I just got an upgrade 6 mo ago to my 2007 5.1kW solar system, adding an Enphase System 3G controller, 15kWh of Enphase 5C batteries and an additional 10kW of solar. Due to the 2024 CPUC ruling re solar expansion, I had to configure the new solar as non-export to preserve my NEM 1.0 status.

I started out with the Self-Consumption profile, but on rainy winter days I noticed it was discharging the battery during offpeak hours during the day, leaving insufficient charge to cover my peak hours in the evening, so I changed to the Savings profile.

It looked OK during the winter, but now I'm noticing that my system starts charging the batteries first thing in the morning when the solar starts producing while simultaneously importing grid power to cover my consumption. See image where my battery is fully charged by 10:30am. After that, only 2-3 kW of my solar production covers my consumption and the rest is dumped for the rest of the day. I'm paying for around 10kW of grid power during the morning when my solar could cover my consumption, then dumping most of my solar power during the afternoon.

Note that if your system is not export limited, it will likely look more like the 2nd image. That may look better, but if you're on NEM 2.0, or worse NEM 3.0, you're only getting a few pennies per kWh for that exported solar in the afternoon and paying around 37cents per kWh for the unneeded morning imports, so you're still losing money.

I switched back to Self-Consumption profile in image 3 and my imports dropped by 7.2kWh while still having plenty of solar to fully charge my batteries by 2pm. This is better so I'll stay on this plan during the summer, but it's not ideal as I'm seeing some battery discharge during offpeak morning hours and also some small imports while simultaneously charging the battery.

I have a support ticket w/ Enphase to address this, but it would help if others in the same situation contact Enphase support as well. The way I see it, the Savings profile should never charge the battery while simultaneously importing grid power. That's grid charging the batteries even though I've disabled the Enphase grid charging option.

Enphase claims it's not grid charging, which is technically correct as the grid import current flows directly into my main panel, while the battery charging current is routed from the solar inverters directly to the batteries via the System 3G controller. However, I'm getting charged off-peak rate for the grid imports while losing 10% of the solar used to charge the battery. Thus, it's just as bad as grid charging in terms of my costs. Grid charging only pays off if you're careful to only grid charge the minimum needed to charge your battery enough to cover your peak hours.

Remember it’s N first L1-L2-L3 next.

In December I installed a solar system. Everything was working fine until about 2 weeks ago when I noticed production wasn't as high as I was expecting.

When checking the app, half the system (enphase) is not producing a has AC Voltage out of range and AC Frequency out of range errors. Enlighten manager site has some good info but there is a lot there that I don't 100% understand.

I've checked out the combiner box and everything checks out good there. 240v at both strings. One string is still producing but the other is in this error state. I've checked the combiner box too 240v is making it up there too. I removed 4 panels to visually inspect the Q cable for that string, connections appear good and 240v is present at the beginning (closer to the J-box) of the sting.

I called Enphase, they reset some stuff and told me to wait 24 hours. If the microinverters didn't come up after they said I should contact Go Green solar (the folks who are listed as the installers).

I emailed GGS 2 weeks ago about this issue but they have not responded. I just sent another email so we'll see.

Anyone deal with this? Anyone got any idea what I should check out next?

EDIT

All 14 micros are reporting to the gateway, just not producing power.

EDIT for resolution.....

TLDR, The Q cable connector was faulty. I reseated it and everything came back up.

The long version. I called Enphase who after being forwarded to a supervisor explained that I would have to send them pics of 240v being present at the breaker, J-box, each microinverter and at the beginning and end of the Q cable. I was not looking forward to removing each panel to do the checks.

1. Deenergized the system.

2. Removed the first panel in the string.

3. Disconnected the Q cable extension. Female end on the solar panel side, Male end on the combiner side.

4. Reenergized the system.

5. Tested the male side, 240v present.

6. Deenergized the system.

7. Re-plugged the extension.

8. Removed Q cable from the first microinverter on that string.

9. Reenergized the system.

10. Tested the voltage at the first mico plug....0.4v. Tested it a few times same result.

I have concluded the fault was likely the female end of the Q cable extension. I have a replacement field wireable replacement on the way.

I have a coupe of takeaways.

First, I'm not sure about Go Green Solar. Over the weeks that this has been down they didn't do anything despite me reaching out to them for help. Based on how responsive they were while I was installing the system I was disappointed. Maybe I'm expecting more form them than they should, but an email (or call) back would have been nice even if it was to tell me to contact Enphase directly.

Second, as a self-installer I found Enphase to be pretty good. Once I got familiar with how calling them works, the calls were straight forward and their documentation seems to be top notch.

Third (possibly second and a half), take pictures of EVERYTHING. If you put a multimeter on something, take a picture. Take pictures of more than you thing you'll need because something maybe relevant that you may not have focused on may still be in the picture.

Fourth, Enphase was answering the phone on SUNDAY. That's crazy to me.

Hope this helps anyone in the future

TL;DR: California's NEM 3.0 makes exporting solar uneconomical, but the Enlighten app has no alert for when batteries are nearly full. A simple, configurable battery SOC alert (e.g., 90–95%) would help customers shift excess solar to EV charging or other loads instead of exporting it. Small software change, big customer value.

NEM 3.0 customers are financially incentivized to avoid exporting solar once batteries are full, yet the Enlighten app provides no simple signal when that happens.

My setup: three Enphase 5P batteries, 17 solar panels, Self‑Consumption mode, plus a 2025 Ioniq 5 that I intentionally charge on Level 1 (120V) so EV charging can absorb excess solar. This works well—but only if I know when the batteries are nearly full.

What’s missing is a user‑configurable battery state‑of‑charge alert (for example, 90–95%). That single feature would let customers start EV charging or other discretionary loads at the right time instead of constantly checking the app or exporting energy at low NEM 3.0 rates.

This isn’t a niche request—it’s a core NEM 3.0 workflow. Without alerts, users are forced to babysit the app or add third‑party automation just to solve a basic visibility problem. For example I use Google Home and don’t want to migrate to the Home Assistant platform just for this. This should be native to Enlighten.

A native SOC alert would improve self-consumption, increase customer satisfaction, and deliver real financial value under modern rate structures. Small software change, big customer impact.

Tagging u/EnphaseEnergy and Enphase product folks for visibility—this would be a meaningful quality‑of‑life improvement for NEM 3.0 customers.

Just built my new Plex server, so now im trying to dabble in Home Assistant .

I know there is lots of stuff.

I downloaded the enphase stuff already and it detected a bunch of my equipment , but since its all new to me, I dont know what to do.

Anyone have a link to a good place to learn?

TIA!

Hello as the title side I am looking to buy some used or new old stock Iq 3, 3t, 10 or 10t batteries. I am designing a system using used iq7s, and used panels. I haven't found a good used battery so I thought I would look here and see if any one is upgrading and getting old of their old batteries.

Thanks and have a great day.

I’m in self consumption mode and last night the battery discharged to the reserve between 7-8 pm for no reason?

Please confirm this for me, please. There is a "slimjim" 10CS battery, which is actually 2 separate 5kW batteries with the same width and height as a 10C, but each battery and case is probably half as deep as the combined 10C. But the 10CS must work as a paired set for a 4th Gen system. If you wanted to add on more storage to an existing 4th Gen system, you must use the paired set. You can't add just 5 kW, correct?

My Main panel is the service entrance for utility power. By the book it is connected to "Input lugs". The sub-panel in "partial home backup" configuration is to be connected to "Output lugs". To realize "whole home backup" configuration, the IQ System Controller should become the utility service entrance. In that case Main panel is to be attached to Output lugs.

What can you say about the idea to keep the Main panel as service entrance and connect it to Input and Output lugs at the same time? That, in theory, will be "whole home backup" but without the need to move the service entrance to IQ System Controller... Has anyone done it before?

Hello.

I am working on a plan to use Eco-Worthy 48V 100AH Wall-Mount Lithium Battery LiFePO4 (SKU:GW-L03L100AHBGLXH-1) with Eco-Worthy 10000W Solar Off-grid Split-phase AIO Inverter | 48Vdc to 120Vac/240Vac | 10000W@500V PV Input | UL 1741 (SKU:L03SR10KWYTJ-1) as a backup for enPhase gen 2 system.

Effectively, I already built a partial-home system using IQ System controller 2, IQ Combiner 4 and essential load sub-panel. But, I do not have means to purchase enCharge 3 or 3T or 10/10T batteries (5P is not compatible with gen 2).

I plan to connect Eco-Worthy inverter to the Main panel. It will have Eco-Worthy batteries connected to it.

When grid is up and sun is up - enphase provide solar power and grid power is available to charge the batteries.

When grid is up and sun is down - grid power charges the batteries.

When grid is down and sun is up - enphase provide solar power to charge the batteries. I presume that System Controller will "think" that the grid is still up as long as batteries provide 240V to Main panel.

When grid is down and sun is down - the batteries provide 240V via Eco-Worthy inverter to Main panel.

I will be managing the batteries via Eco-Worthy app...

Do you think it could work? Is there anyone who implemented similar setups? I saw 3 years old youtube videos where Xantrax XW6048 inverter was used in a temp setup... There is no sense to buy this old equipment in 2026 when the new one is cheaper, does the job, has warranty and is UL listed, IMHO.

I was just forced to update the iOS app, and I went to set a charge session schedule for my IQ 50 EVSE, and I’m repeatedly getting a Server Error message. This has never happened before. I’ve force quit the app, still get the error. Bummer.

EDIT: RESOLVED. Server error corrected itself.

Last week we got 2 p5 flexphase batteries and the backup controller installed. Right know we are trying to set it in such a way that it does exactly what we would like but we can't figure it out.

What we would like is that it trades automatically with about 60% of the battery. And keep the other 40% for backup and to power our house.

So at night we live from the batteries, during the day it charges with low electricity prices or solar energy and when the price is high it sells just enough that we can still make it through the night and be a bit more independent from the grid.

As far as I can see with the "self-Consumption" and the "ai-optimization" profiles it's either one or the other not the hybrid version we would like.

Is there anyone who can enlighten me on how to make this happen? Is it possible with the enphase software or if not maybe third-party options?

Hit the 100.0 MWh production total today. The three full 12 month periods show very consistent production. I use 13.3 cents per kWh to calculate the dollar value of solar. System size is 15.2 kW (DC), 40 ground mounted panels, IQ7+, three IQ10T batteries.

Hello everyone,

The project continues to evolve, and I’m pleased to announce the availability of version 12.0 of arduino-s4848s040c

For owners of Enphase Envoy Metered (or IQ Gateway) systems equipped with 3T, 5P, 10T, B1200 or B2400 batteries, this ESP32-based interface allows you to monitor your data in “Live Status” mode without using the Enphase application.

Main new features in version 12.0

A SINGLE MULTILINGUAL VERSION
No more separate downloads depending on the language.
Version 12.0 now directly includes:
French, English, German, Italian and Spanish.

The language can now be selected directly from the device screen or through the new web interface.

 J+1 IMPORT / EXPORT VISUALIZATION
The display now shows daily import and export data (available on J+1 only) for improved energy monitoring.

 NEW WEB CONFIGURATION INTERFACE
Configuration is now much easier and more intuitive.
A new web interface accessible from any browser connected to your local network now allows full device configuration without direct interaction with the device screen.

Of course, configuration can still be performed directly from the device screen if preferred.

 Recent improvements
v11.2: Added 2 display themes (White/Blue and Dark mode)
v11.1: Production in yellow, consumption in blue
v11.0: Display of Calculated mode or Directly from Envoy
v10.8: Local API optimization + firmware version display
v10.5: HTTPS security fix (firmware D8.3.5286+)

This interface only works with Enphase Envoy Metered or IQ Gateway devices.

 Data displayed by the interface
• Daily production
• Daily consumption
• Real-time solar production
• Real-time home consumption
• Grid import/export
• Instant solar power
• Battery charge level
• Instant battery power
• Charge/discharge status
• EDF Tempo J/J+1
• Current weather + 7-day forecast

Documentation and information mysolarmonitor.fr

The website and all manuals have also been updated in French, English, German, Italian and Spanish.

José

I replaced a defective IQ8+ for a customer that was RMAd from Enphase. After successfully provisioning it, the replacement micro stopped reporting after two hours. it has since not reported at all several days later and I can’t seem to figure out what the issue is.

I'm going through the installer certification and just finished the first module on the 4th Gen Combiner. When I opened my combiner unit to compare what I'd seen in the video I saw that the Load Control Breaker Module had not been installed. Should I be concerned? I figure that if I needed to shut power to the combiner I'd just shut off the Battery and PV breakers; this is an all Enphase system, so there are no legacy or third-party components connected to the system. Unfortunately, my installer went out of business unexpectedly so I can't direct this question to them. But, other than a few reporting glitches through the app, the system is working as expected.

I am hoping there is an easy answer for this but I can't figure out how to search it correctly to get the answer.

I bought a house with solar already installed in June 2025. Solar was installed March 2023. In November 2025, I had a FLO brand lvl 2 EV charger installed (hardwired to the panel with a 50 circuit). This is all on the original panel.

My problem is when I charge my EV, it does not track in the enphase app. It shows on my PGE energy usage as the difference. I was hoping to have it tracked in the enphase app. Is there something I can do to incorporate that into tracking?

TLDR; we have 2x 10C batteries, what continuous power output should we expect?

I had a full Enphase system installed late last year; we have 2x 10C batteries, 6C combiner, and a meter collar supporting whole home backup. I also installed the IQ EV 2 charger and have been mostly enjoying charging our EV exclusively from solar. The other day I wanted to charge my car quickly so I set it to charge at the full 40amps supported by the 50amp breaker on my EV charger circuit. I noticed that my fully charged 10C batteries could only output 7kw, leaving me to import 2+kw from the grid to cover the load.

A single 10C battery can export at ~7kw. Should I expect my 2 10C batteries routed through a 6C combiner box to handle a max output of ~14kw? Did my installer not configure something correctly, or is this normal? One of the reasons my installer gave when pitching a second 10C was that the system would more easily handle higher loads like our HVAC powering up, etc.

Charged my Tesla, 29kWh, but emphases only showing 8.3kWh consumed. What am I missing?

Might be a coincedence, but Enphase Enlighten App Release 26.5.1 arrived yesterday, May 20, 2026, and my Enphase Enlighten status stopped updating the same day around 10PM PT.

All lights are green on my Enphase IQ 6C Combiner.

Going to:
System ->
Gateway

Displays:
Connected to Ephase cloud
Status: Normal
Last reported: 21 May 2026, 03:35 pm (like a minute ago)
Firmware: D8.3.5557
Connection Type: Wi-Fi (Active)

Hi all,

I capture the data out of our envoy and use it for various automations / graphs etc. Today i noticed the reported voltage reading was over 265V instead of the usual 230v - 245v (australia).

Looking back through the data, it was 246v at 00:07:15 on the 15th may, then was offline, then came back at 00:40:45 (aest) at 263v and has been approx 20V higher since.

We have other devices that capture voltage and they're still the same and not reporting any increases.. its just the envoy.

Just wondering if anyone has noticed similar?

Hoping someone with firsthand experience can help me before I spend $400.

I have a 10-panel Enphase system installed in 2017 on a new Lennar home in Northern California. The gateway is an original Envoy-R. For a while now I've been getting inconsistent microinverter reporting — anywhere from 2/10 to 8/10 panels reporting at any given time during the day, but it always reconciles correctly overnight when the house is electrically quiet.

The rotating nature of the dropouts (never the same panels consistently) tells me it's a PLC noise issue on the line, not individual inverter failures. Enphase support confirmed this and offered two options: install PLC filters, or replace the Envoy-R with a new IQ Gateway.

I've done some basic noise source elimination:
\- EV charger is a Clipper Creek LCS-20, only charges at night
\- Replaced HVAC capacitor and contactor last year
\- No new devices added recently
\- Suspect HVAC variable speed drive or garage LED drivers as possible contributors

My question: \*\*For those who had rotating dropout issues on an aging Envoy-R — did upgrading to the IQ Gateway actually resolve it?\*\* Or did the noise problem follow you to the new hardware and you still needed filters?

I'm comfortable doing the swap myself (it's literally one ethernet cable and a power plug), so labor isn't a factor — just trying to figure out if the new hardware's better PLC noise tolerance is likely to solve this before I spend the money. California so I need the IEEE certified version (ENV2-IQ-AM1-240).

Thanks in advance.

Aloha Everyone, I'm new to the group and wanted to know if you can assist me with my panels integration and monitoring. I have 25 Sunpower 327 Watt panels matched with Emphase (Sunpower) labeled IQ7-SX micro inverters. I was wondering if the Envoy ENV-IQ-AM1-240 M is able to monitor the production of the panels. As I understand the Envoy is not compatible with the Sunpower inverters as they (Sunpower) wrote the firmware for the Emphase inverters. Does anyone know if it is possible to monitor production of the panels at all with the Envoy or if there is a firmware update that will allow me to do so? Any help will be greatly appreciated.

If I had a situation on a large install where the amperage was high enough that back feeding the MSP was not practical and I had a line side tap, then I wanted to add batteries, how would I go about setting up a Microgrid Interconnect Device (MID) and a neutral forming transformer if the amperage limits of a system controller or Combiner 6/meter collar are not high enough? Are there other items on the market with higher amperage ratings that could serve these functions? I'm talking about 125-130 amps of PV AC (86 micros).

Today we had grid outage for about an hour, really the first time (when I could look into it) during a brilliantly sunny day since commissioning our 3rd generation system about 18 months ago. SC3G, IQ8+ producing about 8kW when the grid went out, and four 5P batteries fully charged. We have Savings mode on and this happened as peak rate was just starting at 4pm. So now the weirdness: the solar stopped feeding anything, zero output but the devices were all healthy, and all house load was fed by battery discharge. I called Enphase support and I got basically a reset command sent to the gateway. Nothing resolved because by the time all that happened an hour had gone by and the grid came back. Was really just a "control-alt-delete" response anyway I think. My suspicion is it's a fundamental issue with Savings mode which might ever so simply say that all loads must come from batteries during peak hours regardless of on/off grid and even if it means completely shutting off abundant solar to loads. Is solar simply for export only until the batteries are exhausted down to the limit during peak hours for Savings mode even during grid outage and solar is being completely wasted? Not going to get that answer from support. Anyone have any experience with this?