Configuration for Huawei Inverter

[karliwalti]

I will post first discussion entry as token of appreciation. Thank you very much for making this integration. I installed it today and it works out of the box.
I use it in combination with the Huawei SUN inverter and the huawei_solar integration https://github.com/wlcrs/huawei_solar/. there the virtual grid sensor is inverted, so I changed the configuration to:

pgrid: "{{states('sensor.power_meter_active_power') | float * -1}}"

I havent tested the optional parameters for inverter input and battery. Without, it already works fine. Some more testing needed to see how battery charging will behave in low and high PV production situations.

[marq24]

thanks - I have just added this info to the readme.md...

[ptc]

pgrid: "{{states('sensor.power_meter_active_power') | float * -1}}"

I havent tested the optional parameters for inverter input and battery. Without, it already works fine. Some more testing needed to see how battery charging will behave in low and high PV production situations.

@karliwalti Does it work for you with inverter input and battery parameters set? In my case (also having a Sun2000 & Luna2000), after the battery is full, the charging starts but goes up to 11kWh, while discharging the luna2000 battery and taking additional energy from the grid.

[ptc]

Hi @karliwalti!
Thanks for your feedback. Is sensor.spare_power_for_charging_car a template sensor (based on the name)? If so, how is it calculated?

[karliwalti]

Oh, yes sorry. Defined in templates:

    - name: "Spare Power for Charging Car"
       unit_of_measurement: "W"
      state: > 
        {% set grid_active_power = (states('sensor.power_meter_active_power') | default(0) | float(0) * -1) %}
        {% set battery_active_power = (states('sensor.battery_charge_discharge_power_with_loss') | default(0) | float(0) * -1) %}
        {% if battery_active_power < 0.0 %} 
            {# battery is charging, add margin #}
            {% if battery_active_power < -1200.0 %} 
                {# battery is charging over a threshold, expose excess #}
                {{ battery_active_power + 1200.0 + grid_active_power }}
            {% else %} 
                {{ grid_active_power + 0}}
            {% endif %}
        {% else %}
          {# battery is feeding, sum up power fed into house #}
          {{ battery_active_power + grid_active_power }}
        {% endif %}

and
(source: huawei-solar-power-flow-card-package.yaml from https://github.com/heinemannj/home-assistant-config/tree/00a67346860ad1a2c6fdf5a7f7ce4e994aa95099/packages)
```

  # Correction for Battery Charge/Discharge power (with loss)
  #
  - name: battery_charge_discharge_power_with_loss
    unique_id: battery_charge_discharge_power_with_loss
    #friendly_name: "Battery Charge/Discharge power"
    state_class: measurement
    device_class: power
    unit_of_measurement: "W"
    icon: mdi:solar-power
    state: >-
      {% set inv_input_power = states('sensor.inverter_input_power')|float(0) %}
      {% set inv_active_power = states('sensor.inverter_active_power')|float(0) %}
      {{ (inv_input_power - inv_active_power)|float(0)|round(0) }}
    availability: >-
      {{ (states('sensor.inverter_input_power')|is_number)
          and (states('sensor.inverter_active_power')|is_number) }}

[ptc]

After an exchange with Go-E support, I was able to identify the source of my problem: pAkku is expected to be negative when the home battery is charging and positive when discharging. By fixing this—multiplying my Luna2000 sensor value by -1—surplus charging now seems to work. This might be another useful detail for your documentation @marq24.

[marq24]

just check, if the adjusted main readme is easier to understand... https://github.com/marq24/ha-goecharger-api2?tab=readme-ov-file#service-fields-explained

[ptc]

Yes, it is.