Filtering energy readings

Energy
1

I have a Zigbee device that returns two entites:

sensor.hovedmaler_instantaneous_demand
sensor.hovedmaler_summation_delivered

Both devices can return invalid readings and as this is my main grid logger this means I have no working history of readings. For instant readings this happens like every 5 minutes and for summation this happens like 3-5 times daily).

So I thought, I’ll create a template sensor that takes the original readings and if they are the invalid readings, they will get ignored. These are the two filtering sensors I created:

template:
  - sensor:
    - name: "Hovedmåler Summation delivered (filtreret)"
      unique_id: "hovedmaler_summation_delivered_filtered"
      unit_of_measurement: "kWh"
      device_class: "energy"
      state_class: "total_increasing"
      state: "{{ states('sensor.hovedmaler_summation_delivered') }}"
      availability: "{{ states('sensor.hovedmaler_summation_delivered') != '281474976710.655' and is_state('sensor.hovedmaler_summation_delivered', 'unknown') == false }}"
    - name: "Hovedmåler Instantaneous demand (filtreret)"
      unique_id: "hovedmaler_instantaneous_demand_filtered"
      unit_of_measurement: "W"
      device_class: "power"
      state_class: "measurement"
      state: "{{ states('sensor.hovedmaler_instantaneous_demand') }}"
      availability: "{{ states('sensor.hovedmaler_instantaneous_demand') != '-8388608' and is_state('sensor.hovedmaler_instantaneous_demand', 'unknown') == false }}"

If we just focus on the instant reading first (the invalid reading occurs more often and has a smaller value), the value -8388608 must be ignored. But what I have created does not make the value be ignored.

Any idea how I can solve this problem?

2

I found a different solution. The device has a status property that I can check for. When the bad reading occurs, it contains CHECK_METER, otherwise it contains NO_ALARMS.

I use this availability check:

availability: "{{ state_attr('sensor.hovedmaler_summation_delivered','status') != 'CHECK_METER' }}"

Could probably also just use this (might even be better):

availability: "{{ state_attr('sensor.hovedmaler_summation_delivered','status') == 'NO_ALARMS' }}"

Still don’t know why my original check didn’t work, though.