external chargers for Outback [RE-wrenches]

[Todd Cory, Mt. Shasta Energy Services]

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I think this is why many people (amazingly including me) are giving the 
Xantrex XW a serious look. Outback's stubborn refusal to include two AC 
inputs on their grid tied inverter is a major wart and caused me to 
become quite disappointed with them. The best work around is running the 
genny output through a 2:1 step down transformer, rectifying it and 
dumping that into a MX60.

Todd



Bruce Erickson wrote:

>
>
> Hello All,
>
> What have people used/been happy with when you need a large external  
> charger for a grid-tied Outback system? We installed an IBE  24GPU70  
> to generator charge 2 strings of 390 ah Trojans, and the thing seems  
> to be very inefficient. Looking over the IBE sizing chart and  
> comparing AC kw required for various continuous DC outputs, the  
> efficiency seems to be in the 50-60% range, which is about what we  
> observed in our system. Is there anything else out there that can  
> deliver around 100 amps DC with reasonable efficiency and reliability?
>
> Bruce Erickson
> Mendocino Solar Service
> PO Box 1252
> Mendocino, CA 95460
> 707-937-1701


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