diff --git a/packages/energy/energy.yaml b/packages/energy/energy.yaml
index 7205225..2ff843f 100644
--- a/packages/energy/energy.yaml
+++ b/packages/energy/energy.yaml
@@ -38,12 +38,12 @@ template:
   sensor:
     - name: Envoy 202221032900 Inverter 202147113780 Power Share
       unit_of_measurement: "%"
-      availability: "{{ states('sensor.envoy_inverter_average_power') > 0 }}"
+      availability: "{{ states('sensor.envoy_inverter_average_power')|float > 20 }}"
       state: >
-        {% if states('sensor.envoy_inverter_average_power') == 0 %}
+        {% if states('sensor.envoy_inverter_average_power')|float == 0 %}
           undefined
         {% else %}
-          {{ states('sensor.envoy_202221032900_inverter_202147113780') / states('sensor.envoy_inverter_average_power') }}
+          {{ states('sensor.envoy_202221032900_inverter_202147113780')|float / states('sensor.envoy_inverter_average_power')|float }}
         {% endif %}
 
 homeassistant: