How to do a sum of several sensors?

Configuration
1

Hi,

please can someone help me create new sensor which will do a summary of existing?

template:
  - sensor:
    - name: "Bbathroom consumption"
      unique_id: bbathroom_consumption_heating
      state: "{{ ((states('sensor.bbathroom_time') | float * 0.75) | round(2) )}}"
      availability: "{{ states('sensor.bbathroom_time') | is_number }}"
      unit_of_measurement: "kWh" 
      device_class: energy
      state_class: total_increasing
      
  - sensor:
    - name: "Livingroom consumption"
      unique_id: livingroom_consumption_heating
      state: "{{ ((states('sensor.livingroom_time') | float * 4) | round(2) )}}"
      availability: "{{ states('sensor.livingroom_time') | is_number }}"
      unit_of_measurement: "kWh" 
      device_class: energy
      state_class: total_increasing 
      
  - sensor:
    - name: "Adams room consumption"
      unique_id: adamsroom_consumption_heating
      state: "{{ ((states('sensor.adams_room_time') | float * 0.95) | round(2) )}}"
      availability: "{{ states('sensor.adams_room_time') | is_number }}"
      unit_of_measurement: "kWh" 
      device_class: energy
      state_class: total_increasing
2

There was a similar question.
Look here: https://community.home-assistant.io/t/how-to-sum-energy-and-power-sensors/172779
Maybe it is helpful.

3 
    - name: "Total room consumption"
      unique_id: total_consumption_heating
      state: >
        {{ (states('sensor.bbathroom_consumption') | float(0) +
            states('sensor.livingroom_consumption') | float(0) +
            states('sensor.adams_room_consumption') | float(0))
          | round(2) }}
      availability: >
        {{ states('sensor.bbathroom_consumption') | is_number and
           states('sensor.livingroom_consumption') | is_number and
           states('sensor.adams_room_consumption') | is_number }}
      unit_of_measurement: "kWh" 
      device_class: energy
      state_class: total_increasing
4

thank you very much!

5

You’re welcome!

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