Enery monitoring: template/sensor does not update its value

Configuration
1

Hi all,

I have a combined heating system / water heater and I want to measure hot water / heating separately.

As input, i have a SmartMeter that I can read with the edl21 integration.
It will export:

sensor.waermepumpe_electricity_id = (censored)
sensor.waermepumpe_positive_active_energy_in_tariff_t = 11958983.0
sensor.waermepumpe_sum_active_instantaneous_power = 1063.6

Unfortunately, the only thing I can fetch from my heater is a value called “Heizstufe” [0…2] which tells the current activity:
0: Idle
1: Heating
2: Hot Water

Therefore, I would like to split the power measured by my meter onto the activities:
sensor:

sensor:
    - platform: scrape
      #resource: http://servicewelt.fritz.box/?s=1,0
      resource: http://192.168.188.59/?s=1,0
      select: "#werte>#content>div+div+div+div+div tr+tr>td+td"
      value_template: "{{ value|int }}"
      name: tecalor_heizstufe

template:
    - sensor:
        name: tecalor_heizung_leistung
        unique_id: tecalor_heizung_leistung
        device_class: power
        state_class: measurement
        unit_of_measurement: "W"
        #else branch set to nonzero values for debugging purposes
        state: >-
          {% if (states('sensor.Heizstufe')|int == 0) or (states('sensor.Heizstufe')|int == 1) %}
            {{ states('sensor.waermepumpe_sum_active_instantaneous_power ')|float }}
          {% else %}
            0.1
          {% endif %}
          
    - sensor:
        name: tecalor_warmwasser_leistung
        unique_id: tecalor_warmwasser_leistung
        device_class: power
        state_class: measurement
        unit_of_measurement: "W"
        #else branch set to nonzero values for debugging purposes
        state: >-
          {% if (states('sensor.Heizstufe')|int == 2) %}
            {{ states('sensor.waermepumpe_sum_active_instantaneous_power ')|float }}
          {% else %}
            0.2
          {% endif %}

What I observe now:
If the “IF” does not match, I can see the values 0.1 / 0.2 shown in the ELSE branch.
But if it matches, I will only get
sensor.tecalor_heizung_leistung = unavailable

I already tried all kinds of typecasting to waermepumpe_sum_active_instantaneous_power, but nothing changes :frowning:

Do you have any Idea, if I need to manually trigger the template?

BR
Nippey

2

You have to give default value to “int” and “float” (you probably have errors in the logfiles), like this (see below) but you can choose any other number than 0 as you are testing the value equal to 0, so if the entity is unknown/unavailable the value will be 0 by default… we should probably use 3 as default for the expression testing equal to “0”:

sensor:
    - platform: scrape
      #resource: http://servicewelt.fritz.box/?s=1,0
      resource: http://192.168.188.59/?s=1,0
      select: "#werte>#content>div+div+div+div+div tr+tr>td+td"
      value_template: "{{ value|int(default=0) }}"
      name: tecalor_heizstufe

template:
    - sensor:
      - name: tecalor_heizung_leistung
        unique_id: tecalor_heizung_leistung
        device_class: power
        state_class: measurement
        unit_of_measurement: "W"
        #else branch set to nonzero values for debugging purposes
        state: >-
          {% if (state('sensor.Heizstufe')|int(default=3) == 0) or (state('sensor.Heizstufe')|int(default=0) == 1) %}
            {{ states('sensor.waermepumpe_sum_active_instantaneous_power ')|float(default=0) }}
          {% else %}
            0.1
          {% endif %}
          
      - name: tecalor_warmwasser_leistung
        unique_id: tecalor_warmwasser_leistung
        device_class: power
        state_class: measurement
        unit_of_measurement: "W"
        #else branch set to nonzero values for debugging purposes
        state: >-
          {% if (state('sensor.Heizstufe')|int(default=0) == 2) %}
            {{ states('sensor.waermepumpe_sum_active_instantaneous_power ')|float(default=0) }}
          {% else %}
            0.2
          {% endif %}

What is the value of “sensor.tecalor_heizstufe” ?
Any error in home-assistant.log ?

3

Awesome, adding default values worked!
Now, I’ll have to wait some time to see if nonzero values for Heizstufe are working, too.

What is the value of “sensor.tecalor_heizstufe” ?

sensor.tecalor_heizstufe = 0
In summer, basically 0 almost all day long.
Shot periods of 2 for some minutes each day.
Difficult to debug :smiley:

Any error in home-assistant.log ?

2022-08-12 13:37:13.562 WARNING (MainThread) [homeassistant.components.sensor] Setup of sensor platform scrape is taking over 10 seconds.

I saw this message before, and just assumed, that after 10 seconds, it will work fine.
Message is still there, but it is working now!

BR
Nippey

4

Hi @browetd,

adding the default values removed the errors. But the conditional was still not working.
The error was actually sitting in front of the screen, missing an obvious typo. []tecalor_heizstufe != Heizstufe]
(Which didn’t show up in the logs)

What I learned:
Even if default values will be quite useful (and will use them), they will hide any mismatches/typos of the entity names.

Thank you!

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