diff --git a/templates/definition/meter/kostal-plenticore-gen2.yaml b/templates/definition/meter/kostal-plenticore-gen2.yaml
index 7da184e95..3775f397d 100644
--- a/templates/definition/meter/kostal-plenticore-gen2.yaml
+++ b/templates/definition/meter/kostal-plenticore-gen2.yaml
@@ -71,7 +71,7 @@ render: |
     register:
       address: 1056 # total DC PV energy (sum), Wh
       type: holding
-      decode: float32s
+      encoding: {{ if (eq .endianness "big") }}float32{{ else }}float32s{{ end }}
     scale: 0.001 # Wh -> kWh
   maxacpower: {{ .maxacpower }} # W
   {{- end }}
diff --git a/templates/definition/meter/kostal-plenticore.yaml b/templates/definition/meter/kostal-plenticore.yaml
index c25883727..80303ce83 100644
--- a/templates/definition/meter/kostal-plenticore.yaml
+++ b/templates/definition/meter/kostal-plenticore.yaml
@@ -65,7 +65,7 @@ render: |
     register:
       address: 1056 # total DC PV energy (sum), Wh
       type: holding
-      decode: float32s
+      encoding: {{ if (eq .endianness "big") }}float32{{ else }}float32s{{ end }}
     scale: 0.001 # Wh -> kWh
   maxacpower: {{ .maxacpower }} # W
   {{- end }}