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<DIV><FONT face=Arial size=2>Hi Allan,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I have an SMA 1100U in stock that I did not
use on a system once I found out the 240VAC was really 208VAC. It
may have been hung on the wall but I don't think I ever
turned it on. It would work with the 12 modules great and would be
marginal in hot weather for the 10 modules. Let me know if you are
interested. I am sure we could work out something.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Thanks,</FONT></DIV>
<DIV><FONT face=Arial size=2>Cary</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Cary Lane<BR>Energy Concepts Corporation<BR>HC 68
Box 11AA<BR>Sapello, NM 87745</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Ph: 505-425-2962<BR>Fax: 505-213-0985</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Email: <A
href="mailto:cary@energyconcepts.net">cary@energyconcepts.net</A><BR>Web page:
<A href="http://www.energyconcepts.net">www.energyconcepts.net</A></FONT></DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=allan@positiveenergysolar.com
href="mailto:allan@positiveenergysolar.com">Allan Sindelar</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> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Wednesday, August 06, 2008 8:55
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [RE-wrenches] Inverter for
Switch to GT</DIV>
<DIV><BR></DIV><!-- Converted from text/rtf format -->
<P><FONT face=Arial>Wrenches,</FONT> <BR><FONT face=Arial>Occasionally, but
more frequently recently, we get requests to turn off-grid systems into
grid-tie systems. Usually this involves sale of a property to a new owner, and
either grid is brought in to facilitate an easier sale or the new owner brings
it in. Once grid is in, the off-grid-based system is of limited utility, as
the equipment won't sell back. Most of these new owners want a
maintenance-free batteryless system.</FONT></P>
<P><FONT face=Arial>Unfortunately, most off-grid arrays don't easily convert,
as the string sizing doesn't match. Here's my question: I have two of these
requests right now. Both are systems we installed in the late 90s. One has ten
BP 275s, one has twelve. These are standard 12V 75W modules common to that
time. I need advice on inverters that will work with these strings.</FONT></P>
<P><FONT face=Arial>The Sunny Boy 700, which is the only small inverter model
SMA still offers, will handle one string of up to nine of these in our
temperature range. Larger models require higher string voltage. Fronius also
requires higher voltage.</FONT></P>
<P><FONT face=Arial>You know, it's a real problem to have to explain to new
green-oriented homeowners that there's nothing I can do with their
ten-year-old PV system to make it spin their new meter backward. It doesn't do
much for the mainstream perception of PV for these folks.</FONT></P>
<P><FONT face=Arial>What will work with these existing arrays, please?</FONT>
</P>
<P><FONT face=g>Allan Sindelar</FONT> <BR><A
href="mailto:allan@positiveenergysolar.com"><U></U><U><FONT face=g
color=#0000ff size=2>allan_(at)_positiveenergysolar.com</FONT></U></A>
<BR><FONT face=g size=2>NABCEP certified solar PV installer</FONT> <BR><FONT
face=g size=2>Positive Energy, Inc.</FONT> <BR><FONT face=g size=2>3225A
Richards Lane</FONT> <BR><FONT face=g size=2>Santa Fe NM 87507</FONT>
<BR><FONT face=g size=2>505 424-1112</FONT> </P></BLOCKQUOTE></BODY></HTML>