How to save a value at the start of an automation and then print it later?

Configuration
1

Hi everyone, i have an automation that stops HVAC when power consumption is too high and then sends me a notification.
I set the notification as the last thing to be done to be sure all the other were completed, but i get into the situation in which the power reading that is printed into the notification is “too late”, so i would need to read it, save it somewhere, turn HVAC off and then send the notification with the correct value… is it possible?

2

Post the automation.

3

The automation fires this script

accensione_pdc_soggiorno:
  sequence:
    # Accendo PDC
    - service: climate.turn_on
      entity_id: climate.daikin_soggiorno
    - delay: '00:00:05'
    # Imposto temperatura a 20°C
    - service: climate.set_temperature
      target:
        entity_id: climate.daikin_soggiorno
      data:
        temperature: '20'
        hvac_mode: 'heat'
    - delay: '00:00:15'
    # Imposto in modalità Eco
    - service: climate.set_preset_mode
      target:
        entity_id: climate.daikin_soggiorno
      data:
        preset_mode: "Eco"
    - delay: '00:00:05'
    # Ventola in modalità Auto
    - service: climate.set_fan_mode
      target:
        entity_id: climate.daikin_soggiorno
      data:
        fan_mode: "Auto"
    # Avvio timer
    - service: timer.start
      target:
        entity_id: timer.attesa_avvio_pdc
    - delay: '00:00:05'
    # Invio notifica
    - service: notify.christian
      data_template:
        title: '*PDC Soggiorno*'
        message: >
            Accesa in autoconsumo
            
            Lettura Contatore: {{states('sensor.lettura_contatore_filtrata')}} W,
            Temperatura Attuale: {{states('sensor.temperatura_pt')}}°C

As you can see the reading in W i get is affected by the HVAC already turned on

4

This script is called when “power consumption is too high”. That means the automation that calls this script is triggered when power exceeds a threshold value. Pass that power value as a variable to the script.

Reference: Passing variables to scripts