One thing I would do is to add an automatic transfer switch to prevent this from happening again.
jay > On Jun 18, 2025, at 1:30 PM, Matt Sherald via RE-wrenches > <re-wrenches@lists.re-wrenches.org> wrote: > > I did look at those historical events. Not a thing there. > > I agree that the list is a bit hidden. > > -Matt > > On Wed, Jun 18, 2025 at 3:27 PM Dave Angelini Offgrid Solar via RE-wrenches > <re-wrenches@lists.re-wrenches.org > <mailto:re-wrenches@lists.re-wrenches.org>> wrote: >> I would say did you look at historical events? It is easy to miss that and >> you only see current events. Is there surge protection on all the usual >> places? Not a fan of AC coupling XW. Good Luck! >> >> <96439eaf.jpeg> >> >> >> >> Dave Angelini Offgrid Solar >> "we go where powerlines don't" >> <http://members.sti.net/offgridsolar/>https://offgridsolar1.com/ >> <http://members.sti.net/offgridsolar/> >> e-mail offgridso...@sti.net <mailto:offgridso...@sti.net> >> text 209 813 0060 >> >> >> On 2025-06-18 12:12 pm, Matt Sherald via RE-wrenches wrote: >> >>> Hi All, >>> >>> I'm writing to ask if anyone else might have run into a similar situation. >>> My customer came home to dead circuits after being out of town for several >>> weeks. They are grid-tied and have a BBUS with an XW Pro. Their PV array >>> is AC-coupled (Enphase IQ7+). >>> >>> When they arrived home all of the critical load circuits were dead. The >>> other circuits were working fine. The internet router was dead. >>> I got called and made a visit. The XW was not feeding AC through to the >>> loads and it was not charging the batteries. >>> >>> Two battery status lights on the XW were illuminated. A value "279" was >>> displayed. The small LED next to the "A" for charging was illuminated. >>> No other green LED was on - no AC1, no AC2, no Event, no Equalize . The >>> batteries had been discharged, but were well above the LBCO. I tested the >>> grid and it was 60Hz with 240V. All good there. >>> >>> There is no SCP. This is one of the early installs with a Gateway and I >>> did not have computer stuff to get a look at any codes or other status >>> info. >>> >>> Perplexed, and a bit frustrated, I turned off the main DC 250A breaker and >>> let it sit for a couple of minutes. Then I turned the breaker back on and >>> the XW worked just as one would hope - the grid connected through AC1 and, >>> in turn, powered the critical loads and began charging the battery. >>> >>> I thought that I would be able to find some answers once things were back >>> online and I got home to the office where I could look at Insight and >>> Enlighten. Looking at the Enlighten data I could see that production had >>> ceased ten days prior to my visit. >>> >>> Insight has no recorded Alarms/Warnings/Events for this time period. >>> The XW load and battery discharging data show very little draw throughout >>> the period which makes me believe the AC loads were not powered and the >>> battery drain was attributable to idle consumption of the XW, Gateway and >>> Battery Monitor. >>> >>> >>> A series of thunderstorms coincided with the loss of data reporting. The >>> neighbors, when asked, offered that they had lost an internet router to the >>> same storms. They said that they didn't recall a power outage, but their >>> router was cooked and their PV system (Enphase) had stopped working >>> requiring them to contact tech support. >>> >>> My gut is that a surge on the Gateway's CAT cable triggered the XW's relays >>> to open and stay open. The system seems to be working just fine now and >>> doesn't appear to have suffered lasting damage. Not so for the venison in >>> the freezer. >>> >>> I'd love to hear from anyone who may have had a similar experience with the >>> XW or who feels like they have a fair guess as to what caused the problem. >>> >>> -Matt >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> -- >>> Matt Sherald >>> PIMBY Energy, LLC >>> >>> 304-704-5943 >>> >>> _______________________________________________ >>> List sponsored by Redwood Alliance >>> >>> Pay optional member dues here: http://re-wrenches.org >>> <http://re-wrenches.org/> >>> >>> List Address: RE-wrenches@lists.re-wrenches.org >>> <mailto: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 <http://www.members.re-wrenches.org/> >>> >> _______________________________________________ >> List sponsored by Redwood Alliance >> >> Pay optional member dues here: http://re-wrenches.org >> <http://re-wrenches.org/> >> >> List Address: RE-wrenches@lists.re-wrenches.org >> <mailto: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 <http://www.members.re-wrenches.org/> >> > > > > -- > Matt Sherald > PIMBY Energy, LLC > 304-704-5943 > > > _______________________________________________ > 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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