I have a simple light named Hallway Light: [image] I know that this light uses 13 W of power when it’s on, and 0 W when it is off, so I created a template sensor to reflect its power usage: template: sensor: - name: Hallway Light Power unit_of_measurement: W device_class: power …

You’d need to add a time trigger to your template sensor: - trigger: - platform: time_pattern hours: '*' minutes: '*' seconds: 1 sensor: - name: Hallway Light Power unit_of_measurement: W device_class: power state: "{{ 13.0 if is_state('light.hallway_li…

Integration (Riemann sum) - value only updating when source sensor updates

Configuration

tom_l January 2, 2022, 2:07am 4

There is also this custom integration that does all the hard work for you:

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