Tom,
I may be mistaken, but if I understood you correctly you have missed something. The Radian is available only in 48v, so four 12V 200 Ah batteries is eight kilowatt-hours of storage to 80% maximum DoD. Yes, it's small (my off grid home has 26 kW) but one or two strings may be adequate, depending on the customer's application and needs.
Allan

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On 1/19/2014 6:12 PM, Tom Duffy wrote:

Hi Chris

 

For an off grid system a 200AH 12 volt battery is rather small without resorting to parallel strings.

 

Three strings is only 600AH which is still on the small side, so one might ask why the 8K inverter?

 

The OutBack cabinet is fine for a back-up grid-tied system, not really a full off grid house

 

Without starting a big discussion, I would stick to a single series string sized to the load for three days autonomy.

 

200AH is usually a rather small weekend cabin and 600AH would be a smaller medium sized house.

 

Kind regards

 

Tom Duffy

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From: [email protected] [mailto:[email protected]] On Behalf Of Chris Mason
Sent: Saturday, January 18, 2014 6:16 PM
To: RE-wrenches
Subject: [RE-wrenches] Outback 200 RE

 

We don't do a lot of off-grid systems so I am short on experience with battery systems. I have a 8KW Radian system for which I am considering Rolls Surrette or Outback 200RE AGM batteries. I know people like the Surrettes, what is the experience with the outback battery system? 

 

--
Chris Mason

 



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