I didn’t say it did. 3 options. The OEM are selling a product that isnt code complaint, doubtful. Or it is included in the UL listing or there isn’t a UL standard for this to test to.
I don’t have time but a call to the companies that list this feature would clear it up. Jay Peltz power. > On Mar 31, 2021, at 10:56 AM, Jason Szumlanski > <[email protected]> wrote: > > > Does UL1741 cover zero sell? I wasn't aware of that. I thought it just > covered anti-islanding. If zero sell is covered, I don't see why a utility > would not accept that. > >> On Wed, Mar 31, 2021, 11:51 AM Jay <[email protected]> wrote: >> A number of companies have this feature which is under their UL listing. >> SE >> SolArk >> To name 2. >> >> Are you saying that the UL listing isn’t enough and that it needs 3rd party >> testing. >> If so what organization/testing would that be? >> >> Jay >> Peltz power >> >>>> On Mar 31, 2021, at 8:27 AM, Jason Szumlanski >>>> <[email protected]> wrote: >>>> >>> >>> I wonder how quick these software based approaches are to respond to loads >>> that drop off and momentary selling that may occur before production is >>> curtailed. I think what Greg may be asking is whether there is a failsafe >>> method to prevent backfeed. Without a battery, I'm not sure how that would >>> be accomplished. It's an interesting question. >>> >>> I can see a small utility not accepting a non-failsafe software based >>> solution unless it can be shown to be 100% effective via third party >>> listing/certification. >>> >>> Jason Szumlanski >>> Florida Solar Design Group >>> >>>> On Wed, Mar 31, 2021, 7:29 AM Will White <[email protected]> wrote: >>>> Many inverters have the option to zero-sell (no export to the grid) but >>>> you need an additional CT on the main service conductors so the inverter >>>> can monitor the loads and ramp down production if it starts to get close >>>> to producing more than the loads require. >>>> >>>> I'd suggest getting into the manuals and white papers of the inverter >>>> manufacturers to determine if they can do this. I believe both SolarEdge >>>> and Enphase can do it. I'd assume others can as well. >>>> >>>> Thanks, >>>> Will >>>> >>>> >>>> -- >>>> Will White >>>> Curriculum Developer >>>> >>>> >>>> e: [email protected] >>>> w: www.solarenergy.org >>>> p: 802-272-3092 >>>> >>>> NABCEP Certified PV Installation Professional >>>> # 093006-34 >>>> Do you envision a world powered by renewable energy? Be the change. >>>> >>>> >>>>> On Tue, Mar 30, 2021 at 9:24 PM greg egan <[email protected]> wrote: >>>>> Wrenches, I've got a small system using SolarEdge inverter (4 kW) that >>>>> is supposed to go in to a small town that does not allow selling power >>>>> to the grid. That may change but that is how it stands now. The >>>>> customer wants to use the power that is generated but can not sell or >>>>> even give excess power away. Do any of you have any experience setting >>>>> up a grid tie no battery system so that it can not sell to the grid >>>>> under any circumstances? Just wondering before I dig any deeper if >>>>> there's an obvious solution I'm missing. Thanks, >>>>> >>>>> Greg Egan >>>>> Remote Power Inc. >>>>> >>>>> >>>>> >>>>> _______________________________________________ >>> _______________________________________________ >>> List sponsored by Redwood Alliance >>> >>> 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 >>> >> _______________________________________________ >> List sponsored by Redwood Alliance >> >> 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 >> > _______________________________________________ > List sponsored by Redwood Alliance > > 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 >
_______________________________________________ List sponsored by Redwood Alliance 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
