[RE-wrenches] Grid-Connect Inverter with battery, AND auto backoff?

[max at southern-energy.com]

Troy,

I would try looking at the Sunny Island by SMA.  I have had good
experiences using them as part of a grid connected battery back up system. 
Though I haven't yet used it, they have a pretty intelligent load shedding
system through their programmable relays.  The main drawback is that it
puts out 120v but two SIs will sync together which will give you 240v and a
couple of more relays to work with.  Hope it helps.

Max Isaacs
Southern Energy Management

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