# \[APP\]\[Pro\] Elekeeper / SAJ eSolar Inverters **URL:** \ **Category:** Apps\ **Tags:** app\ **Created:** [March 24, 2026, 10:44am UTC](https://community.homey.app/t/app-pro-elekeeper-saj-esolar-inverters/152892 "2026-03-24T10:44:27Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![telenut](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/telenut/32/12666_2.png) [@telenut](https://community.homey.app/u/telenut)\ **Post date:** [March 24, 2026, 10:44am UTC](https://community.homey.app/t/app-pro-elekeeper-saj-esolar-inverters/152892/1 "2026-03-24T10:44:27Z")
### Hi everyone! šŸ‘‹ After being unable to find a working integration for my SAJ / Elekeeper solar inverter, I decided to build one myself. Iā€™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](https://homey.app/nl-be/app/be.telenut.elekeeper/elekeeper/test/) ---
**Author:** ![Brammmer](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/brammmer/32/124120_2.png) [@Brammmer](https://community.homey.app/u/Brammmer)\ **Post date:** [May 26, 2026, 3:15pm UTC](https://community.homey.app/t/app-pro-elekeeper-saj-esolar-inverters/152892/2 "2026-05-26T15:15:09Z")
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 ---
**Author:** ![telenut](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/telenut/32/12666_2.png) [@telenut](https://community.homey.app/u/telenut)\ **Post date:** [May 26, 2026, 4:05pm UTC](https://community.homey.app/t/app-pro-elekeeper-saj-esolar-inverters/152892/3 "2026-05-26T16:05:39Z")
As I donā€™t have a battery pack, the app does not support that at this moment. Feel free to add it yourself šŸ™‚ 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. ---
**Author:** ![Rob\_Ha](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/rob_ha/32/122020_2.png) [@Rob\_Ha](https://community.homey.app/u/Rob_Ha)\ **Post date:** [June 8, 2026, 12:37pm UTC](https://community.homey.app/t/app-pro-elekeeper-saj-esolar-inverters/152892/4 "2026-06-08T12:37:36Z")
Hello, have also installed the app. I have 2 inverters and it looks like itā€™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 ---
**Author:** ![telenut](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/telenut/32/12666_2.png) [@telenut](https://community.homey.app/u/telenut)\ **Post date:** [July 2, 2026, 5:31pm UTC](https://community.homey.app/t/app-pro-elekeeper-saj-esolar-inverters/152892/5 "2026-07-02T17:31:25Z")
**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 **ā€˜Inverter Indexā€™**. 2. **Preliminary Battery Support:** I have added basic data mapping for SAJ home batteries (`measure_battery` and `measure_power.battery`). Since I donā€™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: šŸ‘‰ **[https://homey.app/a/be.telenut.elekeeper/test/](https://www.google.com/search?q=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! šŸ‘ ---
**Author:** ![Rob\_Ha](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/rob_ha/32/122020_2.png) [@Rob\_Ha](https://community.homey.app/u/Rob_Ha)\ **Post date:** [July 4, 2026, 1:46pm UTC](https://community.homey.app/t/app-pro-elekeeper-saj-esolar-inverters/152892/6 "2026-07-04T13:46:08Z")
@telenut I have installed the test version! itā€™s working!! nice!! Thanks ![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/8/5/85321453e58df989e45b8154fd7097e3bbe7cbe2.png) ---
**Author:** ![Per\_Rydell](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/per_rydell/32/121795_2.png) [@Per\_Rydell](https://community.homey.app/u/Per_Rydell)\ **Post date:** [July 17, 2026, 8:38pm UTC](https://community.homey.app/t/app-pro-elekeeper-saj-esolar-inverters/152892/7 "2026-07-17T20:38:41Z")
Yes! Iā€™m so happy to have found this app. Looking good so far with battery monitoring, many thanks. And keep up the good workā€‹šŸ‘ ---
**Author:** ![telenut](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/telenut/32/12666_2.png) [@telenut](https://community.homey.app/u/telenut)\ **Post date:** [July 17, 2026, 9:19pm UTC](https://community.homey.app/t/app-pro-elekeeper-saj-esolar-inverters/152892/8 "2026-07-17T21:19:55Z")
I found out that after some days the data stops refreshing. A restart of the app fixes this. When I have time after my holiday I look for a decent solution. ---
**Author:** ![Per\_Rydell](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/per_rydell/32/121795_2.png) [@Per\_Rydell](https://community.homey.app/u/Per_Rydell)\ **Post date:** [July 18, 2026, 6:49am UTC](https://community.homey.app/t/app-pro-elekeeper-saj-esolar-inverters/152892/9 "2026-07-18T06:49:40Z")
After running it now for some hours are it showing the battery % when pressing the battery icon, But the main control panel data is missing like total power and so on ,so it would be great if you could have a look at this as well. Many thanks in advance! HS3 ![IMG_0275](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/4/d/4d59df5053c6c6e36eb341abc4c46b9cd2112cf8.jpeg) ![IMG_0276](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/3/a/3ae84917005c1eab9a78bf54739066b0acda26af.jpeg) ---
**Author:** ![Per\_Rydell](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/per_rydell/32/121795_2.png) [@Per\_Rydell](https://community.homey.app/u/Per_Rydell)\ **Post date:** [August 10, 2026, 9:00pm UTC](https://community.homey.app/t/app-pro-elekeeper-saj-esolar-inverters/152892/10 "2026-08-10T21:00:15Z")
I have also tried to start some flows in Homey based on the battery % but they are unfortunately not working. Hope your holidays are over soon and that you have enjoyed them! ---
**Author:** ![WouterO](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/woutero/32/58907_2.png) [@WouterO](https://community.homey.app/u/WouterO)\ **Post date:** [August 10, 2026, 10:23pm UTC](https://community.homey.app/t/app-pro-elekeeper-saj-esolar-inverters/152892/11 "2026-08-10T22:23:58Z")
Hi, my battery values remain empty in v1.3.2, so Iā€™d like to run the app locally and send you the logs as requested. For context, my setup consists only of an SAJ battery, which is AC-coupled. I donā€™t have an SAJ solar inverter as part of the setup. Iā€™ve already installed Node.js and the Homey CLI, but I canā€™t find the source code repository. Could you share the GitHub/source code link so I can run `homey app run` and provide you with the relevant logs? Thanks! ---
**Author:** ![telenut](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/telenut/32/12666_2.png) [@telenut](https://community.homey.app/u/telenut)\ **Post date:** [August 11, 2026, 6:29am UTC](https://community.homey.app/t/app-pro-elekeeper-saj-esolar-inverters/152892/12 "2026-08-11T06:29:17Z")
source code can be found here: [GitHub - telenut/be.telenut.elekeeper: Homey app for the SAJ inverters using elekeeper app (cloud) Ā· GitHub](https://github.com/telenut/be.telenut.elekeeper) I have a fulltime job and 2 kids, so no time left at the moment to investigateā€¦ I also donā€™t have a battery myself. Feel free to use the code and update it! ---
**Author:** ![Per\_Rydell](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/per_rydell/32/121795_2.png) [@Per\_Rydell](https://community.homey.app/u/Per_Rydell)\ **Post date:** [August 15, 2026, 8:24am UTC](https://community.homey.app/t/app-pro-elekeeper-saj-esolar-inverters/152892/13 "2026-08-15T08:24:00Z")
I fully understand your situation. Iā€™m not able to do any coding myself, so I guess I just have to wait until you eventually find some time. I can for sure help out with testing, just let me know! ---
**Author:** ![Bote](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/bote/32/83465_2.png) [@Bote](https://community.homey.app/u/Bote)\ **Post date:** [August 21, 2026, 1:42pm UTC](https://community.homey.app/t/app-pro-elekeeper-saj-esolar-inverters/152892/14 "2026-08-21T13:42:33Z")
I have the same problem ā˜¹ ---
**Author:** ![tibi](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/tibi/32/173486_2.png) [@tibi](https://community.homey.app/u/tibi)\ **Post date:** [September 7, 2026, 1:17am UTC](https://community.homey.app/t/app-pro-elekeeper-saj-esolar-inverters/152892/16 "2026-09-07T01:17:56Z")
Hi Steven, thanks for the app! Iā€™ve opened two PRs on GitHub: #2 adds battery SOC/power for setups where the API reports hasBattery=0 (my SAJ CH2 cabinet, but it also fixes the charge/discharge sign and adds battery condition cards), and #4 adds per-string PV power/voltage. Both validated at publish level and tested against live API data. Happy to adjust anything. ---
**Author:** ![telenut](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/telenut/32/12666_2.png) [@telenut](https://community.homey.app/u/telenut)\ **Post date:** [September 7, 2026, 6:35am UTC](https://community.homey.app/t/app-pro-elekeeper-saj-esolar-inverters/152892/17 "2026-09-07T06:35:53Z")
**Update v1.3.3 is now live in the test channel!** Thanks to community PRs (#2 & #4), this release brings major improvements: - **Battery fixes:** Proper SoC and power readings even when the API reports `hasBattery=0` (such as on SAJ CH2 setups), inverted charge/discharge signs corrected, and new battery condition flow cards added. - **PV Strings:** Added detailed per-string solar power and voltage reporting. You can test it via: `[[https://homey.app/a/be.telenut.elekeeper/test/](https://homey.app/a/be.telenut.elekeeper/test/)]` ---
**Author:** ![telenut](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/telenut/32/12666_2.png) [@telenut](https://community.homey.app/u/telenut)\ **Post date:** [September 7, 2026, 6:55am UTC](https://community.homey.app/t/app-pro-elekeeper-saj-esolar-inverters/152892/18 "2026-09-07T06:55:42Z")
thx to AI you donā€™t need to be able to code šŸ˜› Someone just added some updates, I pushed them to the test channel ---
**Author:** ![Per\_Rydell](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/per_rydell/32/121795_2.png) [@Per\_Rydell](https://community.homey.app/u/Per_Rydell)\ **Post date:** [September 7, 2026, 7:33am UTC](https://community.homey.app/t/app-pro-elekeeper-saj-esolar-inverters/152892/19 "2026-09-07T07:33:57Z")
Not sure if the refresh issue are resolved, but the power is thereā€‹šŸ‘ ![IMG_0309](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/a/4/a40df1190c46b8f8a7f62e6847397b92815f03c6.jpeg) ---
**Author:** ![tibi](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/tibi/32/173486_2.png) [@tibi](https://community.homey.app/u/tibi)\ **Post date:** [September 7, 2026, 9:03am UTC](https://community.homey.app/t/app-pro-elekeeper-saj-esolar-inverters/152892/20 "2026-09-07T09:03:35Z")
nice! thanks for pushing the code. I also added all the PV strings Have fun! ---
**Author:** ![David\_Watson](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/david_watson/32/174984_2.png) [@David\_Watson](https://community.homey.app/u/David_Watson)\ **Post date:** [September 11, 2026, 4:16am UTC](https://community.homey.app/t/app-pro-elekeeper-saj-esolar-inverters/152892/22 "2026-09-11T04:16:04Z")
this is just for monitoring . are we going to get control over the inverters. ie mode, charge and discharge times with input numbers ? can you do modbus over ip through the homey hub ? have you seen [GitHub - stanus74/home-assistant-saj-h2-modbus: Home Assistant Component to read SAJ H2 Inverter Modbus Data Ā· GitHub](https://github.com/stanus74/home-assistant-saj-h2-modbus) [Next page](https://community.homey.app/t/app-pro-elekeeper-saj-esolar-inverters/152892.md?page=2)