[RE-wrenches] Back feeding battery inverter with grid-tie inverter

[boB Gudgel]

Chris Schaefer wrote:
> Also Robin at Midnight Solar has been promising to come out with a higher
> VOC charge controller too. How about it Robin? I'll be needed one for this
> spring for use at our Design and Training Center for use in a class. Be
> happy to do some Beta testing for you.
>
> Chris Schaefer
> Solar and Wind FX Inc.
> 5115 South Hill Road
> Canandaigua(Bristol Center) New York 14424
>   

Yes, this is true, Chris... Very soon now...    But for the moment, I 
would put the Sunny Boy at the inverter and
run the high voltage DC from the array to the Sunny Boy (or other 
suitable inverter) and then to the Islanding inverter.
This could be even a bit higher voltage than the AC if it's in the 300 
to 400 Volt range, AND it would be DC, which
I believe would be better than AC because of various reasons.

boB