Hi William, That’s an interesting idea to have close loop comms with two separate manufacturers at the same time. In theory I think this could work, but unfortunately, I don’t think SMA and Schneider share the same protocol # for the eVault. I believe SMA uses protocol #2 and Schneider uses #5.
Kindly, Chris On Tue, Oct 24, 2023 at 10:40 AM MDElectricSolar via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > I would tear all the sunny boys and sunny islands out and install two 15 > kW Sol-Arks, problem solved. DC coupled. I've done this several times now > for existing clients (mostly connected to the grid) but it is so much > cleaner and more compact and effective. > > Michael D Nelson > MD Electric & Solar, Inc. > 707-684-0064 mobile > 707-884-1862 office > www.mdelectricsolar.com > www.facebook.com/mdelectricandsolar > > > On Oct 24, 2023, at 7:31 AM, William Miller via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > > > > Friends: > > > > This situation is as yet unresolved. It is complicated enough I created a web > page > <https://millersolar.com/MillerSolar/case_studies/36_SIFortress/36_SunnyIslandFortressIntegration.html> > to describe the scenario so I did not have to explain it over and over. I > submitted this to Fortress tech support. They said they had likely not > tested the Fortress compatibility with SI in an AC-Coupled system. > > > > While Fortress technicians and/or engineers ponder the situation I am > brainstorming solutions. One idea is to convert to a DC coupled system. > DC Charge controllers will have intrinsically better voltage control. The > charge controller most likely suitable is the Schneider 600 volt 100 amp > unit. I would need two of them. It is compatible with the existing string > wiring. In researching it many questions came up about that product’s > suitability. There is an integration guide for a Schneider system and > Fortress but this would be a mixed system of Schneider and SMA. Would I be > able to apply closed loop communication to both systems? Could the charge > controllers work in open loop? Has anyone tried anything like this? > > > > I will keep you apprised. > > > > William Miller > > > > Miller Solar > > 17395 Oak Road, Atascadero, CA 93422 > > 805-438-5600 > > www.millersolar.com > > CA Lic. 773985 > > > > > _______________________________________________ > 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 > > _______________________________________________ > 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 > >
_______________________________________________ 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