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<p class=MsoNormal><span style='color:#1F497D'>Reposting from mid-October, in
response, Todd:<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal style='margin-left:.5in'><span style='color:#1F497D'>We have
one off-grid customer who is well into his seventies. He has an old/upgraded
12V system, originally installed by Windy in the late 1980s. (He\u2019s the only
customer we care for who is still using his original basic Trace 1512 \u2013 the
original black box from 1988, not the DR1512 \u2013 inverter; \u201cif it ain\u2019t broke,
don\u2019t fix it\u201d.) The system uses about 800W of mixed panels, an FM60 and a DC
generator with a Mark VI Field Controller from the old days of Home Power
homebrew articles. He does not want battery maintenance in his life.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in'><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal style='margin-left:.5in'><span style='color:#1F497D'>After
going through several sets of other batteries, including the recycled GNB
Absolyte IIs that Northwest Energy Storage offered in the late 1990s, we
installed four Concorde PVX-2580s (12V, 258 A/hr @24 hr. rate) in parallel for
him in April 2004. They continue to work well 6½ years later, in daily home use
year-round.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in'><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal style='margin-left:.5in'><span style='color:#1F497D'>He also
has a rental house next door, with 450W of PV, a DR2424 and SB50 that we
installed in 2000. This system has two of the same Concorde PVX-2580s in
series, for 255 A/hr at 24V. These batteries also continue to perform well
after nearly ten (<b>!</b>) years of operation. <o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in'><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal style='margin-left:.5in'><span style='color:#1F497D'>Both
systems have E-Meters, and both the owner and the stable, long-term tenant know
how to use the basic functions to live within their energy budgets, so I am
sure that this has contributed to consistent good performance.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in'><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal style='margin-left:.5in'><span style='color:#1F497D'>Like
Warren of NAW&S, we have never had a failure of a Concorde, other than user
error.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;color:#1F497D'>Allan Sindelar<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:#1F497D'><a
href="mailto:Allan@positiveenergysolar.com">Allan@positiveenergysolar.com</a></span><span
style='font-size:11.0pt;color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:#1F497D'>NABCEP
Certified Photovoltaic Installer</span><span style='font-size:11.0pt;
color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:#1F497D'>EE98J
Journeyman Electrician</span><span style='font-size:11.0pt;color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><b><span style='font-size:11.0pt;color:#1F497D'>Positive
Energy, Inc.<o:p></o:p></span></b></p>
<p class=MsoNormal><span style='font-size:11.0pt;color:#1F497D'>3201 Calle
Marie<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;color:#1F497D'>Santa Fe, New
Mexico 87507<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;color:#1F497D'>505 424-1112<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:#1F497D'><a
href="http://www.positiveenergysolar.com/">www.PositiveEnergySolar.com</a></span><span
style='font-size:11.0pt;color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal style='margin-bottom:13.5pt'><span style='font-size:13.5pt;
font-family:"Arial","sans-serif"'>As someone who has been doing off grid
systems since 1985 I can say from experience, ALL sealed batteries are CRAP...
especially in off grid applications. They are too fragile and do not last.<br>
<br>
Todd</span><o:p></o:p></p>
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