Electric tug for Auckland - Ships Nostalgia
20:52

Welcome
Welcome!Welcome to Ships Nostalgia, the world's greatest online community for people worldwide with an interest in ships and shipping. Whether you are crew, ex-crew, ship enthusiasts or cruisers, this is the forum for you. And what's more, it's completely FREE.

Click here to go to the forums home page and find out more.
Click here to join.
Log in
User Name Password

Electric tug for Auckland

User Tag List

Reply
 
Thread Tools
  #1  
Old 12th October 2019, 00:11
spongebob's Avatar
spongebob spongebob is online now
Spongebob
Organisation: Merchant Navy
Department: Engineering
Active: 1957 - 1961
 
Join Date: Dec 2007
Posts: 8,817
Electric tug for Auckland

Auckland Harbour Authority has placed an order with Dutch builder Damen for the world's first electric powered Harbour tug.
The 24.7 metre tug will have a 70 tonne bollard pulll and will cope with three or four average shipping moves on a full charge, 3 to 4 hours work , and a two hour quick recharge time.
On board generators will provide 40 Tonne pull in the event of main power failure.
Costing twice as much as a conventional diesel tug it will be 1/3 of the cost to man and run.

Bob
__________________
spongebob,
Reply With Quote
  #2  
Old 12th October 2019, 21:45
OilJiver OilJiver is offline  
Senior Member
Organisation: Merchant Navy
Department: Engineering
Active: 1973 - 2009
 
Join Date: Jun 2014
Posts: 862
70 tonne bollard pull, that's a v useful harbour tug Bob. All credit to Ports of Auckland for committing to a vessel with full electric (non-hybrid?) propulsion. Impressive operational cost savings & I guess build economics will only get better over time. (One of a number of game changers maybe for short haul vessels).
Reply With Quote
  #3  
Old 13th October 2019, 09:25
david freeman david freeman is offline  
Senior Member
 
Join Date: Jan 2006
Posts: 1,016
very challenging? I have a question??, Throughout the day the tug uses energy? Does it have a dedicated harbour berth, if so How when the tug master has been on duty for a period of time, after the last top up charge, how for interest is the or are the calculations for the next tow calculated, based upon a nominal discharge of battery energy, so that the tug, can complete the task in hand, and make to its dedicated berth for a recharge.
Idle question, is this tug also a 'FIRE FLoat' as part of the harbour Health and safety precautions???
Excuse my questions I had only picked up the blog from post 2 not##1 apologises.
I see you have the faithfull reserve diesel power, can this top up the total electrical requirements ''in Time''??

Last edited by david freeman; 13th October 2019 at 09:30.. Reason: reassement of facts
Reply With Quote
  #4  
Old 13th October 2019, 20:42
spongebob's Avatar
spongebob spongebob is online now
Spongebob
Organisation: Merchant Navy
Department: Engineering
Active: 1957 - 1961
 
Join Date: Dec 2007
Posts: 8,817
http://www.poal.co.nz/media/ports-of...t-electric-tug,

I hope that this fills in a few blanks David.

Bob
__________________
spongebob,
Reply With Quote
  #5  
Old 14th October 2019, 00:58
kewl dude's Avatar
kewl dude kewl dude is online now  
Senior Member
Organisation: Other Merchant Fleets
Department: Engineering
Active: 1960 - 1976
 
Join Date: Jun 2008
Posts: 1,513
That is interesting as far as it goes. I wonder what is the recharging electric energy source? Solar or Hydro? That should be good? Oil burning steam or diesels?

Greg Hayden
Reply With Quote
  #6  
Old 14th October 2019, 05:14
spongebob's Avatar
spongebob spongebob is online now
Spongebob
Organisation: Merchant Navy
Department: Engineering
Active: 1957 - 1961
 
Join Date: Dec 2007
Posts: 8,817
Greg, New Zealand is about 80% renewable energy now, mostly Hydro but geothermal and wind also with the beginnings of solar.
We have one Hydro station at Manapouri that is entirely dedicated at cheap rates to the Rio Tinto subsidiary aluminium smelter at Buff Harbour , the feed stock comes from Australia's Cape York area to be part processed at Gladstone before shipment to Bluff for refining , a rather energy consumptive route which is marginal these days and if RT opt out we will be have Hydro capacity beyond current demand .
This fosters a lot of interest in electrical propulsion of cars and ships. The latest project is electric powered jet boats on the southern tourist lakes .

Interesting times in that field.

PS The tug carries deisel for the stand by on board generators

Bob
__________________
spongebob,
Reply With Quote
  #7  
Old 14th October 2019, 09:29
david freeman david freeman is offline  
Senior Member
 
Join Date: Jan 2006
Posts: 1,016
Thanks noted Blog##4 very informative, well thought out. Good luck, when the tug becomes a reality.
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off




Support SN


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
User Alert System provided by Advanced User Tagging v3.1.0 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.