Hive TRV Load Balancing Home Assistant Blueprint

hive_trv_load_balancing_blueprint.yaml

blueprint:
  domain: automation
  name: Hive TRV 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 (Hive TRV is based off Danfoss).
  input:
    hive_trv_devices:
      name: Hive TRV Device
      description: Select all Hive TRVs located in the same room
      selector:
        device:
          manufacturer: Hive
          entity:
            domain: climate
          multiple: true
variables:
  devices: !input hive_trv_devices
  room_load_mean: >
    {% set load_estimate_entities = devices|map("device_entities")
    |sum(start=[])|select('match', '.*load_estimate$')|list %}
    {% set valid_states = expand(load_estimate_entities)|select
    |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 %}
trigger:
  - platform: time_pattern
    minutes: /15
condition:
  - condition: template
    value_template: "{{ room_load_mean != 'Unknown' }}"
action:
- repeat:
    for_each: !input hive_trv_devices
    sequence:
      - service: mqtt.publish
        data:
          topic: "zigbee2mqtt/{{ device_attr(repeat.item, 'name') }}/set/load_room_mean"
          payload_template: "{{ room_load_mean }}"
mode: single