The electrification of ships has a long history.  During WWII, diesel engines 
were in short supply. The US needed tanker ships because a large number were 
sunk by the German U2 boats.  The T2 class tanker was the primary tanker.  
Since diesel engines were in short supply, the US started installing large 
electric propulsion motors.  Even today some of these T2 tankers are still in 
service with the original electric motors.  In the 1980's, I did some design 
work on the electrical control system on the USNS Redstone.  The Redstone was a 
T2 tanker with the original electric motors and drive cubicle.  The ship had 
been extended by 72ft by adding a section in the center.  The Redstone was 
station in FL and monitored launches from Cape Canaveral/Kennedy.  The ship was 
finally decommissioned in the 2000s and cut up for scrap.  The electric motors 
and drive controls were built by GE and as far as I know they operated trouble 
free.  I reviewed the controls for possible replacement; however, due to cost 
it was not done.  In addition, they still worked OK.  The controls were 
manually operated and the contractors made a huge noise when operating.  To say 
the least, the electric propulsion system and drive was amazing.  Great job for 
me.


Most if not all ocean going cruise ships have AC/AC drives.  The QE2 was 
converted in the 1980 to AC/AC drives.




________________________________
From: EV <ev-boun...@lists.evdl.org> on behalf of brucedp5 via EV 
<ev@lists.evdl.org>
Sent: Wednesday, October 4, 2017 4:08 AM
To: ev@lists.evdl.org
Cc: brucedp5
Subject: [EVDL] EVLN: YARA Birkeland zero emission autonomous cargo e-ship (v)



https://cleantechnica.com/2017/09/30/final-design-autonomous-electric-container-vessel-known-yara-birkeland-revealed/
[https://cleantechnica.com/files/2017/09/final-design-of-autonomous-all-e-150x150.jpg]<https://cleantechnica.com/2017/09/30/final-design-autonomous-electric-container-vessel-known-yara-birkeland-revealed/>

Final Design Of Autonomous, All-Electric Container Vessel — Yara Birkeland — 
Revealed<https://cleantechnica.com/2017/09/30/final-design-autonomous-electric-container-vessel-known-yara-birkeland-revealed/>
cleantechnica.com
The final design of the all-electric, autonomous container ship known as the 
Yara Birkeland has now been completed, and testing has commenced at SINTEF 
Ocean’s 80 metre test tank facility in Trondheim, Norway. Accompanying this 
announcement, the Norwegian government enterprise known as ENOVA revealed that 
it will be providing support to the project in the form


Final Design Of Autonomous, All-Electric Container Vessel — Yara Birkeland —
Revealed
September 30th, 2017  James Ayre

[videos
https://youtu.be/CK600K1tYUQ
[https://i.ytimg.com/vi/CK600K1tYUQ/maxresdefault.jpg]<https://youtu.be/CK600K1tYUQ>

Testing the YARA Birkeland<https://youtu.be/CK600K1tYUQ>
youtu.be
Model tank testing of the worlds first autonomous zero emission container 
feeder.


Testing the YARA Birkeland

https://youtu.be/OdWOAgc79aM
[https://i.ytimg.com/vi/OdWOAgc79aM/maxresdefault.jpg]<https://youtu.be/OdWOAgc79aM>

Autonomous ship model tank testing<https://youtu.be/OdWOAgc79aM>
youtu.be
Model tank testing of the worlds first autonomous zero emission container 
feeder, the YARA Birkeland.


Autonomous ship model tank testing

https://youtu.be/4Ogg4_ge0f8
[https://i.ytimg.com/vi/4Ogg4_ge0f8/hqdefault.jpg]<https://youtu.be/4Ogg4_ge0f8>

YARA Birkeland zero emission autonomous container 
feeder<https://youtu.be/4Ogg4_ge0f8>
youtu.be
The first commercial autonomous vessel in the world, and also the first 
commercial zero ballast vessel. A game changer for the environment and for the 
shippi...


YARA Birkeland zero emission autonomous cargo e-ship
]

The final design of the all-electric, autonomous container ship known as the
Yara Birkeland has now been completed, and testing has commenced at SINTEF
Ocean’s 80 metre test tank facility in Trondheim, Norway.

Accompanying this announcement, the Norwegian government enterprise known as
ENOVA revealed that it will be providing support to the project in the form
of a NOK 133 million ($16.7 million) financial contribution.

While a full-scale version of the new design has yet to be revealed
(obviously), the recent announcement was accompanied by the reveal of a
6-meter long, 2.4-ton model. The ship itself is expected to be delivered and
to begin testing and operations in early 2019, with fully autonomous
functioning expected to begin in 2020.

Once in operation, the Yara Birkeland will displace the equivalent of 40,000
semi truck trips from Yara’s Porsgrunn fertiliser plant in southern Norway
to the ports of Brevik and Larvik — and will thus curtail substantial
greenhouse gas emissions.

The press release provides more: “Following the announcement in May, the
vessel has been designed at Norwegian design and engineering company Marin
Teknikk. A cutting edge six meter long and 2.4 tons model of the final
design using technology destined for the real ship, including a fully
working thruster system from KONGSBERG, will now undergo comprehensive
testing at SINTEF Ocean before construction of the full-scale vessel starts.
The decision of where the vessel is to be built will be decided and
disclosed by the end of 2017.”

The President and CEO of KONGSBERG, Geir Håøy, commented on the news:
“Initial tests of the model were successful, proving both concept and the
technology. The testing at SINTEF Ocean marks an important milestone in the
development. This vessel is important for the entire maritime industry, and
Yara deserves praise for their initiative and commitment. Yara Birkeland is
the start of a major contribution to fulfilling national and international
environmental impact goals, and will be a global milestone for seaborne
transportation.”

KONGSBERG itself will be providing the Yara Birkeland’s electric drive,
battery systems, propulsion control systems, and autonomous system sensors.
[© Sustainable Enterprises Media]




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