diff --git a/homeassistant/components/easyenergy/sensor.py b/homeassistant/components/easyenergy/sensor.py
index d719eac17af..04bdeb0f747 100644
--- a/homeassistant/components/easyenergy/sensor.py
+++ b/homeassistant/components/easyenergy/sensor.py
@@ -29,21 +29,14 @@ from .const import DOMAIN, SERVICE_TYPE_DEVICE_NAMES
 from .coordinator import EasyEnergyData, EasyEnergyDataUpdateCoordinator
 
 
-@dataclass(frozen=True)
-class EasyEnergySensorEntityDescriptionMixin:
-    """Mixin for required keys."""
+@dataclass(frozen=True, kw_only=True)
+class EasyEnergySensorEntityDescription(SensorEntityDescription):
+    """Describes easyEnergy sensor entity."""
 
     value_fn: Callable[[EasyEnergyData], float | datetime | None]
     service_type: str
 
 
-@dataclass(frozen=True)
-class EasyEnergySensorEntityDescription(
-    SensorEntityDescription, EasyEnergySensorEntityDescriptionMixin
-):
-    """Describes easyEnergy sensor entity."""
-
-
 SENSORS: tuple[EasyEnergySensorEntityDescription, ...] = (
     EasyEnergySensorEntityDescription(
         key="current_hour_price",