Cruisers Forum

Join CruisersForum Today

Thread Tools Rate Thread Display Modes
Old 25-11-2013, 20:07   #1
Registered User

Join Date: Feb 2009
Posts: 1,882
best way for solar

I have a fly bridge MY. with a hardtop on the fly bridge. I plan on 3 or 4 275to 300watt solar panels on the hardtop and a mppt controller. My question is.... do I mount the controller in the fly bridge console with a long wire run to the batteries in the bilge or. Make the long run from the panels to the controller and a shorter run to the batteries?
motion30 is offline   Reply With Quote
Old 25-11-2013, 20:44   #2
Registered User

Join Date: Feb 2010
Location: NW BC Canada
Boat: Dufour35 1982
Posts: 784
Images: 5
Re: best way for solar

When I did my boat, one of the experts on the site suggested I read the following blog. I did. I took the advice and for once in my life everything works as it should do. You can hire this guy for about$100 an hour if you want personal advice on your set up.

My words of wisdom, beware of shadows, even small ones knock the output way down.

anyway for what its worth. HandyBob's Blog Making off grid RV electrical systems work
NorthPacific is online now   Reply With Quote
Old 25-11-2013, 22:39   #3
Senior Cruiser
delmarrey's Avatar

Cruisers Forum Supporter

Join Date: Mar 2003
Location: Now in Blaine, WA
Boat: Modified Choate 40
Posts: 10,736
Images: 122
Re: best way for solar

Normally the higher voltage/less amperage should be the longest set of wires.

If you look at the power grid run into neighborhoods and business you'll see high power (small) wires that run into transformers, and from there heavier wires low voltage that runs into the buildings.

Amps are like water running through pipes. The more amps (water), the bigger the wire (pipe) needs to be.

So, when you kick up the amps to charge the batteries you'll want larger wires. This is why some go to 24 & 36 volt solar panels, to make longer runs on smaller wire.

Plus, you'll want to get your MPPT out of the humidity/weather but yet give it cooling space.
Faithful are the Wounds of a Friend, but the Kisses of the Enemy are Deceitful! ........
A nation of sheep breeds a government of wolves!

Unprepared boaters, end up as floatsum!.......
delmarrey is offline   Reply With Quote


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 17:04.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.