Allan......very good point...I had not thunk that far......It will probably be a good difference in temp. too.....I am not quite sure how we would address that as the system will only have one charging source and 2 strings of batteries.....one on the top shelf and one on the bottom....???? Any ideas? I my initial inclination would be to lean towards putting the temp sensor on the top string as over heating of the battery bank due to over charging is probably a bigger concern than being very cold as this is in a residential garage with out much insulation in relatively mild wintered Oregon....<br>
Thanks to all for their ideas and recommendations....this list and its members are definitely a priceless resource.....I would gladly share my chantrelle mushroom loot i just pulled out of the forest with you all were you here right now!<br>
Cheers....<br><br>-- <br>Sunny Regards,<br>Kirpal Khalsa<br>NABCEP Certified Solar PV Installer<br>Renewable Energy Systems<br><a href="http://www.oregonsolarworks.com">www.oregonsolarworks.com</a><br>541-218-0201 m<br>541-592-3958 o <br>
<br><div class="gmail_quote">On Mon, Oct 19, 2009 at 1:12 PM, Allan Sindelar <span dir="ltr"><<a href="mailto:allan@positiveenergysolar.com">allan@positiveenergysolar.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div link="blue" vlink="purple" lang="EN-US">
<div>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">Kirpal,</span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">Keep in mind variations in
upper- and lower-bank temperatures from ambient heat stratification if the
batteries are in an indoor space. This affects relative SOC among strings,
affecting string life.</span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"> </span></p>
<p class="MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125);">Allan Sindelar</span></p>
<p class="MsoNormal"><span style="font-size: 10pt; color: rgb(31, 73, 125);"><a href="mailto:Allan@positiveenergysolar.com" target="_blank">Allan@positiveenergysolar.com</a></span><span style="font-size: 11pt; color: rgb(31, 73, 125);"></span></p>
<p class="MsoNormal"><span style="font-size: 10pt; color: rgb(31, 73, 125);">NABCEP
Certified Photovoltaic Installer</span><span style="font-size: 11pt; color: rgb(31, 73, 125);"></span></p>
<p class="MsoNormal"><span style="font-size: 10pt; color: rgb(31, 73, 125);">EE98J
Journeyman Electrician</span><span style="font-size: 11pt; color: rgb(31, 73, 125);"></span></p>
<p class="MsoNormal"><b><span style="font-size: 11pt; color: rgb(31, 73, 125);">Positive
Energy, Inc.</span></b></p>
<p class="MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125);">3201 Calle
Marie</span></p>
<p class="MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125);">Santa Fe, New
Mexico 87507</span></p>
<p class="MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125);">505 424-1112</span></p>
<p class="MsoNormal"><span style="font-size: 10pt; color: rgb(31, 73, 125);"><a href="http://www.positiveenergysolar.com/" target="_blank">www.PositiveEnergySolar.com</a></span><span style="font-size: 11pt; color: rgb(31, 73, 125);"></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"> </span></p>
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<p class="MsoNormal"><b><span style="font-size: 10pt;">From:</span></b><span style="font-size: 10pt;"> <a href="mailto:re-wrenches-bounces@lists.re-wrenches.org" target="_blank">re-wrenches-bounces@lists.re-wrenches.org</a>
[mailto:<a href="mailto:re-wrenches-bounces@lists.re-wrenches.org" target="_blank">re-wrenches-bounces@lists.re-wrenches.org</a>] <b>On Behalf Of </b>Kirpal
Khalsa<br>
<b>Sent:</b> Monday, October 19, 2009 1:47 PM<br>
<b>To:</b> RE-wrenches<br>
<b>Subject:</b> [RE-wrenches] Battery Racks</span></p>
</div><div><div></div><div class="h5">
<p class="MsoNormal"> </p>
<p class="MsoNormal">Hi All.....anyone have any experience with battery racking
systems for big banks of flooded lead acid batteries? Typically we don't
like to stack flooded batteries but we may not have space for as big of a bank
as we need if we don't stack......Any one know of a company that engineers
racks that are seismically sound, have the ability to have spill containment
all while maintaining some accessibility? I know DPW makes battery racks
but looking at their web site they are typically smaller than what we need.....<br>
We need to support roughly 7000lbs.....and are exploring if this is even
doable....<br>
Cheers and thanks!<br clear="all">
<br>
-- <br>
Sunny Regards,<br>
Kirpal Khalsa<br>
NABCEP Certified Solar PV Installer<br>
Renewable Energy Systems<br>
<a href="http://www.oregonsolarworks.com" target="_blank">www.oregonsolarworks.com</a><br>
541-218-0201 m<br>
541-592-3958 o</p>
</div></div></div>
</div>
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<br></blockquote></div><br><br clear="all"><br>-- <br>Sunny Regards,<br>Kirpal Khalsa<br>NABCEP Certified Solar PV Installer<br>Renewable Energy Systems<br><a href="http://www.oregonsolarworks.com">www.oregonsolarworks.com</a><br>
541-218-0201 m<br>541-592-3958 o<br>