diff --git a/homeassistant/components/growatt_server/sensor_types/tlx.py b/homeassistant/components/growatt_server/sensor_types/tlx.py
index 597ddd789cf..ba455747457 100644
--- a/homeassistant/components/growatt_server/sensor_types/tlx.py
+++ b/homeassistant/components/growatt_server/sensor_types/tlx.py
@@ -20,6 +20,7 @@ TLX_SENSOR_TYPES: tuple[GrowattSensorEntityDescription, ...] = (
         api_key="eacToday",
         native_unit_of_measurement=ENERGY_KILO_WATT_HOUR,
         device_class=SensorDeviceClass.ENERGY,
+        state_class=SensorStateClass.TOTAL_INCREASING,
         precision=1,
     ),
     GrowattSensorEntityDescription(