Hi William, I have had good luck with the Tigo TS4-AF. Although it does require a 12VDC power supply for it's RSD transmitter, Outback, Sol Ark and Schnieder have a straight forward integration not requiring dependency of AC output from inverter.
Best, Chris On Mon, Jan 31, 2022 at 12:57 PM William Miller <will...@millersolar.com> wrote: > Friends: > > > > It is quite rare for us to install off-grid systems on roof-tops. We have > one coming up with about 20kW on a large barn roof. This will be our first > off-grid with a module-level rapid shutdown requirement. I see no > exemptions from RSS for off-grid systems in the code. I have looked at the > options and this is what I have found: > > > > 1. Fire Raptor > > 2. Tigo TS4-F > > 3. AC coupling with micro-inverters or optimizers > > > > No one of these approaches seems ideal. The fire raptor requires extra > wiring for control leads. The Tigo requires a wireless control system > which worries me about reliability. With AC Coupling systems floating the > proposed AGM batteries may be awkward. Furthermore, with AC coupled > systems one cannot charge batteries unless the mini-grid is operational, a > big problem. > > > > Have any of you implemented module-level RSS on a battery-based inverter > system? I looked in the archives and found no threads that apply. Thank > in advance. > > > > 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 > >
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