Changing a ‘select’ function based on heating being on

Configuration
1

Hi all,
I’m wanting to stop my home battery from discharging while my air source heat pump is in operation during the day (it drains it so quickly that it becomes almost worthless). I don’t want to turn the whole system off as this stops any solar that is being produced from being used as well as the battery.

What I am hoping to achieve is to change:
Select. solax_discharger_end_time_1
From whatever time it is set to to the nearest 15 minute window (it can only be changed to :00 :15, :30 or :45 past the hour)

I’d also want to change
Select. solax_discharger_start_time_2
The same conditions apply, but I’d want to set that to a time a few hours in advance.

I’d also want the battery to kick back in when the heating reaches the target temperature; so essentially reverse the above process.

How would I go about this? I’m assuming I’ll need scripting and I don’t know where to start on that one.

2

Your description is a little sparse, so this might not be exactly what you need…

trigger:
  - platform: state
    entity: climate.EXAMPLE
    attribute: hvac_mode
    to:
      - cooling
      - heating
    id: active
  - platform: state
    entity: climate.EXAMPLE
    attribute: hvac_mode
    to:
      - idle
      - off
    from:
      - cooling
      - heating
condition: []
action:
  - variables:
      end_select: 'select.solax_discharger_end_time_1'
      start_select: 'select.solax_discharger_start_time_2'
  - service: select.select_option
    target:
      entity_id: "{{end_select if trigger.id == 'active' else start_select}}"
    data:
      option: |
        {% set next_quarter = now().minute % 15 %}
        {{ (now() + timedelta(minutes = 15 - next_quarter)).strftime('%H:%M') }}
  - service: select.select_option
    target:
      entity_id: "{{start_select if trigger.id == 'active' else end_select}}"
    data:
      option: |
        {{ (now() + timedelta(hours = 3)).strftime('%H:00') }}
3

Thanks for that, I’ll see how I get on.