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<div class="moz-cite-prefix">Hi Allan;<br>
<br>
I've used the energy star rated deep freezers with good results,
and I use their annual kwh listing, and divide by 365 days. I've
found with actual measurements and not set to the coldest setting,
that I can beat the E star ratings by up to 20% indoors. Your
outdoor in winter scenario will probably cut the run time down by
80%. I've done that same trick, and the customers loved it, but
they moved it in in the summer as it ran too much in the summer in
85 deg weather.<br>
<br>
<br>
Ray Walters<br>
<br>
On 12/10/2012 9:12 PM, Allan Sindelar wrote:<br>
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type="cite">
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Wrenches,<br>
We still try to encourage prospective off grid customers to do a
full load analysis as an initial step in the system design
process. To the point:<br>
<br>
1) What is a good watt-hours/day figure to use for a typical,
modern, new, carefully chosen, fairly large conventional AC chest
freezer, if kept in a heated indoor location? Assume 65 degrees
and seldom opened.<br>
<br>
I will encourage that the freezer be located in a shaded,
protected outdoor location, in order to greatly reduce winter
energy consumption, but I need a good base figure to work with. <br>
<br>
The proposed system will most likely be 48Vnom, so a Sundanzer or
similar DC freezer is out.<br>
<br>
2) Same question for a ceiling fan, for general slow circulation
of winter heat. The energystar.gov list gives relative cfm
efficiency but not wattages. Is 55W still a good figure to use as
a default?<br>
<br>
<br>
I have attached a condensed energystar.gov list for the freezers,
but wonder what other off grid Wrenches typically use. Also, I'm
not sure that Wrenches posts allow attachments, so this may not
appear with my message.<br>
<br>
Thank you,<br>
Allan<br>
<div class="moz-signature">-- <br>
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<font face="Times New Roman, Times, serif"><b>Allan Sindelar</b></font><br>
<small><a moz-do-not-send="true"
href="mailto:Allan@positiveenergysolar.com"><font
face="Times New Roman, Times, serif" color="#000099"><u>Allan@positiveenergysolar.com</u></font></a></small><font
face="Times New Roman, Times, serif"><br>
<span style="font-size: 10pt;">NABCEP Certified Photovoltaic
Installer<br>
NABCEP Certified Technical Sales Professional<br>
New Mexico EE98J Journeyman Electrician<br>
Founder and Chief Technology Officer<br>
<b>Positive Energy, Inc.</b><br>
3209 Richards Lane (note new address)<br>
Santa Fe, New Mexico 87507<br>
<b>505 424-1112</b><br>
<a moz-do-not-send="true"
href="http://www.positiveenergysolar.com/" target="_blank"><u>www.positiveenergysolar.com</u></a><o:p></o:p></span></font>
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