diff --git a/homeassistant/components/energy/validate.py b/homeassistant/components/energy/validate.py
index d03883d046b..24d060b4352 100644
--- a/homeassistant/components/energy/validate.py
+++ b/homeassistant/components/energy/validate.py
@@ -24,13 +24,21 @@ ENERGY_USAGE_DEVICE_CLASSES = (sensor.DEVICE_CLASS_ENERGY,)
 ENERGY_USAGE_UNITS = {
     sensor.DEVICE_CLASS_ENERGY: (ENERGY_KILO_WATT_HOUR, ENERGY_WATT_HOUR)
 }
+ENERGY_PRICE_UNITS = tuple(
+    f"/{unit}" for units in ENERGY_USAGE_UNITS.values() for unit in units
+)
 ENERGY_UNIT_ERROR = "entity_unexpected_unit_energy"
+ENERGY_PRICE_UNIT_ERROR = "entity_unexpected_unit_energy_price"
 GAS_USAGE_DEVICE_CLASSES = (sensor.DEVICE_CLASS_ENERGY, sensor.DEVICE_CLASS_GAS)
 GAS_USAGE_UNITS = {
     sensor.DEVICE_CLASS_ENERGY: (ENERGY_WATT_HOUR, ENERGY_KILO_WATT_HOUR),
     sensor.DEVICE_CLASS_GAS: (VOLUME_CUBIC_METERS, VOLUME_CUBIC_FEET),
 }
+GAS_PRICE_UNITS = tuple(
+    f"/{unit}" for units in GAS_USAGE_UNITS.values() for unit in units
+)
 GAS_UNIT_ERROR = "entity_unexpected_unit_gas"
+GAS_PRICE_UNIT_ERROR = "entity_unexpected_unit_gas_price"
 
 
 @dataclasses.dataclass
@@ -152,7 +160,11 @@ def _async_validate_usage_stat(
 
 @callback
 def _async_validate_price_entity(
-    hass: HomeAssistant, entity_id: str, result: list[ValidationIssue]
+    hass: HomeAssistant,
+    entity_id: str,
+    result: list[ValidationIssue],
+    allowed_units: tuple[str, ...],
+    unit_error: str,
 ) -> None:
     """Validate that the price entity is correct."""
     state = hass.states.get(entity_id)
@@ -176,10 +188,8 @@ def _async_validate_price_entity(
 
     unit = state.attributes.get("unit_of_measurement")
 
-    if unit is None or not unit.endswith(
-        (f"/{ENERGY_KILO_WATT_HOUR}", f"/{ENERGY_WATT_HOUR}")
-    ):
-        result.append(ValidationIssue("entity_unexpected_unit_price", entity_id, unit))
+    if unit is None or not unit.endswith(allowed_units):
+        result.append(ValidationIssue(unit_error, entity_id, unit))
 
 
 @callback
@@ -274,7 +284,11 @@ async def async_validate(hass: HomeAssistant) -> EnergyPreferencesValidation:
                     _async_validate_cost_stat(hass, flow["stat_cost"], source_result)
                 elif flow.get("entity_energy_price") is not None:
                     _async_validate_price_entity(
-                        hass, flow["entity_energy_price"], source_result
+                        hass,
+                        flow["entity_energy_price"],
+                        source_result,
+                        ENERGY_PRICE_UNITS,
+                        ENERGY_PRICE_UNIT_ERROR,
                     )
 
                 if (
@@ -303,7 +317,11 @@ async def async_validate(hass: HomeAssistant) -> EnergyPreferencesValidation:
                     )
                 elif flow.get("entity_energy_price") is not None:
                     _async_validate_price_entity(
-                        hass, flow["entity_energy_price"], source_result
+                        hass,
+                        flow["entity_energy_price"],
+                        source_result,
+                        ENERGY_PRICE_UNITS,
+                        ENERGY_PRICE_UNIT_ERROR,
                     )
 
                 if (
@@ -330,7 +348,11 @@ async def async_validate(hass: HomeAssistant) -> EnergyPreferencesValidation:
                 _async_validate_cost_stat(hass, source["stat_cost"], source_result)
             elif source.get("entity_energy_price") is not None:
                 _async_validate_price_entity(
-                    hass, source["entity_energy_price"], source_result
+                    hass,
+                    source["entity_energy_price"],
+                    source_result,
+                    GAS_PRICE_UNITS,
+                    GAS_PRICE_UNIT_ERROR,
                 )
 
             if (
diff --git a/tests/components/energy/test_validate.py b/tests/components/energy/test_validate.py
index 1dd38047209..668f3113fea 100644
--- a/tests/components/energy/test_validate.py
+++ b/tests/components/energy/test_validate.py
@@ -473,7 +473,7 @@ async def test_validation_grid_price_not_exist(hass, mock_energy_manager):
             "123",
             "$/Ws",
             {
-                "type": "entity_unexpected_unit_price",
+                "type": "entity_unexpected_unit_energy_price",
                 "identifier": "sensor.grid_price_1",
                 "value": "$/Ws",
             },
@@ -551,11 +551,19 @@ async def test_validation_gas(hass, mock_energy_manager, mock_is_entity_recorded
                 {
                     "type": "gas",
                     "stat_energy_from": "sensor.gas_consumption_4",
-                    "stat_cost": "sensor.gas_cost_2",
+                    "entity_energy_from": "sensor.gas_consumption_4",
+                    "entity_energy_price": "sensor.gas_price_1",
+                },
+                {
+                    "type": "gas",
+                    "stat_energy_from": "sensor.gas_consumption_3",
+                    "entity_energy_from": "sensor.gas_consumption_3",
+                    "entity_energy_price": "sensor.gas_price_2",
                 },
             ]
         }
     )
+    await hass.async_block_till_done()
     hass.states.async_set(
         "sensor.gas_consumption_1",
         "10.10",
@@ -593,6 +601,16 @@ async def test_validation_gas(hass, mock_energy_manager, mock_is_entity_recorded
         "10.10",
         {"unit_of_measurement": "EUR/kWh", "state_class": "total_increasing"},
     )
+    hass.states.async_set(
+        "sensor.gas_price_1",
+        "10.10",
+        {"unit_of_measurement": "EUR/m³", "state_class": "total_increasing"},
+    )
+    hass.states.async_set(
+        "sensor.gas_price_2",
+        "10.10",
+        {"unit_of_measurement": "EUR/invalid", "state_class": "total_increasing"},
+    )
 
     assert (await validate.async_validate(hass)).as_dict() == {
         "energy_sources": [
@@ -622,6 +640,13 @@ async def test_validation_gas(hass, mock_energy_manager, mock_is_entity_recorded
                     "value": None,
                 },
             ],
+            [
+                {
+                    "type": "entity_unexpected_unit_gas_price",
+                    "identifier": "sensor.gas_price_2",
+                    "value": "EUR/invalid",
+                },
+            ],
         ],
         "device_consumption": [],
     }