Thanks Mac. Yeah, Tigo was my first choice but then a search turned up this product, the FireRaptor <https://www.solar-electric.com/outback-power-obfrs-01-fireraptor-rapid-shutdown.html?gclid=EAIaIQobChMIzdXL_MLx5AIVFBx9Ch01vQSsEAkYASABEgIWpvD_BwE> . Funny name and something I haven't heard a lot about but it does allow for a 2:1 ratio so could help save on costs. But I'm wary to be a guinea pig for unproven tech.
These new rules, while having good intentions, are seriously impacting off grid designs where most sites, like you mentioned, are *way* far away from the nearest fire department. So, kind of pointless in my opinion. But I don't make the rules... On Fri, Sep 27, 2019 at 10:37 AM Mac Lewis <maclew...@gmail.com> wrote: > Hi Loren, > > We try to stay off the roof for off-grid in Colorado but I'm about to do > an 8 panel, 2 string system because of a building code where this cabin is > located. > I talked with Tigo about it and the parts list is: > > 8 x's Tigo TS4-A-F for each module > 1 x's Tigo RSS > > The RSS will signal the TS4s to shutdown if power is lost to the RSS. > Included in the RSS box is a 120 Vac to 12Vdc out power supply. However, > since the RSS is 12 vdc (max of 1A) I'm getting a buck converter to power > this so the inverter can be turned off in the winter time when the cabin is > unoccupied. The cost isn't too bad. > > I'll be honest though, I think this is a terrible idea. Any communication > box that can shut off charge to the batteries over winter at an unoccupied > site is asking for trouble. A communication glitch and the batteries will > be dead. This site is about 2 hours from the closest fire department so > there is nothing to be gained from adding this equipment other than passing > inspection. > > On Fri, Sep 27, 2019 at 11:24 AM Lorenzo Ortiz <lore...@cal-solar.com> > wrote: > >> Wrenches, >> >> Are any of you looking ahead at solutions for module level rapid shutdown >> for off grid? Here in CA it's being implemented next year (at least in my >> area) and I haven't found any reliable, proven, *cost-effective* >> products yet. >> I know Tigo has some sort of inline component but haven't heard a lot >> about it. >> >> Any input is appreciated. >> >> Thanks >> >> -- >> >> Loren Ortiz >> Technical PV Design Specialist - Commercial/Residential/Off-Grid >> >> lo...@cal-solar.com californiasolarco.com >> >> *Main: 530-274-3671 ext: 311 * *Fax: 530-274-7518* >> >> >> >> >> >> <https://californiasolarco.com/referral_form/> >> *Showroom located at: 149 E Main St. Grass Valley, CA 95945* >> _______________________________________________ >> 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 >> >> > > -- > > > > Mac Lewis > > *"Yo solo sé que no sé nada." -Sócrates* > _______________________________________________ > 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 > > -- Loren Ortiz Technical PV Design Specialist - Commercial/Residential/Off-Grid lo...@cal-solar.com californiasolarco.com *Main: 530-274-3671 ext: 311 * *Fax: 530-274-7518* -- <https://californiasolarco.com/referral_form/> *Showroom located at: 149 E Main St. Grass Valley, CA 95945*
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