<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=us-ascii"><meta name=Generator content="Microsoft Word 15 (filtered medium)"><style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:"Merriweather Regular";}
@font-face
{font-family:Cambria;
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Merriweather;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#0563C1;
text-decoration:underline;}
span.EmailStyle19
{mso-style-type:personal-reply;
font-family:"Calibri",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]--></head><body lang=EN-US link="#0563C1" vlink="#954F72" style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal>I agree that the time to process warranty the module to a manufacturer’s desires is cost-prohibitive. Of all the component’s we use, this warranty almost seems the least valuable for this very reason. We stopped one case for this very reason as I didn’t want to do a PhD dissertation for a single module.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Was surprised by one manufacturer who advised us to read that bypass diodes were not an warranty defect even though the module was making half power.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Good luck, look forward to hearing how your case goes.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Scot Arey<o:p></o:p></p><p class=MsoNormal>Solar CenTex<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b>From:</b> RE-wrenches <re-wrenches-bounces@lists.re-wrenches.org> <b>On Behalf Of </b>Daniel Young via RE-wrenches<br><b>Sent:</b> Tuesday, November 22, 2022 12:34 PM<br><b>To:</b> RE-wrenches <re-wrenches@lists.re-wrenches.org><br><b>Cc:</b> Daniel Young <danny@sesre.com><br><b>Subject:</b> [RE-wrenches] Sunpower Performance Warranty Claim<o:p></o:p></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Hello Wrenches,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Any experience successfully submitting a performance warranty claim with SunPower on their solar modules? Right now, in order to Provide what they are asking for, we will likely spend more time/money testing to their satisfaction than it would cost for us to likely buy new modules and just replace the array.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Anybody have a similar experience? Or suggestions on how to deal with Sunpower?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Don’t want to bog this down with all the details but suffice to say we I-V traced the array at the string level as a sanity check (7-10 % lower than anticipated performance), and a random selection of individual modules as well and we are seeing roughly 8% lower performance than expected given the array age and listed performance warranty. (STC corrected I-V trace is 8% lower than it should be for an 8 year old solar module from SunPower)<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>With Regards,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:Merriweather'>--<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:Merriweather'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:Merriweather'>Danny Young<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:Merriweather'>NABCEP PV Installation Professional #031508-90<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:Merriweather'>Engineering Team Lead<br>Solar Energy Solutions<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Merriweather Regular"'>Lexington | Louisville | Bloomington | Cincinnati | Evansville | Indianapolis</span><span style='font-size:12.0pt;font-family:"Cambria",serif'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:Merriweather'>513-448-5176 (mobile)<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:Merriweather'>877-312-7456 (Main Office)<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:Merriweather'><a href="mailto:danny@sesre.com"><span style='color:blue'>danny@sesre.com</span></a><o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>