Use the modern configuration

[c0mplex1]

Please review the examples in the readme documentation.
These examples are still based on the legacy configuration, instead of the supported modern configuration.

In case of ECU firmware issues

utility_meter:
  lifetime_energy:
    source: sensor.ecu_xxxxxxxxxxxx_current_power

template:
  - sensor:
      - name: "Lifetime Energy (kWh)"
        unit_of_measurement: "kWh"
        state: "{{ states('sensor.lifetime_energy')|float(0) / 1000 }}"

The temperature sensors

template:
  - sensor:
      - name: "Temperature non numeric 4080xxxxxxxx"
        state: "{{ states('sensor.inverter_4080xxxxxxxx_temperature')|float(0) }}"
        unit_of_measurement: "°C"

      - name: "Temperature non numeric 8060xxxxxxxx"
        state: "{{ states('sensor.inverter_8060xxxxxxxx_temperature')|float(0) }}"
        unit_of_measurement: "°C"

[HAEdwin]

Both corrected, thanx @c0mplex1