Group name as a variable in a card to report on all members of the group

Configuration Frontend
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1

Can this even be done? I’m using “config-template-card” to show current power usage of items in a group. I’d like to pass in a group as a variable, then use a template to find all the entity members of the group. In the example below, sensor.all_fans_pc_power is the group, everything else is a member.

I’ve tried a variety of template approaches, but nothing seems to work. Any thoughts? Is this even possible? Please see details and attempts below.

Thanks!

Attempt 1:

Provides a LIST

{{ state_attr( 'sensor.all_fans_pc_power', 'entities') }}

results in

Result

[ “sensor.office_fan_fan_power”, “sensor.morpheus_fan_power”, “sensor.guest_fan_fan_power”, “sensor.master_fan_fan_power”, “sensor.familyroom_fan_fan_power” ]

Result type: list

This template listens for the following state changed events:

  • Entity: sensor.all_fans_pc_power

Attempt 2:

Which seems like the right content for the entities:

{{ expand(state_attr( 'sensor.all_fans_pc_power', 'entities')) }}

Result type: string

This template listens for the following state changed events:

  • Entity: sensor.all_fans_pc_power
  • Entity: sensor.familyroom_fan_fan_power
  • Entity: sensor.guest_fan_fan_power
  • Entity: sensor.master_fan_fan_power
  • Entity: sensor.morpheus_fan_power
  • Entity: sensor.office_fan_fan_power
type: custom:config-template-card
variables:
  - entity: sensor.all_fans_pc_power
  - entity: sensor.familyroom_fan_fan_power
  - entity: sensor.guest_fan_fan_power
  - entity: sensor.master_fan_fan_power
  - entity: sensor.morpheus_fan_power
  - entity: sensor.office_fan_fan_power

entities:
  - entity: sensor.all_fans_pc_power
  - entity: sensor.familyroom_fan_fan_power
  - entity: sensor.guest_fan_fan_power
  - entity: sensor.master_fan_fan_power
  - entity: sensor.morpheus_fan_power
  - entity: sensor.office_fan_fan_power
element:
  type: custom:bar-card
  entities: |-
    ${vars.filter(v => states[v.entity].state > 0).sort((v1,v2) =>
    states[v2.entity].state-states[v1.entity].state)}
  direction: right
  entity_row: true
  min: 0
  max: >-
    ${ Math.max(...vars.map(v => states[v.entity]).filter(e => !!e).map(e =>
    e.state).filter(n => !isNaN(n))) }
  height: 20px
  stack: vertical
  decimal: 0
  icon: mdi:flash
  positions:
    icon: "off"
    indicator: outside
    name: inside
    value: inside

The resulting output looks like this

Screenshot 2025-09-19 at 1.15.06 PM
Screenshot 2025-09-19 at 1.15.06 PM477×187 18.2 KB

2

I figured out a template that renders the correct text, but the card just gets the spinning circle when I try to implement it:

variables: 
  - entity: sensor.all_fans_pc_power
  {% for each in expand(state_attr( 'sensor.all_fans_pc_power', 'entities')) %}- entity: {{ each.entity_id }}
  {% endfor %}
entities:
  - entity: sensor.all_fans_pc_power
  {% for each in expand(state_attr( 'sensor.all_fans_pc_power', 'entities')) %}- entity: {{ each.entity_id }}
  {% endfor %}

Provides the following output in the Developer Tools/Template editor

Result

variables:
 - entity: sensor.all_fans_pc_power
 - entity: sensor.familyroom_fan_fan_power
 - entity: sensor.master_fan_fan_power
 - entity: sensor.guest_fan_fan_power
 - entity: sensor.morpheus_fan_power
 - entity: sensor.office_fan_fan_power 
entities:
 - entity: sensor.all_fans_pc_power
 - entity: sensor.familyroom_fan_fan_power
 - entity: sensor.master_fan_fan_power
 - entity: sensor.guest_fan_fan_power
 - entity: sensor.morpheus_fan_power
 - entity: sensor.office_fan_fan_power

Result type: string

This template listens for the following state changed events:

  • Entity: sensor.all_fans_pc_power
  • Entity: sensor.familyroom_fan_fan_power
  • Entity: sensor.guest_fan_fan_power
  • Entity: sensor.master_fan_fan_power
  • Entity: sensor.morpheus_fan_power
  • Entity: sensor.office_fan_fan_power