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<p class=MsoNormal><font size=4 color=black face=Calibri><span
style='font-size:14.0pt;color:black'>I know it was not the question but on the
light dimming, it might need to be controlled / corrected or the new pump is
going to really set it off…..<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=4 color=black face=Calibri><span
style='font-size:14.0pt;color:black'>What is the inverter? <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=4 color=black face=Calibri><span
style='font-size:14.0pt;color:black'>How long is the wire run to the inverter
and is it 4/0 cable? <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=4 color=black face=Calibri><span
style='font-size:14.0pt;color:black'>A larger bank would probably help if the
inverter and cable size is correct.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=4 color=black face=Calibri><span
style='font-size:14.0pt;color:black'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=4 color=black face=Calibri><span
style='font-size:14.0pt;color:black'>Bob<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=4 color=black face=Calibri><span
style='font-size:14.0pt;color:black'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif";font-weight:bold'>From:</span></font></b><font
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
re-wrenches-bounces@lists.re-wrenches.org [mailto:re-wrenches-bounces@lists.re-wrenches.org]
<b><span style='font-weight:bold'>On Behalf Of </span></b>Bob Clark<br>
<b><span style='font-weight:bold'>Sent:</span></b> Sunday, May 02, 2010 4:30 PM<br>
<b><span style='font-weight:bold'>To:</span></b>
re-wrenches@lists.re-wrenches.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> [RE-wrenches] Heinz 57
off-grid array - What should I do with the solar modules?<o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Century Gothic"><span style='font-size:
11.0pt;font-family:"Century Gothic","sans-serif";letter-spacing:-.3pt'>Wrenches:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Century Gothic"><span style='font-size:
11.0pt;font-family:"Century Gothic","sans-serif";letter-spacing:-.3pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Century Gothic"><span style='font-size:
11.0pt;font-family:"Century Gothic","sans-serif";letter-spacing:-.3pt'>We were
called to assess the status of an off-grid system that is not the worst I have
seen, but it comes close.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Century Gothic"><span style='font-size:
11.0pt;font-family:"Century Gothic","sans-serif";letter-spacing:-.3pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Century Gothic"><span style='font-size:
11.0pt;font-family:"Century Gothic","sans-serif";letter-spacing:-.3pt'>I have
some preliminary thoughts about system redesign, but would like to hear from
the Wrenches about the array.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Century Gothic"><span style='font-size:
11.0pt;font-family:"Century Gothic","sans-serif";letter-spacing:-.3pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><b><font size=2 face="Century Gothic"><span
style='font-size:11.0pt;font-family:"Century Gothic","sans-serif";letter-spacing:
-.3pt;font-weight:bold'>Givens:<o:p></o:p></span></font></b></p>
<p class=MsoNormal><font size=2 face="Century Gothic"><span style='font-size:
11.0pt;font-family:"Century Gothic","sans-serif";letter-spacing:-.3pt'>We will
not install anything unless it is to code. It is obvious that none of the
existing system was installed to code.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Century Gothic"><span style='font-size:
11.0pt;font-family:"Century Gothic","sans-serif";letter-spacing:-.3pt'>We will
use the existing 24V battery bank consisting of 8, Trojan L16s. The
batteries are still “relatively fresh.”<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Century Gothic"><span style='font-size:
11.0pt;font-family:"Century Gothic","sans-serif";letter-spacing:-.3pt'>Pump is
a Franklin pump ½ hp 115VAC. The CFs dim when the pump starts.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Century Gothic"><span style='font-size:
11.0pt;font-family:"Century Gothic","sans-serif";letter-spacing:-.3pt'>New load
will be a GRINDER PUMP FOR SEPTIC = 2HP, 15amp (240 or 120VAC – more than
likely it will be 240V pump) – Another light dimmer!<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Century Gothic"><span style='font-size:
11.0pt;font-family:"Century Gothic","sans-serif";letter-spacing:-.3pt'>Modest
daily electrical load (estimate no more than 600 WHr/day; 25AHr) – they
are <i><u><span style='font-style:italic'>very good</span></u></i> at managing their
electrical use.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Century Gothic"><span style='font-size:
11.0pt;font-family:"Century Gothic","sans-serif";letter-spacing:-.3pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><b><font size=2 face="Century Gothic"><span
style='font-size:11.0pt;font-family:"Century Gothic","sans-serif";letter-spacing:
-.3pt;font-weight:bold'>Solar array – to keep or replace?<o:p></o:p></span></font></b></p>
<p class=MsoNormal><font size=2 face="Century Gothic"><span style='font-size:
11.0pt;font-family:"Century Gothic","sans-serif";letter-spacing:-.3pt'>8 solar
modules – a Heinz 57 mix of older modules - 2 Photowatt PMX500 (Are these
modules UL listed? There did not appear to be a rating label on the back.)
wired in series, 2 Kyocera KC120-1 wired in series, 2 Golden Genesis PV-75
wired in series, 2 Photowatt PW 1000 12V-24V internally wired for 24V wired in
parallel with the other modules strings – all of these modules are wired
in 5 parallel strings for approximately 34.2Vmp and 20.4Imp, ~695W
(STC). Oh, and they need a new mounting structures for the modules.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Century Gothic"><span style='font-size:
11.0pt;font-family:"Century Gothic","sans-serif";letter-spacing:-.3pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Century Gothic"><span style='font-size:
11.0pt;font-family:"Century Gothic","sans-serif";letter-spacing:-.3pt'>Should I
try to work with these modules or advise the customer to start over (any
modules that are not UL listed will have to go)?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Century Gothic"><span style='font-size:
11.0pt;font-family:"Century Gothic","sans-serif";letter-spacing:-.3pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Century Gothic"><span style='font-size:
11.0pt;font-family:"Century Gothic","sans-serif";letter-spacing:-.3pt'>What is a
good “rule of thumb” for a ratio of PV watts to battery bank
capacity per day of autonomy?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Century Gothic"><span style='font-size:
11.0pt;font-family:"Century Gothic","sans-serif";letter-spacing:-.3pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Century Gothic"><span style='font-size:
11.0pt;font-family:"Century Gothic","sans-serif";letter-spacing:-.3pt'>Thanks
for your ideas.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Century Gothic"><span style='font-size:
11.0pt;font-family:"Century Gothic","sans-serif";letter-spacing:-.3pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><b><font size=2 color="#e36c0a" face=Papyrus><span
style='font-size:11.0pt;font-family:Papyrus;color:#E36C0A;font-weight:bold'>Bob
Clark<o:p></o:p></span></font></b></p>
<p class=MsoNormal><b><i><font size=2 color="#e36c0a" face=Papyrus><span
style='font-size:11.0pt;font-family:Papyrus;color:#E36C0A;font-weight:bold;
font-style:italic'>SolarWind Energy Systems, LLC<o:p></o:p></span></font></i></b></p>
<p class=MsoNormal><font size=2 face="Century Gothic"><span style='font-size:
11.0pt;font-family:"Century Gothic","sans-serif";letter-spacing:-.3pt'><o:p> </o:p></span></font></p>
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