ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals

Page 1 of 2 1 2 >
Topic Options
Rate This Topic
#200941 - 04/28/11 07:04 PM Defective Panels
HotLine1 Online   content


Member
Registered: 04/03/02
Posts: 6778
Loc: Brick, NJ USA
As the solar install titled "Bigger" is commisioned and fully operational, I came upon this point of interest.

Out of the 17,000+ total panels installed for the 4.26MW total system capacity there were only 18 rejected panels.

Sure sounds like kudos are in order for the "Made in USA" panels on this job.

The rejection reasons are 'output below spec'.

_________________________
John
Top
Green Building & Alternative Energy Related:
#200944 - 04/28/11 09:34 PM Re: Defective Panels [Re: HotLine1]
sparkyinak Offline
Member
Registered: 07/08/07
Posts: 1307
Loc: Alaska
How did they test the panels? Were they passed through a test station in a controlled environment?
_________________________
"Live Awesome!" - Kevin Carosa
Top
#200949 - 04/29/11 03:10 AM Re: Defective Panels [Re: HotLine1]
frenchelectrican Offline
Member
Registered: 02/06/03
Posts: 939
Loc: Wi/ Paris France { France for ...
AK.,

I think they spotted by thru the sub colleter control panels which they will check the current drawage from each section so if the X number of amps is lower than other they will check it closer to make sure which panel is bad and they will find it.

Merci,
Marc
_________________________
Pas de problme,il marche n'est-ce pas?"(No problem, it works doesn't it?)

Top
#200950 - 04/29/11 06:25 AM Re: Defective Panels [Re: HotLine1]
HotLine1 Online   content


Member
Registered: 04/03/02
Posts: 6778
Loc: Brick, NJ USA
SparykinAk:
Marc hit the nail basically. The panels were tested at the mfg after assembly as you mentioned. During field testing, the 18 that were 'rejected' were discovered. IMHO, that is a small percentage.

The voltage output from the 18 was 'under performance spec'.

I am curious if anyone has any comments on other install fail/defect panels.
_________________________
John
Top
#200954 - 04/29/11 10:44 AM Re: Defective Panels [Re: HotLine1]
Vindiceptor Offline
Member
Registered: 03/28/11
Posts: 98
Loc: San Diego

What manufacturer and model if I may ask?

We have installed about 40k Yingli 230 modules in the past 18 months and as stated previously each combiner box is checked and each string's output (Isc and Vmp) are checked and so far all have had a voltage tolerance below 2% and a current tolerance below 3%, well below the rebate threshold.

The biggest issue we've had to date is the care and handling of the modules before, during and after their installation before turning the projects over to the owner, accidents happen and modules aren't cheap.
Top
#200958 - 04/29/11 01:11 PM Re: Defective Panels [Re: Vindiceptor]
Vindiceptor Offline
Member
Registered: 03/28/11
Posts: 98
Loc: San Diego

Nevermind, I found the project online.

It's nice to see an American company producing modules in that volume AND that owners are willing to pay the higher price for them, that is hard to find.
Top
#200963 - 04/29/11 05:23 PM Re: Defective Panels [Re: HotLine1]
HotLine1 Online   content


Member
Registered: 04/03/02
Posts: 6778
Loc: Brick, NJ USA


You may find some info on this project here at this link:

http://www.facebook.com/solarnation

_________________________
John
Top
#200964 - 04/29/11 05:24 PM Re: Defective Panels [Re: HotLine1]
HotLine1 Online   content


Member
Registered: 04/03/02
Posts: 6778
Loc: Brick, NJ USA
Manufacturer is 'Sun Solar'
_________________________
John
Top
#200973 - 04/29/11 11:52 PM Re: Defective Panels [Re: frenchelectrican]
sparkyinak Offline
Member
Registered: 07/08/07
Posts: 1307
Loc: Alaska
That's how I do it by comparing with others of a string. There's are several manufacturers who are or were churning out panels a few years ago, Europe was buying up everything they could from the US that was not nailed down
_________________________
"Live Awesome!" - Kevin Carosa
Top
#200999 - 05/02/11 07:38 AM Re: Defective Panels [Re: HotLine1]
harold endean Offline
Member
Registered: 02/16/02
Posts: 2233
Loc: Boonton, NJ
John,


Did the manufacture take the defective panels back? If not, how did they get rid of the defective panels.
Top
Page 1 of 2 1 2 >

Member Spotlight
Member Since: 12/24/00
Posts: 4259
New in the Gallery:
SE cable question
Featured:

2017 NEC and Related
2017 NEC
Now Available!

Shout Box


Who's Online
0 registered (), 87 Guests and 9 Spiders online.
Key: Admin, Global Mod, Mod
 
New in the Gallery:
SE cable question
 
Top Posters (30 Days)
Admin 47
HotLine1 43
gfretwell 19
Ruben Rocha 12
Trumpy 9
 
Newest Members
Scotto, Freecrowder, clee512, Jdscott2005, FAIZAN

ECN Electrical Forums - sponsored by Electrical Contractor Network - Electrical and Code Related Discussion for Electrical Contractors, Electricians, Inspectors, Instructors, Engineers and other related Professionals