diff --git a/solax/inverters/x3_hybrid_g4.py b/solax/inverters/x3_hybrid_g4.py
index 89fa795..3c18ee8 100644
--- a/solax/inverters/x3_hybrid_g4.py
+++ b/solax/inverters/x3_hybrid_g4.py
@@ -98,7 +98,7 @@ def response_decoder(cls):
             "EPS 1 Power": (29, Units.W, to_signed),
             "EPS 2 Power": (30, Units.W, to_signed),
             "EPS 3 Power": (31, Units.W, to_signed),
-            "Grid Power ": (pack_u16(34, 35), Units.W, to_signed32),
+            "Grid Power": (pack_u16(34, 35), Units.W, to_signed32),
             # 'Battery Voltage' is twice in the json response and covered with 169, 170 below.
             # "Battery Voltage": (39, Units.V, div100),
             "Battery Current": (40, Units.A, twoway_div100),
diff --git a/solax/inverters/x3_mic_pro_g2.py b/solax/inverters/x3_mic_pro_g2.py
index 93c7a63..d5f681c 100644
--- a/solax/inverters/x3_mic_pro_g2.py
+++ b/solax/inverters/x3_mic_pro_g2.py
@@ -72,7 +72,7 @@ def response_decoder(cls):
             "Run Mode": (21, Units.NONE, X3MicProG2._decode_run_mode),
             "Total Yield": (pack_u16(22, 23), Total(Units.KWH), div10),
             "Daily Yield": (24, DailyTotal(Units.KWH), div10),
-            "Feed-in Power ": (pack_u16(72, 73), Units.W, to_signed32),
+            "Feed-in Power": (pack_u16(72, 73), Units.W, to_signed32),
             "Total Feed-in Energy": (pack_u16(74, 75), Total(Units.KWH), div100),
             "Total Consumption": (pack_u16(76, 77), Total(Units.KWH), div100),
         }
diff --git a/solax/inverters/x3_ultra.py b/solax/inverters/x3_ultra.py
index 438dfb9..5eea777 100644
--- a/solax/inverters/x3_ultra.py
+++ b/solax/inverters/x3_ultra.py
@@ -92,7 +92,7 @@ def response_decoder(cls):
             "EPS 1 Power": (29, Units.W, to_signed),
             "EPS 2 Power": (30, Units.W, to_signed),
             "EPS 3 Power": (31, Units.W, to_signed),
-            "Grid Power ": (pack_u16(34, 35), Units.W, to_signed32),
+            "Grid Power": (pack_u16(34, 35), Units.W, to_signed32),
             "Battery 1 Voltage": (39, Units.V, div10),
             "Battery 2 Voltage": (132, Units.V, div10),
             "Battery 1 Current": (40, Units.A, twoway_div100),
diff --git a/tests/samples/expected_values.py b/tests/samples/expected_values.py
index e805157..7391665 100644
--- a/tests/samples/expected_values.py
+++ b/tests/samples/expected_values.py
@@ -285,7 +285,7 @@
     "EPS 1 Power": 0.0,
     "EPS 2 Power": 0.0,
     "EPS 3 Power": 0.0,
-    "Grid Power ": -152.0,
+    "Grid Power": -152.0,
     "Battery Current": 0.0,
     "Battery Power": 0.0,
     "Load/Generator Power": 342.0,
@@ -336,7 +336,7 @@
     "Run Mode": "Normal",
     "Total Yield": 795.7,
     "Daily Yield": 20.0,
-    "Feed-in Power ": 2707.0,
+    "Feed-in Power": 2707.0,
     "Total Feed-in Energy": 657.24,
     "Total Consumption": 307.33,
 }
@@ -621,7 +621,7 @@
     "EPS 1 Power": 0.0,
     "EPS 2 Power": 0.0,
     "EPS 3 Power": 0.0,
-    "Grid Power ": 52.0,
+    "Grid Power": 52.0,
     "Battery 1 Voltage": 213.8,
     "Battery 2 Voltage": 212.9,
     "Battery 1 Current": 9.6,