http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=41981&item=5915575111&rd=1&ssPageName=WDVW
While I am not a fan of this inverter and it will have no warrenty since advance energy is out of business , this might be a good cheap backup for those of us who use grid-tie and would like power in the case of no grid power (like hurricanes
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Beacon Power now makes a modifed version of this (M5) and they might have support or upgrade options but you should call to make sure
The price for a new-in-box , 5kW grid-tie with backup ability for 760 bucks is less than a cost of a similar powered gas generator ...