Hello Wrenches,, We have been asked to take an SMA Sunny Island System that is off-grid, and convert it to a backup system (Quad stack). Currently, this is a DC coupled system using Midnite charge controllers. We would like to add SMA grid-tied inverters to backfeed excess power. I have located this document: https://files.sma.de/dl/7910/SB-OffGrid-TI-US-en-19.pdf
According to this document, there really isn't Sunny Boy inverters available that can function as a backup for a system like this. Is this true? Do you know of any distributors that may have stock of the SB XXXXTLUS-12 line of inverters that would work for this. Thanks for your assistance -- Mac Lewis *"Yo solo sé que no sé nada." -Sócrates*
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