<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=utf-8"><meta name=Generator content="Microsoft Word 14 (filtered medium)"><!--[if !mso]><style>v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}
</style><![endif]--><style><!--
/* Font Definitions */
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
@font-face
{font-family:Verdana;
panose-1:2 11 6 4 3 5 4 4 2 4;}
@font-face
{font-family:Euphemia;
panose-1:2 11 5 3 4 1 2 2 1 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
p.MsoAcetate, li.MsoAcetate, div.MsoAcetate
{mso-style-priority:99;
mso-style-link:"Balloon Text Char";
margin:0in;
margin-bottom:.0001pt;
font-size:8.0pt;
font-family:"Tahoma","sans-serif";}
span.EmailStyle17
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;}
span.BalloonTextChar
{mso-style-name:"Balloon Text Char";
mso-style-priority:99;
mso-style-link:"Balloon Text";
font-family:"Tahoma","sans-serif";}
.MsoChpDefault
{mso-style-type:export-only;
font-family:"Calibri","sans-serif";}
@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=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I recently needed to combine the output of two 20kw 3-phase inverters before the PV revenue meter. Instead of investing in an expensive panel for this, I ran each inverter output to its own 30A fused outdoor disco, then combined disco outputs in the meter socket using 2-pole replacement meter lugs (Milbank #K4977). A space and money saver for sure. And there is no panel for someone to come along later and install non system-related load circuits.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><b><span style='font-size:14.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Kirk Herander<o:p></o:p></span></b></p><p class=MsoNormal><b><span style='font-size:14.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>VT Solar, LLC <o:p></o:p></span></b></p><p class=MsoNormal><b><i><span style='font-size:14.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Proven PV provider since 1991<o:p></o:p></span></i></b></p><p class=MsoNormal><b><span style='font-size:14.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><a href="www.vermontsolarnow.com"><span style='color:blue'>www.vermontsolarnow.com</span></a><o:p></o:p></span></b></p><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>dba Vermont Solar Engineering<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>NABCEP<sup>TM </sup>Inaugural Certificant<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>VT RE Incentive Program Partner<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>802.863.1202<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> RE-wrenches [mailto:re-wrenches-bounces@lists.re-wrenches.org] <b>On Behalf Of </b>Mark Westbrock<br><b>Sent:</b> Monday, July 14, 2014 8:41 AM<br><b>To:</b> RE-wrenches<br><b>Subject:</b> Re: [RE-wrenches] Combining Multiple Inverters<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>I agree that the exact placarding will depend on your AHJ, but you will certainly want one that says something like "This breaker panel is for combining solar inverter outputs. Do not add any additional breakers or make any circuit connections".<o:p></o:p></p><div><p class=MsoNormal><br clear=all><o:p></o:p></p><div><div><p class=MsoNormal>----<br><b>Mark Westbrock</b><br>Field Manager & Employee-Owner<o:p></o:p></p><div><p class=MsoNormal>NM EE98J Journeyman Electrician<br>NABCEP Certified PV Installation Professional<o:p></o:p></p><div><p class=MsoNormal style='margin-bottom:12.0pt'>NABCEP Certified PV Technical Sales<o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal><a href="http://positiveenergysolar.com/" target="_blank"><span style='border:solid windowtext 1.0pt;padding:0in;text-decoration:none'><img border=0 width=200 height=86 id="Picture_x0020_1" src="cid:image003.jpg@01CF9F49.0FBCE3A0" alt="Description: Image removed by sender."></span></a><o:p></o:p></p></div><div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Positive Energy, Inc.<o:p></o:p></p><div><p class=MsoNormal>510 S. Main St.<o:p></o:p></p></div><div><p class=MsoNormal>Las Cruces, NM 88001<br>office: 575-524-2030<br>cell: 575-640-2432<br><a href="mailto:westbrock@positiveenergysolar.com" target="_blank">mw@positiveenergysolar.com</a><br><a href="http://www.positiveenergysolar.com" target="_blank">www.positiveenergysolar.com</a><o:p></o:p></p></div></div></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal><span style='border:solid windowtext 1.0pt;padding:0in'><img border=0 width=100 height=100 id="Picture_x0020_2" src="cid:~WRD000.jpg" alt="Description: Image removed by sender."></span><o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal> <a href="http://www.nabcep.org/installer-locator?state=NM" target="_blank"><span style='border:solid windowtext 1.0pt;padding:0in;text-decoration:none'><img border=0 width=96 height=81 id="Picture_x0020_3" src="cid:image004.jpg@01CF9F49.0FBCE3A0" alt="Description: Image removed by sender."></span></a><a href="http://www.nabcep.org/installer-locator?state=NM" target="_blank"> <span style='border:solid windowtext 1.0pt;padding:0in;text-decoration:none'><img border=0 width=96 height=81 id="Picture_x0020_4" src="cid:image004.jpg@01CF9F49.0FBCE3A0" alt="Description: Image removed by sender."></span></a> <a href="http://www.solarreviews.com/installers/positive-energy-solar/" target="_blank"><span style='border:solid windowtext 1.0pt;padding:0in;text-decoration:none'><img border=0 width=100 height=100 id="Picture_x0020_5" src="cid:~WRD000.jpg" alt="Description: Image removed by sender."></span></a> <a href="http://www.bcorporation.net/" target="_blank"><span style='border:solid windowtext 1.0pt;padding:0in;text-decoration:none'><img border=0 width=100 height=100 id="Picture_x0020_6" src="cid:~WRD000.jpg" alt="Description: Image removed by sender."></span></a><o:p></o:p></p></div></div></div></div></div><p class=MsoNormal style='margin-bottom:12.0pt'><o:p> </o:p></p><div><p class=MsoNormal>On Fri, Jul 11, 2014 at 3:45 PM, Jason Szumlanski <<a href="mailto:jason@fafcosolar.com" target="_blank">jason@fafcosolar.com</a>> wrote:<o:p></o:p></p><div><div><p class=MsoNormal><span style='font-family:"Verdana","sans-serif"'>I'd spring a few extra bucks for the QO line of panels. Better bus bar, better breakers, more common breakers (availability), etc.</span><span style='font-family:"Arial","sans-serif"'>\u200b</span><span style='font-family:"Verdana","sans-serif"'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Verdana","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Verdana","sans-serif"'>To answer your question, it depends on the interconnection method. Load side? Line side? Fusible disconnect or safety switch ahead of it? And some jurisdictions have their own opinion.</span><span style='font-family:"Arial","sans-serif"'>\u200b</span><span style='font-family:"Verdana","sans-serif"'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-bottom:12.0pt'><o:p> </o:p></p><div><p class=MsoNormal>On Thu, Jul 10, 2014 at 5:08 PM, Corey Shalanski <<a href="mailto:cshalanski@joule-energy.com" target="_blank">cshalanski@joule-energy.com</a>> wrote:<o:p></o:p></p><div><p class=MsoNormal>Wrenches,<o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>We have reevaluated our approach to combining multiple inverters and have settled on a SqD HOM612L100RB as a suitable solution - it is readily available from our local supply house for ~$25 and accommodates up to three full-size 2-pole breakers.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>What - if any - labels do you install on these panels: "AC (Solar) Combiner Panel"? 705.12(D)(4)? Other recommendations?<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Thanks.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>--<o:p></o:p></p></div><div><p class=MsoNormal>Corey Shalanski<o:p></o:p></p></div><div><p class=MsoNormal>Joule Energy<o:p></o:p></p></div><div><p class=MsoNormal>New Orleans, LA<o:p></o:p></p><div><p class=MsoNormal><span style='border:solid windowtext 1.0pt;padding:0in'><img border=0 width=100 height=100 id="Picture_x0020_7" src="cid:~WRD000.jpg" alt="Description: Image removed by sender."></span><span style='font-size:7.5pt;font-family:"Euphemia","sans-serif";color:white'>\u1427</span><o:p></o:p></p></div><div><p class=MsoNormal style='margin-bottom:12.0pt'><o:p> </o:p></p><div><p class=MsoNormal>On Fri, Jun 27, 2014 at 12:41 PM, <<a href="mailto:re-wrenches-request@lists.re-wrenches.org" target="_blank">re-wrenches-request@lists.re-wrenches.org</a>> wrote:<o:p></o:p></p><p class=MsoNormal><br>Message: 6<br>Date: Fri, 27 Jun 2014 12:41:52 -0400<br>From: Jason Szumlanski <<a href="mailto:jason@fafcosolar.com" target="_blank">jason@fafcosolar.com</a>><br>To: RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" target="_blank">re-wrenches@lists.re-wrenches.org</a>><br>Subject: Re: [RE-wrenches] Combining Multiple Inverters<br>Message-ID:<br> <<a href="mailto:CAJJtG3qZAXb-UGKKoTUPPtD81ncnxv0uZiD_FRJfaP5jo4FdSQ@mail.gmail.com" target="_blank">CAJJtG3qZAXb-UGKKoTUPPtD81ncnxv0uZiD_FRJfaP5jo4FdSQ@mail.gmail.com</a>><br>Content-Type: text/plain; charset="utf-8"<br><br>Dave,<br><br>I looked at the BR24L70RP a while back. It's really a 2-space, 4 cuircuit<br>panel. I think my conclusion was you actually need a single quadplex<br>breaker with common trip center and outer breakers to get (2) 2-pole<br>breaker functionality. The quadplex breakers come in a variety of mixed<br>rating (i.e. 15A center and 20A outer breakers). They are not readily<br>stocked and not cheap. We stuck with Sq D QO load centers for that reason.<br><br>Am I missing something?<br><br><br>Jason Szumlanski<o:p></o:p></p></div></div></div></div></div></div></div><p class=MsoNormal style='margin-bottom:12.0pt'><br>_______________________________________________<br>List sponsored by Redwood Alliance<br><br>List Address: <a href="mailto:RE-wrenches@lists.re-wrenches.org">RE-wrenches@lists.re-wrenches.org</a><br><br>Change listserver email address & settings:<br><a href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org" target="_blank">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a><br><br>List-Archive: <a href="http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html" target="_blank">http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html</a><br><br>List rules & etiquette:<br><a href="http://www.re-wrenches.org/etiquette.htm" target="_blank">www.re-wrenches.org/etiquette.htm</a><br><br>Check out or update participant bios:<br><a href="http://www.members.re-wrenches.org" target="_blank">www.members.re-wrenches.org</a><br><br><o:p></o:p></p></div><p class=MsoNormal><o:p> </o:p></p></div></div></div></body></html>