Received my Homevolt battery from Tibber today. No apps available and no official API just yet. But seems like modbus is available. Have anyone managed to get data out of homevolt already? If so, how did you do it?
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If you have a Modbus manual (registers, types etc.), you can use the ModbusTCP app if there is no other way/app.
Then you can put the data into virtual devices to work with.
De omvormer van Homevolt beschikt over Modbus, maar zal niet extern van het apparaat beschikbaar komen. Dit omdat de communicatie module als standaard aanwezig is en data via een webserver deelt.
Since athom promoted Tibber as official supported on the energy dashboard they should implement it in the Tibber app
Also place a request at the homey device support request page. . I also did a few weeks ago when I received the Homevolt but the request only gets listed if more people request it
If you could please keep the conversation in English as much as possible, then more people will be able to participate and help you.
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It’s a cut copy paste from the Tibber specs while in my car , I’m not gonna translate it while driving 
Google translate or any modern browser with auto translate is a friend of many
We are in touch with Tibber and will be working on adding support for the Homevolt battery within Homey. Keep y’all posted 
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That’s awesome news. Thank you!
I’m in for alpha/beta-test together with your team.
I also have the homevolt at home. So it would be Nice to connect to Homey
should not be that hard, do we have a doc with the registers and if someone has a vpn we can have it working in a few days. reading is easy, write registers and flow actions always takes some more research/testing.
there are so many modbus apps already , you would expect homey would take over and you just have to provide some yaml like HA
Good point. But I think it’s not about Modbus in general (just reading/writing registers) but the logic behind and manufacturer specific data interpretation and actions.
homey only want custom apps , but with this new dashboard you could generate UI and generate flow actions based on some yaml. you already did the hard work with all the data types.
or able to read this for example Sungrow-SHx-Inverter-Modbus-Home-Assistant/modbus_sungrow.yaml at main · mkaiser/Sungrow-SHx-Inverter-Modbus-Home-Assistant · GitHub
Hehe, or use HA integration and HA app 
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mostly got it working in a few hours when I have vpn access, always the same crap. little or big edian , any special conversion for 16,32,64 size registers.
then find out how did they implement charging , discharging, schedules
and then all the homey overhead, like pics , json files arghhhhhh
We are getting a lot offtopic. But last one…I use my Modbus app to control the Fronius Gen24. To set charging/discharging limit, you have to set 2 or 3 registers and one of them bitwise (as int). Modbus is not the best standard for integration. Perhaps Matter offers more possibilities in future if manufactures will add it to their existing products.
I expect modbus will be there for a long time on energy products. solaredge started on zigbee but is slow and unstable , for sure you can read every x seconds and long roundtrips.
plus they have no incentive to change this , not for homey or HA , they have there own cloud api where you have to pay for when you want under 15min data.
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Modbus can be a real deep dive—it’s easy to get overwhelmed fast. Before our energy launch, I did a lot of research on the standard, and the biggest challenge is its lack of formal standardization.
This nails the core issue. Some manufacturers openly share their register mappings, while others guard them more closely than Patrick guards the secret recipe for his crab burgers.
On top of that, many Modbus devices use Modbus RTU instead of TCP, making integration with a device like Homey trickier. You would need a converter.
That said, when a brand is willing to collaborate, things can move pretty smoothly. We’re currently working with Solis on an app leveraging their Modbus TCP implementation since most of their inverters already support it.
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nice solaredge also have this out of the box, you need to enable it and sometimes they want you to use lan and not wifi.
also some block the modbus port or are very slow . it is very tricky. not always entry level.
There is a developer making a homevolt app at the moment. So i guess it will be there soon since i have seen some nice shots of the homevolt working in the energytab at slack
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Can we see that somewhere as well? I’m very curious; I’ve ordered one too
