New Solar panels - SailNet Community
 
LinkBack Thread Tools
post #1 of 10 Old 08-02-2012 Thread Starter
Junior Member
 
Join Date: Feb 2012
Location: Vancouer, Washington
Posts: 19
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Send a message via AIM to jkzdad Send a message via Yahoo to jkzdad
New Solar panels

I am getting ready to mount 4 Kyocera 140W panels above my bimini. Any suggestions on a compatible charge controller to work with this system? Also wondering whether to stay with wet cell batteries or switch to AGM?
jkzdad is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #2 of 10 Old 08-02-2012
Senior Cruiser
 
sea_hunter's Avatar
 
Join Date: Jul 2000
Posts: 512
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 16
 
Stay with flooded batteries as they offer more AmpHours per volume, don't cheap out on the charge controller and purchase an MPPT that works with your voltage. I and a number of other people like the Outback; it's a bit pricey but does an awesome job of collecting all available energy and storing it to your batteries.
sea_hunter is offline  
Quote Quick Reply Share with Facebook
post #3 of 10 Old 08-02-2012
TQA
Bombay Explorer 44
 
TQA's Avatar
 
Join Date: Apr 2009
Posts: 2,937
Thanks: 0
Thanked 79 Times in 75 Posts
Rep Power: 7
 
Re: New Solar panels

Check out the Blue Sky Solar Boost 3024iL

I would stay with the flooded cell batteries.
TQA is offline  
Quote Quick Reply Share with Facebook
post #4 of 10 Old 08-02-2012 Thread Starter
Junior Member
 
Join Date: Feb 2012
Location: Vancouer, Washington
Posts: 19
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Send a message via AIM to jkzdad Send a message via Yahoo to jkzdad
Re: New Solar panels

thank you for the help. I am convinced that flooded batteries will be best to stay with.
jkzdad is offline  
Quote Quick Reply Share with Facebook
post #5 of 10 Old 08-02-2012 Thread Starter
Junior Member
 
Join Date: Feb 2012
Location: Vancouer, Washington
Posts: 19
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Send a message via AIM to jkzdad Send a message via Yahoo to jkzdad
Re: New Solar panels

Sea Hunter, what is the importance with MPPT on the charge controller? Company selling me the panels telling me MPPT is an overkill and not really needed for this type os system. thanks
jkzdad is offline  
Quote Quick Reply Share with Facebook
post #6 of 10 Old 08-02-2012
Senior Member
 
Join Date: Jan 2008
Posts: 444
Thanks: 4
Thanked 8 Times in 8 Posts
Rep Power: 8
 
Re: New Solar panels

Quote:
Originally Posted by jkzdad View Post
Sea Hunter, what is the importance with MPPT on the charge controller? Company selling me the panels telling me MPPT is an overkill and not really needed for this type os system. thanks
MPPT will only give a small gain over non MPPT regulators. The advice you have been given is sound for domestic installations where there is lots of room for extra panels. More panels are more cost effective than a MPPT regulator until you get to large arrays. However on a boat there is often no room for more panels so the break even point becomes much lower. With over 500w of solar and probably a large and expensive battery bank a sofisticated and adjustable regulator is needed and most of these are MPPT.
At this level (500w plus) Outback is the best choice.
noelex77 is offline  
Quote Quick Reply Share with Facebook
post #7 of 10 Old 08-02-2012 Thread Starter
Junior Member
 
Join Date: Feb 2012
Location: Vancouer, Washington
Posts: 19
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Send a message via AIM to jkzdad Send a message via Yahoo to jkzdad
Re: New Solar panels

Thanks for that input. I just spoke with Outback about their charge control system. I will be using 4 house batteries and 1 engine start battery and they are suggesting a separate charging system for the engine start battery. Is that type of separate charging application pretty common?
jkzdad is offline  
Quote Quick Reply Share with Facebook
post #8 of 10 Old 08-03-2012
Senior Member
 
mitiempo's Avatar
 
Join Date: Sep 2008
Location: Victoria B.C. Canada
Posts: 7,509
Thanks: 0
Thanked 96 Times in 87 Posts
Rep Power: 8
   
Re: New Solar panels

Probably the best way to keep both house and start batteries charged is with an Echo Charge or ACR. Route all charging sources direct to the house bank - where it is needed most - and either of the above devices will automatically keep the start battery charged.

Battery Chargers | Auxiliary Battery Charger | Xantrex

SI-Series Automatic Charging Relay*—*Blue Sea Systems

Brian
Living aboard in Victoria Harbour
mitiempo is offline  
Quote Quick Reply Share with Facebook
post #9 of 10 Old 08-03-2012
Senior Member
 
Join Date: Jan 2008
Posts: 444
Thanks: 4
Thanked 8 Times in 8 Posts
Rep Power: 8
 
Re: New Solar panels

Quote:
Originally Posted by jkzdad View Post
Thanks for that input. I just spoke with Outback about their charge control system. I will be using 4 house batteries and 1 engine start battery and they are suggesting a separate charging system for the engine start battery. Is that type of separate charging application pretty common?
The start battery normally stays close to fully charged without any input from solar. Starting the engine uses very little power and this is replaced even with a short engine run.
For this reason most people only connect their solar system to the house batteries.

This is what I have done. Occasionally I connect the solar to the engine start battery to provide an equalisation charge. I do this manually by flicking the "combine switch" (which is normally used as an emergancy to connect the house bank for starting).
This keep things simple. You can automate the charging with a VSR or Echocharge but it's normally not worth it and the VSR will result in an overcharged engine battery. Even with an Echocharge the start battery will benefit from an occasional equalisation charge which must be done manually.

Last edited by noelex77; 08-03-2012 at 03:44 AM.
noelex77 is offline  
Quote Quick Reply Share with Facebook
post #10 of 10 Old 08-03-2012
Reward for lost Kraken!
 
hellosailor's Avatar
 
Join Date: Apr 2006
Posts: 11,543
Thanks: 6
Thanked 137 Times in 134 Posts
Rep Power: 11
   
Re: New Solar panels

And I think I'd tell you to consider GEL batteries. Higher acceptance rates compared to wet lead. More deep discharge cycles compared to lead. And the MPPT controller should be able to be set for them with no problem.

The catch is that your engine and shore power chargers need to be set for gels as well, because cooking them will kill them. But if you ask some of the battery companies about the number of charge cycles for their gel batteries versus their wet batteries, you may be surprised.
hellosailor is offline  
Quote Quick Reply 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:
OR

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
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
Solar deck instead of solar panels ulferlingsson Gear & Maintenance 34 01-31-2013 05:03 AM
Anyone bought solar panels from Sun Solar? justonemoreproject Electrical Systems 1 04-18-2012 05:08 PM
Where did you put solar panels? stevemac00 Pacific Seacraft 27 04-08-2011 09:00 PM
More on solar panels. SVDistantStar Gear & Maintenance 47 04-04-2008 07:58 AM

Posting Rules  
You may post new threads
You may 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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome