[RE-wrenches] Propane Generator, Dual Outback Inverters

[Mark Frye]

Allen,
 
Can I infer that if you are shutting off the gen before charge rates drop in
absorption that you are running only briefly in the absorb phase? Or do your
charge currents remain high through out an extended absortion phase?
 
Perhaps you have plenty of PV which you rely upon to bring the batteries up
through the absorption phase, once the gen is shut off.
 
I would be interest to learn more about your approach to this.
 
Thanks,
 
Mark Frye 
Berkeley Solar Electric Systems 
303 Redbud Way 
Nevada City,  CA 95959 
(530) 401-8024 
 <http://www.berkeleysolar.com/> www.berkeleysolar.com  
 

  _____  

From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Allan
Sindelar
Sent: Wednesday, July 21, 2010 3:17 PM
To: re-wrenches at lists.re-wrenches.org
Subject: Re: [RE-wrenches] Propane Generator, Dual Outback Inverters


The Onan RS20000 shown in the generators article in HP 131 page 98 has
performed flawlessly as backup support to an Outback quad-stack of VFX3648s.
Differences, however, are that this 20kW gennie charges four inverters,
rather than two; the elevation is 6,600 feet for about a 20% output
deration; there are no huge loads above charging draw; and the client is
aware enough to shut it off before absorption reduces the charge rate - all
different conditions than you have described, as the gennie is usually fully
loaded and running in balance.

Darryl is right about the amount of words necessary.



Allan Sindelar
 <mailto:Allan at positiveenergysolar.com> Allan at positiveenergysolar.com
NABCEP Certified Photovoltaic Installer
EE98J Journeyman Electrician
Positive Energy, Inc.
3201 Calle Marie
Santa Fe, New Mexico 87507
505 424-1112
www.positiveenergysolar.com <http://www.positiveenergysolar.com/> 

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