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<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>I have always
wanted to do a super insulated house design that had a large central masonry mass
or floor slab with heat tubing that you could cool in the summer during the nighttime
and solar heat in the winter with solar. Or an earth tube air duct system that you
could pull cool night air through that would cool the slab. I built a Passive Annual
Heat Storage home 16 years ago that kept the house at 68 F during the summer in
western Washington. I was very comfortable. Any thoughts ?<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial","sans-serif"'>Thanks
-<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial","sans-serif"'>Dana
Orzel<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial","sans-serif"'>Great
Solar Works, Inc<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial","sans-serif"'>www.solarwork.com<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial","sans-serif"'>E
- dana@solarwork.com<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial","sans-serif"'>V
- 970.626.5253<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial","sans-serif"'>F
- 970.626.4140<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial","sans-serif"'>C
- 970.209.4076<o:p></o:p></span></p>
</div>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'>From:</span></b><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>On Behalf Of </b>Tom
Elliot<br>
<b>Sent:</b> Wednesday, August 20, 2008 3:57 PM<br>
<b>To:</b> RE-wrenches<br>
<b>Subject:</b> Re: [RE-wrenches] offgrid system question<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p>
<div>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif"'>Thank you Jeff, for asking the obvious.
I've been agog that no one seemed to think this was a nutty situation for an
off-grid home.</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'> <o:p></o:p></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif"'>T.</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'> <o:p></o:p></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'> <o:p></o:p></p>
</div>
<blockquote style='border:none;border-left:solid black 1.5pt;padding:0in 0in 0in 4.0pt;
margin-left:3.75pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt'>
<div>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif"'>----- Original Message ----- <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in;background:#E4E4E4'><b><span
style='font-size:10.0pt;font-family:"Arial","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Arial","sans-serif"'> <a
href="mailto:jryago@netscape.com" title="jryago@netscape.com">Jeff Yago</a> <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;
font-family:"Arial","sans-serif"'>To:</span></b><span style='font-size:10.0pt;
font-family:"Arial","sans-serif"'> <a
href="mailto:re-wrenches@lists.re-wrenches.org"
title="re-wrenches@lists.re-wrenches.org">RE-wrenches</a> <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;
font-family:"Arial","sans-serif"'>Sent:</span></b><span style='font-size:10.0pt;
font-family:"Arial","sans-serif"'> Wednesday, August 20, 2008 10:57 AM<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;
font-family:"Arial","sans-serif"'>Subject:</span></b><span style='font-size:
10.0pt;font-family:"Arial","sans-serif"'> Re: [RE-wrenches] offgrid system
question<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p>
</div>
<div>
<div>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif"'>I may be out of line here, but most of these
comments have been related to making the right program settings and startup
surge current issues. I did not read any comments that this client is
nuts to try and run a 3.5 ton air conditioner from a solar off-grid system, let
alone a system with such a very small capacity. <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif"'> <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif"'>I would be surprised if this
small existing solar array and batteries can keep up with the regular
loads like lights, kitchen appliances, refrigerators, and entertainment
equipment, let alone also running a central air conditioner. .
<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif"'> <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif"'>I would not just debate the problems of
surge current, I would like to know how this little solar system is going to
keep up with the constant load of approx. 4,000 watts for the AC unit plus
another 500 watts for the air handling unit which he did not mention.
With a constant drain of 4,500 watts, just how long do you think this battery
bank will last? For most locations, during peak summer days a
typical AC unit needs to run constantly 12 to 16 hours per day.
<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif"'> <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif"'>I would be interested in hearing from others
on this, but here in the humid and hot east it is not possible to provide air
conditioning for an off-grid home unless we are just cooling one or two rooms
with a low energy Sanyo type split system in the 1/2 to 3/4 ton range. Of
course if you have enough solar modules and batteries you could run
anything, but can you afford it?<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif"'> <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif"'>We do lots of off-grid systems and the first
thing we tell clients is to not even think about having air conditioning,
electric hot water heaters, or electric clothes dryers unless they have a
really big bag of money.<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif"'> <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif"'>Jeff Yago<o:p></o:p></span></p>
</div>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif"'><br>
<o:p></o:p></span></p>
<div class=MsoNormal align=center style='margin-left:.5in;text-align:center'><span
style='font-size:10.0pt;font-family:"Arial","sans-serif"'>
<hr size=2 width="100%" align=center>
</span></div>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif"'>Netscape. Just the Net You Need.<o:p></o:p></span></p>
</div>
<pre style='margin-left:.5in'>No virus found in this incoming message.<o:p></o:p></pre><pre
style='margin-left:.5in'>Checked by AVG - http://www.avg.com <o:p></o:p></pre><pre
style='margin-left:.5in'>Version: 8.0.138 / Virus Database: 270.6.6/1624 - Release Date: 8/20/2008 7:11 PM<o:p></o:p></pre>
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<hr size=2 width="100%" align=center>
</div>
<p class=MsoNormal style='mso-margin-top-alt:0in;margin-right:0in;margin-bottom:
12.0pt;margin-left:.5in'>_______________________________________________<br>
List sponsored by Home Power magazine<br>
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RE-wrenches@lists.re-wrenches.org<br>
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<pre style='margin-left:.5in'>No virus found in this outgoing message.<o:p></o:p></pre><pre
style='margin-left:.5in'>Checked by AVG - http://www.avg.com <o:p></o:p></pre><pre
style='margin-left:.5in'>Version: 8.0.138 / Virus Database: 270.6.6/1624 - Release Date: 8/20/2008 7:11 PM<o:p></o:p></pre></div>
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