How to sum energy and power sensors?

Configuration
41

I am no expert at all and the only thing that is preventing me from updating is the lack of time.
I remember the reason at that time for not doing the next update was that something changed in the handling of groups so I couldn´t use my groups anymore. I guess I should have dealt with it anyway :wink:

42

You need the entity_id list with old template configurations to get updates automatically if you are piecing together strings to make the entity_id’s in the templates. The old templates used to search the template code for valid entity_id’s and automatically register listeners that way. When you dynamically find entity_d’s in a template, that functionality is lost. So you must list out the entities manually. This was changed early 2020. Templates now register entity_id’s without users needing to specify an ‘update list’, even when piecing together entity_id’s.

43

Thanks for clearing this up :slight_smile:

44

I have following configuration to sum the power of my plugs:

group:
  wohnzimmer_strom_sensors:
    name: Group Wohnzimmer Power
    icon: mdi:lightning-bolt
    all: true
    entities:
      - sensor.computer_energy_power
      - sensor.computer_peripherie_energy_power
      - sensor.tasmota_energy_power
      - sensor.tasmota_energy_power_3
      - sensor.ventilator_power

sensor:
  - platform: template
    sensors:
      wohnzimmer_gesamt_power:
        unique_id: wohnzimmer_gesamt_power
        device_class: power
        friendly_name: "Stromverbrauch Wohnzimmer (aktuell)"
        value_template: >-
          {{ expand('group.wohnzimmer_strom_sensors') | map(attribute='state') | map('float')  | list | sum }}
        unit_of_measurement: "W"

  - platform: integration
    unique_id: kueche_gesamt_energy
    name: "Stromverbrauch Wohnzimmer (total)"
    source: sensor.wohnzimmer_gesamt_power
    unit_prefix: k
    method: left
    round: 2

The configuration works well, but only if all sensors are available. If one device is not available (because I removed it) the result is shown as “unavailable”.

My question is, how do I have to configure it so that 0 is used for the device that is currently offline?

45

how about creating a label “Energy” and sum up the power of all the sensors with that label. That way there should not be a problem if the label (group) contains one sensor more or less?

I tried to achiev this by creating a helper → template sensor, but could not get it to work so far. Any suggestions?

{% set total = 0 %}
{% for entity in states | selectattr('attributes.label', 'eq', 'Energy') %}
  {% if entity.state | float(-1) >= 0 %}
    {% set total = total + entity.state | float %}
  {% endif %}
{% endfor %}
{{ total | round(2) }}
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