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<DIV dir=ltr align=left><SPAN class=109232713-03052011><FONT color=#0000ff
size=2 face=Arial>Jason,</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=109232713-03052011><FONT color=#0000ff
size=2 face=Arial></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=109232713-03052011><FONT color=#0000ff
size=2 face=Arial>My guess is that this will work just fine.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=109232713-03052011><FONT color=#0000ff
size=2 face=Arial></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=109232713-03052011><FONT color=#0000ff
size=2 face=Arial>My comment is that according to my conversations with Enphase,
they would consider this an "off-grid" application for which they do not
warranty their product.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=109232713-03052011><FONT color=#0000ff
size=2 face=Arial></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=109232713-03052011><FONT color=#0000ff
size=2 face=Arial>If this is the case, it is something your customer should
understand upfront.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=109232713-03052011></SPAN> <BR><SPAN
lang=en-us><FONT size=2 face=Arial>Mark Frye</FONT></SPAN> <BR><SPAN
lang=en-us><FONT size=2 face=Arial>Berkeley Solar Electric Systems</FONT></SPAN>
<BR><SPAN lang=en-us><FONT size=2 face=Arial>303 Redbud Way</FONT></SPAN>
<BR><SPAN lang=en-us><FONT size=2 face=Arial>Nevada City, CA
95959</FONT></SPAN> <BR><SPAN lang=en-us><FONT size=2 face=Arial>(530)
401-8024</FONT></SPAN> <BR><SPAN lang=en-us></SPAN><A
href="http://www.berkeleysolar.com/"><SPAN lang=en-us><U><FONT color=#0000ff
size=2 face=Arial>www.berkeleysolar.com</FONT></U></SPAN></A><SPAN
lang=en-us><FONT size=2 face=Arial> </FONT></SPAN> </DIV>
<DIV> </DIV><BR>
<DIV dir=ltr lang=en-us class=OutlookMessageHeader align=left>
<HR tabIndex=-1>
<FONT size=2 face=Tahoma><B>From:</B> re-wrenches-bounces@lists.re-wrenches.org
[mailto:re-wrenches-bounces@lists.re-wrenches.org] <B>On Behalf Of </B>Jason
Szumlanski<BR><B>Sent:</B> Tuesday, May 03, 2011 6:18 AM<BR><B>To:</B>
RE-wrenches<BR><B>Subject:</B> [RE-wrenches] AC Coupling Xantrex XW Inverters to
EnphaseMicroinverters<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV class=WordSection1>
<P class=MsoNormal>I read the application note here:<o:p></o:p></P>
<P class=MsoNormal><A
href="http://www.global-download.schneider-electric.com/852577A4005D7372/all/8FA29D94B918A0FB8525781F0072FCA7/$File/ac-coupling-app-note(976-0240-01-01_rev-a).pdf">http://www.global-download.schneider-electric.com/852577A4005D7372/all/8FA29D94B918A0FB8525781F0072FCA7/$File/ac-coupling-app-note(976-0240-01-01_rev-a).pdf</A><o:p></o:p></P>
<P class=MsoNormal><o:p> </o:p></P>
<P class=MsoNormal>…and I contacted Xantrex to make sure the application note
applies to other brands of grid-tie inverters. It does according to the rep I
spoke with.<o:p></o:p></P>
<P class=MsoNormal><o:p> </o:p></P>
<P class=MsoNormal>I just wanted to find out if there is any real world
experience out there with Enphase and the XW series AC coupled. I have a
customer with three XW4024’s in single phase configuration set up as a battery
backup only now. He wants to add up to 10kW. I suggested Enphase as an AC
coupled system (mainly due to the distance to the proposed array). I’m aware of
the pitfalls noted in the application note regarding high limit shutoffs. Any
thoughts?<o:p></o:p></P>
<P class=MsoNormal><o:p> </o:p></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Cambria','serif'; COLOR: #1f497d; FONT-SIZE: 12pt">Jason
Szumlanski<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Cambria','serif'; COLOR: #1f497d; FONT-SIZE: 12pt">Fafco
Solar</SPAN><SPAN
style="FONT-FAMILY: 'Cambria','serif'; COLOR: #1f497d; FONT-SIZE: 8pt"><o:p></o:p></SPAN></P>
<P class=MsoNormal><o:p> </o:p></P></DIV></BODY></HTML>