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<DIV dir=ltr align=left><SPAN class=609345117-11082009><FONT size=2
face=Arial>"we have to split the AC output into two separate
services."</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=609345117-11082009><FONT size=2
face=Arial></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=609345117-11082009><FONT size=2
face=Arial>How can this be done with a single inverter?</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=609345117-11082009></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>Peter
Parrish<BR><B>Sent:</B> Tuesday, August 11, 2009 9:50 AM<BR><B>To:</B>
'RE-wrenches'<BR><B>Subject:</B> [RE-wrenches] 30 kW
Inverters<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT color=black size=2 face=Arial><SPAN
style="FONT-FAMILY: Arial; COLOR: windowtext; FONT-SIZE: 10pt">We haven’t
designed/installed a 30 kW-dc class system for some time now (last time we used
a Xantrex PV 30) and are currently investigating what is available in terms of
single inverters with 240V 3Ph output. Our customer has enough roof space to for
58 kWp of modules, but we have to split the AC output into two separate
services. So the first thing I’ve noticed is that there are not many inverters
in the 30 kW range: Satcon PowerGate 30, Xantrex GT30 and by comparison a Sunny
Tower with 6ea 6 kW SB inverters.</SPAN></FONT></P>
<P class=MsoNormal><FONT color=black size=2 face=Arial><SPAN
style="FONT-FAMILY: Arial; COLOR: windowtext; FONT-SIZE: 10pt"></SPAN></FONT> </P>
<P class=MsoNormal><FONT color=black size=2 face=Arial><SPAN
style="FONT-FAMILY: Arial; COLOR: windowtext; FONT-SIZE: 10pt">We will be
feeding 240 3P so the GT30 and ST will need transformers.</SPAN></FONT></P>
<P class=MsoNormal><FONT color=black size=2 face=Arial><SPAN
style="FONT-FAMILY: Arial; COLOR: windowtext; FONT-SIZE: 10pt"></SPAN></FONT> </P>
<P class=MsoNormal><FONT color=black size=2 face=Arial><SPAN
style="FONT-FAMILY: Arial; COLOR: windowtext; FONT-SIZE: 10pt">So, I’m inclined
to look more carefully into the PowerGate 30, first.</SPAN></FONT></P>
<P class=MsoNormal><FONT color=black size=2 face=Arial><SPAN
style="FONT-FAMILY: Arial; COLOR: windowtext; FONT-SIZE: 10pt"></SPAN></FONT> </P>
<P class=MsoNormal><FONT color=black size=2 face=Arial><SPAN
style="FONT-FAMILY: Arial; COLOR: windowtext; FONT-SIZE: 10pt">I am looking for
some feedback from folks who have recently installed 30 kW inverters. If this is
contained in an archived thread, please direct me
appropriately.</SPAN></FONT></P>
<P class=MsoNormal><FONT color=black size=2 face=Arial><SPAN
style="FONT-FAMILY: Arial; COLOR: windowtext; FONT-SIZE: 10pt"></SPAN></FONT> </P>
<DIV>
<P class=MsoNormal><FONT color=black size=2 face=Arial><SPAN
style="FONT-FAMILY: Arial; COLOR: windowtext; FONT-SIZE: 10pt">-
Peter</SPAN></FONT></P>
<P class=MsoNormal><FONT color=black size=2 face=Arial><SPAN
style="FONT-FAMILY: Arial; COLOR: windowtext; FONT-SIZE: 10pt"></SPAN></FONT> </P>
<P class=MsoNormal><FONT color=black size=2 face=Arial><SPAN
style="FONT-FAMILY: Arial; COLOR: windowtext; FONT-SIZE: 10pt">Peter T. Parrish,
Ph.D., President<BR>California Solar Engineering, Inc.<BR>820 Cynthia Ave., Los
Angeles, CA 90065<BR>CA Lic. 854779, NABCEP Cert.
031806-26<BR></SPAN></FONT><FONT color=black size=2 face=Arial><SPAN
style="FONT-FAMILY: Arial; COLOR: windowtext; FONT-SIZE: 10pt"><A
href="mailto:peter.parrish@calsolareng.com"><FONT color=black><SPAN
style="COLOR: windowtext">peter.parrish@calsolareng.com</SPAN></FONT></A>
<BR>Ph 323-258-8883, Mobile 323-839-6108, Fax
323-258-8885
</SPAN></FONT></P>
<P><FONT color=black size=2 face=Arial><SPAN
style="COLOR: windowtext; FONT-SIZE: 10pt"></SPAN></FONT> </P></DIV></DIV></BODY></HTML>