[RE-wrenches] Off-grid generator update?

[Dana]

For the heater on the intake pipe issue we only run the heater off the generator output to keep the intake breather from icing up while running. You may need to a bit of rewiring.

 

Have you looked at SW products [They bought Hardy Diesel] T - 480 625 5195?

 

They still have 12KW water cooled with Ford engines.

 

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Dana Orzel 

Great Solar Works, Inc -  NABCEP # 051112-136

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From: RE-wrenches [mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Lena Wilensky
Sent: Thursday, April 28, 2016 10:19 AM
To: RE-wrenches at lists.re-wrenches.org
Subject: [RE-wrenches] Off-grid generator update?

 

I did some searches on the list for what folks are doing for off-grid propane generators these days, but all the threads I found were from 5-6 yrs ago, so I was hoping to get some more current info.

 

We're looking for about a 10kw+ propane unit (big derate at altitude), and we run into 2 main problem areas:

 

First is the warranty - either there are no units warranteed for off-grid use, or there are only a couple of models and the warranty is short (1 year).

 

Second, and perhaps larger, is all the loads that now come with the "off-grid" units.  The computer takes some, but mostly the "cold weather kit" aka carb heater must be installed in our climate (to actually start, but also for warrantee), and it's set up to be on a thermostat (read: "on all the time from Nov-April" here in the mountains).  According to the Kohler tech support it takes a steady 50W. We have set up older units to do battery charge only during the day, and have the carb heater on a manual switch, but it sounds like we can't really get at these circuits anymore since they're all pre-configured and pre-wired in the guts of the genset computer.

 

The Kohler and Onan support folks said both these issues are due to EPA considering off-grid use as prime power as opposed to standby, so they are held to tougher emissions standards.

 

Whatever the reasons, we're wondering what people are actually doing these days - still the standby units they kind-of warrantee for off-grid? 12RES from Kohler and the 13kw unit from Onan?  Generac?  Have folks been going back to the smaller gas units from Honda and running them more?  And how are cold climate folks dealing with the heating issue?

 

Any suggestions appreciated!




Lena Wilensky
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