Not sure where this install is located but here in the Sierra, we had a
near record snowfall and we saw a few failures, very few, but...
Bill
Feather River Solar Electric
Bill Battagin, Owner
4291 Nelson St.(shipping)
5575 Genesee Rd. (USPS, UPS)
Taylorsville, CA 95983
530.284.1925 Office/ 530.258.1641 Cell
CA Lic 874049
Solar powered since 1982
On 7/16/2023 7:10 PM, Jerry Shafer via RE-wrenches wrote:
Kent
I can assume there is no backsheet external damage, These look cell
fractures, more common on poly, they may be cause of manufacturing or
a result of overheating traces or both. Run an IR Curve test and see
if this is resulting in decreased output. Sharp had a similar issue
when they stepped up to the 200 larger modules some 20 years ago.
Fun times
On Sun, Jul 16, 2023, 2:59 PM Kent via RE-wrenches
<re-wrenches@lists.re-wrenches.org> wrote:
Found some damage to a customer's Grape CS-S-180-DJ PV modules
this morning. Unlike anything I've ever seen; so I'm hoping that
someone on this list can tell me the cause. I've put several
photos of the cells online
<https://drive.google.com/drive/folders/1nQhTqahEx4whmmWyy89tqaEEGvzkvEps?usp=sharing>
so you can inspect them. While it looks like there has been some
localized heating on the traces, there isn't any evidence of
damage on the rear of the PV modules. These are on an off grid
system charging some 12-volt batteries. Thanks.
Kent Osterberg
Blue Mountain Solar
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