[RE-wrenches] Battery based grid tie question.

[ryan at solar4maine.com]

Another good option is the xantrex XW it has 2 inputs one for the grid and one for the Generator then you can sell the sw's. we have had good succes on ebay selling the sw's. And you are correct the wind or sun or whatever brings the battery voltage to a certain point will trigger the inverter to sell. 
The XW also will give you 120/240 volts right out of the box so you can back up certain loads like a 240 volt well pump.
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