Luxpower Inverter Integration

Share your Projects! Custom Integrations
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Hello everyone,

I’d like to share a new custom integration I’ve been working on for LuxPower inverters. Like many of you, I wanted a reliable, cloud-free, and local way to integrate my inverter with Home Assistant, so I decided to build one.

I’ve been using it myself for the past few weeks, and it’s been running just perfect!

Please don’t judge too hard, as this is my first real Python project. My background is mostly in C#, so I’m still learning the ropes in the Home Assistant world, and I’m very open to feedback.

What it does:
The integration connects directly to your inverter’s WiFi dongle over your local network and creates a rich set of entities, including:

Real-time Sensors: PV Power, Grid Import/Export, Battery SOC/SOH, Load Consumption, Voltages, Temperatures, etc.

Controls: Number entities to set Charge/Discharge currents and other operational settings.

Switches: Toggles for features like AC Charging and Grid Feed-in.

User-Friendly State: A text sensor that tells you exactly what the inverter is doing in plain English.

Installation & Configuration
This integration can be installed via HACS by adding it as a custom repository.

For detailed, step-by-step instructions on how to install and configure the integration, please see the README.md file on the GitHub repository.

Feedback & Support
As I mentioned, I would like to hear all your feedback or about any issues you’ve faced with. Your input is incredibly valuable. Please feel free to open an issue on GitHub for any bugs or feature requests, or just reply to this thread with your thoughts!

You can find the project and all documentation on GitHub here:
https://github.com/ant0nkr/luxpower-modbus-hacs

Thanks for checking it out!

2 Likes
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Hi,

I just had a sales guy around trying to sell one of these, so I am interested in your integration.

I need to run a few things 24/7 (Home Assistant, IoT etc.) off the batteries when there is a grid failure. I have been told in need an EPS? I have not looked into this yet but it seems the only way they have of creating battery backup.

However, the way they have describe the EPS installation is that I need to select circuits to power or install new sockets to power in the event of a grid failure.

I do not want the hassle of these extra sockets or circuits to do this.

I want to power the whole installation from the batteries in the event of a grid failure and then use Home assistant to switch off items I do not want to power. I have been told I cannot do this as the grid failure cannot be detected by the Lux system.

Do you know if this is true? Can HA detect the grid failure and then automate the switch off of some items?

Thanks

Steve

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Hi. This Integration does require Inverter LuxPower. It can be any, since they all using same Modbus Communcation. Just with WiFi Dongle, not ethernet, I don’t have ethernet dongle, so can’t test how it works.

And yes, you need EPS in any case to backup your power and convert 48V to 220V or whatever battery you have.

Thank you.

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Hi,

I am not sure if this was a reply to me?

I have looked at EPS in the meantime and it appears to be a part of the inverter. The sales guy suggested it was a separate box! However it looks like its limited to 13 Amps which may be a new issue for me as I will not know the instantaneous load when the grid fails.

Do you know if HA can detect the grid failure to the inverter?

Thanks

Steve

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Hi. No, HA by itself can’t detect Grid failure. It has to be something in the EPS to notify about Grid Failure or it can be ESP32, that will be connected to the grid and if it has no power, it means grid is off. Something like this.

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Hi yeah that’s what I thought. I use the ESP32s all over the place so no issue there. I didn’t know if your integration could pick up the failure and report it.
Thanks

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I can, but it is designed to work with Luxpower Inverters. If you have one with WiFI dongle installed, then yes. You can check for power outages.

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Hello,
I’m using the DGxxx dongle. Currently, it can read some configuration parameters, such as the discharge limit (Ample), but the sensors are not working.
Is there any solution for this?
Please help me. Thank you!

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Hello,
It’s hard to tell what the issue is, Luxpower Modbus protocol is specific one and doesn’t always works as standard Modbus.
However, from what I know DG is a sim-card dongle, instead of BA which is WiFi.
If you tell me how you’re trying to connect to it, I mean, is there an IP or how you’re connecting to it. I can add this logic into my custom integration and you can try to use it.

Thank you!

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Wow, just my luck! I got HA setup yesterday and you just created this! I have an EG4 branded LuxPower inverter and would like to give this a shot.

I’m not much use on the coding front but happy to be an early user. How does the integration interface locally with the dongle? I thought the factory dongle is just setup to phone home to the company’s cloud.

Thanks for the work on this!

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Hi. It works with WiFi dongle. There is an upcoming release with some improvements for DG/DJ dongles. it works just perfect with BA dongles.

Thank you.