owl_intuition.yaml

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# Owl Intuition - Energy Sensor                     #
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template:
  # State ensures:
  #  - value is not set until both solar and electricity readings have been received and are no longer unknown
  #  - reads the values in simple variables for elec and solar, to make if statements easier to read
  #  - protects value going negative if one sensor resets to zero before the other at around midnight
  - trigger:
    - platform: state
      entity_id: sensor.owl_intuition_electricity_power
    sensor:
      - name: "Owl Grid Power Now"
        unit_of_measurement: "W"
        state_class: measurement
        device_class: power
        state: >
          {% if is_state('sensor.owl_intuition_electricity_power', 'unknown') or is_state('sensor.owl_intuition_solar_generating', 'unknown') %}
            nan
          {% else %}
            {% set elec = states('sensor.owl_intuition_electricity_power') | float %}
            {% set solar = states('sensor.owl_intuition_solar_generating') | float %}
            {% if (float(elec) - float(solar)) < 0 %}
              0
            {% elif (float(elec) - float(solar)) > 0 %}
              {{ float(elec) - float(solar) }}
            {% endif %}
          {% endif %}

  # State ensures:
  #  - value is not set until both solar and electricity readings have been received and are no longer unknown
  #  - reads the values in simple variables for elec, solar and last_grid_today, to make if statements easier to read
  #  - protects value going negative if one sensor resets to zero before the other at around midnight
  #  - if elec - solar would be negative it uses the last value from the sensor, stored in last_grid_today
  - trigger: 
    - platform: state
      entity_id: sensor.owl_intuition_electricity_today
    sensor:
      - name: "Owl Grid Energy Today"
        unit_of_measurement: "kWh"
        state_class: total_increasing
        device_class: energy
        state: >
          {% if is_state('sensor.owl_intuition_electricity_today', 'unknown') or is_state('sensor.owl_intuition_solar_generated_today', 'unknown') %}
            nan
          {% else %}
            {% set elec = states('sensor.owl_intuition_electricity_today') | float %}
            {% set solar = states('sensor.owl_intuition_solar_generated_today') | float %}
            {% set last_grid_today = states('sensor.owl_grid_energy_today') | float(default=0) %}
            {% if (float(elec) - float(solar)) >= 0 %}
              {% if ((float(elec) - float(solar)) > float(last_grid_today)) or ((float(elec) - float(solar)) < 1 ) %}
                {{ float(elec) - float(solar) }}
              {% else %}
                {{ float(last_grid_today) }}
              {% endif %}
            {% endif %}
          {% endif %}