diff --git a/homeassistant/components/aurora_abb_powerone/__init__.py b/homeassistant/components/aurora_abb_powerone/__init__.py
index 43e3bd2ad5cc..39abba4ada5a 100644
--- a/homeassistant/components/aurora_abb_powerone/__init__.py
+++ b/homeassistant/components/aurora_abb_powerone/__init__.py
@@ -76,6 +76,7 @@ class AuroraAbbDataUpdateCoordinator(DataUpdateCoordinator[dict[str, float]]):
             power_watts = self.client.measure(3, True)
             temperature_c = self.client.measure(21)
             energy_wh = self.client.cumulated_energy(5)
+            [alarm, *_] = self.client.alarms()
         except AuroraTimeoutError:
             self.available = False
             _LOGGER.debug("No response from inverter (could be dark)")
@@ -86,6 +87,7 @@ class AuroraAbbDataUpdateCoordinator(DataUpdateCoordinator[dict[str, float]]):
             data["instantaneouspower"] = round(power_watts, 1)
             data["temp"] = round(temperature_c, 1)
             data["totalenergy"] = round(energy_wh / 1000, 2)
+            data["alarm"] = alarm
             self.available = True
 
         finally:
diff --git a/homeassistant/components/aurora_abb_powerone/sensor.py b/homeassistant/components/aurora_abb_powerone/sensor.py
index 0e7d0c06a4ee..80b0fd656b67 100644
--- a/homeassistant/components/aurora_abb_powerone/sensor.py
+++ b/homeassistant/components/aurora_abb_powerone/sensor.py
@@ -5,6 +5,8 @@ from collections.abc import Mapping
 import logging
 from typing import Any
 
+from aurorapy.mapping import Mapping as AuroraMapping
+
 from homeassistant.components.sensor import (
     SensorDeviceClass,
     SensorEntity,
@@ -36,8 +38,16 @@ from .const import (
 )
 
 _LOGGER = logging.getLogger(__name__)
+ALARM_STATES = list(AuroraMapping.ALARM_STATES.values())
 
 SENSOR_TYPES = [
+    SensorEntityDescription(
+        key="alarm",
+        device_class=SensorDeviceClass.ENUM,
+        options=ALARM_STATES,
+        entity_category=EntityCategory.DIAGNOSTIC,
+        translation_key="alarm",
+    ),
     SensorEntityDescription(
         key="instantaneouspower",
         device_class=SensorDeviceClass.POWER,
diff --git a/homeassistant/components/aurora_abb_powerone/strings.json b/homeassistant/components/aurora_abb_powerone/strings.json
index 50b6e0db502d..63ea1cfefd47 100644
--- a/homeassistant/components/aurora_abb_powerone/strings.json
+++ b/homeassistant/components/aurora_abb_powerone/strings.json
@@ -21,11 +21,14 @@
   },
   "entity": {
     "sensor": {
+      "alarm": {
+        "name": "Alarm status"
+      },
       "power_output": {
-        "name": "Power Output"
+        "name": "Power output"
       },
       "total_energy": {
-        "name": "Total Energy"
+        "name": "Total energy"
       }
     }
   }
diff --git a/tests/components/aurora_abb_powerone/test_sensor.py b/tests/components/aurora_abb_powerone/test_sensor.py
index 61521c49b796..a78682ced6d1 100644
--- a/tests/components/aurora_abb_powerone/test_sensor.py
+++ b/tests/components/aurora_abb_powerone/test_sensor.py
@@ -62,6 +62,8 @@ async def test_sensors(hass: HomeAssistant) -> None:
     with patch("aurorapy.client.AuroraSerialClient.connect", return_value=None), patch(
         "aurorapy.client.AuroraSerialClient.measure",
         side_effect=_simulated_returns,
+    ), patch(
+        "aurorapy.client.AuroraSerialClient.alarms", return_value=["No alarm"]
     ), patch(
         "aurorapy.client.AuroraSerialClient.serial_number",
         return_value="9876543",
@@ -102,6 +104,8 @@ async def test_sensor_dark(hass: HomeAssistant, freezer: FrozenDateTimeFactory)
     # sun is up
     with patch("aurorapy.client.AuroraSerialClient.connect", return_value=None), patch(
         "aurorapy.client.AuroraSerialClient.measure", side_effect=_simulated_returns
+    ), patch(
+        "aurorapy.client.AuroraSerialClient.alarms", return_value=["No alarm"]
     ), patch(
         "aurorapy.client.AuroraSerialClient.cumulated_energy",
         side_effect=_simulated_returns,
@@ -133,7 +137,7 @@ async def test_sensor_dark(hass: HomeAssistant, freezer: FrozenDateTimeFactory)
     ), patch(
         "aurorapy.client.AuroraSerialClient.cumulated_energy",
         side_effect=AuroraTimeoutError("No response after 3 tries"),
-    ):
+    ), patch("aurorapy.client.AuroraSerialClient.alarms", return_value=["No alarm"]):
         freezer.tick(SCAN_INTERVAL * 2)
         async_fire_time_changed(hass)
         await hass.async_block_till_done()
@@ -145,7 +149,7 @@ async def test_sensor_dark(hass: HomeAssistant, freezer: FrozenDateTimeFactory)
     ), patch(
         "aurorapy.client.AuroraSerialClient.cumulated_energy",
         side_effect=_simulated_returns,
-    ):
+    ), patch("aurorapy.client.AuroraSerialClient.alarms", return_value=["No alarm"]):
         freezer.tick(SCAN_INTERVAL * 4)
         async_fire_time_changed(hass)
         await hass.async_block_till_done()
@@ -159,7 +163,7 @@ async def test_sensor_dark(hass: HomeAssistant, freezer: FrozenDateTimeFactory)
     ), patch(
         "aurorapy.client.AuroraSerialClient.cumulated_energy",
         side_effect=AuroraError("No response after 10 seconds"),
-    ):
+    ), patch("aurorapy.client.AuroraSerialClient.alarms", return_value=["No alarm"]):
         freezer.tick(SCAN_INTERVAL * 6)
         async_fire_time_changed(hass)
         await hass.async_block_till_done()
@@ -174,6 +178,8 @@ async def test_sensor_unknown_error(hass: HomeAssistant) -> None:
     with patch("aurorapy.client.AuroraSerialClient.connect", return_value=None), patch(
         "aurorapy.client.AuroraSerialClient.measure",
         side_effect=AuroraError("another error"),
+    ), patch(
+        "aurorapy.client.AuroraSerialClient.alarms", return_value=["No alarm"]
     ), patch("serial.Serial.isOpen", return_value=True):
         mock_entry.add_to_hass(hass)
         await hass.config_entries.async_setup(mock_entry.entry_id)