Danfoss Ally TRV room load balancing for Zigbee2MQTT

ally_trv_load_balancing_z2m.yaml

blueprint:
  domain: automation
  name: Danfoss Ally Room Load Balancing
  description: > 
    Calculate and send room mean load every 15min to
    load balance TRVs in the same room, via zigbee2mqtt.
    Uses Danfoss recommended calculation.
  input:
    ally_devices:
      name: Danfoss Ally TRV Device
      description: Select all Danfoss Ally TRVs located in the same room
      selector:
        device:
          entity:
            domain: climate
          multiple: true
variables:
  devices: !input ally_devices
  devices_all_entities: "{{ devices|map('device_entities')|sum(start=[]) }}"
  room_load_mean: >
    {% set load_estimate_entities = devices_all_entities
    |select('match', 'sensor.*_load_estimate$') %}
    {% set valid_states = expand(load_estimate_entities)
    |selectattr('last_changed', 'ge', now() - timedelta(minutes = 90))
    |map(attribute="state")|map("int",-8000)|select("ge",-500)|list %}
    {% if valid_states|count == 0 %}
      Unknown
    {% else %}
      {{ (valid_states|sum / valid_states|count) | round }}
    {% endif %}
  target_load_room_mean_entities: >
    {{
      devices_all_entities
      |select('match', 'number.*_load_room_mean$')
      |list
    }}
trigger:
  - platform: time_pattern
    minutes: /15
condition:
  - condition: template
    value_template: "{{ is_number(room_load_mean) }}"
action:
- service: number.set_value
  target:
    entity_id: "{{ target_load_room_mean_entities }}"
  data:
    value: "{{ room_load_mean }}"
mode: single