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Thank you. This little two-pin connector labeled CN6 circled in red, right? Looks like a XHB 2.54mm connector?

I had a "dark start" this morning with my MIN (v2)/RESU 10hp because I accidentally had the battery disconnected before a grid outage. I tried a 9V battery on battery com enable+/enable- but it didn't seem to do anything. So instead I removed my car battery and jumped the TIGO transmitter (it...

Sorry for the delay. I decreased Under Frequency Loading Point to be symmetric with the FrequencyHighDerate point, and since then the drops are nearly all gone and I have not seen a single derating mode > 0 all week, even with the daytime high breaking 100f. I also added back AFCI about a week...

There was a DeratingMode: 20 at that time, and although output was already low due to shade at that time, the debug field would suggest it was derated to 973W at that time.

I'll disable high and low frequency tomorrow. I was also able to install solar assistant and it does report grid frequency more precisely:

OK so yesterday I disconnected the battery at around 8AM. Then I spoke to Growatt tech support. They changed my FrequencyHighDerate settings remotely and explained that both DeratingMode 4 and 20 are frequency related. DeratingMode 4 disappeared after the change, but 20 persists. I suspect...

OK I may try that too. I found some data from January, and although it's hard to tell because I had Export Limit enabled and there was more shade, it does seem to have been a problem then as well.

Yesterday I disabled AFCI, changed the grid code from Rule 21 to IEEE and modified the FreqHighDerate: Point=60.05Hz and Slope=100%. Results below, problem persists. I found in the debug2 field what I suspect is the derated power, since it's normally 11400 (nominal power of the inverter) and...

Yes the ATS has a transformer it's ATS11400T-US. The transformer is after the ATS backup input. However, the transformer is still in use even when powered by grid. Bonding N to Ground in the critical load panel as the ATS does not have a Neutral input, so otherwise the Neutral output is...

Thank you both for your generous and expert help. > Do you have a multimeter? Maybe you could measure your frequency for a couple of minutes and see if you see any fluctuations. Yes, great idea. Will test later. > Where are you seeing the derating mode at? Can you send a screenshot? It's...

Looks like there's a separate setting for FrequencyHigh* and Under Frequency*. I just changed the settings for FrequencyHigh. Does it look right?

Thanks for your help, 1201. I have the installer login if that's what you mean. I'll update tomorrow with the results from disabling AFCI.

> I don't think it's all that accurate. Solar assistant shows 60hz across the board(pulling from growatt inverter) but the actual frequency varies a lot when I measurevut a different way. Good to know, thank you. Is there a better way to measure it over time? > Did you try ieee1547? Yes, it...

Fac measured using the Growatt Shinephone website, "History Data" function. Which I suspect is register 37 on mobdus. https://www.amosplanet.org/wp-content/uploads/2022/12/%E9%80%9A%E4%BF%A1%E5%8D%8F%E8%AE%AEMAX_Growatt-Inverter-Modbus-RTU-Protocol_II-V1_13_20190116-English.pdf

Vac1 is interesting...

Good idea. But Fac was 60 the entire day except for one measurement at 59.9 and it's not near any of the power drops. Maybe SolarAssistant will provide more precision? I will try IEEE

There are regularly large drops in power throughout the day. PV current drops, but PV voltage remains high. Confirmed by video recording that there are no clouds. Specifically at 3:27PM when power dropped the most. The power loss is weakly correlated with derating mode 4 (Fac) and derating...

Sorry I didn't realize there would be so much activity on this thread. Yes it has backup outputs and they are connected to my ATS. Yes, thank you for asking in @SignatureSolarJess . They say they can't send me a V2 inverter because they only have V3. But they did offer a refund which is a...

I have a MIN 1400TL-XH-US and an ATS-11400-US purchased from Signature Solar. The inverter refuses to supply power to the ATS. When grid disconnects, it enters standby mode with warning code 300 (no utility) or 607 (abnormal communication with off-grid box). No voltage on the backup terminals...

It's a good q. I suspect the problem is that there can be arcing at normal operating current s.t. the fuse would not open the circuit.

try swapping enable + and enable -. I also suspect the "DC switch" on the inverter needs to be closed

Had a very productive call with Growatt Tech support today. They figured out that the RJ45 pinout Enable+ and Enable- are swapped in the manual pdf I found online vs the physical copy that came with the device.

I have 217(02) with my MIN 11400TL-XH-US and my LG RESU10H Prime. Very much stuck here.

Thank ou. I found some interesting discussion on this topic in the Tesla support forum. https://teslamotorsclub.com/tmc/threads/does-tesla-ever-install-solar-powerwall-systems-using-line-side-tap-in-california-with-pg-e.235590/

Is it correct that a SA inverter without batteries can be stuck in rapid-shutdown during grid power outage until grid power is restored to the CCA? Except as long as PV power is available to the CCA when the grid power outage begins? E.g. 1. Daytime grid outage. PV power continues 2. Night...

Thank you, that's really helpful. I didn't realize I could take a detour out of the enclosure between the meter base and the breakers. I think I'll do something similar. Any issues/tips for making changes to the utility-sealed side of the meter/main?

Is this right? (E) Meter base -> (N) 200A Fused Disconnect -> (N) Sol-Ark -> (E) Panel main breaker/disconnect In that case, did you connect 2" conduit from the Meter/main out to the disconnect, and 2" conduit from the Sol-Ark to the Meter/main?

Would appreciate some critical feedback before I submit this to PGE. A few questions that come to mind: Is the Sol-Ark 15k oversized for 13.6kW? I like the 200A load and whole house backup. Sol-Ark 12k might work but it's gonna be harder with my meter/main which is obsolete and only has 2...

Just talked to Sol-Ark engineering who agree that the conductors between the tap and the grid should be rated for 400A in diagram 7 of the manual. Alternatively the 200A fuse could be placed between the tap and the meter.

Assuming the service conductors (and meter) weren't over-sized, aren't they unprotected from over-current in this design? 300A = 100A (tap) + 200A (MSP). Was the Line-Side tap approved for inverters that only feed-back but never draw from the grid? Is it still valid for hybrid inverters like...

Yes that's right. Excellent, thank you

You're right about the LVX6048 but not the LVX6048WP which supports grid export https://diysolarforum.com/threads/new-all-in-one-mpp-lvx6048wp-ul-certified.23505/post-281226 Can I change my inverter next year after getting Permission to Operate from PGE and remain grandfathered under NEM 2.0?

Well CEC lists the Sol-Ark as "Inverter with PCS functionality". So I suppose the answer would be Power Control System. I am tempted to save $ and use a MPP Solar LVX6048WP instead of the Sol-Ark 15k. But it's not in the list of approved inverters despite being UL 1741 SA since March 2022...

Thanks everyone. I like the idea of just now answering the question. But if I were to answer, and I were using a Solark 15K, then what would I select for "How to limit export?". Relay is obviously not the one. But between "power control system" vs "derated inverter" I don't know. I tried...

I'm planning a DIY grid-tie roof-top solar power system with battery backup. I'm trying to apply for interconnection ASAP so I can secure NEM 2.0 before the deadline. I'm exploring the PGE interconnection application form and I cannot answer the following question: "How do you plan to limit...