Aug 8, 2019 [–]

I wonder if a hybrid can reduce that problem, i.e. a hybrid battery/sail, or even a hybrid battery/windmill system.

A windmill would help both push the ship and generate power to the batteries.

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