[RE-wrenches] Cell Cracks

[Luke Christy]

Ray,
I just saw the same sort of thing on 2-year-old Peimar modules. In my case, there were visible hot spots that had burned through the backsheet in several places on several modules. In some places it was just small blisters, in others there was a clearly melted area of the backsheet. The hot spots seemed clearly associated with the cells that had cracks, but they were always at the edges and corners of cells. Unfortunately I did not have access to an IR camera to view them under load in the sun. 

The manufacturer replaced them under warranty, but I’m not pleased with these modules at all.


-Luke Christy

NABCEP Certified PV Installation Professional™: 
    


Solar Gain Services, LLC
PO Box 531
Monte Vista, CO. 81144
SGSRenewables at Gmail.com <mailto:SGSRenewables at gmail.com>
719.588.3044
www.sgsrenewables.com <http://www.sgsrenewables.com/>
> 
> Hi All;
> 
> I've had a colleague ask that I post a couple pictures of what appears to be cracks in cells under the glass.  The glass is not damaged.  These are Sun Edison modules, so apparently no warranty.  Has anyone seen this, and are these possibly dangerous (hot spots) or is this nothing to worry about?  An Infrared camera did not show any issues.
> 
> As always your invaluable input is always appreciated.
> 
> Thanks,
> 
> -- 
> Ray Walters
> Remote Solar
> 303 505-8760
> 
> 
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