Home Assistant: PGE G12 2025 Energy price integration

templates.yaml

# G12 Tariff Configuration - Poland
# Summer (Apr 1 - Sep 30): Day 06:00-15:00, 17:00-22:00 | Night 15:00-17:00, 22:00-06:00
# Winter (Oct 1 - Mar 31): Day 06:00-13:00, 15:00-22:00 | Night 13:00-15:00, 22:00-06:00

- sensor:
    # G12 Tariff Mode - Single source of truth for tariff logic
    - name: 'G12 Tariff Mode'
      unique_id: g12_tariff_mode
      icon: >
        {% set h = now().hour %}
        {% set m = now().month %}
        {% set is_winter = m in [10, 11, 12, 1, 2, 3] %}
        {% if is_winter %}
          {% set is_night = (h >= 13 and h < 15) or (h >= 22 or h < 6) %}
        {% else %}
          {% set is_night = (h >= 15 and h < 17) or (h >= 22 or h < 6) %}
        {% endif %}
        {{ 'mdi:moon-waning-crescent' if is_night else 'mdi:white-balance-sunny' }}
      state: >
        {% set h = now().hour %}
        {% set m = now().month %}
        {% set is_winter = m in [10, 11, 12, 1, 2, 3] %}
        {% if is_winter %}
          {% set is_night = (h >= 13 and h < 15) or (h >= 22 or h < 6) %}
        {% else %}
          {% set is_night = (h >= 15 and h < 17) or (h >= 22 or h < 6) %}
        {% endif %}
        {{ 'night' if is_night else 'day' }}
      attributes:
        season: >
          {% set m = now().month %}
          {{ 'summer' if (m >= 4 and m <= 9) else 'winter' }}

    # Current electricity price based on G12 tariff schedule - depends on tariff mode
    - name: 'G12 Energy Price'
      unique_id: grid_energy_price_g12
      unit_of_measurement: 'PLN/kWh'
      icon: mdi:cash
      state: >
        {{ 0.70 if is_state('sensor.g12_tariff_mode', 'night') else 1.16 }}
      attributes:
        season: "{{ state_attr('sensor.g12_tariff_mode', 'season') }}"

Add template: !include templates.yaml to configuration.yaml.

Then use grid_energy_price_g12 in Energy tab.