<html><body><span style="font-family:Verdana; color:#0033cc; font-size:10pt;"><div>NEC 690.47 (A) requires the array to be grounded, not necessarily the roof. If you have bonded the rails and modules and your grounding conductor goes back to the service you should be good. 690.47 (B) allows installation of an auxiliary grounding electrode (ground rod or building steel). Not a bad idea in lightning prone areas. ;) Local AHJ may have different opinions.</div><div><br></div><div style="font-family: verdana, geneva;"><span style="color: #355a8c; font-family: "times new roman", times; font-size: 12pt;">Bruce Fiero-RMI</span></div><div style="font-family: verdana, geneva;"><span style="font-family: "times new roman", times;"><span style="font-size: 12pt;"><span style="font-size: 10pt;"><span style="font-size: 8pt;"><span style="font-size: 10pt;"><span style="font-size: 12pt;"><span style="font-family: "times new roman", times;"><span style="color: #355a8c;"><br></span></span></span></span></span></span></span></span></div><div style="font-family: verdana, geneva;"><span style="font-family: "times new roman", times;"><span style="color: #355a8c;"><img id="sigimg0" title="signature image" src="cid:sigimg0@51bec054ad1495611fddb192b56cbd96" border="0" alt=""></span></span></div><div style="font-family: verdana, geneva;"><strong><span style="font-size: 10pt;"><span style="color: #355a8c;"><br></span></span></strong></div><div style="font-family: verdana, geneva;"><span style="font-size: 8pt;"><span style="color: #425f9e;"><span style="font-family: "times new roman", times;"><span style="font-size: 10pt;"><span style="color: #355a8c;"><strong>"</strong><em><strong>Energizing the Rogue Valley"</strong></em></span></span></span></span></span></div><div style="font-family: verdana, geneva;"><span style="color: #355a8c;"><br></span></div><div style="font-family: verdana, geneva;"><span style="color: #225995; font-size: 10pt; font-weight: bold;"><span style="font-family: "times new roman", times;"><span style="color: #425f9e;"><span style="color: #355a8c;">4115 S Pacific Hwy</span></span></span></span></div><div style="font-family: verdana, geneva;"><span style="font-size: 12pt;"><span style="font-size: 12pt;"><span style="font-size: 10pt;"><span style="font-size: 10pt;"><span style="font-size: 8pt;"><span style="font-size: 10pt;"><span style="font-size: 12pt;"><strong><span style="font-size: 10pt;"><span style="color: #225995;"><span style="font-family: "times new roman", times;"><span style="color: #425f9e;"><span style="color: #355a8c;">Medford, OR 97501</span></span></span></span></span></strong></span></span></span></span></span></span></span></div><div style="font-family: verdana, geneva;"><span style="font-size: 12pt;"><span style="font-size: 12pt;"><span style="font-size: 10pt;"><span style="font-size: 10pt;"><span style="font-size: 8pt;"><span style="font-size: 10pt;"><span style="font-size: 12pt;"><strong><span style="font-size: 10pt;"><span style="font-family: "times new roman", times;"><span style="font-family: "times new roman", times;"><span style="color: #425f9e;"><span style="color: #355a8c;"><br></span></span></span></span></span></strong></span></span></span></span></span></span></span></div><div style="font-family: verdana, geneva;"><span style="font-family: "times new roman", times; color: #425f9e;"><span style="color: #355a8c;"><strong>P:</strong> 541.535.3965<br><strong>F:</strong> 541.512.0061<br><strong>E:</strong> <a title="bruce@willpowerelect.com" href="mailto:bruce@willpowerelect.com" target="_blank">bruce@willpowerelect.com</a><br><strong>W:</strong> <a title="Willpower Electric, LLC" href="http://www.willpower-electric.com" target="_blank">Willpower Electric, LLC</a> </span></span></div><div style="font-family: verdana, geneva;"><span style="font-family: "times new roman", times;"><span style="font-family: "times new roman", times;"><span style="color: #425f9e;"><span style="color: #355a8c;"><br></span></span></span></span></div><div style="font-family: verdana, geneva;"><span style="font-family: "times new roman", times; color: #425f9e;"><span style="color: #355a8c;"><strong>CCB </strong><em>191852</em><br><strong>Oregon Electrical Contractor </strong><em>C681</em><br><strong><strong>NABCEP</strong><em><strong> </strong><em><strong>Certified Solar (PV) Installer </strong>031409-38</em></em></strong><br><strong></strong></span></span></div><div style="font-family: verdana, geneva;"><span style="color: #355a8c;"><span style="font-family: "times new roman", times;"><strong>DUNS</strong> <em>191470363</em> </span></span></div><div style="font-family: verdana, geneva;"><span style="font-family: "times new roman", times; color: #425f9e;"><span style="color: #355a8c;"><strong>Energy Trust of Oregon Trade Ally </strong><em>Solar (PV) Installation & Energy Efficient Commercial Lighting Programs </em></span></span></div><div style="font-family: verdana, geneva;"><span style="font-family: "times new roman", times; color: #425f9e;"><em><span style="color: #355a8c;"><br><em> </em></span></em></span></div><div style="font-family: verdana, geneva;"><span style="color: #225995;"><span style="font-family: "times new roman", times;"><em><span style="font-family: "times new roman", times;"><span style="color: #425f9e;"><span style="color: #355a8c;">**This email may contain information that is privileged, confidential, or otherwise exempt from disclosure under applicable law. If you are not the addressee, or if it appears that you have received this email in error, please advise me immediately by reply email, keep the contents confidential, and immediately delete the message and any attachments from your system. </span></span></span></em></span></span></div><div style="font-family: verdana, geneva;"> </div><div><br><br></div>
<blockquote id="replyBlockquote" webmail="1" style="border-left: 2px solid blue; margin-left: 8px; padding-left: 8px; font-size:10pt; color:black; font-family:verdana;">
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-------- Original Message --------<br>
Subject: Re: [RE-wrenches] grounding on metal roofs<br>
From: "glenn.burt@glbcc.com" <<a href="mailto:glenn.burt@glbcc.com">glenn.burt@glbcc.com</a>><br>
Date: Sun, June 17, 2018 6:17 pm<br>
To: AE Solar <<a href="mailto:autonomousenergies@gmail.com">autonomousenergies@gmail.com</a>><br>
Cc: RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org">re-wrenches@lists.re-wrenches.org</a>><br>
<br>
<div style="font-size: 10pt;"><div dir="auto">Depends on the seam profile. Same device may be used in many cases. We have Also drilled and used the standard direct burial lugs on the underside of the pans, at the wave when they hang over enough to get working space. Then a horizontal run of copper wire to connect.</div><div dir="auto"><br></div><div dir="auto">Don't be lulled into thinking that S-5 clamps are listed for grounding roof pans - they are not. They are only listed for module bonding to ground.</div><div dir="auto"><br></div><div><div dir="auto" font-size:9pt;"="">Sent from my 'smart' phone so please excuse spelling and typos.</div></div></div><div style="font-size: 10pt;"><div id="LGEmailHeader" dir="auto"><div dir="auto"><br></div><div dir="auto">------ Original message------</div><div dir="auto"><b>From: </b>AE Solar<autonomousenergies@gmail.com></autonomousenergies@gmail.com></div><div dir="auto"><b>Date: </b>Sun, Jun 17, 2018 8:46 PM</div><div dir="auto"><b>To: <!-- b--><a target="_blank" href="mailto:glenn.burt@glbcc.com">glenn.burt@glbcc.com</a>;</b></div><div dir="auto"><b><b>Cc: </b>RE-wrenches;</b></div><div dir="auto"><b><b>Subject:</b>Re: [RE-wrenches] grounding on metal roofs</b></div><div dir="auto"><b><br></b></div></div><div dir="ltr"><b>thanks glenn. and what about commercial? anyone have code references regarding grounding when doing solar on metal roofs? i thought a few years back there was a conversation on this but i can't seem to find it.</b></div><div class="gmail_extra"><b><br clear="all"><div><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr">Adam Katzman<br>Autonomous Energies<br>PO Box 1245</div><div dir="ltr">Kingston, NY 12402<br><a href="http://www.autonomousenergies.com" target="_blank">www.autonomousenergies.com</a><br><a target="_blank" href="tel:(518) 567-1468">(518) 567-1468</a><br><br></div></div></div></div></div></div></div> <br><div class="gmail_quote">On Sun, Jun 17, 2018 at 1:46 PM, <a target="_blank" href="mailto:glenn.burt@glbcc.com">glenn.burt@glbcc.com</a> <span dir="ltr"><<a href="mailto:glenn.burt@glbcc.com" target="_blank">glenn.burt@glbcc.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> <div style="margin-bottom:45px"> <div style="font-size:10pt"><div dir="auto">We use the Ilsco SGB-4 ground lug on every pan under the array for residential systems.</div><div dir="auto"><br></div><div dir="auto">-Glenn</div><div dir="auto"><br></div><div><div dir="auto"><i>Sent from my Verizon LG Smartphone</i></div></div></div><span class=""><div style="font-size:10pt"><div id="m_9062487736168510641LGEmailHeader" dir="auto"><div dir="auto"><br></div><div dir="auto">------ Original message------</div><div dir="auto"><b>From: </b>AE Solar<u></u><u></u></div><div dir="auto"><b>Date: </b>Sun, Jun 17, 2018 12:29 PM</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] grounding on metal roofs</div><div dir="auto"><br></div></div><div dir="ltr">wrenchers,<div>what methods are you all using for grounding on metal roofs? thanks</div><div>adam</div><div><br clear="all"><div><div class="m_9062487736168510641gmail_signature" data-smartmail="gmail_si gnature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr">Adam Katzman<br>Autonomous Energies<br>PO Box 1245</div><div dir="ltr">Kingston, NY 12402<br><a href="http://www.autonomousenergies.com" target="_blank">www.autonomousenergies.com</a><br><a href="tel:(518)%20567-1468" target="_blank">(518) 567-1468</a><br><br></div></div></div></div></div></div></div> </div></div> </div> </span></div></blockquote></div><br></b></div><b> </b></div><b> <hr>_______________________________________________<br>
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