Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 30-10-2014, 14:44   #16
Registered User
 
autumnbreeze27's Avatar

Join Date: Apr 2012
Location: Cruising Mexico
Boat: 50' Herreshoff Ketch
Posts: 967
Re: Inexpensive 100W flexible solar panel install, part 1

It's just after 1pm and after reading the responses I went over and checked the battery monitor. It was showing positive 3-4 amps. I checked the MPPT and it said it was on absorption. So I turned off shore power and flipped on the inverter.

The battery monitor was showing -10 to -11 amps, I went up and checked the shading. Panel #1 was 50% shaded, panels 3-4 were full sun. So I adjusted the boom and got panel #1 to mostly open with 2 lines running across it, and the battery monitor is now showing -4.5 amps.

Ok just got through BSing with the guy doing our top, discussing the mounting options for the solar panels. Anyhow, since then the sun is lower, and the #1 panel is shaded pretty bad again, and we're back in the -9 amp range on the power meter.

Here's what the Live Data View tells me:
8.8 A / 113W
Array Voltage: 16.32
Array Current 6.9A
Sweep Pmax 112W
__________________

__________________
autumnbreeze27 is offline   Reply With Quote
Old 30-10-2014, 15:13   #17
Registered User

Join Date: Jul 2013
Location: San Diego, CA
Posts: 3,157
Re: Inexpensive 100W flexible solar panel install, part 1

It looks like your biggest problem is shading. Any panel with 50% shading or more may as well not even be there, the output is minimal. Hopefully you have better options for panel location.
__________________

__________________
socaldmax is offline   Reply With Quote
Old 30-10-2014, 15:20   #18
Registered User
 
Target9000's Avatar

Join Date: May 2009
Location: New Orleans LA
Boat: 74 Westsail 32
Posts: 1,379
Re: Inexpensive 100W flexible solar panel install, part 1

That sounds about right, I would expect about 4+ amps out of each 100w panel and any panel with 50% shade would put out nothing.
__________________
Let your heart tell you where to go, but let your brain tell you how to get there.

Sundowner Sails Again
Target9000 is offline   Reply With Quote
Old 30-10-2014, 15:41   #19
Registered User
 
autumnbreeze27's Avatar

Join Date: Apr 2012
Location: Cruising Mexico
Boat: 50' Herreshoff Ketch
Posts: 967
Re: Inexpensive 100W flexible solar panel install, part 1

Quote:
Originally Posted by Schrewsburyduo View Post
The picture looks great but i can't help thinking how are you going to sail with that sheet being prevented from being tight by the solar panel? I am dealing with the same issue and because I have end boom sheeting it means I can't have a bimini. I am curious if you are going to be re-doing the main sheet, or is there something else I am missing? As it looks right now in your picture, it's one gybe away from the bimini ending up in the drink.

The bimini looks great and I always thought why don't people do that -- use the solar panels as shading for the bimini itself... It looks so cool.
I will have to start another thread about the bimini/dodger, but we're extending the boom to clear the bimini.
__________________
autumnbreeze27 is offline   Reply With Quote
Old 30-10-2014, 18:06   #20
Registered User
 
4arch's Avatar

Join Date: Jan 2010
Location: Baltimore
Boat: Beneteau Oceanis 400
Posts: 232
Images: 1
Re: Inexpensive 100W flexible solar panel install, part 1

Quote:
Originally Posted by PleiadesC36 View Post
These guys that were talking about 100 amps must have been thinking about amphours???
Yes, sorry! Didn't mean to cause any confusion by not being careful with the terminology.
__________________

__________________
4arch is offline   Reply With Quote
Reply

Tags
solar

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
Renogy 100w solar panels Tide Roller Electrical: Batteries, Generators & Solar 20 31-05-2014 01:13
Pulled the trigger on 4 x 100w flexible panels and a Morningstar TS-MPPT-60 autumnbreeze27 Electrical: Batteries, Generators & Solar 62 13-05-2014 08:35
For Sale: Flexible Solar Panel senormechanico Classifieds Archive 6 03-03-2011 08:09



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 11:22.


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.