Template issues two sensors

Configuration
1

Hi

Sorry for the probable newbie question. Still learning here with everything. So I have a template that currently takes away the value of an AC Battery that is connected to a consumer unit that has a CT Clamp.

The script below works fine when the battery is in a charging state as the battery CT reports a minus number

What I was looking for is the same as I have but when the battery reports a positive value it minuses it from the consumer unit reading.

This is what I currently have.

template:

  • sensor:
    • name: Our House minus battery
      unit_of_measurement: “W”
      state: >-
      {% set TARGET = states(‘sensor.myenergi_harvi_14931930_none_ct1’)|float %}
      {% set SOURCE = states(‘sensor.myenergi_harvi_14931930_power_ct_ac_battery’)|float %}
      {{ (SOURCE + TARGET) | round(2) }}
      attributes:
      target: “{{ states(‘sensor.myenergi_harvi_14931930_none_ct1’) }}”
      source: “{{ states(‘sensor.myenergi_harvi_14931930_power_ct_ac_battery’) }}”
2

I think you forgot to post what you currently have.