Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 15-07-2017, 04:37   #1
Cruiser
 
Qayaq's Avatar

Cruisers Forum Supporter

Join Date: Feb 2016
Location: Whangarei NZ
Boat: Valiant 32
Posts: 29
Sailnsea Hydro generators, anyone got One?

Hi, My first post here.
Previous boat a 1980 Amel had a factory fitted shaft alternator which would do about 7 amps at 5 knots but cost 1/3 to 1/2 a knot, ran a fixed 3 blade prop so I only ran it at night when the solar was out.Big help in keeping Radar and Auto pilot up.
I now have Valiant 32 with some solar and wind generator, no chance of a shaft alternator and the engine alternator is small and difficult to enlarge.
I single hand so want to be able to run Radar, AIS and pilot and don't think that what I've got is going to cope power wise offshore.
Valiant 32s aren't known for being fast, especially this one since I've overloaded it with all my gear.
I've toyed with the idea of doing a DIY hydro generator but I want 8 amps at 5 knots and that seems pretty tricky to achieve.
Which leaves me with the horrendously expensive WattnSea.
However I've just come across the sailnsea sailing generator which gives me what I want, the price is better though still painful.
sailnsea MyEsell.Com
Has anyone got one? Are they any good? Seems surprising it's not more well known.
Would appreciate any thoughts on the topic.
Cheers
__________________

__________________
Qayaq is offline   Reply With Quote
Old 15-07-2017, 05:12   #2
Registered User

Join Date: Feb 2012
Location: Toronto area when not cruising
Boat: Bristol 45.5
Posts: 648
Re: Sailnsea Hydro generators, anyone got One?

The idea seems good but that website is terrible.
__________________

__________________
Still looking for our next boat. Have decided we want to have something that will keep us happy for the next 10 years or so. By then I will be pushing 80 and if i am still sailing that will be a very good thing.
AiniA is online now   Reply With Quote
Old 15-07-2017, 07:38   #3
Registered User

Join Date: Jan 2017
Posts: 1,617
Re: Sailnsea Hydro generators, anyone got One?

Adding more complex systems. . .

Are you sure you've got enough battery bank to store the power you're now producing?

No room for another PV panel or two? Would be cheaper & less maintenance.
__________________
john61ct is online now   Reply With Quote
Old 15-07-2017, 08:37   #4
Registered User

Join Date: Jul 2017
Location: Wismar, Germany
Posts: 28
Re: Sailnsea Hydro generators, anyone got One?

There is a german article about the thing from 2012 probably when it was new:

GŁnstiger Strom aus Wasser

They have a diagramm of knots to ampere output. But I am not sure, that they measured this by themselves. Might be that they just put on, what the seller promissed.

It's a small number product developed by a German professor of engineering who sells this and some other gear to emprove electric systems on that not very professional website. Very probable that it is all made in Germany by a local firm an demand.

There should be at least some people around, who installed the system.
Might be interesting to get first hand experiences with spare parts and service before buying.
__________________
Whether you believe you can do a thing or not, you are right - Henry Ford
MartinMV is offline   Reply With Quote
Old 15-07-2017, 09:47   #5
Moderator
 
Pete7's Avatar

Cruisers Forum Supporter

Join Date: Aug 2009
Location: Solent, England
Boat: Moody 31
Posts: 8,050
Images: 14
Re: Sailnsea Hydro generators, anyone got One?

Wow, Euro 1500, you could buy a lot of solar for that.

Pete
__________________
Moody 31 - April Lass
Pete7 is online now   Reply With Quote
Old 16-07-2017, 07:12   #6
Senior Cruiser

Cruisers Forum Supporter

Join Date: Mar 2014
Location: Anacortes
Boat: previous - Whitby 42 new - Goldenwave 44
Posts: 1,705
Re: Sailnsea Hydro generators, anyone got One?

I see that Hydrovane (windvane pilot) sells the Watt n Sea and offers a mount to put it on the back of their windvane shaft. I couldn't find any pricing on any of the websites I looked at (call for pricing). That is always seems to mean the item is very expensive, or, sometimes that they are selling it below the MSRP and can't advertise that.

I know someone who put one on his 47' Benneteau. I'll ask him how it worked going to French Polynesia from Mexico and then to Hawaii and back to the mainland US.
__________________
exMaggieDrum is offline   Reply With Quote
Old 16-07-2017, 07:29   #7
Registered User
 
crashkahuna's Avatar

Join Date: Nov 2010
Location: So. Calif
Boat: Catalina 28
Posts: 124
Images: 20
Re: Sailnsea Hydro generators, anyone got One?

Here's a video of Watt Sea. Looks like a good design and quite pricey.
__________________
crashkahuna is offline   Reply With Quote
Old 16-07-2017, 09:49   #8
Registered User

Join Date: Mar 2017
Location: NC
Boat: Nimble Vagabond
Posts: 32
Re: Sailnsea Hydro generators, anyone got One?

check Good Old Boat
recent issue (cannot remember month) had a review of different designs including diy
__________________
davil is offline   Reply With Quote
Old 16-07-2017, 10:06   #9
Registered User
 
LeaseOnLife's Avatar

Join Date: Apr 2008
Location: Around once, back to work, for a while :-(
Boat: Sailboat
Posts: 1,042
Re: Sailnsea Hydro generators, anyone got One?

Quote:
Originally Posted by davil View Post
check Good Old Boat
recent issue (cannot remember month) had a review of different designs including diy
May 2016
__________________
LeaseOnLife is offline   Reply With Quote
Old 16-07-2017, 10:09   #10
Registered User

Join Date: Mar 2014
Location: UK and Central America
Boat: Tucker CA41 Steel 40 foot Ketch
Posts: 285
Re: Sailnsea Hydro generators, anyone got One?

Have you looked at the Eclectic Engergy site at the various Duogen wind and water generators? see Micro Wind Turbines manufactured by Eclectic Energy Ltd | Wind and water power generation manufacturer shop
__________________
Triumphant is online now   Reply With Quote
Old 16-07-2017, 15:29   #11
Registered User

Join Date: Aug 2016
Posts: 11
Re: Sailnsea Hydro generators, anyone got One?

I realize this is a different brand than OP asked about(i think) but...

__________________
getyourbone is offline   Reply With Quote
Old 16-07-2017, 21:23   #12
Senior Cruiser
 
Emerald Sea's Avatar

Cruisers Forum Supporter

Join Date: Feb 2013
Location: Live-aboard Cruiser
Boat: Lagoon 450
Posts: 525
Sailnsea Hydro generators, anyone got One?

We have used a W&S on our cat for the last 2 yrs for passaging. I dont think a W&S is the answer for you, for as you said, your too slow. I have no experience with the sailnsea but one really need to understand the specs and your expectations. However, it seems you should be considering to increase your battery bank and add solar. Not only does this offer you more passage power but also when your at anchor you'll benefit from having this energy available. Wind turbines are OK but if your passaging downwind they're more of an ordainment.
__________________
Steve
SV Emerald Sea
L450
Emerald Sea is offline   Reply With Quote
Old 17-07-2017, 03:33   #13
Registered User
 
B00B00's Avatar

Join Date: Apr 2017
Location: New Zealand
Boat: Beneteau Oceanis 50
Posts: 57
Re: Sailnsea Hydro generators, anyone got One?

The boat I just brought has the watt and sea 300. I should be able to report back in a few weeks.
B00B00 is offline   Reply With Quote
Old 17-07-2017, 07:23   #14
Senior Cruiser

Cruisers Forum Supporter

Join Date: Mar 2014
Location: Anacortes
Boat: previous - Whitby 42 new - Goldenwave 44
Posts: 1,705
Re: Sailnsea Hydro generators, anyone got One?

Strongly agree with the suggestion above regarding solar and battery capacity in good condition. These should be your priorities way above a water generator or a wind generator. Along with a good alternator and regulator. Even if you don't plan to motor much there will be times you need the battery juice. Your solar should have a good regulator too.
__________________
exMaggieDrum is offline   Reply With Quote
Old 17-07-2017, 07:24   #15
Registered User

Join Date: Sep 2013
Posts: 71
Re: Sailnsea Hydro generators, anyone got One?

Here are 2 other URL with relevant information about water generator I have been looking at in the past:

The Latest in Water Generators | Cruising Compass

http://www.hamiltonferris.com/categories/Water_Power/16
__________________

__________________
Emouchet is offline   Reply With Quote
Reply

Tags
generator, sail

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

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 On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Anyone Try Hydro or Aeroponics on Board ? James S Provisioning: Food & Drink 16 01-06-2017 11:38
Hydro Generators Sevi Electrical: Batteries, Generators & Solar 6 05-09-2016 11:41
Anyone convert their freewheeling drive shaft to a hydro turbine? VinnyVincent Monohull Sailboats 44 13-02-2015 09:44
Herreshoff yachts? Anyone got one? Herreshoff Monohull Sailboats 21 02-10-2014 06:28
Generators - Have you Heard of Boliy Generators? KayW Electrical: Batteries, Generators & Solar 5 27-10-2009 02:57


Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 13:32.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.