Can anybody recommend a good introduction/overview of electric systems on a boat for somebody that knows nothing about it? How it all works? How you know how much generating/battery capacity you need?

Thanks,

Donnie

Views: 361

Reply to This

Replies to This Discussion

Donnie, this is a really important question and what this website claims to be all about. We have a category devoted to "resources" and a page for "technical resources" but it is lacking in good information at the moment, I have to admit. It is near the top of my to do list to add some good resources here and really make Electric Seas a central source for general information about electric systems on boats. Please check back here in the next few weeks and you might find what you're looking for here on this website. There is a lot of good information out there but it seems to be scattered and I want to do a better job of collecting it all here. In the meantime, a lot of our members have collected some good information and have good reading lists, like Capt Mike has posted here.

A basic primer I used in building my all electric dory was "Electric Boats: The Handbook of Clean, Quiet Boating".  It's an older book but goes into a lot of detail on how to calculate power needs and battery size. It mostly discusses small electric boats but the information is easy to transfer to larger boats like I did with my 26' dory.  

 It doesn't, however,  go into any details on how to integrate it into larger mechanical systems such as diesel engines etc.  It also doesn't discuss how to integrate it with AC systems in larger boats, nor does it discuss the newer Lithium Iron phosphate batteries that could be used.  The lithium technology looks exciting but it is still  about 3 times as expensive and the standard lead-acid.  I keep hoping the prices come down so I can put into my electric pick-up truck.  I will keep the lead acids in the boat however because they provide my ballast as well.

 

You can find used copies on Amazon at a reasonable price.  I believe it is out of print so new copies are expensive.

Another good source of information on batteries in general, but only batteries, is the "battery university" web site (www.batteryuniversity.com )by the president of a company called Cadex.  You could print off their information pages and compile them into a notebook.

Tom

RSS

Choose your language

Members

Latest Activity

Terry Daudrich updated their profile
3 hours ago
Serge Plante is now a member of Electric Seas
7 hours ago
D. Carl HArris updated their profile
Monday
Brad O'Connell posted a discussion

Significant voltage drop

Hi everyone,I have an electric yacht motor, driven by 8 Trojan T105 batteries, wired in series to produce 48Vdc. I have owned the system and the batteries for  7 years. I have noticed this year that I am getting really significant voltage drops while underway.I can see the motor controller display going from 48 down to 24 Vdc, all within an hour, under what I consider to be normal cruising conditions and amp draw.I guess there may be two problems.1) A resistance problem- maybe thermally induced…See More
Monday
D. Carl HArris posted a discussion

Introduction

Hello,I just joined the group and am looking forward to learning about electric conversions.My wife, Myra, and I have sailed for the past 30 years and currently own a Morgan OI 28.  Spirit still has the original Volvo MD-7A, but the next time the engine requires more than oil, diesel or filters, the electric conversion will begin.  For now I will keep quiet and read all the info on the forums. Glad to be here,CarlSee More
Aug 22
D. Carl HArris is now a member of Electric Seas
Aug 22
Capt. Mike posted a discussion

Harbor test 2014

Just posted some data on the annual harbor test I do with my Thoosa 9000 EP system. Including comparison to the 2013 data:http://biankablog.blogspot.com/2014/08/electric-propulsion-harbor-test-2014.htmlCapt. Mikehttp://biankablog.blogspot.comSee More
Aug 18
Doug Greenwald posted a discussion

Introduction

Hello,I'm Doug and I just discovered this forum and its wealth of info. I've been active in the EV car world for 4 years now, and have continually watched the marine industry make its inroads with electric propulsion over the past several years. I think I'm ready to make the commitment to electric for my Nonsuch 30 "Such is Life"  currently moored in Anacortes, Wa... but soon to relocate in Everett Wa.Having her closer to home will allow this type of major retrofit to happen. The goal is to…See More
Aug 16
Doug Greenwald is now a member of Electric Seas
Aug 15
William Hayley is now a member of Electric Seas
Aug 10
Shannon Ritchie is now a member of Electric Seas
Aug 7
Robert Bracey posted photos
Jul 30
Robert Bracey joined Greg Martin's group
Thumbnail

Duffy Boats

User group for Duffy Boats.See More
Jul 30
Robert Bracey is now a member of Electric Seas
Jul 30
JAMES SCHOFIELD is now a member of Electric Seas
Jul 29
Lauri Strengell joined Greg Martin's group
Thumbnail

Duffy Boats

User group for Duffy Boats.See More
Jul 21
Lauri Strengell is now a member of Electric Seas
Jul 21
Arthur Lifshey is now a member of Electric Seas
Jul 15
Lisa Novy is now a member of Electric Seas
Jul 8
Manuel Marinelli posted a discussion

Electric sailboat 30ft for sale

Hello everyone...After 2 years working on my S2 9.2C she is all set up and good to go and unfortunately at the same time it is the time for me to leave the US again and head back home to Europe. On the plus side for you:Manaia is for saleFor sale is a 30ft Center Cockpit sailboat in great condition with lots of special features and changes. The most recent ones are:- Electric main propulsion (10kW)- Big battery bank (225 AmpH @ 48V)- Dodger- All electric wiring redone- Windvane steering- Solar…See More
Jul 8

© 2014   Created by Greg Martin.   Powered by

Badges  |  Report an Issue  |  Terms of Service