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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='color:#1F497D'>You weren’t too specific on mounting location options but does it matter that the SI is NEMA1 rated?<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Cambria","serif";color:#1F497D'>Jim Duncan<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Cambria","serif";color:#1F497D'>North Texas Renewable Energy Inc<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Cambria","serif";color:#1F497D'><a href="http://www.ntrei.com/">www.ntrei.com</a> <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Cambria","serif";color:#1F497D'>NABCEP PV 031310-57<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Cambria","serif";color:#1F497D'>TECL-27398<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Cambria","serif";color:#1F497D'><a href="mailto:ntrei@1scom.net">ntrei@1scom.net</a> <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Cambria","serif";color:#1F497D'>817.917.0527<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;color:#1F497D'><o:p> </o:p></span></p><div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal>On Aug 23, 2012, at 7:39 AM, Allan Sindelar wrote:<o:p></o:p></p></div><p class=MsoNormal><br><br><o:p></o:p></p><div><p class=MsoNormal>Wrenches,<br>We have worked with Outback Radian and Schneider XW once or twice each for grid-tie with backup, and with Sunny Boy/Sunny Island numerous times. The SMA is certainly the most sophisticated equipment, but also the most expensive. <br><br>For a particular job coming up, the loads are not excessive, and the array will be 8kW. The main hitch is that the array will be located on a barn roof that is about 500' from the BOS and home.<br><br>I suspect that running high-voltage DC from the array to a Sunny Boy, and then feeding a pair of Sunny Islands makes the most sense. My question is this: does it make any sense to consider running two high-voltage subarrays 500' to two Schneider XW-MPPT-80 600V charge controllers, feeding two XW inverters (in order to handle the full 8kW) in a DC-coupled approach? <br><br>Is there ever a situation in which this would be a better solution than SMA?<br><br>Thank you, as always,<br>Allan<o:p></o:p></p><div><p class=MsoNormal>-- <br><b>Allan Sindelar</b><br><span style='font-size:10.0pt'><a href="mailto:Allan@positiveenergysolar.com"><span style='color:#000099'>Allan@positiveenergysolar.com</span></a></span><br><span style='font-size:10.0pt'>NABCEP Certified Photovoltaic Installer<br>NABCEP Certified Technical Sales Professional<br>New Mexico EE98J Journeyman Electrician<br>Founder and Chief Technology Officer<br><b>Positive Energy, Inc.</b><br>3209 Richards Lane (note new address)<br>Santa Fe, New Mexico 87507<br><b>505 424-1112</b><br><a href="http://www.positiveenergysolar.com/" target="_blank">www.positiveenergysolar.com</a></span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;margin-right:722.25pt;mso-margin-bottom-alt:auto'><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p></div></div><p class=MsoNormal style='margin-bottom:12.0pt'>_______________________________________________<br>List sponsored by Home Power magazine<br><br>List Address: <a href="mailto:RE-wrenches@lists.re-wrenches.org">RE-wrenches@lists.re-wrenches.org</a><br><br>Options & settings:<br><a href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a><br><br>List-Archive: <a href="http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org">http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org</a><br><br>List rules & etiquette:<br><a href="http://www.re-wrenches.org/etiquette.htm">www.re-wrenches.org/etiquette.htm</a><br><br>Check out participant bios:<br><a href="http://www.members.re-wrenches.org">www.members.re-wrenches.org</a><o:p></o:p></p></div><p class=MsoNormal><o:p> </o:p></p></div></div></body></html>