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Old 19-05-2017, 17:45   #1
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Solar panel defect

Howdy

I have a couple of solar panels, about 6 years old, with PV cells deteriorating. Attached photos show some of these - it is below glass surface and wasn't there on installation.

Any ideas on what has caused this & how much it will (if at all) change efficiency of panels?

I have emailed solar panel manufacturer for their opinion - awaiting reply....

Thanks in advance Brett

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Old 19-05-2017, 18:01   #2
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Re: Solar panel defect

Quote:
Originally Posted by feebs View Post
Howdy

I have a couple of solar panels, about 6 years old, with PV cells deteriorating. Attached photos show some of these - it is below glass surface and wasn't there on installation.

Any ideas on what has caused this & how much it will (if at all) change efficiency of panels?

I have emailed solar panel manufacturer for their opinion - awaiting reply....

Thanks in advance Brett

Attachment 148077

Attachment 148078
Good luck if a chinese import. If a name brand it will be interesting to see the manufacturer's response.
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Old 19-05-2017, 18:40   #3
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Re: Solar panel defect

I think that is what is referred to as "snail trails". A google search will get you more info. This thread may help (I did not read it):

https://www.solarpaneltalk.com/forum...0-snail-trails
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Old 19-05-2017, 19:30   #4
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Re: Solar panel defect

Chances are the performance is not affected. Have you tested them?
Most solar panels have at least a ten year warranty against defects, go back to the vendor and get them replaced.
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