Cruisers Forum
 


Join CruisersForum Today

Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on Cruisers Forums. Advertise Here
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 03-08-2017, 14:18   #16
Registered User

Join Date: Jan 2014
Location: No fixed address
Boat: clipper Cordova 45
Posts: 29
Re: Flex Solar Panels turning cloudy

My 3 130 watt flex panels went cloudy then after polishing them they died with hot spots evident in all three. They were mounted on a rigid fiberglass Bimini top.

Although they were only 14 months old the supplier camp sales Australia based in Sydney refused to replace them.

I now have 2 x 345 watt sunpower rigid panels that deliver 50 amps in full summer sunshine.
__________________

Hickers is offline   Reply With Quote
Old 03-08-2017, 16:33   #17
Registered User

Join Date: Sep 2011
Location: Careel Bay Pittwater
Boat: Custome Open BOC 50' cutter rig
Posts: 181
Images: 3
Re: Flex Solar Panels turning cloudy

From the photos it seems like you did not remove the protective film and it now is baked on, the film is slowly disintegrating. If this is the case, not to worry your solar panel are fine, however it is most impossible to remove the protective film once it has hardened on to the solar panels.


Quote:
Originally Posted by Caliber40 View Post
All....my 2 year old flex solar panels are turning cloudy (almost milky) 2 x 100 w

The supplier (Ferris Ind) says this will not effect performance .

Best I can see I'm getting approx 5.5 A on a pretty sunny day (no shadows) at 11:00 AM EDT.

Anybody have any thoughts?

FYI I'm using flex on top of Bimini due to space limitations.

See attachedAttachment 153214Attachment 153215
__________________

kryg is offline   Reply With Quote
Old 03-08-2017, 18:18   #18
Registered User

Join Date: Feb 2015
Location: Currently in The Bahamas
Boat: Caliber 47
Posts: 168
Re: Flex Solar Panels turning cloudy

Thanks All!

I have a received a few good suggestions .

1. Panels were installed per suppliers recommendations so I don't think that's an issue.
2. Panels show extreme cloudiness as well as what looks like some coating delamination....pictures do not show condition real well!

3. Hooked up properly in paralell....agree 5A output is low....suggestions to check connections are good ones.

4 . If hooked up properly and no bad connections will probably replace and either cover up during non cruising season or remove all together. We cruise 6 months of year.
Caliber40 is offline   Reply With Quote
Old 03-08-2017, 19:05   #19
Registered User

Join Date: Apr 2017
Location: Alamosa, Colorado
Boat: S2.....7.9/26'
Posts: 379
Re: Flex Solar Panels turning cloudy

Flex panels may be the future. They are not the present. They are not highly thought of in the solar community. Longevity and output are the issues.

Rigid panels can last 40 years. Consider some used ones if budget is a concern.
softdown is offline   Reply With Quote
Old 03-08-2017, 19:14   #20
Registered User

Join Date: Jan 2017
Posts: 12,091
Re: Flex Solar Panels turning cloudy

There are situations where they're necessary.

Just budget for them only lasting 2-3 years, still lots cheaper than anything a decade ago.

I was using solar in outback Australia in the 1980's, worth their weight in gold then. But gold was cheap, mining town 8-)
john61ct is offline   Reply With Quote
Old 03-08-2017, 21:11   #21
Registered User

Join Date: Sep 2015
Location: Out of Norfolk Va
Boat: Tartan 37
Posts: 674
Re: Flex Solar Panels turning cloudy

I got two Grape flex 100watt, they also fogged up. The manufacturer says to try baking soda, it worked for a little while. I bought a another pair with the ETFE coating, looks much better we'll see. Someone can get a good deal on a couple of two year old flex panels, if you want to play around with them.
puffcard is offline   Reply With Quote
Old 04-08-2017, 06:59   #22
Registered User

Join Date: Jul 2017
Posts: 23
Re: Flex Solar Panels turning cloudy

Quote:
Originally Posted by john61ct View Post
Yes, theoretical STC ratings are simply to allow objective comparisons between panels.

No one should​ believe that they will produce close to that, even in "peak" real-world conditions (at noon in **cold** clear bright weather **at the equator** angled perpendicular to the sun).

And yes, panels are now a commodity item, only the wealthy should​ spend lots extra for better quality.

That's true, the flash test is made on STC Standard:
The electric output performance of crystalline silicon and thin film PV modules are generally measured under standard test conditions (STC), ensuring a relatively independent comparison and output evaluation of different solar PV modules.
STC is an industry-wide standard to indicate the performance of PV modules and specifies a cell temperature of 25°C and an irradiance of 1000 W/m2 with an air mass 1.5 (AM1.5) spectrum. These correspond to the irradiance and spectrum of sunlight incident on a clear day upon a sun-facing 37°-tilted surface with the sun at an angle of 41.81° above the horizon.


Please note that at each 1-degree increase, there is a decrease in power output that is typically about 0.5% plus almost all commercial panels have a +/- 5% tolerance on power, more usually we Nautical we install them horizontally (with big leaks) and finally these panels are made in PET which have a dispersion due to very high reflection and you have as a result those data.



Regarding those damage to the panel are the usual PET products (ETFE products do not have that problem) only acid rain breaks up the first layers creating a delamination.

I have been installing civilian photovoltaic for years and standard panels have the same problems. Photovoltaic manufacturers should change the test mode to be more honest.
Sailsgood is offline   Reply With Quote
Old 04-08-2017, 07:18   #23
Registered User

Join Date: Feb 2015
Location: Currently in The Bahamas
Boat: Caliber 47
Posts: 168
Re: Flex Solar Panels turning cloudy

UseFlex panels due to space restrictions.....I already have hard panels....mounted on the rails.

Thanks
__________________

Caliber40 is offline   Reply With Quote
Reply

Tags
panels, solar, solar panels

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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
Cloudy Portlights - Suggestions? hotspur Construction, Maintenance & Refit 20 05-06-2017 18:55
Flex Shot vs Flex Seal vs Mighty Sealer? Paradise1 Product or Service Reviews & Evaluations 19 25-01-2017 16:40
Cloudy vinyl tubing-watermaker jpemb7 Plumbing Systems and Fixtures 5 21-02-2013 14:48
raymarine st7000 display head " cloudy " one bug Marine Electronics 11 24-04-2012 22:23
Diesel Fuel Question (Cloudy) Panamajames Engines and Propulsion Systems 5 01-06-2010 08:17

Advertise Here


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 11:49.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
×

ShowCase vBulletin Plugins by Drive Thru Online, Inc.