diff --git a/configuration.yaml b/configuration.yaml
index 17ca657..76e39d1 100644
--- a/configuration.yaml
+++ b/configuration.yaml
@@ -43,6 +43,7 @@ template:
     - name: "Line Power Total"
       unit_of_measurement: "W"
       icon: mdi:flash
+      unique_id: power.total
       state: >
         {% set phase_a = states('sensor.line_power_channel_a_power') | float %}
         {% set phase_b = states('sensor.line_power_channel_b_power') | float %}