<div dir="ltr"><div><br></div><div>Spot-on Glenn. Ray - check <a href="http://aeesolar.com/wp-content/uploads/2017/01/2017DC-Microcracks-and-Solar-Modules.pdf">out this doc from REC</a>. Its not uncommon for there to be no measurable effect from a microcrack at first, but efficiency and safety can be significantly impacted after years of thermal cycling. Apparently the best way to detect them in the field is electroluminescence testing. Not particularly cost effective for one-off resi, but for larger systems it could make sense to test a sample. <a href="http://www.acuitypower.com/">These guys </a>provide in-field EL testing services and are rock stars.</div><div><br></div><div><br></div><div><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div style="color:rgb(0,0,0);font-family:Calibri,Helvetica,sans-serif,Helvetica,EmojiFont,"Apple Color Emoji","Segoe UI Emoji",NotoColorEmoji,"Segoe UI Symbol","Android Emoji",EmojiSymbols,Helvetica,EmojiFont,"Apple Color Emoji","Segoe UI Emoji",NotoColorEmoji,"Segoe UI Symbol","Android Emoji",EmojiSymbols,Helvetica,EmojiFont,"Apple Color Emoji","Segoe UI Emoji",NotoColorEmoji,"Segoe UI Symbol","Android Emoji",EmojiSymbols,Helvetica,EmojiFont,"Apple Color Emoji","Segoe UI Emoji",NotoColorEmoji;font-size:16px;margin-top:0px;margin-bottom:0px"><b style="font-size:10pt;font-family:ArialMT,serif,EmojiFont;color:rgb(64,64,64)">Regards, </b></div><div style="color:rgb(0,0,0);font-family:Calibri,Helvetica,sans-serif,Helvetica,EmojiFont,"Apple Color Emoji","Segoe UI Emoji",NotoColorEmoji,"Segoe UI Symbol","Android Emoji",EmojiSymbols,Helvetica,EmojiFont,"Apple Color Emoji","Segoe UI Emoji",NotoColorEmoji,"Segoe UI Symbol","Android Emoji",EmojiSymbols,Helvetica,EmojiFont,"Apple Color Emoji","Segoe UI Emoji",NotoColorEmoji,"Segoe UI Symbol","Android Emoji",EmojiSymbols,Helvetica,EmojiFont,"Apple Color Emoji","Segoe UI Emoji",NotoColorEmoji;font-size:16px;margin:0px"><br></div><div style="color:rgb(0,0,0);font-family:Calibri,Helvetica,sans-serif,Helvetica,EmojiFont,"Apple Color Emoji","Segoe UI Emoji",NotoColorEmoji,"Segoe UI Symbol","Android Emoji",EmojiSymbols,Helvetica,EmojiFont,"Apple Color Emoji","Segoe UI Emoji",NotoColorEmoji,"Segoe UI Symbol","Android Emoji",EmojiSymbols,Helvetica,EmojiFont,"Apple Color Emoji","Segoe UI Emoji",NotoColorEmoji,"Segoe UI Symbol","Android Emoji",EmojiSymbols,Helvetica,EmojiFont,"Apple Color 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style="font-family:Calibri,serif,EmojiFont"><span style="font-size:11pt"><font size="2" color="#757B81" style="font-family:ArialMT,serif,EmojiFont"><span style="font-size:10pt"></span></font></span></font></div><div style="color:rgb(0,0,0);font-family:Calibri,Helvetica,sans-serif,Helvetica,EmojiFont,"Apple Color Emoji","Segoe UI Emoji",NotoColorEmoji,"Segoe UI Symbol","Android Emoji",EmojiSymbols,Helvetica,EmojiFont,"Apple Color Emoji","Segoe UI Emoji",NotoColorEmoji,"Segoe UI Symbol","Android Emoji",EmojiSymbols,Helvetica,EmojiFont,"Apple Color Emoji","Segoe UI Emoji",NotoColorEmoji,"Segoe UI Symbol","Android Emoji",EmojiSymbols,Helvetica,EmojiFont,"Apple Color Emoji","Segoe UI Emoji",NotoColorEmoji;font-size:16px;margin:0px"><font face="Arial,sans-serif,serif,EmojiFont" size="1" color="#500050"><span style="font-size:12.78px"><font face="Arial,sans-serif,serif,EmojiFont" size="2" color="#999999"><span style="font-size:10pt">NABCEP Certified PV Installation Professional ID: 032407-66</span></font></span></font></div><div style="color:rgb(0,0,0);font-family:Calibri,Helvetica,sans-serif,Helvetica,EmojiFont,"Apple Color Emoji","Segoe UI Emoji",NotoColorEmoji,"Segoe UI Symbol","Android Emoji",EmojiSymbols,Helvetica,EmojiFont,"Apple Color Emoji","Segoe UI Emoji",NotoColorEmoji,"Segoe UI Symbol","Android Emoji",EmojiSymbols,Helvetica,EmojiFont,"Apple Color Emoji","Segoe UI Emoji",NotoColorEmoji,"Segoe UI Symbol","Android Emoji",EmojiSymbols,Helvetica,EmojiFont,"Apple Color Emoji","Segoe UI Emoji",NotoColorEmoji;font-size:16px;margin:0px"><font face="Arial,sans-serif,serif,EmojiFont" size="1" color="#500050"><span style="font-size:12.78px"><font face="Arial,sans-serif,serif,EmojiFont" size="2" color="#999999"><span style="font-size:10pt">Colorado Journeyman Electrician License No.: 600132</span></font></span></font></div></div></div></div></div></div><br><br><div class="gmail_quote"><div dir="ltr">On Tue, Aug 14, 2018 at 8:34 PM Ray <<a href="mailto:ray@solarray.com">ray@solarray.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div bgcolor="#FFFFFF">
<p>I haven't seen the actual modules, and I am not that familiar
with microfractures or snail trails either. <br>
</p>
<pre class="gmail-m_5437188912944531365moz-signature" cols="72">Ray Walters
Remote Solar
303 505-8760</pre>
<div class="gmail-m_5437188912944531365moz-cite-prefix">On 8/14/18 7:42 PM,
<a class="gmail-m_5437188912944531365moz-txt-link-abbreviated" href="mailto:glenn.burt@glbcc.com" target="_blank">glenn.burt@glbcc.com</a> wrote:<br>
</div>
<blockquote type="cite">
<div style="font-size:10pt">
<div dir="auto">Ray,</div>
<div dir="auto"><br>
</div>
<div dir="auto">Do you feel that these are different from the
microfractures or snail trails that were reported widely
across the industry a couple of years ago?</div>
<div dir="auto"><br>
</div>
<div dir="auto">Glenn</div>
<div dir="auto"><br>
</div>
<div>
<div dir="auto">Sent from my 'smart' phone
so please excuse spelling and typos.</div>
</div>
</div>
<div style="font-size:10pt">
<div id="gmail-m_5437188912944531365LGEmailHeader" dir="auto">
<div dir="auto"><br>
</div>
<div dir="auto">------ Original message------</div>
<div dir="auto"><b>From: </b>Ray<u></u><u></u></div>
<div dir="auto"><b>Date: </b>Tue, Aug 14, 2018 10:24 AM</div>
<div dir="auto"><b>To: </b>RE-wrenches;</div>
<div dir="auto"><b>Cc: </b></div>
<div dir="auto"><b>Subject:</b>[RE-wrenches] Cell Cracks</div>
<div dir="auto"><br>
</div>
</div>
<pre>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
<a href="tel:303%20505-8760" target="_blank">303 505-8760</a>
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