[APP][Pro] Elekeeper / SAJ eSolar Inverters

Apps
1

Hi everyone! :waving_hand:

After being unable to find a working integration for my SAJ / Elekeeper solar inverter, I decided to build one myself. I’ve been running this on my own Homey Pro for a while now, and it works perfectly!

What does this app do? It connects to the Elekeeper/SAJ Cloud API and brings your inverter data straight into Homey.

Features:

  • Live Solar Power (Watts)

  • Daily Yield (kWh)

  • Total Yield (kWh)

  • Flow cards to trigger automations based on power changes or daily yield goals.

How to use: Simply install the app and add your inverter as a device. You log in using the exact same username and password you use for the Elekeeper/SAJ mobile app. The app automatically detects your inverter and starts pulling data.

The app is currently awaiting certification by Athom, but you can already install the Test version here: elekeeper | Homey

2

Hi Telenut good job on making the app.

I just ordered the homey pro to get started.

I already have a SAJ HS3 with a battery pack.

Can your app also monitor the SOC of the battery pack?

Br

Bram

3

As I don’t have a battery pack, the app does not support that at this moment.
Feel free to add it yourself :slight_smile:
The app was completely vibe coded using Gemini. Other tools would work too or even better.
Code is open source and based on implementations found for HA.

4

Hello, have also installed the app.

I have 2 inverters and it looks like it’s showing the data of only 1, instead of 2 or the total of both inverters.

Is it a possibility to change it, so we can select in the setup between several or make it for now the total sum of both inverters.

Thanks Br. Rob

5

Hi everyone,

I have just published a new test version (v1.3.2) to the Homey Test Store! This version includes two highly requested features that I would love for you to help me test:

  1. Multi-Inverter Support: You can now connect multiple inverters from the same account. After installing this update, go to the advanced settings of your Elekeeper Inverter device in Homey. You will find a new setting called ‘Inverter Index’.

    • 0 = your first inverter (default)

    • 1 = your second inverter, etc. If you have two inverters, simply add a second device in Homey and change its index to 1!

  2. Preliminary Battery Support: I have added basic data mapping for SAJ home batteries (measure_battery and measure_power.battery). Since I don’t own a battery setup myself, I need your help to verify if it works! If you have an SAJ battery, please let me know if the battery capacity (%) and charging/discharging power (W) display correctly.

You can download and install the test version right now via the Homey Test Store: :backhand_index_pointing_right: https://homey.app/a/be.telenut.elekeeper/test/

Note for battery users: If the battery values remain empty or look incorrect, please run the app locally using homey app run if you can, and share your log snippet with me so I can fine-tune the API fields for your specific setup.

Looking forward to your feedback! :+1: