Get Min and Max from a Thermometer Sensor

Configuration
5

I use a template sensor in the configuration.yaml which is set up like this:

template:
  - trigger:
      - platform: time
        at: '00:00:00'
      - platform: state
        entity_id: sensor.tesla_pw2_solar_power_w
    sensor:
      - name: 'Solar Power Max Daily W'
        unique_id: 'tesla_pw2_solar_power_w_daily_max'
        unit_of_measurement: 'W'
        device_class: power
        state: >
          {% set t_new = states('sensor.tesla_pw2_solar_power_w') | float(-50) | int() %}
          {{ [t_new, this.state | float(-50) | int()] | max if trigger.platform != 'time' else t_new }}