diff --git a/homeassistant/components/fronius/sensor.py b/homeassistant/components/fronius/sensor.py
index 66aad951f846..cb245f9d7194 100644
--- a/homeassistant/components/fronius/sensor.py
+++ b/homeassistant/components/fronius/sensor.py
@@ -2,7 +2,7 @@
 
 from collections.abc import Callable
 from dataclasses import dataclass
-from typing import TYPE_CHECKING, Any, Final, override
+from typing import TYPE_CHECKING, Any, override
 
 from homeassistant.components.sensor import (
     SensorDeviceClass,
@@ -20,6 +20,7 @@ from homeassistant.const import (
     UnitOfEnergy,
     UnitOfFrequency,
     UnitOfPower,
+    UnitOfReactiveEnergy,
     UnitOfReactivePower,
     UnitOfTemperature,
 )
@@ -59,8 +60,6 @@ if TYPE_CHECKING:
 
 PARALLEL_UPDATES = 0
 
-ENERGY_VOLT_AMPERE_REACTIVE_HOUR: Final = "varh"
-
 
 async def async_setup_entry(
     hass: HomeAssistant,
@@ -405,14 +404,14 @@ METER_ENTITY_DESCRIPTIONS: list[FroniusSensorEntityDescription] = [
     ),
     FroniusSensorEntityDescription(
         key="energy_reactive_ac_consumed",
-        native_unit_of_measurement=ENERGY_VOLT_AMPERE_REACTIVE_HOUR,
+        native_unit_of_measurement=UnitOfReactiveEnergy.VOLT_AMPERE_REACTIVE_HOUR,
         state_class=SensorStateClass.TOTAL_INCREASING,
         entity_registry_enabled_default=False,
         invalid_when_falsy=True,
     ),
     FroniusSensorEntityDescription(
         key="energy_reactive_ac_produced",
-        native_unit_of_measurement=ENERGY_VOLT_AMPERE_REACTIVE_HOUR,
+        native_unit_of_measurement=UnitOfReactiveEnergy.VOLT_AMPERE_REACTIVE_HOUR,
         state_class=SensorStateClass.TOTAL_INCREASING,
         entity_registry_enabled_default=False,
         invalid_when_falsy=True,
diff --git a/tests/components/fronius/snapshots/test_sensor.ambr b/tests/components/fronius/snapshots/test_sensor.ambr
index 4236f3f7bfcc..916ed03c89b2 100644
--- a/tests/components/fronius/snapshots/test_sensor.ambr
+++ b/tests/components/fronius/snapshots/test_sensor.ambr
@@ -1823,7 +1823,7 @@
     'supported_features': 0,
     'translation_key': 'energy_reactive_ac_consumed',
     'unique_id': '1234567890-energy_reactive_ac_consumed',
-    'unit_of_measurement': 'varh',
+    'unit_of_measurement': <UnitOfReactiveEnergy.VOLT_AMPERE_REACTIVE_HOUR: 'varh'>,
   })
 # ---
 # name: test_gen24[sensor.smart_meter_ts_65a_3_reactive_energy_consumed-state]
@@ -1831,7 +1831,7 @@
     'attributes': ReadOnlyDict({
       <EntityStateAttribute.FRIENDLY_NAME: 'friendly_name'>: 'Smart Meter TS 65A-3 Reactive energy consumed',
       <SensorEntityCapabilityAttribute.STATE_CLASS: 'state_class'>: <SensorStateClass.TOTAL_INCREASING: 'total_increasing'>,
-      <EntityStateAttribute.UNIT_OF_MEASUREMENT: 'unit_of_measurement'>: 'varh',
+      <EntityStateAttribute.UNIT_OF_MEASUREMENT: 'unit_of_measurement'>: <UnitOfReactiveEnergy.VOLT_AMPERE_REACTIVE_HOUR: 'varh'>,
     }),
     'context': <ANY>,
     'entity_id': 'sensor.smart_meter_ts_65a_3_reactive_energy_consumed',
@@ -1877,7 +1877,7 @@
     'supported_features': 0,
     'translation_key': 'energy_reactive_ac_produced',
     'unique_id': '1234567890-energy_reactive_ac_produced',
-    'unit_of_measurement': 'varh',
+    'unit_of_measurement': <UnitOfReactiveEnergy.VOLT_AMPERE_REACTIVE_HOUR: 'varh'>,
   })
 # ---
 # name: test_gen24[sensor.smart_meter_ts_65a_3_reactive_energy_produced-state]
@@ -1885,7 +1885,7 @@
     'attributes': ReadOnlyDict({
       <EntityStateAttribute.FRIENDLY_NAME: 'friendly_name'>: 'Smart Meter TS 65A-3 Reactive energy produced',
       <SensorEntityCapabilityAttribute.STATE_CLASS: 'state_class'>: <SensorStateClass.TOTAL_INCREASING: 'total_increasing'>,
-      <EntityStateAttribute.UNIT_OF_MEASUREMENT: 'unit_of_measurement'>: 'varh',
+      <EntityStateAttribute.UNIT_OF_MEASUREMENT: 'unit_of_measurement'>: <UnitOfReactiveEnergy.VOLT_AMPERE_REACTIVE_HOUR: 'varh'>,
     }),
     'context': <ANY>,
     'entity_id': 'sensor.smart_meter_ts_65a_3_reactive_energy_produced',
@@ -6008,7 +6008,7 @@
     'supported_features': 0,
     'translation_key': 'energy_reactive_ac_consumed',
     'unique_id': '1234567890-energy_reactive_ac_consumed',
-    'unit_of_measurement': 'varh',
+    'unit_of_measurement': <UnitOfReactiveEnergy.VOLT_AMPERE_REACTIVE_HOUR: 'varh'>,
   })
 # ---
 # name: test_gen24_storage[sensor.smart_meter_ts_65a_3_reactive_energy_consumed-state]
@@ -6016,7 +6016,7 @@
     'attributes': ReadOnlyDict({
       <EntityStateAttribute.FRIENDLY_NAME: 'friendly_name'>: 'Smart Meter TS 65A-3 Reactive energy consumed',
       <SensorEntityCapabilityAttribute.STATE_CLASS: 'state_class'>: <SensorStateClass.TOTAL_INCREASING: 'total_increasing'>,
-      <EntityStateAttribute.UNIT_OF_MEASUREMENT: 'unit_of_measurement'>: 'varh',
+      <EntityStateAttribute.UNIT_OF_MEASUREMENT: 'unit_of_measurement'>: <UnitOfReactiveEnergy.VOLT_AMPERE_REACTIVE_HOUR: 'varh'>,
     }),
     'context': <ANY>,
     'entity_id': 'sensor.smart_meter_ts_65a_3_reactive_energy_consumed',
@@ -6062,7 +6062,7 @@
     'supported_features': 0,
     'translation_key': 'energy_reactive_ac_produced',
     'unique_id': '1234567890-energy_reactive_ac_produced',
-    'unit_of_measurement': 'varh',
+    'unit_of_measurement': <UnitOfReactiveEnergy.VOLT_AMPERE_REACTIVE_HOUR: 'varh'>,
   })
 # ---
 # name: test_gen24_storage[sensor.smart_meter_ts_65a_3_reactive_energy_produced-state]
@@ -6070,7 +6070,7 @@
     'attributes': ReadOnlyDict({
       <EntityStateAttribute.FRIENDLY_NAME: 'friendly_name'>: 'Smart Meter TS 65A-3 Reactive energy produced',
       <SensorEntityCapabilityAttribute.STATE_CLASS: 'state_class'>: <SensorStateClass.TOTAL_INCREASING: 'total_increasing'>,
-      <EntityStateAttribute.UNIT_OF_MEASUREMENT: 'unit_of_measurement'>: 'varh',
+      <EntityStateAttribute.UNIT_OF_MEASUREMENT: 'unit_of_measurement'>: <UnitOfReactiveEnergy.VOLT_AMPERE_REACTIVE_HOUR: 'varh'>,
     }),
     'context': <ANY>,
     'entity_id': 'sensor.smart_meter_ts_65a_3_reactive_energy_produced',