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Allan,<br>
<br>
I've got a customer that runs 5 or 6 Onan LP generators, all in the
20 to 40 kVA range, for multiple ranch buildings. Lots of hours with
very little trouble. The 20-kW is a little bigger than you are
looking for, but I suspect it would be worth it in the long haul.
The smaller ones are air cooled. <br>
<pre class="moz-signature" cols="72">Kent Osterberg
Blue Mountain Solar, Inc.
<a class="moz-txt-link-abbreviated" href="http://www.bluemountainsolar.com">www.bluemountainsolar.com</a>
t: 541-568-4882</pre>
<br>
On 1/9/2012 7:59 PM, Allan Sindelar wrote:
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type="cite">
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Wrenches:<br>
We have cautiously agreed to take on a substantial upgrade and
rehabilitation of a poorly designed 48V off-grid system. Our
upgrade will include a substantial array addition, battery
replacement, and charge controller/safety disconnect replacement.
But the immediate need is for a generator. The 6 year old system
has worn out two Onan residential standby generators; the second
one just now (at winter solstice) has failed completely.<br>
<br>
We expect to keep the two SW5548 inverters. The site is at 7,800'
elevation. The fuel must be LP. The customer is willing to pay for
a high-quality unit. We expect only to specify or recommend the
unit, but not resell it, so there's no profit motivation involved;
we just want the best solution..<br>
<br>
I am looking for recommendations of a low-speed, liquid-cooled,
commercial- or industrial-grade LP generator, of at least 12kW and
preferably around 15kW, with a good reputation for long-term
reliability, and that is not designed for home standby use (with
phantom-load heaters and controls). It will be located outdoors,
so must have a weather enclosure.<br>
<br>
I occasionally am asked to answer this same question by Home Power
readers, who assume I know the answer because I wrote a primer on
generators for HP awhile back. Truth is, I don't have any good
recommendations in this size range, and I'm really hoping that
some of you experienced off-grid Wrenches who have done larger
systems can help here.<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
color="#000099" face="Times New Roman, Times, serif"><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>
<b>Positive Energy, Inc.</b><br>
3201 Calle Marie<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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