- platform: template
    sensors:
      sma_power:
        value_template: >-
          {% if states('sensor.sma_power') | float < 0 or states('sensor.sma_power') | float > 3000 %}
            0
          {% else %}
            {{ states('sensor.sma_power') }}
          {% endif %}
        friendly_name: 'Power'
        unit_of_measurement: 'Watt'
        icon_template: mdi:flash-circle