Hi Howie, I haven't done a Fortress paired with a Sunny Island, but I have done a large Blue Ion battery bank work a quad stack of Sunny Islands. You can use the Namaka box to aggregate battery bank data and select "external Li-ion BMS" and it will convey state of charge to the Sunny Island.
Seems to work well. We ran it without the Namaka box for a while, and the Sunny Island SOC algorithm really couldn't effectively track the state of charge of the Blue Ion batteries. I suspect, unless Fortress has a way to "talk" to the Sunny Islands, you would struggle with programming the Sunny Island to properly track the state of charge. This really comes up with off grid sites where you are counting on starting a generator at the proper time. Let us know what you decide to do. Thanks On Thu, Sep 1, 2022, 11:11 AM Howie Michaelson via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Has anyone put Fortress batteries into a Sunny Island off grid system, > either an E flex or an E vault? I have a client with older 2 volt Rolls > batteries that need replacing. Currently about 55 kwhs. Or any experience > with other LiFEPO4 batteries with Sunny Island off grid systems? > Thanks > Howie > Sin barber > _______________________________________________ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > 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 > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > >
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