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<title>Re: [RE-wrenches] AC wiring loss on micro-inverters</title>
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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>I guess all this does is effectively
reduce the number of inverters in each string, and create two strings from one (but
without additional homerun string wiring). So you need two factory pigtails
instead of one for each “original” string for the center tap j-box,
but a small price to pay for increased system efficiency. Good idea.<o:p></o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
re-wrenches-bounces@lists.re-wrenches.org
[mailto:re-wrenches-bounces@lists.re-wrenches.org] <b><span style='font-weight:
bold'>On Behalf Of </span></b>David Brearley<br>
<b><span style='font-weight:bold'>Sent:</span></b> Friday, June 11, 2010 4:04
PM<br>
<b><span style='font-weight:bold'>To:</span></b> RE-wrenches<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [RE-wrenches] AC
wiring loss on micro-inverters</span></font><o:p></o:p></p>
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<p class=MsoNormal style='margin-bottom:12.0pt'><font size=2 face=Calibri><span
style='font-size:11.0pt;font-family:Calibri'>Maybe Marv can help out here.
I’ve talked with tech support at Enphase and am under the impression that
you can center tap their branch circuits to reduce voltage drop. This technique
was used on a project that we profiled in SolarPro:<br>
<br>
<a
href="http://solarprofessional.com/article/?file=SP3_2_pg92_Projects_1&search=">http://solarprofessional.com/article/?file=SP3_2_pg92_Projects_1&search=</a><br>
<br>
David Brearley, Senior Technical Editor<br>
<i><span style='font-style:italic'>SolarPro</span></i> magazine <br>
<br>
<br>
On 6/11/10 2:50 PM, "Nick Soleil" <<a
href="nicksoleilsolar@yahoo.com">nicksoleilsolar@yahoo.com</a>> wrote:</span></font><o:p></o:p></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3 face=Arial><span
style='font-size:12.0pt;font-family:Arial'>Did you notice that in my
calculation I divided the total amperage by 2 to get the average ampacity
across the string. This seems to be the best way to deal with that.
Otherwise the loss would have been over 2.8%<br>
<br>
Nick Soleil<br>
Project Manager<br>
Advanced Alternative Energy Solutions, LLC<br>
<st1:address w:st="on"><st1:Street w:st="on">PO Box</st1:Street> 657</st1:address><br>
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<st1:PostalCode w:st="on">94953</st1:PostalCode></st1:place><br>
Cell: 707-321-2937<br>
Office: 707-789-9537<br>
Fax: 707-769-9037<br>
<br>
</span></font><font size=2 face=Tahoma><span style='font-size:11.0pt;
font-family:Tahoma'><o:p></o:p></span></font></p>
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