> Does anyone have any idea on what "backup unit from 3rd party vendors" may > be available?
If I was to venture a quick guess I would say the LG Chem RESU10 battery is at least one possible option for this partnership. https://www.energy-storage.news/news/sma-and-lg-chem-partner-on-battery-inverter-storage-solution -- Sam Haraldson, Installation Manager Office: 406.551.6135 Cell: 406.249.6841 s...@onsiteenergyinc.com onsiteenergyinc.com _______________________________________________ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org