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--></style></head><body bgcolor="white" lang="EN-US" link="blue" vlink="purple"><div class="WordSection1"><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Eric,</span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">NABCEP just had an annual continuing education conference in Sacramento with three days of various hands on classes including a good deal focusing on battery backup systems. It was initially only open to NABCEP certified folks but registration was eventually opened up to others. You might want to consider attending next year if they have it again. I certainly got a lot out of it. </span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">I also like SMA's Sunny Island classes up in Rocklin CA but I don't know that the instructors necessarily have 20+ years of hands on experience. You'd have to check on that.</span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Best,</span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">August</span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </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"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> <a href="mailto:re-wrenches-bounces@lists.re-wrenches.org">re-wrenches-bounces@lists.re-wrenches.org</a> [mailto:<a href="mailto:re-wrenches-bounces@lists.re-wrenches.org">re-wrenches-bounces@lists.re-wrenches.org</a>] <b>On Behalf Of </b>SunHarvest<br>
<b>Sent:</b> Friday, April 12, 2013 12:47 PM<br><b>To:</b> RE-wrenches<br><b>Subject:</b> [RE-wrenches] Advanced PV Training Recommendations</span></p></div></div><p class="MsoNormal"> </p><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Wrenchers -</span></p>
</div><div><p class="MsoNormal"> </p></div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">I am in need of hands-on advanced training for my own continuing education. I have a California C46 solar contractor's license and plenty of experience designing and installing systems. But, as you all know, there are always more details to master, code issues to be clarified, and new technologies coming down the pike. I'd like to focus on off-grid and on-grid w/BB systems over straight grid-tie.</span></p>
</div><div><p class="MsoNormal"> </p></div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">I'm looking at Solar Living Institute as that's here in NorCal, where I live.</span></p>
</div><div><p class="MsoNormal"> </p></div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Are there any training schools/programs that you guys would recommend? </span></p>
</div><div><p class="MsoNormal"> </p></div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">My main requirements are that the instructor has 20+ years of hands-on experience and that the training is hands-on and fully comprehensive. I am interested in getting NABCEP certified but I'm more concerned with getting professional, in-depth training than with qualifying for NABCEP exam requirements.</span></p>
</div><div><p class="MsoNormal"> </p></div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Thanks!</span></p></div><div><p class="MsoNormal"> </p></div><div><p class="MsoNormal">
<span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Eric</span></p></div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">SunHarvest</span></p>
</div><div><p class="MsoNormal"> </p></div><div><p class="MsoNormal"> </p></div><div><p class="MsoNormal">----- Original Message ----- </p></div><blockquote style="border:none;border-left:solid black 1.5pt;padding:0in 0in 0in 4.0pt;margin-left:3.75pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt">
<div><p class="MsoNormal" style="background:#e4e4e4"><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Arial","sans-serif""> <a href="mailto:John.Berdner@solaredge.com" title="John.Berdner@solaredge.com">John Berdner</a> </span></p>
</div><div><p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">To:</span></b><span style="font-size:10.0pt;font-family:"Arial","sans-serif""> <a href="mailto:re-wrenches@lists.re-wrenches.org" title="re-wrenches@lists.re-wrenches.org">RE-wrenches</a> </span></p>
</div><div><p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Sent:</span></b><span style="font-size:10.0pt;font-family:"Arial","sans-serif""> Thursday, April 04, 2013 11:44 AM</span></p>
</div><div><p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Subject:</span></b><span style="font-size:10.0pt;font-family:"Arial","sans-serif""> Re: [RE-wrenches] Combining conductors</span></p>
</div><div><p class="MsoNormal"> </p></div><div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Larry:</span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Yes, you can parallel conductors (there is an NEC limit on minimum size allowed to parallel).</span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">You just add the ampacity of the two conductors.</span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">To convince yourself you can also check Table 8 Conductor Properties and sum the cross sectional areas of all the parallel conductors to see the equivalency to a single larger conductor.</span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p><div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Best Regards,</span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">John Berdner</span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">General Manager, North America</span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">SolarEdge Technologies, Inc.</span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">3347 Gateway Boulevard, Fremont CA 94538 USA </span><b><i><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#c00000">(*Please note of our new address.)</span></i></b><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><br>
T: 510.498.3200, X 747</span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">M: 530.277.4894 </span></p></div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </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"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> <a href="mailto:re-wrenches-bounces@lists.re-wrenches.org">re-wrenches-bounces@lists.re-wrenches.org</a> [<a href="mailto:re-wrenches-bounces@lists.re-wrenches.org">mailto:re-wrenches-bounces@lists.re-wrenches.org</a>] <b>On Behalf Of </b>Larry Crutcher, Starlight Solar Power Systems<br>
<b>Sent:</b> Thursday, April 04, 2013 9:51 AM<br><b>To:</b> RE-wrenches<br><b>Subject:</b> [RE-wrenches] Combining conductors</span></p></div></div><p class="MsoNormal"> </p><p class="MsoNormal">Wrenches,</p><div><p class="MsoNormal">
</p></div><div><p class="MsoNormal">Here's a tough one for me to understand. I am installing 2 volt AGM batteries. There are two terminals for each battery polarity. I have some height limits so I need to use the minimum wire size. Here's my question: If I combine two identical conductors, what is the equivalent single conductor size? </p>
</div><div><p class="MsoNormal"> </p></div><div><p class="MsoNormal">I found one "rule of thumb" that says doubling like conductors creates a AWG decrease of 3. Example: two #2 will be equivalent to 2/0. Is this true?</p>
</div><div><div><div><div><div><div><div><div><p class="MsoNormal"><span style="font-size:13.5pt;font-family:"Helvetica","sans-serif";color:black"><br>Thank you,</span></p></div><div><p class="MsoNormal">
<span style="font-size:13.5pt;font-family:"Helvetica","sans-serif";color:black"><br>Larry Crutcher</span></p></div><div><p class="MsoNormal"><span style="font-size:13.5pt;font-family:"Helvetica","sans-serif";color:black">Starlight Solar Power Systems</span></p>
</div></div><div><p class="MsoNormal"><span style="font-size:13.5pt;font-family:"Helvetica","sans-serif";color:black"> </span></p></div></div></div></div><p class="MsoNormal"><span style="font-size:13.5pt;font-family:"Helvetica","sans-serif";color:black"> </span></p>
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