Add /multiplicate values from more sensors

Configuration
1

When having a 3 phase appliances with symetrical load, i would like to save a bit on sensors.
Is there a way to multiplicate one sensor with 3?

And add values from several sensors together.

Kind regards
Jens Peter

2

Sure you can do that… by adding another sensor:

3

Thx.

Looks interesting, but I’m total newbe :blush:

I made a simpel template, adding 2 values from sensors.
The calculation are correct - I´m happy

But next question, how do i get this template visibel on my dashbord?

template:

  • sensor:

    • name: “Samlet forbrug”
      unit_of_measurement: “kWh”
      state: >
      {% set kokken1 = states(‘sensor.komfur_energy’) | float %}
      {% set kokken2 = states(‘sensor.ovn_channel_1_energy’) | float %}

      {{ ((kokken1 + kokken2) ) | round(2, default=0) }}

4

Add it to an entities card.