sungrow battery maintenance home assistant

configuration.yaml

automation:
  - id: dbd6c805-f5cf-4c8b-9224-6163a460d620
    alias: Inverter - battery maintenance # full cycle discharge and re-charge
    trigger:
      # TODO trigger when the battery charge/discharge today registers are below some threshold (however these registers
      # aren't resetting the way they should currently)

      # In meantime, we'll just do this at the once per month
      - platform: time
        at: "01:00:00" # 1 am
    condition:
      - condition: template
        value_template: "{{ now().day == 1 }}" # but only on first of the month

    variables:
      ems_mode: |
        {% set ems = states('sensor.inverter_ems_mode_raw') | int(default=0) %}
      forced_battery_mode: |
        {% set mode = states('sensor.inverter_forced_battery_mode_raw') | int(default=0) %}
    action:
      # snapshot scene of current charge/discharge power and reserve battery %
      - service: scene.create
        data:
          scene_id: inverter_battery_maintenance
          snapshot_entities:
            - input_number.inverter_forced_mode_battery_power
            - input_number.inverter_battery_reserve

      # set reserve battery power to 0
      - service: input_number.set_value
        target:
          entity_id: input_number.inverter_battery_reserve
        data:
          value: 0

      # set charge/discharge power to 1kW
      - service: input_number.set_value
        target:
          entity_id: input_number.inverter_forced_mode_battery_power
        data:
          value: 1000

      - service: script.inverter_force_battery_discharge
      - delay: 00:00:30

      # Wait until no further battery power to become idle
      - wait_for_trigger:
          - platform: state
            entity_id: sensor.inverter_battery_power_raw
            to: 0
            for:
              minutes: 5

      # Start charging steadily at charge power until it becomes idle (reaches its max)
      - service: script.inverter_force_battery_charge
      - delay: 00:00:30

      # Wait until no further battery power to become idle
      - wait_for_trigger:
          - platform: state
            entity_id: sensor.inverter_battery_power_raw
            to: 0
            for:
              minutes: 5

      - service: script.inverter_force_battery_stop
      - delay: 00:00:10

      # Apply snapshotted scene from beginning of automation
      - service: scene.apply
        data:
          scene_id: inverter_battery_maintenance

      # Reset the battery mode to whatever it was before
      - service: modbus.write_register
        data_template:
          address: 13049 # 13050-13051
          slave: 1
          value:
            - "{{ ems_mode }}"
            - "{{ forced_battery_mode }}"
          hub: SungrowSHx