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<DIV><SPAN class=875172901-27032009><FONT face=Arial color=#0000ff
size=2>nothing to be sorry about .I was NOT suggesting DOING anything
illegal. </FONT></SPAN></DIV>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
<DIV></DIV>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left><FONT
face=Tahoma size=2>-----Original Message-----<BR><B>From:</B>
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, March 26, 2009 6:28 PM<BR><B>To:</B>
'RE-wrenches'<BR><B>Subject:</B> Re: [RE-wrenches] Battery based grid tie
question.<BR><BR></FONT></DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">Sorry,
Tump,</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">The SW lost its UL
listing for Rev. 4.01 software around 2000. The GTI, used with Rev. 4.10 was
relisted for grid-interactive use. At least in our area, GT systems with
pre-GTI SW's were allowed to remain in service, as they were grandfathered in.
However, no pre-GTI SW can be used in a new GT application. It's not listed
for GT operation any more. What you are recommending can only be used by
"getting away with it" if an inspector or utility isn't aware of this history,
but it's not "legal".</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">Besides, while it's
not cost-effective to replace any SW's with more efficient GTFX's, I would not
use a SW in a new GT application anyway. They are an early technology and
quite inefficient in GT use, due to both the lack of a "silent sell" topology
and their fundamental us of the grid at night to maintain float voltage (thee
are related aspects of the same issue). According to posts here on this issue
any years ago, te SW is around 55% efficient overall in GT mode, if I recall
correctly.</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">Allan at Positive
Energy</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P>
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face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt">
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</SPAN></FONT></DIV>
<P class=MsoNormal><B><FONT face=Tahoma size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">From:</SPAN></FONT></B><FONT
face=Tahoma size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">
re-wrenches <B><SPAN style="FONT-WEIGHT: bold">On Behalf Of
</SPAN></B>Tump</SPAN></FONT><o:p></o:p></P>
<DIV>
<P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">What year are the
SWs? they have had grid inter tie for years, if the inverters were
manufactured prior to I think 2001 then you do not need to have the gti box
installed. If the guys on a budget why spend the extra $$$$? Its
not the most efficient it certainly cheaper.
</SPAN></FONT><o:p></o:p></P></DIV>
<BLOCKQUOTE style="MARGIN-TOP: 5pt; MARGIN-BOTTOM: 5pt; MARGIN-RIGHT: 0in">
<P class=MsoNormal style="MARGIN-BOTTOM: 12pt"><FONT face=Tahoma
size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">-----Original
Message-----<BR><B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B>
re-wrenches <B><SPAN style="FONT-WEIGHT: bold">On Behalf Of
</SPAN></B>robert ellison</SPAN></FONT><o:p></o:p></P>
<DIV>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt">On a similar question to what works well together. I
am rebuilding the wind side of an old off grid system that the new owner has
brought the grid in. He wants to grid tie the system. Another dealer is
doing the solar side of things.<o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt">My thoughts are the 48 volt SW inverters need to go,
and replace them with Outback 48 volt grid tie units and have the wind keep
the battery up. Am I correct that when the batteries are full from what ever
source the outbacks will grid connect and net meter any excess power to the
grid? Seems that I remember that they will but almost never get a call for
grid tie up here in the sticks so I figured I would ask the knowledge
base.<o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt">I would suggest he keep the SW inverters to
generator charge in case of a long power outage as last I knew the Outbacks
(FX) did not care for generator
power.<o:p></o:p></SPAN></FONT></P></DIV></BLOCKQUOTE></DIV></BLOCKQUOTE></BODY></HTML>