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<DIV><FONT color=#008000 size=4>When net metering became available in Va. in
2006, we wanted to upgrade and enlarge a Y2K battery backup system using
the Trace Power Panel</FONT></DIV>
<DIV><FONT color=#008000 size=4>and Kohler 8.5 RMY generator. So we became one
of the first on the East Coast, judging from serial number, to use the
XW6048.</FONT></DIV>
<DIV><FONT color=#008000 size=4>A couple of the early units needed control board
replacement last year, under warrantee and reimbursed, but no issues other than
that, after about a dozen systems. We typically do a 3-3.5 KW array on a single
CC, ansd single 6048, and use the Midnite E-Panel, with 4 8A8D Deka
AGM's.</FONT></DIV>
<DIV><FONT color=#008000 size=4>Performance runs about 16-18 KWH's per day peak,
with output in Va. conditions, of 10-12 KWH/ d , 1 yr + annual
average. </FONT></DIV>
<DIV><FONT color=#008000 size=4>It's what I used on my own house. Rarely need
generator backup. </FONT></DIV>
<DIV><FONT color=#008000 size=4>I have the Midnite Classic CC on my system, and
I'm pleased with that also.</FONT></DIV>
<DIV><FONT color=#008000 size=4></FONT> </DIV>
<DIV><FONT color=#008000 size=4>Just ordered another system from Sunwize
yesterday.</FONT></DIV>
<DIV><FONT color=#008000 size=4></FONT> </DIV>
<DIV><FONT color=#008000 size=4>Ken Schaal</FONT></DIV>
<DIV><FONT color=#008000 size=4>CommonWealth Solar, LLC</FONT></DIV>
<DIV><FONT color=#008000 size=4>Ashland Va.</FONT></DIV>
<BLOCKQUOTE
style="BORDER-LEFT: #008000 2px solid; PADDING-LEFT: 5px; PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color: black"><B>From:</B>
<A title=glenn.burt@glbcc.com href="mailto:glenn.burt@glbcc.com">Glenn
Burt</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=Allan@positiveenergysolar.com
href="mailto:Allan@positiveenergysolar.com">Allan@positiveenergysolar.com</A>
; <A title=re-wrenches@lists.re-wrenches.org
href="mailto:re-wrenches@lists.re-wrenches.org">'RE-wrenches'</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Thursday, August 23, 2012 9:55
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [RE-wrenches] Sunny Island
vs. XW system - advice requested</DIV>
<DIV><BR></DIV>
<DIV class=WordSection1>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">I
have experience with the SI/SB designs, and can warn you that they typically
need a boatload of additional switchgear to support a good robust design. That
being said they work great together, handle battery charging like no other and
we rarely get calls on them.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">I
have seen the XW system, and although have no firsthand experience with it,
was walked through one by another trusted wrench, and his experience with both
systems may have swayed me – almost all the wall of additional switchgear has
been incorporated into the XW…<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">My
next GTWB system will be an XW system.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">YMMV,<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">Glenn<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></P>
<DIV>
<DIV
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<P class=MsoNormal><B><SPAN
style="FONT-FAMILY: 'Tahoma','sans-serif'; COLOR: windowtext; FONT-SIZE: 10pt">From:</SPAN></B><SPAN
style="FONT-FAMILY: 'Tahoma','sans-serif'; COLOR: windowtext; FONT-SIZE: 10pt">
re-wrenches-bounces@lists.re-wrenches.org
[mailto:re-wrenches-bounces@lists.re-wrenches.org] <B>On Behalf Of </B>Allan
Sindelar<BR><B>Sent:</B> Thursday, August 23, 2012 10:39 AM<BR><B>To:</B>
RE-wrenches<BR><B>Subject:</B> [RE-wrenches] Sunny Island vs. XW system -
advice requested<o:p></o:p></SPAN></P></DIV></DIV>
<P class=MsoNormal><o:p> </o:p></P>
<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: 10pt"><A href="mailto:Allan@positiveenergysolar.com"><SPAN
style="COLOR: #000099">Allan@positiveenergysolar.com</SPAN></A></SPAN><BR><SPAN
style="FONT-SIZE: 10pt">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
style="MARGIN-RIGHT: 722.25pt; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"
class=MsoNormal><o:p> </o:p></P>
<P class=MsoNormal><o:p> </o:p></P></DIV></DIV>
<P>
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