Looking for Feedback on Electric Propulsion - Page 3 - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > On Board > Gear & Maintenance
 Not a Member? 
  #21  
Old 05-01-2008
buckeyesailor's Avatar
Senior Member
 
Join Date: Mar 2008
Posts: 339
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 7
buckeyesailor is on a distinguished road
You can have one of my cookies Wombat!
__________________
Poverty motivates me in ways prosperity never could.
(stolen from Eddie Jones)
Reply With Quote Quick reply to this message Share with Facebook
  #22  
Old 05-06-2008
seanseamour's Avatar
seanseamour
 
Join Date: Feb 2007
Location: Provence, France
Posts: 29
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
seanseamour is on a distinguished road
Send a message via Skype™ to seanseamour
GreebBoatBateauVert database

Having just found your thread I suggest you have a look at the webiste we are building - so much is happening so quickly that it is difficult to decide what is the best way to go. If you are thinking of going diesel-electric there are many configurations, we know a few up and running, have several developments under waygreenboatbateauvert.com. Happy to share any knowledge we have, much more than published.
Reply With Quote Quick reply to this message Share with Facebook
  #23  
Old 05-06-2008
chucklesR's Avatar
Senior Member
 
Join Date: Sep 2007
Location: Pasadena Md - Magothy side
Posts: 5,979
Thanks: 10
Thanked 31 Times in 31 Posts
Rep Power: 10
chucklesR is a jewel in the rough chucklesR is a jewel in the rough chucklesR is a jewel in the rough
SeanSeanmour,

great links, good info - unfortunately none of it changed my mind so far.

For me it still comes down to batteries and time.

It's not time for batteries yet.

"The completed battery pack contained 18 six-pack building blocks with 108 individual batteries. The total weight was 930 pounds. Total volume was around eight cubic feet. Because of their greater discharge capacity, Tether's 162 amp-hour configuration is equal in performance to 12 AGM 4D batteries in series, but is 30% lighter.

The 162 amp-hours of Tether's test configuration proved to be more than enough capacity for the Lagoon 47 testbed. It has two 9 kw motors that draw 64 amps each at maximum throttle. The same capacity should work fine on the hybrid Lagoon 500s, Tether says. "It's a heavier boat with 16 kw motors, but the waterline is longer so it's more easily driven."

"
They don't give a price - they hope is becomes comparable (over time) with the 16 life line 8d's agm's it's replacing (about 9.5k). These are about the best batteries out there you can buy at this point in time.

Future batteries don't push my boat.

That's less than 3 hours motor time on the batteries. Great if the gale force winds blowing me to the lee shore abate in time, not so good if not. The two 20kw gensets (29 hp?) on that boat are each about what I have as a full up motor - and replace the 50HP diesels that the old ugly non-green Lagoon's have. Doesn't seem to make sense to me to have two gensets, electric motors, controllers and a ton of batteries so I can get what? Have smaller diesels? That's the whole deal?

No thanks.

I'll go green by sailing more.
Reply With Quote Quick reply to this message Share with Facebook
Reply

Quick Reply
Message:
Options

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Register Now

In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




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

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Electric propulsion scrumhalf Gear & Maintenance 3 05-01-2008 06:55 PM
Electric Motors and Sailing Vessels Mark Matthews Gear and Maintenance Articles 0 11-17-2002 08:00 PM
Choosing and Installing an Electric Windlass Sue & Larry Gear and Maintenance Articles 0 09-06-2002 09:00 PM
The Great Windlass Debate SailNet Seamanship Articles 0 11-30-2001 08:00 PM
The Great Windlass Debate SailNet Gear and Maintenance Articles 0 11-30-2001 08:00 PM


All times are GMT -4. The time now is 04:35 PM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.