<div dir="ltr">Thanks Dana,<div><br></div><div>Normally I do a piered system for these, but I&#39;ve got a project with a ground source heat pump loop at unknown depth under the array field.  I&#39;m trying to avoid a puncture.</div><div><br></div><div>Thanks!</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Dec 29, 2021 at 8:58 AM Dana Orzel &lt;<a href="mailto:dana@solarwork.com">dana@solarwork.com</a>&gt; wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div lang="EN-US" style="overflow-wrap: break-word;"><div class="gmail-m_7567602355377896582WordSection1"><p class="MsoNormal"><span style="font-size:14pt;font-family:&quot;Century Gothic&quot;,sans-serif">I have used Snapn\u2019Rack\u2019s system with grade beams. It uses a sched 40 - 1½\u201d iron/galv pipe to achieve 90 MPH 3 sec micro burst rating for uplift. Please verify if this is still available from SnR.  I am pretty sure that we needed 18# of concrete/sqft of PV module. I would have your structural engineer verify this or whatever your local code calls for.<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:14pt;font-family:&quot;Century Gothic&quot;,sans-serif">It\u2019s a good system as long as you do not have frost heaving of the ground. I am not sure that I would do this in snow country unless your engineer could guaranty that there is a way to eliminate the frost heave. <u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:14pt;font-family:&quot;Century Gothic&quot;,sans-serif"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:14pt;font-family:&quot;Century Gothic&quot;,sans-serif">And if you are going to have to do that much ground prep why not use a pier or footing system?<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:14pt;font-family:&quot;Century Gothic&quot;,sans-serif"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:14pt;font-family:&quot;Century Gothic&quot;,sans-serif"><u></u> <u></u></span></p><div style="border-top:none;border-right:none;border-left:none;border-bottom:1.5pt solid windowtext;padding:0in 0in 1pt"><p class="MsoNormal" style="border:none;padding:0in"><span style="font-size:14pt;font-family:&quot;Century Gothic&quot;,sans-serif"><u></u> <u></u></span></p></div><p class="MsoNormal"><span style="font-family:&quot;Century Gothic&quot;,sans-serif;color:rgb(0,32,96)"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:14pt;font-family:&quot;Century Gothic&quot;,sans-serif">Dana Orzel                              Great Solar Works, Inc. <u></u><u></u></span></p><p class="MsoNormal"><b><span style="font-size:14pt;font-family:&quot;Century Gothic&quot;,sans-serif">C - 208.721.7003                       <a href="mailto:dana@solarwork.com" target="_blank">dana@solarwork.com</a><u></u><u></u></span></b></p><p class="MsoNormal"><span style="font-size:14pt;font-family:&quot;Century Gothic&quot;,sans-serif">Idaho Contractor - # 028765         Idaho PV # 028374<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:14pt;font-family:&quot;Century Gothic&quot;,sans-serif">NABCEP # 051112-136                       <a href="http://www.greatsolarworks.com" target="_blank">www.greatsolarworks.com</a><u></u><u></u></span></p><p class="MsoNormal"><u><span style="font-size:14pt;font-family:&quot;Century Gothic&quot;,sans-serif">&quot;Responsible Technologies for Responsible People since 1988&quot;  </span></u><u><span style="font-size:14pt;font-family:&quot;Century Gothic&quot;,sans-serif"><u></u><u></u></span></u></p><p class="MsoNormal" style="background:white"><b><span style="font-size:18pt;font-family:Webdings;color:green">P</span></b><span style="font-family:Helvetica,sans-serif;color:navy"> </span><span style="font-size:10pt;font-family:Arial,sans-serif;color:green">Please consider the environment before printing this email.</span><span style="font-family:Helvetica,sans-serif;color:black"><u></u><u></u></span></p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal"><span style="font-size:14pt;font-family:&quot;Century Gothic&quot;,sans-serif"><u></u> <u></u></span></p><div style="border-right:none;border-bottom:none;border-left:none;border-top:1pt solid rgb(225,225,225);padding:3pt 0in 0in"><p class="MsoNormal"><b>From:</b> RE-wrenches &lt;<a href="mailto:re-wrenches-bounces@lists.re-wrenches.org" target="_blank">re-wrenches-bounces@lists.re-wrenches.org</a>&gt; <b>On Behalf Of </b>Mac Lewis<br><b>Sent:</b> Tuesday, December 28, 2021 4:31 PM<br><b>To:</b> RE-wrenches &lt;<a href="mailto:re-wrenches@lists.re-wrenches.org" target="_blank">re-wrenches@lists.re-wrenches.org</a>&gt;<br><b>Subject:</b> [RE-wrenches] ballasted ground mounts residential scale<u></u><u></u></p></div><p class="MsoNormal"><u></u> <u></u></p><div><p class="MsoNormal">Hello Wrenches,<u></u><u></u></p><div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal">Can anyone recommend a ballasted ground mount solution that is offered on a residential scale?  Below 10kW typically.<u></u><u></u></p></div><div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal">Thanks in advance!<br clear="all"><u></u><u></u></p><div><p class="MsoNormal"><u></u> <u></u></p></div><p class="MsoNormal">-- <u></u><u></u></p><div><div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal"><u></u> <u></u></p></div><p class="MsoNormal" style="margin-bottom:12pt">Mac Lewis<b><span style="font-size:12pt;font-family:Arial,sans-serif;color:rgb(255,153,0)"><u></u><u></u></span></b></p><p><span style="font-size:12pt;font-family:&quot;Times New Roman&quot;,serif;color:rgb(48,90,120)">&quot;Yo solo sé que no sé nada.&quot; </span><b><span style="font-size:12pt;font-family:&quot;Times New Roman&quot;,serif;color:rgb(104,104,104)">-Sócrates</span></b><b><span style="font-size:12pt;font-family:Arial,sans-serif;color:rgb(255,153,0)"><u></u><u></u></span></b></p></div></div></div></div></div>_______________________________________________<br>
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</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature"><div><br></div><div><font color="#305A78" face="&#39;times new roman&#39;, serif"><br></font></div><div><br></div>Mac Lewis<br><br><span style="font-family:&quot;Times New Roman&quot;;font-size:medium;color:rgb(255,153,0)"><b><font face="Arial, Helvetica, sans-serif" size="3"><p align="left"><font color="#000000" face="Verdana, Arial, Helvetica, sans-serif"><span style="font-size:small"><span style="font-family:arial;font-weight:normal;color:rgb(48,90,120)"><font face="&#39;times new roman&#39;, serif">&quot;Yo solo sé que no sé nada.&quot; </font><span style="font-weight:700;color:rgb(104,104,104)"><font face="&#39;times new roman&#39;, serif">-Sócrates</font></span></span></span></font></p></font></b></span></div>