Fronius inverter integration

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393

Thank you!
I bought my Fronius Symo without Smart meter :frowning: No knowledge I would have needed it with HA.
Just have to check the best price for it now :smiley:

394

Imho its really not that expensive - 200€ I think. But you will have to let a professional electrician install it next to your grid-providers energy meter and run a cable to your inverter.

There are other, HA compatible, solutions for metering your energy too, but I think its nice to have the Fronius thing as it also works in solar.web and the Fronius app.

395

Is this still the best integration for the Fronius inverter. I used to have it but started a hold new HA and delete my old HA. Why I asked is I see @safepay has not been back. I think September last year was last time update…will like to know if there another one out there or I just use this one. Thanks guys. I was one of the tested from way back LoL.

396

this is the one I’m using… it just works and does all I need
image

397

You should be fine with the official integration shipped with HA core.

398

For anyone who wants to get string (MPPT) level data from a Fronius inverter, this custom component (available through HACS) makes it very easy:

For my two Fronius Primo 5.0, I used slave ID 1 and 2 respectively. Read modes 160 and 111 gave everything of interest datawise for me.

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399

What kind of more informations do you have comparing to FRONIUS integration or fronius HACS integration?

400

Modbus based components might contain some more datapoints like stated in Fronius inverter integration - #398 by AussieByrd above and maybe be slightly more stable / able to poll data more frequently.

Other HTTP / SolarAPI based custom components will probably provide the same data as the core integration.

401

The key thing I get/use is individual string (MTPP) level power production. This makes it easier to check everything is working as it should (and help me identify a short on the lower-power string on one of my inverters recently).

402

Hi all ,

I think of buying of Fronius inverter and BYD battery combination. Most likely the following questions go without saying, but I want to be sure as home assistant compatibility is the highest priority for me :slight_smile:

  • Does the integration also provide BYD battery information? What can be controlled via home assistant? I would be grateful if someone could post a screenshot of the device page
  • Does Fronius have any ‘installer access’? Is it necessary / recommended to have this rights? If yes, I will force my installer already in advance to give it to me.

Best regards

403

My Fronius inverter came with all access allowed. That should be the case for any install. You don’t need it for the HA integration though, it just needs to be connected to your network.

404

Hi :wave:!
At least for Symo devices (Gen24 may differ) there are 3 levels of access:

  • User
  • Admin
  • Service

You will need Admin to enable API access as for newer models it is disabled by default. You can then also enable ModbusTCP access to get finer grained values than via http API.
You don’t really need “Service” access.

Fronius SolarAPI (http) is read-only. If you want to write data (like overriding loading/using of battery) afaik (I don’t have a battery) you will need to use Modbus (SunSpec). You can find more infos about that somewhere here in the forums.

Infos about BYD batteries are provided by the default integration. You can have a look at the unittest fixtures to see which exactly. (See “storage” and “powerflow”).

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405

I am just starting out with home assistant and would like to integrate my photovoltaic system. It consists of a Fronius Symo 10M inverter. Hopefully, a Gen24 with a smart meter will join as well, soon.

I am using this Fronius inverter integration and it mostly works fine. I’d just like to see the MPPT data for both strings, DC1 and DC2. At the moment only entities DC voltage and current are offered and they seem to correspond to string 1. I looked through the strings.json file in github and found entity definitions for DC and DC2. It seems the feature is included but these entities are not listed when I look for values from the inverter.

Any hints on what I need to do?
Many thanks

406

Fronius’ SolarAPI doesn’t provide values for for each string.
You could try to get these via ModbusTCP if you really need those.

407

Thanks! I had a look through the API Spec and multiple strings are only supported for Gen24/Tauro. Is this supported for them in Home Assistant?

408

No. Only

"GetInverterRealtimeData.cgi?Scope=Device&"
"DeviceId={}&"
"DataCollection=CommonInverterData"

Is used currently.

409

I meanwhile installed a second inverter, a Gen 24 6.0. There I can see the individual string data as the API specification indicates.

410

Hello, I recently installed HA. I have a Fronius Eco 27 ​​inverter to integrate. I had already integrated the inverter for 1 day, in the evening the connection broke off and it didn’t come back. So I deleted the integration and tried again a few times without success, then it worked again for a few hours then it went away again. I deleted the integration again and now I can no longer get a connection. The following is displayed: Fronius SolarNet
Configure the IP address or local hostname of your Fronius device.

Connection Failed
Host
Does anyone have an idea what else I could do?

411

I’d recommend checking HA logs to see why disconnected.

Is the inverter connected via wifi or Ethernet to your home network?

412

Ethernet connection