Electric car ferry to recharge in 10 minutes

Kingfish

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Electric car ferry to recharge in 10 minutes

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Reported today on NBCNews.Com

From the U.S. Pacific Northwest to Norway and hundreds of points in between, every day thousands of people drive their cars onto ferries to get across bodies of water. That trip will start to have a different kind of buzz in 2015 thanks to the world’s first electrically powered car ferry.

The 262-foot catamaran will carry up to 120 cars and 360 passengers, according to Siemens, which is building the boat with the Norwegian shipyard Fjellstrand. It will sail about a four-mile route across a fjord in Norway that connects the tiny towns of Lavik and Oppedal.


The ferry’s 11-ton batteries will recharge during the 10-minute break between runs, according to Siemens. Interestingly, the batteries on the boat will be charged up using batteries on the dock. The dock batteries, in turn, are recharged with electricity from the grid.

The new ferry will save the approximately 264,000 gallons of diesel the current ferry burns annually and the related 2,900 tons of carbon dioxide emissions.

The electrically powered ferry was developed for a competition organized by Norway's Ministry of Transport. It won a license to operate the route until 2025.

According to Siemens, all crossings in Norway shorter than 30 minutes could be served with electric ferries using today’s battery and recharging technology. If so, some of those ferries could find a home crossing parts of the Pacific Northwest’s Puget Sound.

We have arguably one of the largest ferry systems in the world here in the Pacific Northwest which some pretty dang large monster boats. Not sure we could ever pull off something like a giant electric boat, but certainly the smaller ferries serving the tiny islands could be replaced.

Good development, KF
 
Seems like a nice way to use electric propulsion. It would be great to have something like this in the NW. Thanks for the post.

Rich
 
Thats some big wire... an 11 ton battery, charged at 6c. If high c rate lipo is around 160 wh/kg lets assume thats half that. So 11tons is roughly 9900kg. 9900 kg gives you 9900x80wh. 792,000wh, or 792kw/hr. 792 kw/hr in 10 mins is a 4752kw charge rate :shock: :shock: :shock: 4.2Mw... at a 1kv pack voltage that's a 4752 amp charge rate.
 
Ja! I was just trying to imagine how they hook up the dongle. Betcha no man does that job :twisted: It would have to be like some giganto plug-in when they dock each time. Plus - I bet they're not charging the whole battery; just the amount for the last trip. Otherwise that would be a very bad engineering design. Figure the battery capacity is 1.5 to 3X what they need for the run, and the extra is when they get into trouble. That's the proper way to do it.

Makes you think how large those electrical systems are on submarines huh? 8)

Perhaps a little too big for trolling, KF
 
Farfle said:
Thats some big wire... an 11 ton battery, charged at 6c. If high c rate lipo is around 160 wh/kg lets assume thats half that. So 11tons is roughly 9900kg. 9900 kg gives you 9900x80wh. 792,000wh, or 792kw/hr. 792 kw/hr in 10 mins is a 4752kw charge rate :shock: :shock: :shock: 4.2Mw... at a 1kv pack voltage that's a 4752 amp charge rate.
Mind boggling! A 4 mile traverse should take around 30 minutes, so 2C discharge and 6C charge! I really like to know more about that battery.
 
Looks like it's a 1MW charger and a 1MWh lipo pack :mrgreen: - for a crossing at 13 knots they use a fifth of that pack. To recharge they have to use battery packs on land, too, because the local grid would crash, those packs on land then get slowly recharged for the next round:

http://www.greencarcongress.com/2013/01/zerocat-20130111.html
 
hope usage of electrically running ferries improve their country :) because it redce the crude oil import, resulting in saving of Big bucks $$$.

11 ton battery pack and motor cost double the price of normal engine, thats the price we're giving for GREEN.
 
Hehe... Gonna guess operating costs per mile drop way down (plus "odor free"). :wink:
 
Does it live up to that 10 minute charge? If so, HOW?

http://insideevs.com/scandinavias-first-lithium-battery-electric-car-ferry-completes-over-4000-trips/

320731-750x496.jpg
 
Every day, the ferry is doing 10 round-trips (1.6 km each) and is charged on the mainland between the round trips and during the overnight hours.
Sounds like it's only partially charging during stops, otherwise they wouldn't need to charge at night, so probably less than 6C. I doubt they charge it fully either.
 
The ferry’s 11-ton batteries will recharge during the 10-minute break between runs, according to Siemens. Interestingly, the batteries on the boat will be charged up using batteries on the dock. The dock batteries, in turn, are recharged with electricity from the grid.

The power grid does not have sufficient power to charge the batteries quickly enough, therefore they also use batteries on dock as a buffer.

The batteries are delivered by Corvus.

Pack: 160 x 6.5 kWh (vessel) + 2 x 63 x 6,5 kWh (shore stations)
Capacity: 1.0 MWh (vessel) + 2 x 410 kWh (shore stations)
Bus Voltage: 900 VDC

http://corvus-energy.com/Projects.html
 
Oh goody... On that Corvus site, ANOTHER ferry going 100% bettery-electric (most vessels there as "hybrid"):
Folgefonn.jpg

Battery packs made up of Lithium ion cells (Lithium NMC):
3958%2f0385c0fc-5d01-4e7a-baa1-6590cc829d3b.jpg


Energy 0.27 kWh
Voltage 4.2 V

Amusing Battery Comparison Chart in this page:
http://corvus-energy.com/Technology.html
 
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