Include Battery data

[Druide85]

Thanks for the nice plug-in,

However, is it possible to include also the power flow to the battery or back from the battery. This would be a nice additional feature.

Thanks a lot

[longzheng]

Sorry I don't have a Fronius-compatible battery system (I have a Tesla Powerwall) so I don't see any battery data in the API to test against.

Do you have any sample data at http://[your-fronius-ip]/solar_api/v1/GetPowerFlowRealtimeData.fcgi?

[systemx-xx]

Battery SOC sits in Body.Data.Inverters.1.SOC, I think the batteries wattage in/out is P_Akku

{
   "Body" : {
      "Data" : {
         "Inverters" : {
            "1" : {
               "Battery_Mode" : "normal",
               "DT" : 1,
               "E_Day" : null,
               "E_Total" : 546947.51694444439,
               "E_Year" : null,
               "P" : 7327.86865234375,
               "SOC" : 100.0
            }
         },
         "Site" : {
            "BackupMode" : false,
            "BatteryStandby" : true,
            "E_Day" : null,
            "E_Total" : 546947.51694444439,
            "E_Year" : null,
            "Meter_Location" : "grid",
            "Mode" : "bidirectional",
            "P_Akku" : 2.0681488513946533,
            "P_Grid" : -3886.98,
            "P_Load" : -3440.88865234375,
            "P_PV" : 7529.881591796875,
            "rel_Autonomy" : 100.0,
            "rel_SelfConsumption" : 46.956199893719628
         },
         "Smartloads" : {
            "Ohmpilots" : {}
         },
         "Version" : "12"
      }
   },
   "Head" : {
      "RequestArguments" : {},
      "Status" : {
         "Code" : 0,
         "Reason" : "",
         "UserMessage" : ""
      },
      "Timestamp" : "2022-08-26T01:33:09+00:00"
   }
}

[longzheng]

@systemx-xx Hey mate, I saw you made a fork at https://github.com/systemx-xx/homebridge-fronius-inverter-lights and added the SOC support.

If you want to open a PR I'm more than happy to merge it back in.

[systemx-xx]

hey @longzheng I have not had a chance to play around with that since I forked it as displaying the inverter data using lights etc is pretty sub par to be honest. I really wish Apple would open up the ability for custom displays.

[longzheng]

Fair enough. I noticed the homebridge-tesla-powerwall plugin uses a fan speed to display energy flow which has the advantage of showing actual values in the overview.

I've been using that plugin since getting a Powerwall and have been pretty happy with it. I wonder if this plugin should also do the same.

[systemx-xx]

Ah thats clever, yeah thats quite a bit nicer.

[longzheng]

I've just published a new version 1.5.1 that adds a battery accessory if you enable it in the config.

        {
            "name": "Fronius inverter",
            "platform": "FroniusInverterLightsPlatform",
            ...
            "battery": true
        },

Since I don't have a battery connected to my Fronius inverter I can't test it myself so let me know if there's any issues.

[Druide85]

Thanks a lot. It works well. Best regards Thomas Von meinem iPhone gesendetAm 24.06.2023 um 10:20 schrieb Long Zheng @.***>: I've just published a new version 1.5.1 that adds a battery accessory if you enable it in the config. { "name": "Fronius inverter", "platform": "FroniusInverterLightsPlatform", ... "battery": true },

Since I don't have a battery connected to my Fronius inverter I can't test it myself so let me know if there's any issues.

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