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</o:shapelayout></xml><![endif]--></head><body bgcolor=white lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D'>To all,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D'> This is a project that I did back in 2009 and hearing of this made me wonder. As you can see below in the spring shot it’s all good. I should point out that this is a DAT and I have had a failure of a single module but none on the M190’s.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D'>Best of luck,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D'>Christopher Schaefer<o:p></o:p></span></p><p class=MsoNormal><span style='color:windowtext'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:windowtext'> <o:p></o:p></span></p><p class=MsoNormal><span style='color:windowtext'><img width=742 height=506 id="Picture_x0020_1" src="cid:image003.png@01D15F7F.88DE2440" alt="cid:EB9951D7-9416-4A0B-9348-0AB528A6FD7F"></span><span style='color:windowtext'><o:p></o:p></span></p><p class=MsoNormal><span style='color:windowtext'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:windowtext'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'> RE-wrenches [mailto:re-wrenches-bounces@lists.re-wrenches.org] <b>On Behalf Of </b>Louis Woofenden<br><b>Sent:</b> Wednesday, 03 February, 2016 11:48<br><b>To:</b> RE-wrenches<br><b>Subject:</b> Re: [RE-wrenches] Enphase M190 current limiting<o:p></o:p></span></p></div></div><p class=MsoNormal><br>Hi Rebecca and all,<br><br>We're experiencing the same thing on several M190 sites, though not all. Interestingly, M190s that have been replaced are not having the same problem.<br><br>According to Enphase, it is a software problem. My understanding is that they are rolling back software updates on affected devices to solve the problem, but I'm not clear on the exact order that will happen. <br><br>Not sure if being a squeaky wheel on particular systems is going to hurt or help. Kind of disappointing that they didn't properly beta test any software updates on all types of microinverter devices before rolling them out to all customers. Seems like that would be common sense.<br><br>Best,<br>Louis<br><br><span style='font-size:9.5pt;font-family:"Arial","sans-serif";color:#500050;background:white'>--<span class=apple-converted-space> </span></span><o:p></o:p></p><div><div><p class=MsoNormal style='background:white'><span style='font-size:9.5pt;font-family:"Arial","sans-serif"'>Louis Woofenden<br>Engineering Director<br>Net Zero Solar, LLC<br>101. W. 5th St., Tucson, AZ 85705<br>Arizona ROC #248710, 259756, 259521<span class=apple-converted-space> </span><br><br>Phone:<span class=apple-converted-space> </span><a href="tel:520.207.4053" target="_blank"><span style='color:#1155CC'>520.207.4053</span></a><span class=apple-converted-space> </span>Ex. 2<o:p></o:p></span></p><div><p class=MsoNormal style='background:white'><span style='font-size:9.5pt;font-family:"Arial","sans-serif"'>Cell:<span class=apple-converted-space> </span><a href="tel:520.237.5040" target="_blank"><span style='color:#1155CC'>520.237.5040</span></a><br>Fax:<span class=apple-converted-space> </span><a href="tel:520.203.7230" target="_blank"><span style='color:#1155CC'>520.203.7230</span></a><br><br>NABCEP Certified PV Installation Professional™<br>NABCEP Certified Solar Heating Installer™<o:p></o:p></span></p></div></div></div><p class=MsoNormal><br><br>Luke Christy wrote:<br><br><o:p></o:p></p><div><p class=MsoNormal>Hi Rebecca,<o:p></o:p></p></div><div id=AppleMailSignature><p class=MsoNormal>After you posted this I looked at the power production history for several of our Enphase sites with M190s, and the same thing is happening. Inverter output is being clipped at 140W across the board.<o:p></o:p></p></div><div id=AppleMailSignature><p class=MsoNormal>This seems like a pretty big deal in terms of potential lost production for a lot of users.<o:p></o:p></p></div><div id=AppleMailSignature><p class=MsoNormal><o:p> </o:p></p></div><div id=AppleMailSignature><p class=MsoNormal>Have you brought this up with Enphase? <o:p></o:p></p></div><div id=AppleMailSignature><p class=MsoNormal><o:p> </o:p></p></div><div id=AppleMailSignature><p class=MsoNormal>-Luke <o:p></o:p></p></div><div id=AppleMailSignature><p class=MsoNormal><o:p> </o:p></p></div><div id=AppleMailSignature><p class=MsoNormal><br><br>NABCEP Certified PV Installation Professional™: Certification #031409-25 <br>NABCEP Certified Solar Heating Installer™: Certification #ST032611-03 <br>CoSEIA Certified PV Installer <br> <br>Solar Gain Services, LLC<br>PO Box 531<br>Monte Vista, CO 81144<br><a href="mailto:sgsrenewables@gmail.com">sgsrenewables@gmail.com</a><br>719.588.3044<br><a href="http://www.sgsrenewables.com/">www.sgsrenewables.com</a><o:p></o:p></p></div><div><p class=MsoNormal style='margin-bottom:12.0pt'><br>On Jan 31, 2016, at 21:08, Rebecca Lundberg <<a href="mailto:rebecca.lundberg@powerfullygreen.com">rebecca.lundberg@powerfullygreen.com</a>> wrote:<o:p></o:p></p></div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><div><div><div><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>I just noticed that several of our sites with Enphase M190s are current limiting at 140 watts. These units used to clip at 199 watts so I feel like our customers just lost a potential 30% of their power output. It appears to be related to a firmware update 520-00008-r01-v01.08.00. We've got one site with just 8 units, 1 of them got this firmware update back in September and has been limiting to 140w since then, 5 of them got this update in late January and have been limiting to 140w since then, the other two are at a previous firmware version and are performing as we would expect up to 199w. Have any of you noticed this same thing? Do you know what this is about? It doesn't feel very fair on the user end of things.</span><span style='font-family:"Arial","sans-serif"'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Sincerely,</span><span style='font-family:"Arial","sans-serif"'><o:p></o:p></span></p></div><p class=MsoNormal><span style='font-size:10.0pt'><br>Rebecca Lundberg<br>Powerfully Gree<o:p></o:p></span></p><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif"'> n<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Minnesota<o:p></o:p></span></p></div><div><div><p class=MsoNormal><o:p> </o:p></p></div></div></div></div></blockquote><pre>_______________________________________________<o:p></o:p></pre><pre>List sponsored by Redwood Alliance<o:p></o:p></pre><pre><o:p> </o:p></pre><pre>List Address: <a href="mailto:RE-wrenches@lists.re-wrenches.org">RE-wrenches@lists.re-wrenches.org</a><o:p></o:p></pre><pre><o:p> </o:p></pre><pre>Change listserver email address & settings:<o:p></o:p></pre><pre><a href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a><o:p></o:p></pre><pre><o:p> </o:p></pre><pre>List-Archive: <a href="http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html">http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html</a><o:p></o:p></pre><pre><o:p> </o:p></pre><pre>List rules & etiquette:<o:p></o:p></pre><pre><a href="http://www.re-wrenches.org/etiquette.htm">www.re-wrenches.org/etiquette.htm</a><o:p></o:p></pre><pre><o:p> </o:p></pre><pre>Check out or update participant bios:<o:p></o:p></pre><pre><a href="http://www.members.re-wrenches.org">www.members.re-wrenches.org</a><o:p></o:p></pre><pre><o:p> </o:p></pre><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>-- <br><span style='font-size:9.5pt;font-family:"Arial","sans-serif";color:#500050;background:white'>--<span class=apple-converted-space> </span></span><o:p></o:p></p><div><div><p class=MsoNormal style='background:white'><span style='font-size:9.5pt;font-family:"Arial","sans-serif"'>Louis Woofenden<br>Engineering Director<br>Net Zero Solar, LLC<br>101. W. 5th St., Tucson, AZ 85705<br>Arizona ROC #248710, 259756, 259521<span class=apple-converted-space> </span><br><br>Phone:<span class=apple-converted-space> </span><a href="tel:520.207.4053" target="_blank"><span style='color:#1155CC'>520.207.4053</span></a><span class=apple-converted-space> </span>Ex. 2<o:p></o:p></span></p><div><p class=MsoNormal style='background:white'><span style='font-size:9.5pt;font-family:"Arial","sans-serif"'>Cell:<span class=apple-converted-space> </span><a href="tel:520.237.5040" target="_blank"><span style='color:#1155CC'>520.237.5040</span></a><br>Fax:<span class=apple-converted-space> </span><a href="tel:520.203.7230" target="_blank"><span style='color:#1155CC'>520.203.7230</span></a><br><br>NABCEP Certified PV Installation Professional™<br>NABCEP Certified Solar Heating Installer™<o:p></o:p></span></p></div></div></div><p class=MsoNormal> <o:p></o:p></p></div></div></body></html>