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posted by martyb on Wednesday January 15 2020, @02:19AM   Printer-friendly
from the how-long-is-the-extension-cord? dept.

BBCTech:

Powered entirely by batteries, Ellen is something of a Tesla among ferries. Fully charged, the 60m vessel can sail 22 nautical miles with up to 200 passengers and 30 cars onboard.

[...] Totalling 4.3MWh this is the largest battery capacity at sea and equivalent to the average amount of electricity a UK household consumes each year.

[...] After a 70 minute voyage, Ellen arrives at the harbour in Søby and moors alongside the charging station.

A mechanical arm plugs in and recharges the batteries in less than 25 minutes with clean energy supplied by local wind turbines.

[...] "We are paying maybe 25% of what you would pay for running a similar diesel vessel." says Ms Heinemann. "So that's the significant saving."

Electric propulsion is beginning to spread from passenger cars to trucks and now ferries.


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  • (Score: 2, Interesting) by anubi on Wednesday January 15 2020, @03:49AM (1 child)

    by anubi (2828) on Wednesday January 15 2020, @03:49AM (#943437) Journal

    Ships sometimes need a gravitic mass at the lowest part of a ship for stability reasons.

    Maybe the weight and size of the battery bank is inconsequential for this application.

    Just make water doesn't get in it. As it will likely be submerged in use, which in itself may be a plus as under rapid charging, the battery may need to be cooled.

    Could be an interesting design.

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    "Prove all things; hold fast that which is good." [KJV: I Thessalonians 5:21]
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  • (Score: 2) by corey on Thursday January 16 2020, @08:51AM

    by corey (2202) on Thursday January 16 2020, @08:51AM (#943934)

    Interesting idea, that is true about ballast.

    I think this is one of those "about bloody time" things. Ships are good at hauling heavy loads, batteries are just that.