# \[APP\]\[PRO\] Connect Solar Solax Inverter to Homey **URL:** \ **Category:** Apps\ **Tags:** app\ **Created:** [July 24, 2022, 10:04pm UTC](https://community.homey.app/t/app-pro-connect-solar-solax-inverter-to-homey/66471 "2022-07-24T22:04:41Z")\ **Posts on this page:** 20\ **Page:** 7
**Author:** ![Kenny\_S](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/kenny_s/32/80323_2.png) [@Kenny\_S](https://community.homey.app/u/Kenny_S)\ **Post date:** [April 2, 2025, 9:56am UTC](https://community.homey.app/t/app-pro-connect-solar-solax-inverter-to-homey/66471/126 "2025-04-02T09:56:53Z")
Hi @Michal_Stranik , I was following up the discussion you had in December. I’m facing the same “issue”. In the Solax app you have 2 values, PV and Inverter, with the difference being in the energy losses from the converter. So my example below, 2228W from the Panels and after converting the effective power is “only” 2122W (4-5% losses in the converter). The PV value is not very interesting but as far as I can see this is the only value you can readout from Homey, I guess this has to be a mistake somehow because the Load Power and Solar Power give the same value where I expect Load Power to reflect the Inverter value given by Solax (2122). ![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/7/0/702e93d49dedb4c030bfa3c09ef1f6d28de7a45b.png) ![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/d/b/db9072431098ccb16ed290b9a4330eeba16b8331.jpeg) If the Solar Today and Generation Total is with or without losses I don’t know because this is also only one value in Solax. ---
**Author:** ![Baddelomeus](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/baddelomeus/32/115133_2.png) [@Baddelomeus](https://community.homey.app/u/Baddelomeus)\ **Post date:** [April 3, 2025, 7:43pm UTC](https://community.homey.app/t/app-pro-connect-solar-solax-inverter-to-homey/66471/127 "2025-04-03T19:43:50Z")
when are you going to implement this? ![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/2/0/20ff26519d669e34e96daaca2fa6629d3298c80d.png) ---
**Author:** ![Sharkys](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/sharkys/32/54029_2.png) [@Sharkys](https://community.homey.app/u/Sharkys)\ **Post date:** [April 4, 2025, 9:04am UTC](https://community.homey.app/t/app-pro-connect-solar-solax-inverter-to-homey/66471/128 "2025-04-04T09:04:25Z")
> [@Baddelomeus](#): > > when are you going to implement this? It’s there, check add devices for Solax app. ---
**Author:** ![Baddelomeus](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/baddelomeus/32/115133_2.png) [@Baddelomeus](https://community.homey.app/u/Baddelomeus)\ **Post date:** [April 4, 2025, 10:52am UTC](https://community.homey.app/t/app-pro-connect-solar-solax-inverter-to-homey/66471/129 "2025-04-04T10:52:42Z")
Yeah i see my battery in de solax device, but it is not visible in the energy tab… ![IMG_3590](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/3/9/392a228cb383eea6dd2a4a93a43c7111bc9dd8b4.jpeg) ![IMG_3589](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/d/e/decb26af02bbff1eb95d62f30757de16dfaafc07.jpeg) ![IMG_3591](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/0/b/0b635b02fab7901df11af0a9258bc4d14b5574da.png) ---
**Author:** ![Sharkys](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/sharkys/32/54029_2.png) [@Sharkys](https://community.homey.app/u/Sharkys)\ **Post date:** [April 4, 2025, 11:08am UTC](https://community.homey.app/t/app-pro-connect-solar-solax-inverter-to-homey/66471/130 "2025-04-04T11:08:32Z")
Have you added it as battery as well ? (Add device → Solax → Solax Modbus Battery) ---
**Author:** ![Baddelomeus](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/baddelomeus/32/115133_2.png) [@Baddelomeus](https://community.homey.app/u/Baddelomeus)\ **Post date:** [April 4, 2025, 11:55am UTC](https://community.homey.app/t/app-pro-connect-solar-solax-inverter-to-homey/66471/131 "2025-04-04T11:55:37Z")
Battery is not connected via modbus, i use wifi dongle, and everything is setup via the api of solax. The local ![IMG_3593](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/4/e/4ec7ed79a0d427755dd32ec004928e128c492e0b.jpeg) api app for solax doesn’t work, tried everything, local api is closed. ---
**Author:** ![Michael\_Fritzsche](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/michael_fritzsche/32/96689_2.png) [@Michael\_Fritzsche](https://community.homey.app/u/Michael_Fritzsche)\ **Post date:** [April 5, 2025, 5:50am UTC](https://community.homey.app/t/app-pro-connect-solar-solax-inverter-to-homey/66471/132 "2025-04-05T05:50:35Z")
The current solar power is not shown properly (both cloud and modbus). What could be the reason? ![IMG_1643](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/3/3/33523fc4efff8caef04e35617c5942572449d8d2.jpeg) ![IMG_1644](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/8/1/81746d3138bb768fc3cee505f878271fab690d21.jpeg) ---
**Author:** ![Peter\_Kawa](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/peter_kawa/32/173848_2.png) [@Peter\_Kawa](https://community.homey.app/u/Peter_Kawa)\ **Post date:** [April 5, 2025, 1:06pm UTC](https://community.homey.app/t/app-pro-connect-solar-solax-inverter-to-homey/66471/133 "2025-04-05T13:06:32Z")
> [@Baddelomeus](#): > > Battery is not connected via modbus, i use wifi dongle So? Idk how it works with Solax specifically, but the SMA inverter app connects to my inverter with modbus _per wifi_ on port 502 ---
**Author:** ![Baddelomeus](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/baddelomeus/32/115133_2.png) [@Baddelomeus](https://community.homey.app/u/Baddelomeus)\ **Post date:** [April 5, 2025, 2:15pm UTC](https://community.homey.app/t/app-pro-connect-solar-solax-inverter-to-homey/66471/134 "2025-04-05T14:15:25Z")
Found it, added the convertor via modbus instead of api, had to give in the ip adress of the wifi dongle, works, added modbus battery, works! ![IMG_3596](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/4/e/4e5cee94241a3189aaf5ec5c5a8e7c40e7ad3a14.jpeg) ---
**Author:** ![JaccoStraaijer](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/jaccostraaijer/32/11777_2.png) [@JaccoStraaijer](https://community.homey.app/u/JaccoStraaijer)\ **Post date:** [May 3, 2025, 8:32am UTC](https://community.homey.app/t/app-pro-connect-solar-solax-inverter-to-homey/66471/135 "2025-05-03T08:32:20Z")
@Michal_Stranik: Great app! thx for creating and maintaining it! As far as I can see power control has not been implemented in your app yet? Any chance it will be in the near future? I would like to be able to disable PV production entirely when total energy prices (including taxes) become negative. In the Sloax app you can to this with ‘System ON/OFF’. I have seen other integrations with Solax controlling this parameter, but cannot seem to find it in the Homey app. ---
**Author:** ![Joost\_Draaisma](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/joost_draaisma/32/121733_2.png) [@Joost\_Draaisma](https://community.homey.app/u/Joost_Draaisma)\ **Post date:** [June 11, 2025, 6:24am UTC](https://community.homey.app/t/app-pro-connect-solar-solax-inverter-to-homey/66471/136 "2025-06-11T06:24:12Z")
Hi everybody. I still cannot add the inverter to the Homey. I use the id token and Registration number. ---
**Author:** ![Michael\_Fritzsche](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/michael_fritzsche/32/96689_2.png) [@Michael\_Fritzsche](https://community.homey.app/u/Michael_Fritzsche)\ **Post date:** [June 15, 2025, 10:06pm UTC](https://community.homey.app/t/app-pro-connect-solar-solax-inverter-to-homey/66471/137 "2025-06-15T22:06:59Z")
9 days ago, the integration stopped getting new data. I created a report with id: 7ab498e6-3659-4c65-acd8-d49acf77c6e4 I restarted the app, but nothing changed. My last data are from 9 days ago I also checked it with Solax Cloud and these data are from 5 months ago… ---
**Author:** ![Sharkys](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/sharkys/32/54029_2.png) [@Sharkys](https://community.homey.app/u/Sharkys)\ **Post date:** [June 16, 2025, 4:51am UTC](https://community.homey.app/t/app-pro-connect-solar-solax-inverter-to-homey/66471/138 "2025-06-16T04:51:13Z")
> [@Michael\_Fritzsche](#): > > 9 days ago The Solax inverter app for Homey hasn’t been updated for the last 5 months. > [@Michael\_Fritzsche](#): > > I also checked it with Solax Cloud and these data are from 5 months ago… You mean [https://www.solaxcloud.com](https://www.solaxcloud.com) ? So then it’s not related to this Homey integration itself. ---
**Author:** ![horakmar](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/horakmar/32/33849_2.png) [@horakmar](https://community.homey.app/u/horakmar)\ **Post date:** [June 16, 2025, 5:41am UTC](https://community.homey.app/t/app-pro-connect-solar-solax-inverter-to-homey/66471/139 "2025-06-16T05:41:25Z")
Hello Michael, I have same problem. Sometimes, communication will stop. I dont know why. Ping to dongle is perfect, cant figure why this happend. I agree with Sharkys, no update on app, no changes. After some time (couple of days) it is wokring again. With no changes in my net. ---
**Author:** ![Michael\_Fritzsche](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/michael_fritzsche/32/96689_2.png) [@Michael\_Fritzsche](https://community.homey.app/u/Michael_Fritzsche)\ **Post date:** [June 16, 2025, 6:19am UTC](https://community.homey.app/t/app-pro-connect-solar-solax-inverter-to-homey/66471/140 "2025-06-16T06:19:51Z")
Ok, on Solax Cloud, it was really the registration number which changed after replacing the wifi dongle, this is now working. ![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/d/b/db29e3706609586385a62ad3a674f4aae4916c21.png) But why i don’t get any values from Modbus anymore? There was no change… The IP has not changed and trying to unlock did not change it. Still no live data… ![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/8/f/8f570930bf83210319a90ff2e4ddcd5af37a5aa4.png) ---
**Author:** ![Philipp\_Jahn](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/philipp_jahn/32/125500_2.png) [@Philipp\_Jahn](https://community.homey.app/u/Philipp_Jahn)\ **Post date:** [June 16, 2025, 7:21am UTC](https://community.homey.app/t/app-pro-connect-solar-solax-inverter-to-homey/66471/141 "2025-06-16T07:21:30Z")
Hi. Same here. Startet with homey and solax app for my q-cells inverter in February. Modbus works for a week. So I set the polling rate higher and higher. Works for a few days. Then I can’t get values anymore. Tried so many resets with no solution. Thought my dongle was broken. Cloud works fine every time. Firmware of the inverter and the dongle was updated last month. Still no values. ---
**Author:** ![Michal\_Stranik](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/michal_stranik/32/179351_2.png) [@Michal\_Stranik](https://community.homey.app/u/Michal_Stranik)\ **Post date:** [June 16, 2025, 7:39am UTC](https://community.homey.app/t/app-pro-connect-solar-solax-inverter-to-homey/66471/142 "2025-06-16T07:39:27Z")
I see a bit of a pattern here: - I changed something and it stopped working - of course the application is to blame Unfortunately, I can’t guide everyone by the hand, but from my experience: Cloud: - always verify that the transfer to the cloud works - this is not related to the application, it is a function of Solax - the application then reads this data from it, if it is not there, it cannot work Modbus - usually, if it worked and nothing has changed and it doesn’t work, then restart the inverter - sometimes it causes problems if multiple devices try to read data from the inverter, so it’s best to leave only one If nothing helps, try uninstalling the application, restarting everything and installing the application again. If the devices are fine and the network is fine, then it must work. ---
**Author:** ![Michael\_Fritzsche](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/michael_fritzsche/32/96689_2.png) [@Michael\_Fritzsche](https://community.homey.app/u/Michael_Fritzsche)\ **Post date:** [June 16, 2025, 4:00pm UTC](https://community.homey.app/t/app-pro-connect-solar-solax-inverter-to-homey/66471/143 "2025-06-16T16:00:22Z")
> [@Michal\_Stranik](#): > > of course the application is to blame Who blamed the application? Not me. I just wanted to know how to proceed — I already restarted the app and tried “Unlock,” but nothing worked. Since this whole thing is basically a black box with no logs at all, how are you supposed to troubleshoot? Ask the community… which actually helped — classic layer 8 issue. But honestly, I wouldn’t have asked in the first place if Homey offered any kind of log access. The problem with the invalid registration number is almost certainly in the logs — just like the root cause of the Modbus issue. * * * ---
**Author:** ![horakmar](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/horakmar/32/33849_2.png) [@horakmar](https://community.homey.app/u/horakmar)\ **Post date:** [June 16, 2025, 5:05pm UTC](https://community.homey.app/t/app-pro-connect-solar-solax-inverter-to-homey/66471/144 "2025-06-16T17:05:59Z")
For example I think there is no problem in the app. Another solax apps dont work too. But Homey can ping inverter so its really hard to say, where the problem is. ---
**Author:** ![Michal\_Stranik](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/michal_stranik/32/179351_2.png) [@Michal\_Stranik](https://community.homey.app/u/Michal_Stranik)\ **Post date:** [June 16, 2025, 8:51pm UTC](https://community.homey.app/t/app-pro-connect-solar-solax-inverter-to-homey/66471/145 "2025-06-16T20:51:19Z")
There is application, which allows you to check Modbus connection. > **[GINEERS - Free Modbus terminal RTU and TCP](https://www.gineers.com/en/products_soft_other_gmodbus.php)** > > GINEERS offers quality products in the field of embedded electronics and industrial automation I suggest to stop Solax app before you use it, so it will not block each other. If this will not work, it means that there is some problem on inverter and you should contact Solax support. ![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/3/8/3820af0a72e612b84812df01c0492b5d333809b6.jpeg) [Previous page](https://community.homey.app/t/app-pro-connect-solar-solax-inverter-to-homey/66471.md?page=6) [Next page](https://community.homey.app/t/app-pro-connect-solar-solax-inverter-to-homey/66471.md?page=8)