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<DIV><SPAN class=593424418-02032009>We had a similar lead come up a year ago,
although the lodge in this case was 22 miles from mains power and 10K feet
up.</SPAN></DIV>
<DIV><SPAN class=593424418-02032009>Thank goodness we had contracted $3500 in
design fees up front to do all of the load projection and design
research work. We determined that the batteries were the limiting factor: at
48V, about 2,000 amp-hours, and two or three strings max (depends on expected
DOD), we couldn't provide a battery bank large enough.</SPAN></DIV>
<DIV><SPAN class=593424418-02032009></SPAN> </DIV>
<DIV><SPAN class=593424418-02032009>The only solution we arrived at was using
Sunny Islands in 3 phase, redundant generators, duplicate services, Sunny Boys
on arrays, and Windy Boys on two Provens to build an AC-coupled microgrid. That
way we had duplicate battery banks.</SPAN></DIV>
<DIV><SPAN class=593424418-02032009></SPAN> </DIV>
<DIV><SPAN class=593424418-02032009>When we presented the general design
approach to the owner's (common household name, largest private
landowner in the US) representatives through the electrical engineer,
with a preliminary estimate around $700K, they decided to run the lodge on
generators.</SPAN></DIV>
<P><SPAN lang=en-us>Allan Sindelar</SPAN> <BR><SPAN lang=en-us></SPAN><A
href="mailto:allan@positiveenergysolar.com"><SPAN lang=en-us><U></U><U><FONT
color=#0000ff size=2>allan(at)positiveenergysolar.com</FONT></U></SPAN></A><SPAN
lang=en-us></SPAN> <BR><SPAN lang=en-us><FONT size=2>NABCEP</FONT> <FONT
face=Arial size=2>C</FONT><FONT face=g size=2>ertified</FONT> <FONT face=Arial
size=2>S</FONT><FONT face=g size=2>olar PV</FONT> <FONT face=Arial
size=2>I</FONT><FONT face=g size=2>nstaller</FONT></SPAN> <BR><SPAN
lang=en-us><FONT face=g size=2>Positive Energy, Inc.</FONT></SPAN> <BR><SPAN
lang=en-us><FONT face=Arial size=2>3201 Calle Marie</FONT></SPAN> <BR><SPAN
lang=en-us><FONT face=g size=2>Santa Fe NM 87507</FONT></SPAN> <BR><SPAN
lang=en-us><FONT face=g size=2>505 424-1112</FONT></SPAN> </P>
<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>Mark
Dickson<BR><BR></FONT></DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Hello Wrenches,
<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">I have a customer that
has really likes the thought of being off-grid and they have asked me to design
a system for their “lodge”. I have kicked and screamed to get them to
consider a grid-tied system using their existing grid service—to no avail.
<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">After doing a
preliminary load analysis, I have determined that it would take ~35kW of solar
and a couple Bergey Excels for it to work along with a 19,000Ah battery
bank. <o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">So, how big is too
big? If we were to move forward on this, what would be the major
obstacles/show stoppers besides the price (as price is not an
issue)?<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">What are some of the
largest battery based systems that you have installed or heard
of?<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Any input is welcome. .
.besides being told just to run away from this one. .
.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"> <o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">REgards,
<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Comic Sans MS" color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: 'Comic Sans MS'">Mark
Dickson</SPAN></FONT><FONT color=navy><SPAN
style="COLOR: navy"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Comic Sans MS" color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: 'Comic Sans MS'">Oasis Montana
Inc.</SPAN></FONT><FONT color=navy><SPAN
style="COLOR: navy"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Comic Sans MS" color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: 'Comic Sans MS'"><A
href="http://www.oasismontana.com/" target=_blank></A><A
href="http://www.oasismontana.com/" target=_blank><FONT color=#497699><SPAN
style="COLOR: #497699">www.oasismontana.com</SPAN></FONT></A></SPAN></FONT><FONT
color=navy><SPAN style="COLOR: navy"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Times New Roman" color=navy size=3><SPAN
style="FONT-SIZE: 12pt; COLOR: navy"> </SPAN></FONT><FONT
face="Comic Sans MS" color=navy size=2><SPAN
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</SPAN></FONT><o:p></o:p></P>
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