Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 16-04-2013, 03:58   #1
Registered User
 
4fish's Avatar

Join Date: Aug 2012
Posts: 67
Which controller ...last step ...

I am getting to the final steps on configuring my solar system ....
I decided to place on my Bimini on the stern part ,where it will have the least shadows....two solbian sl112 , in a parallel configuration. In the future I may add another panel exactly the same, So having exactly two or may be three of the same panels I can choose to go for a series configuration ....if need it.
I get the recommendation from solbian to go for a WRM 15 . When I ask for the geasun GV-10 .... It looks reluctant but that is possible, I have read many good things for the GV -10 about its simplicity and work that I thinking on getting it instead of the WRM-15 . Can I get some opinions please ?
__________________

__________________
4fish is offline   Reply With Quote
Old 16-04-2013, 05:53   #2
Registered User

Join Date: Dec 2008
Location: Oriental, NC
Boat: Mainship Pilot 34
Posts: 1,429
Re: Which controller ...last step ...

Make sure that the current rating of your controller matches the maximum current expected from your potential three panels. Most controllers seem to give the current rating to the batteries.

So take the total wattage rating of the three panels, and divide by 12. That should be lsss than the current rating of the controller.

David
__________________

__________________
djmarchand is offline   Reply With Quote
Old 16-04-2013, 12:17   #3
Registered User
 
4fish's Avatar

Join Date: Aug 2012
Posts: 67
That's only if I connected in a series with one controler right?
If I connected parallel each controler will have to accomplish your equation right?
So 112 wat into 12 v give me 9'3 amps , so the GV 10 ( 10 amps) 12 v should be fine correct ?
The WRM 15 is for 15 amps....
I did read a lot of good things of the GV 10 that ...
I am doing this right ?
__________________
4fish is offline   Reply With Quote
Old 16-04-2013, 12:25   #4
Registered User
 
Jimbo485's Avatar

Join Date: May 2010
Location: some ocean down under
Boat: Kelsall Suncat 40
Posts: 1,247
30 A, because your panels are parallel, you add the currents.
__________________

Jimbo485 is offline   Reply With Quote
Old 16-04-2013, 13:00   #5
Registered User
 
4fish's Avatar

Join Date: Aug 2012
Posts: 67
Each panel one controller ...I am confuse ...
__________________
4fish is offline   Reply With Quote
Old 16-04-2013, 15:21   #6
Registered User
 
4fish's Avatar

Join Date: Aug 2012
Posts: 67
Re: Which controller ...last step ...

I thought that on a parallel circuit each panel will work with its own controller independent of each other.....even they are connected to the same battery bank. Making things simpler.
I have to go back to the basics....and do some reading.
But if please could help me on setting two solbian panels SL 112 in a parallel set up and deciding for going for one controller the genasun GV-10 or the Western Co. WR15.....each solar panel with its controller .
Thank you
__________________
4fish is offline   Reply With Quote
Old 16-04-2013, 15:31   #7
Moderator
 
sailorchic34's Avatar

Cruisers Forum Supporter

Join Date: Feb 2011
Location: SF Bay Area
Boat: Islander 34
Posts: 4,815
Re: Which controller ...last step ...

Quote:
Originally Posted by 4fish View Post
I thought that on a parallel circuit each panel will work with its own controller independent of each other.....even they are connected to the same battery bank. Making things simpler.
I have to go back to the basics....and do some reading.
But if please could help me on setting two solbian panels SL 112 in a parallel set up and deciding for going for one controller the genasun GV-10 or the Western Co. WR15.....each solar panel with its controller .
Thank you
Generally you can use one controller sized for the total peak amp load of the system. Though there is a school of thought that say to put one controller per panel for maximum output. But that is sometimes excessive for marine systems.
__________________
sailorchic34 is offline   Reply With Quote
Old 16-04-2013, 15:36   #8
Senior Cruiser
 
tartansail's Avatar

Cruisers Forum Supporter

Join Date: Oct 2010
Location: Tiverton, RI, USA
Boat: ex-Tartan 40
Posts: 614
Images: 1
Re: Which controller ...last step ...

If your panels are wired in parallel and you are using one controller per panel, the Genasun GV-10 should be fine. I have the 125 watt Solbians in parallel with a Genasun GV-10 for each panel. They are both wired to the same house bank. If you are wiring both panels in parallel to a single controller, that may be too much current for a GV-10.
__________________
- David
S/V Sapphire Tartan 40 #71

tartansail is offline   Reply With Quote
Old 16-04-2013, 15:41   #9
Senior Cruiser

Cruisers Forum Supporter

Join Date: Jul 2005
Boat: Outbound 44
Posts: 4,592
Re: Which controller ...last step ...

Is anyone finding decent discounts on the Solbian panels from the lists?
__________________
Paul L
http://svjeorgia.blogspot.com
Paul L is online now   Reply With Quote
Old 16-04-2013, 16:15   #10
Senior Cruiser
 
tartansail's Avatar

Cruisers Forum Supporter

Join Date: Oct 2010
Location: Tiverton, RI, USA
Boat: ex-Tartan 40
Posts: 614
Images: 1
Re: Which controller ...last step ...

Quote:
Originally Posted by Paul L View Post
Is anyone finding decent discounts on the Solbian panels from the lists?
I'm not sure what qualifies as decent, but I got a bit of a discount. I'm not sure if it was a deferred boat show discount -- we met at Newport -- or just catching the seller on a good day (and asking). It seemed as though he was trying to put together larger orders on the larger high output panels in order to get a better price.
__________________
- David
S/V Sapphire Tartan 40 #71

tartansail is offline   Reply With Quote
Old 16-04-2013, 16:15   #11
Registered User
 
4fish's Avatar

Join Date: Aug 2012
Posts: 67
Re: Which controller ...last step ...

Ok then I think my initial idea will be the same set up than Tartan sail, but using the smaller panels SL112 with the GV10 .

... I donīt see any "votes" to the WR15

Thank you.
Everything looks correct now.
__________________
4fish is offline   Reply With Quote
Old 16-04-2013, 20:20   #12
Registered User
 
Jimbo485's Avatar

Join Date: May 2010
Location: some ocean down under
Boat: Kelsall Suncat 40
Posts: 1,247
Why not just one 30 A controller?

Why a controller for each panel?
__________________

Jimbo485 is offline   Reply With Quote
Old 17-04-2013, 02:36   #13
Registered User
 
4fish's Avatar

Join Date: Aug 2012
Posts: 67
Re: Which controller ...last step ...

Good question, and simple.
Well while I was reading is what I thought was necessary ....and I was seeing the circuit totally independent one from the other.....May be that is not even considered a parallel circuit since the three different circuits (if I get three panels ) have only in common the battery bank. I believe Tartansail has this set up two independent 125 panels with two GV10 controllers. Each circuit conected independentlly to the battery bank , correct?
Maybe the reason is that the controllers can work better in each panel independently....like for example in a shadow in one panel and not the other, but not sure what is better.....Could someone help clarifying this....
__________________
4fish is offline   Reply With Quote
Old 17-04-2013, 03:00   #14
Nearly an old salt
 
goboatingnow's Avatar

Cruisers Forum Supporter

Join Date: Jun 2009
Posts: 13,649
Images: 3
If you can afford it , the best technical solution is always a separate panel connected to its own mppt controller. That way each panel will operate ( if needed) at its Vmp and Vmp will vary as panels experience differing light levels.

At the moment few do this due to cost and extra wiring.

Note there is no advantage to separate controllers if all you are using are PWM ( ie bang bang) regulators ( charge controllers)

Dave
__________________
Check out my new blog on smart boat technology, networking and gadgets for the connected sailor! - http://smartboats.tumblr.com
goboatingnow is offline   Reply With Quote
Old 17-04-2013, 03:30   #15
Registered User
 
4fish's Avatar

Join Date: Aug 2012
Posts: 67
Re: Which controller ...last step ...

I understood that MPPT charge controllers is a must nowadays. Affordability is a big issue, but looking all the costs....

Thank you.
__________________

__________________
4fish is offline   Reply With Quote
Reply

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




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 02:56.


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.