- sensor:
    - name: Historic Energy Price Percentiles
      unique_id: historic_energy_price_percentiles
      state: OK
      attributes:
        25th: "{{ states('sensor.average_energy_price_last_30d_mean') | float + states('sensor.energy_price_last_30d_std') | float * -0.63 }}"
        50th: "{{ states('sensor.average_energy_price_last_30d_mean') | float + states('sensor.energy_price_last_30d_std') | float * 0 }}"
        75th: "{{ states('sensor.average_energy_price_last_30d_mean') | float + states('sensor.energy_price_last_30d_std') | float * 0.57 }}"
        90th: "{{ states('sensor.average_energy_price_last_30d_mean') | float + states('sensor.energy_price_last_30d_std') | float * 1.29 }}"
        95th: "{{ states('sensor.average_energy_price_last_30d_mean') | float + states('sensor.energy_price_last_30d_std') | float * 1.65 }}"
        99th: "{{ states('sensor.average_energy_price_last_30d_mean') | float + states('sensor.energy_price_last_30d_std') | float * 2.33 }}"
        100th: "{{ states('sensor.average_energy_price_last_30d_mean') | float + states('sensor.energy_price_last_30d_std') | float * 3.9 }}"