Thanks Jason and Scott, Jason is correct. The IQ system uses line to line PLC, whereas the M-Series microinverter communications were line to neutral. Most of the noisy loads (like magnetic ballasts, touch lamps, etc) are 120V line to neutral loads. For that reason, we see very few communication issues with the IQ microinverters.
Also, the widespread adoption of combiner boxes has had a huge effect on improving communications. @scot.a...@solarcentex.com<mailto:scot.a...@solarcentex.com>, can you confirm that this site is using a combiner box. Keeping the microinverter and Envoy circuits separate from the other house loads is critical to ensuring good communications. We also have a power line filter product (Q-LCF-064-1P) that can be installed between the combiner and the main panel in the rare instances there are poor comms. That filter is very robust and has been designed to filter noise and signals in the 110kHz IQ microinverter communication frequency. Cordially, Nick Soleil Enphase Energy Senior Product Manager (707) 763-4784 x7267 // office (707) 321-2937 // cell Powering What’s Next™ | The Enphase Energy Management System<https://enphase.com/en-us/products-and-services/envoy> NABCEP Certified Solar PV Installer #03262011-300 California C10 Licensed Electrician #986315 ________________________________ From: RE-wrenches <re-wrenches-boun...@lists.re-wrenches.org> on behalf of Jason Szumlanski <ja...@floridasolardesigngroup.com> Sent: Friday, October 16, 2020 4:21 AM To: RE-wrenches <re-wrenches@lists.re-wrenches.org> Subject: Re: [RE-wrenches] Enphase noise interference to reporting; use ferrites EXTERNAL EMAIL - Use caution when responding, clicking, and/or downloading attachments. True, but this is MUCH less of a problem with IQ compared to M-Series. I just installed 212 IQ micros on a building with 268 existing M-Series. The M-series required ferrite rings and the IQ worked flawlessly without any filtering (although it took about 3 hours for all of the IQ micros to initially come alive initially). This is a grocery with a lot of noise / motor loads. Jason On Thu, Oct 15, 2020 at 6:46 PM Jerry Shafer <jerrysgarag...@gmail.com<mailto:jerrysgarag...@gmail.com>> wrote: Wrenches Noise in the AC circuits and Enphase is nothing new, when they adapted the new frequency this was in part to get away from the noise so it sounds like they still have a problem. I have seen a variety of new products effect the data stream. Jerry On Thu, Oct 15, 2020, 2:37 PM <scot.a...@solarcentex.com<mailto:scot.a...@solarcentex.com>> wrote: We have a 53 IQ7 microinverter system on new-build construction that reported and performed just great until the homeowner (a custom builder, and one I’m trying not to unimpress!) moved in Sept 1 at which point reporting went wonkers with inconsistent data, perceived underperformance that seemed to shift through the array. All the stuff that makes troubleshooting a nightmare. Enphase tech support level 1 was great and immediately pointed to a noise issue and she had a level 2 tech check and confirm that. She recommended I get it on wifi (was on cell comms until the owner moved in) so I could get near real time reporting, then to go through the pump circuits to see what is making the noise and when I identify it to use ferrite loops to reduce the noise on those circuits. Relatively new to Enphase since they brought on IQ7 and this is first PLC comms issue I’ve had to date. IQ7+ has been rock-solid for us. Anybody have any experience with this noise and interference and recommendation on ferrite installation? [X] _______________________________________________ List sponsored by Redwood Alliance 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<https://mailtrack.io/trace/link/be0daddcb3da310c6d149286df107b92271c4ad3?url=http%3A%2F%2Flists.re-wrenches.org%2Foptions.cgi%2Fre-wrenches-re-wrenches.org&userId=1613865&signature=767836d954f9fdfa> There are two list archives for searching. 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