Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 21-04-2016, 00:17   #46
Registered User
 
Scottster's Avatar

Join Date: Feb 2012
Location: Sidney, B.C.
Boat: Lagoon L400S2
Posts: 239
Re: Mounting solar panels

And the mount to the boatClick image for larger version

Name:	ImageUploadedByCruisers Sailing Forum1461223021.242713.jpg
Views:	118
Size:	86.7 KB
ID:	122933


Sent from my iPad using Cruisers Sailing Forum
__________________

__________________
Scottster is offline   Reply With Quote
Old 21-07-2016, 11:29   #47
Registered User

Join Date: Apr 2007
Location: New England
Boat: lagoon 380 s2
Posts: 438
Re: Mounting solar panels

Well, I started this thread last Nov, and my solar install is now almost done. The biggest issue was how to mount this, and now after doing it, I can now do it again for probably half the effort and cost! And probably better.

My boat is a new Lagoon 380, in retrospect, if I had the choice of having lagoon do it, I probably would have, but that wasn't an option for me as I purchased a boat already here in the states.

The conclusion I came to was to use brackets that mount to the davits, see the picture below. These are made by lagoon, and are used for their mounting. Unfortunately, lagoon uses older ineffecient panels, they need 3 panels to get what I get with 2.

The first picture is just the mounts on the davit running along the top of them.

The second picture is a frame welded up from aluminum. It was made from 3/16" L bracket, with a T running down the middle to hold each panel.

Two 1/4" T bars are running across the mounts to attach. The mounts came pre drilled, the holes are 22.625" apart.

Unfortunately, the 380 has the traveller across the back of the boat and not up on the bimini. So the length from the back of the brackets to the traveller is very short, and I limited this to being 8" to make sure the traveller can clear the frame (i am still worried about this, I have yet to really sail the boat with the frame on). The panels themselves are 66", which means I have more than 50% of the panel un supported by a cross bar. So some filets were added to provide some support.

Only have 1 panel on, need to get the other one from my shop. The panel when bolted in strengthens the frame, so a bit worried about sailing this week with only 1, but will see how it goes.

I did hook up the panel and tested it about 7pm, controller was saying about 2A out. The panel should put out about 22 at 14V in full direct sunlight, so don't know if this 7pm reading is good or not. Will post more after I get back to the boat. Hope someone can learn from what I did.
Attached Thumbnails
Click image for larger version

Name:	20160715_160332.jpg
Views:	88
Size:	426.4 KB
ID:	128167   Click image for larger version

Name:	20160715_160349.jpg
Views:	92
Size:	428.7 KB
ID:	128168  

Click image for larger version

Name:	20160715_193210.jpg
Views:	90
Size:	412.9 KB
ID:	128169   Click image for larger version

Name:	20160715_193143.jpg
Views:	85
Size:	449.4 KB
ID:	128170  

Click image for larger version

Name:	20160715_193130.jpg
Views:	85
Size:	433.9 KB
ID:	128171  
__________________

__________________
jbinbi is offline   Reply With Quote
Old 21-07-2016, 14:18   #48
Registered User
 
careka's Avatar

Join Date: Apr 2009
Location: Egersund,Norway
Boat: Lagoon380 Comfort#637
Posts: 701
Images: 2
Send a message via Skype™ to careka
Re: Mounting solar panels

this is what i made for our 380 Lagoon 380 Careka: Victron
__________________
careka is offline   Reply With Quote
Old 24-07-2016, 00:56   #49
Registered User

Join Date: Sep 2014
Location: Sydney
Boat: Lagoon 400
Posts: 976
Re: Mounting solar panels

Quote:
Originally Posted by JPS31 View Post
Hello
Please find the installation for 4 solar pannels at the same height than roof (when you put them on the davits, you do not see the sea anymore in the cockpit...) for a L400S2
Picture and mechanical drawings attached

BR
I like this installation. Adds up to 800 W, which is what i believe will suffice for our full time on board.

I currently have 2 x 180W panels & 2 victron 70/15 controllers. New installation would have 4 solar panels, and I am researching idea to have 4 controllers, 1 for each panel. In my solar newbie view, this should be more efficient & great redundancy & can add extra 2 panel installation based on existing working template.

One thing that bothers me: why all installations posted here have 2 controllers only ? Why not each panel its own ?

Anyone ?
__________________
arsenelupiga is offline   Reply With Quote
Old 24-07-2016, 15:32   #50
Registered User

Join Date: Apr 2007
Location: New England
Boat: lagoon 380 s2
Posts: 438
Re: Mounting solar panels

Op here. I have 2 panels and the controllers. But my controllers are $110 each. If I was getting higher end controllers I would have only gotten 1. Each om controllers really only handles 20 a. My panels are 280, or 20a at 14v. So a good start. But this thread I started about how to mount panels on cats, I had another thread, and there are lots in the electronics forum about solar configurations.

Sent from my SM-G900V using Cruisers Sailing Forum mobile app
__________________
jbinbi is offline   Reply With Quote
Old 24-07-2016, 19:35   #51
Registered User
 
PaulinOz's Avatar

Join Date: Jan 2011
Location: East Coast Australia on board L450
Boat: Lagoon 421(2010) & L450(2013)
Posts: 620
Images: 17
Re: Mounting solar panels

One thing that bothers me: why all installations posted here have 2 controllers only ? Why not each panel its own ?

In my case each controller just shy of $1K AUD did not want to pay for six when 2 will do the job just fine.
__________________
Life is to short to drink bad wine.
PaulinOz is offline   Reply With Quote
Old 24-07-2016, 23:54   #52
Registered User

Join Date: Sep 2014
Location: Sydney
Boat: Lagoon 400
Posts: 976
Re: Mounting solar panels

ok thanks i get it. 1 controller will handle say 3 panels better than 3 smaller controllers, 1 per panel.

sorry for the drift.
__________________
arsenelupiga is offline   Reply With Quote
Old 25-07-2016, 01:00   #53
Registered User

Join Date: Feb 2010
Location: Brisbane, Queensland, Australia
Boat: L 400
Posts: 724
Re: Mounting solar panels

Quote:
Originally Posted by arsenelupiga View Post
One thing that bothers me: why all installations posted here have 2 controllers only ? Why not each panel its own ?

Anyone ?
We have 3 controllers, just to be different.

The 3 X 30A Powerteck MPPT controllers were cheaper than one 80A beastie.
Cheaper, added redundancy and the 3 circuits give less drop if partially shaded. More wires though.
__________________
tuskie is offline   Reply With Quote
Old 25-07-2016, 07:41   #54
Registered User

Join Date: Apr 2007
Location: New England
Boat: lagoon 380 s2
Posts: 438
Re: Mounting solar panels

Quote:
Originally Posted by arsenelupiga View Post
ok thanks i get it. 1 controller will handle say 3 panels better than 3 smaller controllers, 1 per panel.

sorry for the drift.
nope. 1 controller just makes it easier to wire.

For me the electronics was the easy part, the hard part was physically mounting it.
__________________
jbinbi is offline   Reply With Quote
Old 25-07-2016, 08:18   #55
Registered User
 
Mike OReilly's Avatar

Join Date: Sep 2011
Location: Good question
Boat: Rafiki 37
Posts: 3,684
Re: Mounting solar panels

Our setup includes four panels (400 watts total), wired in parallel, all going to one controller. It's the controller that came with our windmill (Spreco Silentwind, 400 watt). I don't even know what kind of controller it is, but so far seems to manage things just fine.


Why go fast, when you can go slow
__________________
Why go fast, when you can go slow.
Mike OReilly is offline   Reply With Quote
Old 02-08-2016, 11:56   #56
Registered User

Join Date: Aug 2010
Posts: 111
Re: Mounting solar panels

Thread drift:

Your 400W controller from Spreco might have been replaced with this version:

Shenzhen Huaxiao Technology Co.,Ltd.-High-tech company
__________________

__________________
Singleprop is offline   Reply With Quote
Reply

Tags
panels, solar, solar panels

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
Mounting Solar Panels oldvarnish Electrical: Batteries, Generators & Solar 21 27-04-2017 11:17
Mounting Flexible Solar Panels to Lifelines zboss Electrical: Batteries, Generators & Solar 11 31-03-2014 20:45
Suggestions for Mounting Solar Panels SV Demeter Electrical: Batteries, Generators & Solar 10 27-06-2011 09:55
Solar Panels Mounting Place Jaegerstc Multihull Sailboats 2 12-12-2009 08:06
Mounting Solar Panels on Bimini waterdog Electrical: Batteries, Generators & Solar 7 23-03-2009 06:40


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 03:45.


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.