[RE-wrenches] RE-wrenches Digest, Vol 9, Issue 129

Drake drake.chamberlin at redwoodalliance.org
Fri Apr 29 07:24:08 PDT 2016


Hi Travis,

Can you recommend a good supplier for the Onan RV #HGJAB units?

Thanks,

Drake





At 10:59 PM 4/28/2016, Jordan Solar Sales wrote:

>For off-grid generators I have found that the Onan propane RV units 
>like model #HGJAB are a great unit. (Onan is owned by Cummins, same 
>units as Cummins Commercial series I believe) These are only 6500 
>watt units but they are low RPM, very quiet, fuel efficient, and 
>start great in cold temps. (the 5500 watt model is the same unit but 
>runs lower rpm=lower power) they do need an external battery and 
>charger (and battery cables...) and you have to build a stand to set them on.
>
>We sometimes have to "oversize" generators just so the customer can 
>run large loads while the batteries are charging, which leads to the 
>need for the 10kw (or bigger) generators. I have not found a good 
>option for these either. In my opinion, these big gennys are very 
>inefficient at battery charging, cost a lot, are hard to start, 
>difficult to service/replace, and come with all the electronics 
>issues mentioned earlier. I find if I can educate the customer to 
>wait to run big loads until after the initial bulk charge cycle they 
>can often get by on the 6500 watt unit and they are happier in the 
>long run. If I can't win on this, I try to get them buy their own 
>genny so it is their problem!
>
>I wish we had a decent AC coupled generator option!
>
>Travis Jordan
><mailto:travis at jordansolar.net>travis at jordansolar.net
><mailto:travis at mtsolar.us>travis at mtsolar.us
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