Calculating value from a few sources doesn't work into template

Configuration
1

Hi,

I’ve very frustrating issue (or it’s lack of my knowledge) - I can’t calculate total value from three sensors (3 phases). I need to calculate total imported power as one value. I tried to use template as below:

- sensor:
  - name: Total energy import
    unit_of_measurement: "kWh"
    device_class: energy
    state: >   
        {% set state =  (
                        (states('sensor.sdm630_energy_total_0') | float(0)) +
                        (states('sensor.sdm630_energy_total_1') | float(0)) +
                        (states('sensor.sdm630_energy_total_2_2') | float(0)) 
                        )
        %}

But the result of calculation is still 0 (zero):

image

Of course, particular variables for phases are available and visible:

type: vertical-stack
cards:
  - type: entities
    entities:
      - entity: sensor.sdm630_energy_total_0
      - entity: sensor.sdm630_energy_total_1
      - entity: sensor.sdm630_energy_total_2_2
      - entity: sensor.total_energy_import
    title: Imported Energy
    state_color: false
    show_header_toggle: true

Where the problem is? I used similar method in older HA version using value_template directive but in new HA this is not usable…

I’m using Home Assistant Core 2023.1.7, Frontend 20230110.0 - latest

Best Regards,
pancio

2 
- sensor:
  - name: Total energy import
    unit_of_measurement: "kWh"
    device_class: energy
    state: >   
        {{
          states('sensor.sdm630_energy_total_0') | float(0) +
          states('sensor.sdm630_energy_total_1') | float(0) +
          states('sensor.sdm630_energy_total_2_2') | float(0)         
        }}
    availability: >   
        {{
          states('sensor.sdm630_energy_total_0') | is_number and
          states('sensor.sdm630_energy_total_1') | is_number and
          states('sensor.sdm630_energy_total_2_2') | is_number                
        }}
3

Many thanks! @tom_l,
Now my sensor return good value.

image
image646×869 58.4 KB

I understand, I had syntax issue with ‘set state’ or other?
Is the availability directive use to avoid visible when particular sensor not exist or has undefined state?

Best Regards,

4

Yes compare your template to mine.

You could also have done this:

    state: >   
        {% set state =  (
                        (states('sensor.sdm630_energy_total_0') | float(0)) +
                        (states('sensor.sdm630_energy_total_1') | float(0)) +
                        (states('sensor.sdm630_energy_total_2_2') | float(0)) 
                        )
        %}
        {{ state }}

But it is a bit redundant. The main take-away is:

Also yes, the availability template will make the state unavailable if one or more of your source sensors are unavailable.