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Hi Marco, boB, et al,<br>
<br>
Thermal imaging is so useful for so many diagnosis. How did you
choose the equipment you use without buying more than you use/need?
Satisfied with your current machine or would you recommend something
else?<br>
<br>
TIA,<br>
<pre class="moz-signature" cols="72">Bill Loesch
Solar 1 - Saint Louis Solar
314 631 1094</pre>
<div class="moz-cite-prefix">On 11/21/2015 11:48 PM,
<a class="moz-txt-link-abbreviated" href="mailto:boB@midnitesolar.com">boB@midnitesolar.com</a> wrote:<br>
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I have looked at several modules (not SunPower though) and I see
this much temperature<br>
variation between cells BUT I have not seen anything like your
picture, with only one cell<br>
hotter. What I have seen is hotter and cooler cells more or
less spread out<br>
semi-randomly. Not sure if your example is normal or not for
Sun Power ?<br>
<br>
Here is one example from my library of FLIR pix.<br>
A thermal imaging camera sure sheds light<br>
on many different things !<br>
boB<br>
<br>
<img alt="" src="cid:part1.09000003.00060200@charter.net"
height="240" width="320"><br>
<br>
<br>
<br>
On 11/21/2015 9:31 PM, Marco Mangelsdorf wrote:<br>
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<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Times New
Roman","serif"">Hello all,<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Times New
Roman","serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Times New
Roman","serif"">I’m seeing hot spots on
some of the SunPower modules we installed circa
2007-2010. (I’ve been a SunPower dealer since 2005.)<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Times New
Roman","serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Times New
Roman","serif"">Sometimes theses cells are
20-30 degrees C hotter than the surrounding cells and it’s
especially striking while using a Flir IR camera. Check
out the two images below.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Times New
Roman","serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Times New
Roman","serif""><img id="Picture_x0020_1"
src="cid:part2.06040802.00090805@charter.net"
alt="cid:image001.png@01D12070.CBCC60D0" height="254"
width="339"></span><span
style="font-size:12.0pt;font-family:"Times New
Roman","serif""><img id="Picture_x0020_2"
src="cid:part3.00070602.04010602@charter.net"
alt="cid:image002.png@01D12070.CBCC60D0" height="254"
width="339"></span><span
style="font-size:12.0pt;font-family:"Times New
Roman","serif""><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Times New
Roman","serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Times New
Roman","serif"">Do many of you come across
hot spotted mods? Anyone know of any papers out there on
hot spots and the hit on performance and reliability?<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Times New
Roman","serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Times New
Roman","serif"">Mahalo,<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Times New
Roman","serif"">marco<o:p></o:p></span></p>
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