diff --git a/goodwe/model.py b/goodwe/model.py
index e9a0a9e..261a08a 100644
--- a/goodwe/model.py
+++ b/goodwe/model.py
@@ -14,7 +14,7 @@
                        "ESN", "EMN", "ERN", "EBN", "HLB", "HMB", "HBB", "SPN"]  # ES Gen 2
 
 MPPT3_MODELS = ["MSU", "MST", "PSC",
-                "25KET", "29KET", "30KET"]
+                "25KET", "29KET", "29K9ET", "30KET"]
 
 MPPT4_MODELS = ["HSB"]