diff --git a/templates/definition/meter/kostal-plenticore.yaml b/templates/definition/meter/kostal-plenticore.yaml
index 2fb7fd3ab..349eb74a6 100644
--- a/templates/definition/meter/kostal-plenticore.yaml
+++ b/templates/definition/meter/kostal-plenticore.yaml
@@ -21,7 +21,7 @@ render: |
   type: custom
   power:
     source: calc
-    add: # The add plugin sums up both string values
+    add: # The add plugin sums up all string values
     - source: modbus
       {{- include "modbus" . | indent 4 }}
       model: sunspec
@@ -30,6 +30,10 @@ render: |
       {{- include "modbus" . | indent 4 }}
       model: sunspec
       value: 160:2:DCW # string 2
+    - source: modbus
+      {{- include "modbus" . | indent 4 }}
+      model: sunspec
+      value: 160:3:DCW # string 3
   {{- end }}
   {{- if eq .usage "battery" }}
   type: modbus