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Published on January 13th, 2013 | by Jo Borrás

10

First Norwegian Electric Ferry Sets Sail

With enough room on deck for 360 passengers and 120 cars, Norway’s latest ferry shuttle was designed to minimize fluid drag. In order to reduce the ferry’s weight for greater efficiency, the ferry’s designers have made the hulls much lighter than usual, using aluminum instead of conventionally-used steel. The ship is motivated by a 10-ton battery that powers two electric motors.

That’s right, gang: it’s a giant electric ferry boat with a 10 ton battery!

Keep in mind, that’s metric tons, which are a touch over 10% more massive than ‘Murican tons. For a bit of perspective, that means the battery weighs over 22,000 lbs. (or, about as much as 10 Mitsubishi MiEVs).

The best part? The electric ferry’s huge battery can be fully recharged in 10 minutes, so the ferry can be made ready to push off with all of its 800 KWs of engine power at the captain’s command as soon as the cars and passengers are ready to go.

All the power. No waiting. The future is awesome.

 

Source: Inhabitat.



About the Author

I've been involved in motorsports and tuning since 1997, and write for a number of blogs in the Important Media network. You can find me on Twitter, Skype (jo.borras) or Google+.



  • http://ttxgpmatters.wordpress.com ttxgpfan

    800kWh charged at a 6C rate? Heck yeah!

    • http://gravatar.com/protomech protomech

      The phys.org article states that 400 kW battery power is typical for the 30 minute crossing. Presumably one crossing uses (around) 200 kWh.

      The battery is surely somewhat larger – say 400 kWh – discharged from 75% to 25%. 200 kWh replenished in 10 minutes is 1200 kW, or 3C at 400 kWh.

      Presumably the 10 metric ton = 10000 kg weight quote is for a fully assembled pack with all heating/cooling. Still, at 400 kWh that’s 40 Wh/kg. Not much better than lead acid, but fast charging and (hopefully) much longer life cycles will make up for it.

      Assuming 75% efficiency from the charge/discharge auxiliary battery packs on either bank and a 80 minute round trip time w/ 10 minute charge, the local power grids on each side would need to supply around 200-250 kW of power.

      Pretty neat. Hope this makes it to production.

  • http://gravatar.com/zivbnd zivbnd

    Your metaphor threw me, Jo. I thought the ship had actually sailed already. But it won’t be launched for quite a year or two and won’t start service until 2015. Too bad, I would love to see pictures of this ship doing its stuff!

    • http://www.facebook.com/mac.mcdougal.5 Mac McDougal

      Same here zivbnd.

      The phrasing ” **was** designed to” implies that the ship is now sailing. Also, the 10 minute recharge needs a bit of explanation. The original post on gizmag asks the question “10 minutes from empty?,” noting that the local grids would be unlikely to be able to accomplish such a feat, and mentioning that the plan includes shoreside batteries for the recharge. A little more care on the editorial side, anyone . . . ?

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  • http://thegreatermarin.wordpress.com David Edmondson

    Speed! What’s the speed?

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