MiJo, I’m feeding the transfer switch/backup panel via the Sol-Ark’s load output. This is a net metering application with select loads backed up.
Chris Mason was able to help resolve my issue. Generac offers a kit to convert my customer’s particular generator to a 2 wire start. rick brown SolShine Energy Alternatives, LLC Electrical & Solar Contracting Services www.SolShineEnergy.com Check, Virginia 24072 O: 540.235.3095 M: 540.808.9502 VA Class A Contractor Lic# 2705147660 VA Master Electrician Lic# 2710062762 VA Alternative Energy Systems Installer NABCEP Certified PV Installation Professional 110112-21 > On Jun 17, 2021, at 8:41 PM, MiJo Nels <spaceshipnels...@gmail.com> wrote: > > Hey Rick, are your loads in this scenario not all behind the SolArk (and > already capable of all no-back feed scenarios including zero export?) > > Sent via the Samsung Galaxy S21 5G, an AT&T 5G smartphone > Get Outlook for Android > > From: MiJo Nels <spaceshipnels...@gmail.com> > Sent: Thursday, June 17, 2021 5:38:36 PM > To: RE-wrenches <re-wrenches@lists.re-wrenches.org> > Subject: Re: [RE-wrenches] Sol-Ark 12k w/ Generac Transfer Switch > > We have started doing away with the ATS all together. Generac recently > released a FW code you can enter to indicate to the generator you want it to > Start/Stop with 2-wire configuration. A generator that size I would feed > directly into the SolArk and let the SolArk Start/Stop function. This will > increase the "Up Time" of the inverter as it will always have a secondary > power source it can call on when there's a low SOC. > > Sent via the Samsung Galaxy S21 5G, an AT&T 5G smartphone > Get Outlook for Android > > From: RE-wrenches <re-wrenches-boun...@lists.re-wrenches.org> on behalf of > William Miller <will...@millersolar.com> > Sent: Thursday, June 17, 2021 9:11:30 AM > To: RE-wrenches <re-wrenches@lists.re-wrenches.org> > Subject: Re: [RE-wrenches] Sol-Ark 12k w/ Generac Transfer Switch > > Friends: > > I dislike jury-rigging a generator loss-of-grid start signal to a two-wire > start. If the inverters need to be shut down for service or happen to shut > down on their own, the generator will start. Not a good design. > > William Miller > www.millersolar.com > >> On Jun 17, 2021, at 6:48 AM, Dave Tedeyan <d...@sungineersolar.com> wrote: >> >> Hi Rick, >> I have a similar situation with a GE transfer switch, but am curious to hear >> what others have to say. My assumption was that the switch transfers based >> on loss of 240V from the grid. But I believe (at least with the GE >> generator) that the transfer switch sends a two wire start signal to the >> inverter when the transfer switch loses the 240V signal. My plan was to >> rewire that start signal to the Sol-Ark inverter, but keep the transfer >> switch as the main service point to prevent any kind of backfeeding to the >> grid. >> Cheers, >> Dave >> >> On Thu, Jun 17, 2021 at 9:41 AM r...@solshineenergy.com >> <r...@solshineenergy.com> wrote: >> Wrenches, >> >> I’m looking to tie in a Generac Powerpact 7.5kW generator with transfer >> switch to a Sol-Ark 12kW. The Sol-Ark has a two wire start (NO or NC) >> capability, however, the Generac transfer switch operates on loss of 240V. >> Is my only option to use a relay driven by the two wire start to drop 240V >> to the transfer switch? >> >> Thank you, >> >> rick brown >> SolShine Energy Alternatives, LLC >> Electrical & Solar Contracting Services >> www.SolShineEnergy.com >> Check, Virginia 24072 >> Office: 540.235.3095 >> Mobile: 540.808.9502 >> >> VA Class A Contractor Lic# 2705147660 >> VA Master Electrician Lic# 2710062762 >> VA Alternative Energy Systems Installer >> NABCEP Certified PV Installation Professional 110112-21 >> >> <PastedGraphic-1.tiff> >> >> _______________________________________________ >> 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 >> >> >> >> -- >> Dave Tedeyan, PE >> >> 1653 Slaterville Road, Ithaca, NY 14850 >> Cell: 607-288-2898 >> www.sungineersolar.com >> _______________________________________________ >> 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
