[RE-wrenches] Snail Trails Suniva OPT 270

[August Goers]

Interesting. We have a small commercial site installed in 2014 with Suniva
MVX255-60-5-7B1 modules exhibiting a similar if not the same issue. See
attached photos. My understanding is that the MVX series modules were
possibly manufactured on a separate line than the OPT series that Carl
shared and of course are polycrystalline rather than mono - in other words,
totally different cells. I don't know if they shared the same encapsulant
assembly materials and procedure.

Our site has 70 of these modules, and our technician estimated the 90% of
them were showing these issues. Production still seems fine, although we
don't have online monitoring so we can't tell if it's been training off or
not.

August


On Fri, Sep 18, 2020 at 11:37 AM Jay <jay.peltz at gmail.com> wrote:

> Hi Carl
>
> They look like static bubbles, not micro cracks.
> I’ve seen something like this before.
>
> The static has to do with how the EVA is laid down.
>
> Jay
>
>
>
> > On Sep 18, 2020, at 8:47 AM, Carl Adams <cadams at sunrocksolar.com> wrote:
> >
> > 
> > Swapping a failed SE optimizer this AM and noticed some strange
> marks/patterns on several of the modules.  How concerned should I be about
> this?  These are SUNIVA OPT 270s installed in December 2014.  Pictures
> attached.
> > <1B small.jpg>
> > <1C small.jpg>
> > <1A small.jpg>
> >
> > With Kind Regards
> > Carl Adams, President
> > SunRock Solar, LLC
> > 513.290.9072 (mobile)
> > 513.766.6025 (office)
> >
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