\ufeff<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content="text/html; charset=utf-8" http-equiv=Content-Type>
<META name=GENERATOR content="MSHTML 8.00.6001.23532">
<STYLE></STYLE>
</HEAD>
<BODY bgColor=#ffffff>
<DIV><FONT size=2>Ken</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2> We have had terrific success with AC Coupling. Yes
there are some differences from Dc Coupled systems but if built properly,
customer is willing to learn how to use it and maintain it and you put the
correct relays in to shut off the string inverters if battery voltage gets to
high, great.</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2> If you have a customer that refuses to exercise the
system, not check the batteries if they are fla's and overloads it when the
power goes down then not so cool. We have customers that power shave with it,
have had backup power for days until the power came back on as they
monitored the loads and were judicious about use. Ray is right in the sense the
customer needs to learn how to use the system or they can royally screw it up (
yes we have had two do this, one learned the other not ).</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2> The Radians have been great work horses for this
application, sadly as Ray mentioned Outback has moved away from it as a primary
solution. </FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>peter giroux</FONT></DIV>
<DIV><FONT size=2>ASAE</FONT></DIV>
<DIV><FONT size=2>Atlanta</FONT></DIV>
<BLOCKQUOTE
style="BORDER-LEFT: #000000 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=Ken@commonwealthsolar.com href="mailto:Ken@commonwealthsolar.com">Ken
Schaal</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=re-wrenches@lists.re-wrenches.org
href="mailto:re-wrenches@lists.re-wrenches.org">RE-wrenches</A> ; <A
title=cwsolar1@gmail.com href="mailto:cwsolar1@gmail.com">Ken Schaal</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Wednesday, September 12, 2018 8:11
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [RE-wrenches] Any thoughts on
this approach to adding battery backup to an existing grid tie system will be
appreciated.</DIV>
<DIV><BR></DIV>
<DIV dir=auto><A
href="https://www.youtube.com/watch?v=eyhkIfS5Z-Q">https://www.youtube.com/watch?v=eyhkIfS5Z-Q</A></DIV>
<P>
<HR>
<P></P>_______________________________________________<BR>List sponsored by
Redwood Alliance<BR><BR>List Address: <A
href="mailto:RE-wrenches@lists.re-wrenches.org">RE-wrenches@lists.re-wrenches.org</A><BR><BR>Change
listserver email address & 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://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html">http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html</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 or update participant
bios:<BR>www.members.re-wrenches.org<BR><BR></BLOCKQUOTE></BODY></HTML>