Adding sonoff pow energy sensor values to switch entity as attributes

Sure.

This is all the script:

script:
  dss_spegni_carico:
    sequence:
      - service: mqtt.publish
        data_template:
          topic: "ultimocaricooff"
          payload: >-
                  {%- macro dss_spegni_primo_carico() -%}
                  {%- set entity_carico_da_spegnere = states.input_select.lista_carichi.attributes.options|join(',')-%}
                  {%- for item in entity_carico_da_spegnere.split(',') if (states(item) != 'off') and (item != '')-%}
                  {{ item }}{% if not loop.last %},{% endif %}
                  {%- endfor -%}
                  {%- endmacro -%}  
                  {{ dss_spegni_primo_carico().split(',') | first }}  
          retain: true
      - service: mqtt.publish
        data_template:
          topic: "dataultimocaricooff"
          payload: "{{ now().strftime('il %d/%m/%y alle %H:%M') }}"
          retain: true
      - service: homeassistant.turn_off
        data_template:
          entity_id: >-
            {% set attribute = 'Power' %}
            {% set value = 25 %}
            {% set entities = states | selectattr('entity_id','in', states.input_select.lista_carichi.attributes.options) | list %}
            {% set on_entities = entities | selectattr('state','eq','on') | list %}
            {% set on_and_above_value = on_entities | selectattr('attributes.%s'%attribute, '>', value) | list %}
            {{ on_and_above_value | first }}
            {{ dss_spegni_primo_carico().split(',') | first }}
      - service:  input_boolean.turn_on
        entity_id: input_boolean.check_accensione_automatica_carico
      - service:  input_boolean.turn_on
        entity_id: input_boolean.notifica_spegnimento_carico
      - delay:
          seconds: 30
      - service: script.controllo_assorbimento

this:

            {% set attribute = 'Power' %}
            {% set value = 25 %}
            {% set entities = states | selectattr('entity_id','in', states.input_select.lista_carichi.attributes.options) | list %}
            {% set on_entities = entities | selectattr('state','eq','on') | list %}
            {% set on_and_above_value = on_entities | selectattr('attributes.%s'%attribute, '>', value) | list %}
            {{ on_and_above_value | first }}
            {{ dss_spegni_primo_carico().split(',') | first }}

should only be

            {% set attribute = 'Power' %}
            {% set value = 25 %}
            {% set entities = states | selectattr('entity_id','in', states.input_select.lista_carichi.attributes.options) | list %}
            {% set on_entities = entities | selectattr('state','eq','on') | list %}
            {% set on_and_above_value = on_entities | selectattr('attributes.%s'%attribute, '>', value) | list %}
            {{ on_and_above_value | first }}