Hi Lars, It sounds like an issue with frequency shifting. I’m guessing that this is mostly happening when the battery is full. The Radian is shifting its frequency (to probably around 63-64 Hz) to turn of the AC coupled PV inverter. Some lights and electronics don’t like this and can either flicker, or turn off. This is one of the issues with AC coupling that makes it a less than ideal fit for off-grid application.
One option would be to look into replacing the lights with something that has a larger tolerante for change in frequency. Another option might be to lower the inverter’s grid frequency tolerance so that it trips and turns off before the flights end up freaking out. Hope this helps. -Chris On Wed, Feb 2, 2022 at 2:59 PM Lars Ortegren <[email protected]> wrote: > Wrenches, > I'm hoping to solve an issue we've had with a couple of our off grid AC > coupled systems. We have had multiple reports of different LED and > traditional ballasted fluorescent systems "flickering" during the day when > the AC systems are producing power. We havent had issues with other off > grid AC coupling using Sunny Islands, or even old VFX inverters, but this > does seem to be an issue directly related to the Radians.I'm wondering if > any of you have had experience with this, and if you found any hacks to > "clean up" the power? > > -- > Lars Örtegren > General Manager > Co-Founder > Worker-Owner > He/Him <https://www.mypronouns.org/> > <https://www.cal-solar.coop/> > 530 274 3671 | ext 307 <530+274+3671> > [email protected] > www.Cal-Solar.coop <https://www.cal-solar.coop/> > 149 E. Main St, Grass Valley, CA 95945 > <https://www.google.com/maps/search/149+E.+Main+St,+Grass+Valley,+CA+95945?entry=gmail&source=g> > NABCEP: #PVI-091110-89 > CSLB #779624 <https://www.cal-solar.coop/we-are-a-b-corp> > <https://www.amicussolar.com/> <https://www.nabcep.org/> > > <https://californiasolarco.com/quote/> > _______________________________________________ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: [email protected] > > 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/[email protected]/ > 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 > > -- Chris Sparadeo C_802-369-4458 H_802-728-3059
_______________________________________________ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: [email protected] 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/[email protected]/ 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
