diff --git a/template/aircondition.yaml b/template/aircondition.yaml
index d9acd40..1bf8a5f 100644
--- a/template/aircondition.yaml
+++ b/template/aircondition.yaml
@@ -25,9 +25,12 @@
         {% set a = states.sensor.aircondition_strom.state | float %}
         {% set wp = states.sensor.aircondition_energi.state | float %}
         {% set ap = v * a %}
-        {% set pf = wp / ap * 100 %}
-
-        {{ pf | round(2) }}
+        {% if ap > 0 %}
+          {% set pf = wp / ap * 100 %}
+          {{ pf | round(2) }}
+        {% else %}
+          unavailable
+        {% endif %}
       unit_of_measurement: "%"
       device_class: power_factor
       state_class: measurement
diff --git a/template/computer-plug.yaml b/template/computer-plug.yaml
index a9883d7..caafa0e 100644
--- a/template/computer-plug.yaml
+++ b/template/computer-plug.yaml
@@ -18,16 +18,18 @@
       state_class: measurement
 
     - name: Computer Power Factor
-      availability: "{{ states.sensor.computer_strom.state | float(0) > 0 }}"
       state: |
         {# Calculate power factor #}
         {% set v = states.sensor.computer_spaending.state | float %}
         {% set a = states.sensor.computer_strom.state | float %}
         {% set wp = states.sensor.computer_energi.state | float %}
         {% set ap = v * a %}
-        {% set pf = wp / ap * 100 %}
-
-        {{ pf | round(2) }}
+        {% if ap > 0 %}
+          {% set pf = wp / ap * 100 %}
+          {{ pf | round(2) }}
+        {% else %}
+          unavailable
+        {% endif %}
       unit_of_measurement: "%"
       device_class: power_factor
       state_class: measurement
diff --git a/template/mikroovn.yaml b/template/mikroovn.yaml
index 064d80f..b52d8b7 100644
--- a/template/mikroovn.yaml
+++ b/template/mikroovn.yaml
@@ -1,15 +1,17 @@
 - sensor:
     - name: Mikroovn Power Factor
-      availability: "{{ states.sensor.mikroovn_current.state | float(0) > 0 }}"
       state: |
         {# Calculate power factor #}
         {% set v = states.sensor.mikroovn_voltage.state | float %}
         {% set a = states.sensor.mikroovn_current.state | float %}
         {% set wp = states.sensor.mikroovn_power.state | float %}
         {% set ap = v * a %}
-        {% set pf = wp / ap * 100 %}
-
-        {{ pf | round(2) }}
+        {% if ap > 0 %}
+          {% set pf = wp / ap * 100 %}
+          {{ pf | round(2) }}
+        {% else %}
+          unavailable
+        {% endif %}
       unit_of_measurement: "%"
       device_class: power_factor
       state_class: measurement
diff --git a/template/opvaskemaskine.yaml b/template/opvaskemaskine.yaml
index 44f732a..864f64f 100644
--- a/template/opvaskemaskine.yaml
+++ b/template/opvaskemaskine.yaml
@@ -18,16 +18,17 @@
       state_class: measurement
 
     - name: Opvaskemaskine Power Factor
-      availability: "{{ states.sensor.opvaskemaskine_strom.state | float(0) > 0 }}"
       state: |
         {# Calculate power factor #}
         {% set v = states.sensor.opvaskemaskine_spaending.state | float %}
         {% set a = states.sensor.opvaskemaskine_strom.state | float %}
         {% set wp = states.sensor.opvaskemaskine_energi.state | float %}
-        {% set ap = v * a %}
-        {% set pf = wp / ap * 100 %}
-
-        {{ pf | round(2) }}
+        {% if ap > 0 %}
+          {% set pf = wp / ap * 100 %}
+          {{ pf | round(2) }}
+        {% else %}
+          unavailable
+        {% endif %}
       unit_of_measurement: "%"
       device_class: power_factor
       state_class: measurement
diff --git a/template/teknikskab.yaml b/template/teknikskab.yaml
index c668e02..a826f6c 100644
--- a/template/teknikskab.yaml
+++ b/template/teknikskab.yaml
@@ -18,16 +18,18 @@
       state_class: measurement
 
     - name: Teknikskab Power Factor
-      availability: "{{ states.sensor.teknikskab_strom.state | default(0) | float(0) > 0 }}"
       state: |
         {# Calculate power factor #}
         {% set v = states.sensor.teknikskab_spaending.state | float %}
         {% set a = states.sensor.teknikskab_strom.state | float %}
         {% set wp = states.sensor.teknikskab_energi.state | float %}
         {% set ap = v * a %}
-        {% set pf = wp / ap * 100 %}
-
-        {{ pf | round(2) }}
+        {% if ap > 0 %}
+          {% set pf = wp / ap * 100 %}
+          {{ pf | round(2) }}
+        {% else %}
+          unavailable
+        {% endif %}
       unit_of_measurement: "%"
       device_class: power_factor
       state_class: measurement
diff --git a/template/tv_baenk.yaml b/template/tv_baenk.yaml
index d81c379..72cd26c 100644
--- a/template/tv_baenk.yaml
+++ b/template/tv_baenk.yaml
@@ -18,16 +18,18 @@
       state_class: measurement
 
     - name: TV Bænk Power Factor
-      availability: "{{ states.sensor.tv_baenk_strom.state | default(0) | float(0) > 0 }}"
       state: |
         {# Calculate power factor #}
         {% set v = states.sensor.tv_baenk_spaending.state | float %}
         {% set a = states.sensor.tv_baenk_strom.state | float %}
         {% set wp = states.sensor.tv_baenk_energi.state | float %}
         {% set ap = v * a %}
-        {% set pf = wp / ap * 100 %}
-
-        {{ pf | round(2) }}
+        {% if ap > 0 %}
+          {% set pf = wp / ap * 100 %}
+          {{ pf | round(2) }}
+        {% else %}
+          unavailable
+        {% endif %}
       unit_of_measurement: "%"
       device_class: power_factor
       state_class: measurement