diff --git a/homeassistant/components/homewizard/__init__.py b/homeassistant/components/homewizard/__init__.py
index b50d87a940d..4a087988b61 100644
--- a/homeassistant/components/homewizard/__init__.py
+++ b/homeassistant/components/homewizard/__init__.py
@@ -1,14 +1,11 @@
 """The Homewizard integration."""
 import logging
 
-from aiohwenergy import DisabledError
-
 from homeassistant.config_entries import SOURCE_IMPORT, ConfigEntry
 from homeassistant.const import CONF_IP_ADDRESS
 from homeassistant.core import HomeAssistant
 from homeassistant.exceptions import ConfigEntryNotReady
 from homeassistant.helpers import entity_registry as er
-from homeassistant.helpers.update_coordinator import UpdateFailed
 
 from .const import DOMAIN, PLATFORMS
 from .coordinator import HWEnergyDeviceUpdateCoordinator as Coordinator
@@ -69,16 +66,10 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     # Create coordinator
     coordinator = Coordinator(hass, entry.data[CONF_IP_ADDRESS])
     try:
-        await coordinator.initialize_api()
-
-    except DisabledError:
-        _LOGGER.error("API is disabled, enable API in HomeWizard Energy app")
-        return False
-
-    except UpdateFailed as ex:
-        raise ConfigEntryNotReady from ex
-
-    await coordinator.async_config_entry_first_refresh()
+        await coordinator.async_config_entry_first_refresh()
+    except ConfigEntryNotReady:
+        await coordinator.api.close()
+        raise
 
     # Finalize
     hass.data.setdefault(DOMAIN, {})
diff --git a/homeassistant/components/homewizard/config_flow.py b/homeassistant/components/homewizard/config_flow.py
index 6ab485f534f..df883baf3b1 100644
--- a/homeassistant/components/homewizard/config_flow.py
+++ b/homeassistant/components/homewizard/config_flow.py
@@ -4,9 +4,8 @@ from __future__ import annotations
 import logging
 from typing import Any
 
-import aiohwenergy
-from aiohwenergy.hwenergy import SUPPORTED_DEVICES
-import async_timeout
+from homewizard_energy import HomeWizardEnergy
+from homewizard_energy.errors import DisabledError, UnsupportedError
 from voluptuous import Required, Schema
 
 from homeassistant import config_entries
@@ -175,16 +174,19 @@ class ConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
 
         # Make connection with device
         # This is to test the connection and to get info for unique_id
-        energy_api = aiohwenergy.HomeWizardEnergy(ip_address)
+        energy_api = HomeWizardEnergy(ip_address)
 
         try:
-            with async_timeout.timeout(10):
-                await energy_api.initialize()
+            device = await energy_api.device()
 
-        except aiohwenergy.DisabledError as ex:
+        except DisabledError as ex:
             _LOGGER.error("API disabled, API must be enabled in the app")
             raise AbortFlow("api_not_enabled") from ex
 
+        except UnsupportedError as ex:
+            _LOGGER.error("API version unsuppored")
+            raise AbortFlow("unsupported_api_version") from ex
+
         except Exception as ex:
             _LOGGER.exception(
                 "Error connecting with Energy Device at %s",
@@ -195,25 +197,10 @@ class ConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
         finally:
             await energy_api.close()
 
-        if energy_api.device is None:
-            _LOGGER.error("Initialization failed")
-            raise AbortFlow("unknown_error")
-
-        # Validate metadata
-        if energy_api.device.api_version != "v1":
-            raise AbortFlow("unsupported_api_version")
-
-        if energy_api.device.product_type not in SUPPORTED_DEVICES:
-            _LOGGER.error(
-                "Device (%s) not supported by integration",
-                energy_api.device.product_type,
-            )
-            raise AbortFlow("device_not_supported")
-
         return {
-            CONF_PRODUCT_NAME: energy_api.device.product_name,
-            CONF_PRODUCT_TYPE: energy_api.device.product_type,
-            CONF_SERIAL: energy_api.device.serial,
+            CONF_PRODUCT_NAME: device.product_name,
+            CONF_PRODUCT_TYPE: device.product_type,
+            CONF_SERIAL: device.serial,
         }
 
     async def _async_set_and_check_unique_id(self, entry_info: dict[str, Any]) -> None:
diff --git a/homeassistant/components/homewizard/const.py b/homeassistant/components/homewizard/const.py
index 75c522a211e..c1c788d371b 100644
--- a/homeassistant/components/homewizard/const.py
+++ b/homeassistant/components/homewizard/const.py
@@ -5,10 +5,9 @@ from datetime import timedelta
 from typing import TypedDict
 
 # Set up.
-from aiohwenergy.device import Device
+from homewizard_energy.models import Data, Device, State
 
 from homeassistant.const import Platform
-from homeassistant.helpers.typing import StateType
 
 DOMAIN = "homewizard"
 PLATFORMS = [Platform.SENSOR, Platform.SWITCH]
@@ -29,4 +28,5 @@ class DeviceResponseEntry(TypedDict):
     """Dict describing a single response entry."""
 
     device: Device
-    data: dict[str, StateType]
+    data: Data
+    state: State
diff --git a/homeassistant/components/homewizard/coordinator.py b/homeassistant/components/homewizard/coordinator.py
index 2cce88cbe36..e12edda63ae 100644
--- a/homeassistant/components/homewizard/coordinator.py
+++ b/homeassistant/components/homewizard/coordinator.py
@@ -1,11 +1,10 @@
 """Update coordinator for HomeWizard."""
 from __future__ import annotations
 
-import asyncio
 import logging
 
-import aiohwenergy
-import async_timeout
+from homewizard_energy import HomeWizardEnergy
+from homewizard_energy.errors import DisabledError
 
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
@@ -19,7 +18,7 @@ _LOGGER = logging.getLogger(__name__)
 class HWEnergyDeviceUpdateCoordinator(DataUpdateCoordinator[DeviceResponseEntry]):
     """Gather data for the energy device."""
 
-    api: aiohwenergy.HomeWizardEnergy
+    api: HomeWizardEnergy
 
     def __init__(
         self,
@@ -29,56 +28,20 @@ class HWEnergyDeviceUpdateCoordinator(DataUpdateCoordinator[DeviceResponseEntry]
         """Initialize Update Coordinator."""
 
         super().__init__(hass, _LOGGER, name=DOMAIN, update_interval=UPDATE_INTERVAL)
-
-        session = async_get_clientsession(hass)
-        self.api = aiohwenergy.HomeWizardEnergy(host, clientsession=session)
+        self.api = HomeWizardEnergy(host, clientsession=async_get_clientsession(hass))
 
     async def _async_update_data(self) -> DeviceResponseEntry:
         """Fetch all device and sensor data from api."""
 
-        async with async_timeout.timeout(10):
-
-            if self.api.device is None:
-                await self.initialize_api()
-
-            # Update all properties
-            try:
-                if not await self.api.update():
-                    raise UpdateFailed("Failed to communicate with device")
-
-            except aiohwenergy.DisabledError as ex:
-                raise UpdateFailed(
-                    "API disabled, API must be enabled in the app"
-                ) from ex
-
+        # Update all properties
+        try:
             data: DeviceResponseEntry = {
-                "device": self.api.device,
-                "data": {},
+                "device": await self.api.device(),
+                "data": await self.api.data(),
+                "state": await self.api.state(),
             }
 
-            for datapoint in self.api.data.available_datapoints:
-                data["data"][datapoint] = getattr(self.api.data, datapoint)
+        except DisabledError as ex:
+            raise UpdateFailed("API disabled, API must be enabled in the app") from ex
 
         return data
-
-    async def initialize_api(self) -> aiohwenergy:
-        """Initialize API and validate connection."""
-
-        try:
-            await self.api.initialize()
-
-        except (asyncio.TimeoutError, aiohwenergy.RequestError) as ex:
-            raise UpdateFailed(
-                f"Error connecting to the Energy device at {self.api.host}"
-            ) from ex
-
-        except aiohwenergy.DisabledError as ex:
-            raise ex
-
-        except aiohwenergy.AiohwenergyException as ex:
-            raise UpdateFailed("Unknown Energy API error occurred") from ex
-
-        except Exception as ex:
-            raise UpdateFailed(
-                f"Unknown error connecting with Energy Device at {self.api.host}"
-            ) from ex
diff --git a/homeassistant/components/homewizard/manifest.json b/homeassistant/components/homewizard/manifest.json
index 1bd856334b7..e426234b449 100644
--- a/homeassistant/components/homewizard/manifest.json
+++ b/homeassistant/components/homewizard/manifest.json
@@ -4,9 +4,9 @@
   "documentation": "https://www.home-assistant.io/integrations/homewizard",
   "codeowners": ["@DCSBL"],
   "dependencies": [],
-  "requirements": ["aiohwenergy==0.8.0"],
+  "requirements": ["python-homewizard-energy==1.0.3"],
   "zeroconf": ["_hwenergy._tcp.local."],
   "config_flow": true,
   "iot_class": "local_polling",
-  "loggers": ["aiohwenergy"]
+  "loggers": ["homewizard_energy"]
 }
diff --git a/homeassistant/components/homewizard/sensor.py b/homeassistant/components/homewizard/sensor.py
index 34479dd6b0a..b7f759f6a0e 100644
--- a/homeassistant/components/homewizard/sensor.py
+++ b/homeassistant/components/homewizard/sensor.py
@@ -2,7 +2,7 @@
 from __future__ import annotations
 
 import logging
-from typing import Final
+from typing import Final, cast
 
 from homeassistant.components.sensor import (
     SensorDeviceClass,
@@ -129,12 +129,9 @@ async def async_setup_entry(
     coordinator: HWEnergyDeviceUpdateCoordinator = hass.data[DOMAIN][entry.entry_id]
 
     entities = []
-    if coordinator.api.data is not None:
+    if coordinator.data["data"] is not None:
         for description in SENSORS:
-            if (
-                description.key in coordinator.api.data.available_datapoints
-                and getattr(coordinator.api.data, description.key) is not None
-            ):
+            if getattr(coordinator.data["data"], description.key) is not None:
                 entities.append(HWEnergySensor(coordinator, entry, description))
     async_add_entities(entities)
 
@@ -165,7 +162,7 @@ class HWEnergySensor(CoordinatorEntity[HWEnergyDeviceUpdateCoordinator], SensorE
             "total_power_export_t1_kwh",
             "total_power_export_t2_kwh",
         ]:
-            if self.data["data"][self.data_type] == 0:
+            if self.native_value == 0:
                 self._attr_entity_registry_enabled_default = False
 
     @property
@@ -187,9 +184,9 @@ class HWEnergySensor(CoordinatorEntity[HWEnergyDeviceUpdateCoordinator], SensorE
     @property
     def native_value(self) -> StateType:
         """Return state of meter."""
-        return self.data["data"][self.data_type]
+        return cast(StateType, getattr(self.data["data"], self.data_type))
 
     @property
     def available(self) -> bool:
         """Return availability of meter."""
-        return super().available and self.data_type in self.data["data"]
+        return super().available and self.native_value is not None
diff --git a/homeassistant/components/homewizard/switch.py b/homeassistant/components/homewizard/switch.py
index 3c6b1a1c5dc..eb2e9c49afe 100644
--- a/homeassistant/components/homewizard/switch.py
+++ b/homeassistant/components/homewizard/switch.py
@@ -22,7 +22,7 @@ async def async_setup_entry(
     """Set up switches."""
     coordinator: HWEnergyDeviceUpdateCoordinator = hass.data[DOMAIN][entry.entry_id]
 
-    if coordinator.api.state:
+    if coordinator.data["state"]:
         async_add_entities(
             [
                 HWEnergyMainSwitchEntity(coordinator, entry),
@@ -70,12 +70,12 @@ class HWEnergyMainSwitchEntity(HWEnergySwitchEntity):
 
     async def async_turn_on(self, **kwargs: Any) -> None:
         """Turn the switch on."""
-        await self.coordinator.api.state.set(power_on=True)
+        await self.coordinator.api.state_set(power_on=True)
         await self.coordinator.async_refresh()
 
     async def async_turn_off(self, **kwargs: Any) -> None:
         """Turn the switch off."""
-        await self.coordinator.api.state.set(power_on=False)
+        await self.coordinator.api.state_set(power_on=False)
         await self.coordinator.async_refresh()
 
     @property
@@ -85,12 +85,12 @@ class HWEnergyMainSwitchEntity(HWEnergySwitchEntity):
 
         This switch becomes unavailable when switch_lock is enabled.
         """
-        return super().available and not self.coordinator.api.state.switch_lock
+        return super().available and not self.coordinator.data["state"].switch_lock
 
     @property
     def is_on(self) -> bool:
         """Return true if switch is on."""
-        return bool(self.coordinator.api.state.power_on)
+        return bool(self.coordinator.data["state"].power_on)
 
 
 class HWEnergySwitchLockEntity(HWEnergySwitchEntity):
@@ -115,15 +115,15 @@ class HWEnergySwitchLockEntity(HWEnergySwitchEntity):
 
     async def async_turn_on(self, **kwargs: Any) -> None:
         """Turn switch-lock on."""
-        await self.coordinator.api.state.set(switch_lock=True)
+        await self.coordinator.api.state_set(switch_lock=True)
         await self.coordinator.async_refresh()
 
     async def async_turn_off(self, **kwargs: Any) -> None:
         """Turn switch-lock off."""
-        await self.coordinator.api.state.set(switch_lock=False)
+        await self.coordinator.api.state_set(switch_lock=False)
         await self.coordinator.async_refresh()
 
     @property
     def is_on(self) -> bool:
         """Return true if switch is on."""
-        return bool(self.coordinator.api.state.switch_lock)
+        return bool(self.coordinator.data["state"].switch_lock)
diff --git a/requirements_all.txt b/requirements_all.txt
index 38cc91c2574..a52d465fac6 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -171,9 +171,6 @@ aiohttp_cors==0.7.0
 # homeassistant.components.hue
 aiohue==4.4.1
 
-# homeassistant.components.homewizard
-aiohwenergy==0.8.0
-
 # homeassistant.components.imap
 aioimaplib==0.9.0
 
@@ -1903,6 +1900,9 @@ python-gc100==1.0.3a0
 # homeassistant.components.gitlab_ci
 python-gitlab==1.6.0
 
+# homeassistant.components.homewizard
+python-homewizard-energy==1.0.3
+
 # homeassistant.components.hp_ilo
 python-hpilo==4.3
 
diff --git a/requirements_test_all.txt b/requirements_test_all.txt
index cefa305a5b9..897ffe50074 100644
--- a/requirements_test_all.txt
+++ b/requirements_test_all.txt
@@ -155,9 +155,6 @@ aiohttp_cors==0.7.0
 # homeassistant.components.hue
 aiohue==4.4.1
 
-# homeassistant.components.homewizard
-aiohwenergy==0.8.0
-
 # homeassistant.components.apache_kafka
 aiokafka==0.6.0
 
@@ -1265,6 +1262,9 @@ python-ecobee-api==0.2.14
 # homeassistant.components.darksky
 python-forecastio==1.4.0
 
+# homeassistant.components.homewizard
+python-homewizard-energy==1.0.3
+
 # homeassistant.components.izone
 python-izone==1.2.3
 
diff --git a/tests/components/homewizard/generator.py b/tests/components/homewizard/generator.py
index 74d33c9e609..0f94580ad84 100644
--- a/tests/components/homewizard/generator.py
+++ b/tests/components/homewizard/generator.py
@@ -2,6 +2,8 @@
 
 from unittest.mock import AsyncMock
 
+from homewizard_energy.models import Device
+
 
 def get_mock_device(
     serial="aabbccddeeff",
@@ -13,15 +15,18 @@ def get_mock_device(
     mock_device = AsyncMock()
     mock_device.host = host
 
-    mock_device.device.product_name = product_name
-    mock_device.device.product_type = product_type
-    mock_device.device.serial = serial
-    mock_device.device.api_version = "v1"
-    mock_device.device.firmware_version = "1.00"
+    mock_device.device = AsyncMock(
+        return_value=Device(
+            product_name=product_name,
+            product_type=product_type,
+            serial=serial,
+            api_version="V1",
+            firmware_version="1.00",
+        )
+    )
+    mock_device.data = AsyncMock(return_value=None)
+    mock_device.state = AsyncMock(return_value=None)
 
-    mock_device.state = None
-
-    mock_device.initialize = AsyncMock()
     mock_device.close = AsyncMock()
 
     return mock_device
diff --git a/tests/components/homewizard/test_config_flow.py b/tests/components/homewizard/test_config_flow.py
index d0dc7d04509..d2e7d4c58ae 100644
--- a/tests/components/homewizard/test_config_flow.py
+++ b/tests/components/homewizard/test_config_flow.py
@@ -2,7 +2,7 @@
 import logging
 from unittest.mock import patch
 
-from aiohwenergy import DisabledError
+from homewizard_energy.errors import DisabledError, UnsupportedError
 
 from homeassistant import config_entries
 from homeassistant.components import zeroconf
@@ -33,7 +33,10 @@ async def test_manual_flow_works(hass, aioclient_mock):
     assert result["type"] == "form"
     assert result["step_id"] == "user"
 
-    with patch("aiohwenergy.HomeWizardEnergy", return_value=device,), patch(
+    with patch(
+        "homeassistant.components.homewizard.config_flow.HomeWizardEnergy",
+        return_value=device,
+    ), patch(
         "homeassistant.components.homewizard.async_setup_entry",
         return_value=True,
     ) as mock_setup_entry:
@@ -42,12 +45,12 @@ async def test_manual_flow_works(hass, aioclient_mock):
         )
 
     assert result["type"] == "create_entry"
-    assert result["title"] == f"{device.device.product_name} (aabbccddeeff)"
+    assert result["title"] == "P1 meter (aabbccddeeff)"
     assert result["data"][CONF_IP_ADDRESS] == "2.2.2.2"
 
     assert len(hass.config_entries.async_entries(DOMAIN)) == 1
 
-    assert len(device.initialize.mock_calls) == 1
+    assert len(device.device.mock_calls) == 1
     assert len(device.close.mock_calls) == 1
 
     assert len(mock_setup_entry.mock_calls) == 1
@@ -72,7 +75,10 @@ async def test_discovery_flow_works(hass, aioclient_mock):
         },
     )
 
-    with patch("aiohwenergy.HomeWizardEnergy", return_value=get_mock_device()):
+    with patch(
+        "homeassistant.components.homewizard.config_flow.HomeWizardEnergy",
+        return_value=get_mock_device(),
+    ):
         flow = await hass.config_entries.flow.async_init(
             DOMAIN,
             context={"source": config_entries.SOURCE_ZEROCONF},
@@ -82,7 +88,10 @@ async def test_discovery_flow_works(hass, aioclient_mock):
     with patch(
         "homeassistant.components.homewizard.async_setup_entry",
         return_value=True,
-    ), patch("aiohwenergy.HomeWizardEnergy", return_value=get_mock_device()):
+    ), patch(
+        "homeassistant.components.homewizard.config_flow.HomeWizardEnergy",
+        return_value=get_mock_device(),
+    ):
         result = await hass.config_entries.flow.async_configure(
             flow["flow_id"], user_input=None
         )
@@ -92,7 +101,10 @@ async def test_discovery_flow_works(hass, aioclient_mock):
     with patch(
         "homeassistant.components.homewizard.async_setup_entry",
         return_value=True,
-    ), patch("aiohwenergy.HomeWizardEnergy", return_value=get_mock_device()):
+    ), patch(
+        "homeassistant.components.homewizard.config_flow.HomeWizardEnergy",
+        return_value=get_mock_device(),
+    ):
         result = await hass.config_entries.flow.async_configure(
             flow["flow_id"], user_input={"ip_address": "192.168.43.183"}
         )
@@ -113,7 +125,10 @@ async def test_config_flow_imports_entry(aioclient_mock, hass):
     mock_entry = MockConfigEntry(domain="homewizard_energy", data={"host": "1.2.3.4"})
     mock_entry.add_to_hass(hass)
 
-    with patch("aiohwenergy.HomeWizardEnergy", return_value=device,), patch(
+    with patch(
+        "homeassistant.components.homewizard.config_flow.HomeWizardEnergy",
+        return_value=device,
+    ), patch(
         "homeassistant.components.homewizard.async_setup_entry",
         return_value=True,
     ) as mock_setup_entry:
@@ -127,11 +142,11 @@ async def test_config_flow_imports_entry(aioclient_mock, hass):
         )
 
     assert result["type"] == "create_entry"
-    assert result["title"] == f"{device.device.product_name} (aabbccddeeff)"
+    assert result["title"] == "P1 meter (aabbccddeeff)"
     assert result["data"][CONF_IP_ADDRESS] == "1.2.3.4"
 
     assert len(hass.config_entries.async_entries(DOMAIN)) == 1
-    assert len(device.initialize.mock_calls) == 1
+    assert len(device.device.mock_calls) == 1
     assert len(device.close.mock_calls) == 1
     assert len(mock_setup_entry.mock_calls) == 1
 
@@ -166,7 +181,10 @@ async def test_discovery_disabled_api(hass, aioclient_mock):
     with patch(
         "homeassistant.components.homewizard.async_setup_entry",
         return_value=True,
-    ), patch("aiohwenergy.HomeWizardEnergy", return_value=get_mock_device()):
+    ), patch(
+        "homeassistant.components.homewizard.config_flow.HomeWizardEnergy",
+        return_value=get_mock_device(),
+    ):
         result = await hass.config_entries.flow.async_configure(
             result["flow_id"], user_input={"ip_address": "192.168.43.183"}
         )
@@ -240,7 +258,7 @@ async def test_check_disabled_api(hass, aioclient_mock):
         raise DisabledError
 
     device = get_mock_device()
-    device.initialize.side_effect = mock_initialize
+    device.device.side_effect = mock_initialize
 
     result = await hass.config_entries.flow.async_init(
         DOMAIN, context={"source": config_entries.SOURCE_USER}
@@ -250,7 +268,7 @@ async def test_check_disabled_api(hass, aioclient_mock):
     assert result["step_id"] == "user"
 
     with patch(
-        "aiohwenergy.HomeWizardEnergy",
+        "homeassistant.components.homewizard.config_flow.HomeWizardEnergy",
         return_value=device,
     ):
         result = await hass.config_entries.flow.async_configure(
@@ -268,7 +286,7 @@ async def test_check_error_handling_api(hass, aioclient_mock):
         raise Exception()
 
     device = get_mock_device()
-    device.initialize.side_effect = mock_initialize
+    device.device.side_effect = mock_initialize
 
     result = await hass.config_entries.flow.async_init(
         DOMAIN, context={"source": config_entries.SOURCE_USER}
@@ -278,32 +296,7 @@ async def test_check_error_handling_api(hass, aioclient_mock):
     assert result["step_id"] == "user"
 
     with patch(
-        "aiohwenergy.HomeWizardEnergy",
-        return_value=device,
-    ):
-        result = await hass.config_entries.flow.async_configure(
-            result["flow_id"], {CONF_IP_ADDRESS: "2.2.2.2"}
-        )
-
-    assert result["type"] == RESULT_TYPE_ABORT
-    assert result["reason"] == "unknown_error"
-
-
-async def test_check_detects_unexpected_api_response(hass, aioclient_mock):
-    """Test check detecting device endpoint failed fetching data."""
-
-    device = get_mock_device()
-    device.device = None
-
-    result = await hass.config_entries.flow.async_init(
-        DOMAIN, context={"source": config_entries.SOURCE_USER}
-    )
-
-    assert result["type"] == "form"
-    assert result["step_id"] == "user"
-
-    with patch(
-        "aiohwenergy.HomeWizardEnergy",
+        "homeassistant.components.homewizard.config_flow.HomeWizardEnergy",
         return_value=device,
     ):
         result = await hass.config_entries.flow.async_configure(
@@ -317,8 +310,11 @@ async def test_check_detects_unexpected_api_response(hass, aioclient_mock):
 async def test_check_detects_invalid_api(hass, aioclient_mock):
     """Test check detecting device endpoint failed fetching data."""
 
+    def mock_initialize():
+        raise UnsupportedError
+
     device = get_mock_device()
-    device.device.api_version = "not_v1"
+    device.device.side_effect = mock_initialize
 
     result = await hass.config_entries.flow.async_init(
         DOMAIN, context={"source": config_entries.SOURCE_USER}
@@ -328,7 +324,7 @@ async def test_check_detects_invalid_api(hass, aioclient_mock):
     assert result["step_id"] == "user"
 
     with patch(
-        "aiohwenergy.HomeWizardEnergy",
+        "homeassistant.components.homewizard.config_flow.HomeWizardEnergy",
         return_value=device,
     ):
         result = await hass.config_entries.flow.async_configure(
@@ -337,27 +333,3 @@ async def test_check_detects_invalid_api(hass, aioclient_mock):
 
     assert result["type"] == RESULT_TYPE_ABORT
     assert result["reason"] == "unsupported_api_version"
-
-
-async def test_check_detects_unsuported_device(hass, aioclient_mock):
-    """Test check detecting device endpoint failed fetching data."""
-
-    device = get_mock_device(product_type="not_an_energy_device")
-
-    result = await hass.config_entries.flow.async_init(
-        DOMAIN, context={"source": config_entries.SOURCE_USER}
-    )
-
-    assert result["type"] == "form"
-    assert result["step_id"] == "user"
-
-    with patch(
-        "aiohwenergy.HomeWizardEnergy",
-        return_value=device,
-    ):
-        result = await hass.config_entries.flow.async_configure(
-            result["flow_id"], {CONF_IP_ADDRESS: "2.2.2.2"}
-        )
-
-    assert result["type"] == RESULT_TYPE_ABORT
-    assert result["reason"] == "device_not_supported"
diff --git a/tests/components/homewizard/test_init.py b/tests/components/homewizard/test_init.py
index 984a5431004..c7cc5bd7bdb 100644
--- a/tests/components/homewizard/test_init.py
+++ b/tests/components/homewizard/test_init.py
@@ -2,7 +2,7 @@
 from asyncio import TimeoutError
 from unittest.mock import patch
 
-from aiohwenergy import AiohwenergyException, DisabledError
+from homewizard_energy.errors import DisabledError, HomeWizardEnergyException
 
 from homeassistant import config_entries
 from homeassistant.components.homewizard.const import DOMAIN
@@ -28,7 +28,7 @@ async def test_load_unload(aioclient_mock, hass):
     entry.add_to_hass(hass)
 
     with patch(
-        "aiohwenergy.HomeWizardEnergy",
+        "homeassistant.components.homewizard.coordinator.HomeWizardEnergy",
         return_value=device,
     ):
         await hass.config_entries.async_setup(entry.entry_id)
@@ -50,7 +50,7 @@ async def test_load_failed_host_unavailable(aioclient_mock, hass):
         raise TimeoutError()
 
     device = get_mock_device()
-    device.initialize.side_effect = MockInitialize
+    device.device.side_effect = MockInitialize
 
     entry = MockConfigEntry(
         domain=DOMAIN,
@@ -60,7 +60,7 @@ async def test_load_failed_host_unavailable(aioclient_mock, hass):
     entry.add_to_hass(hass)
 
     with patch(
-        "aiohwenergy.HomeWizardEnergy",
+        "homeassistant.components.homewizard.coordinator.HomeWizardEnergy",
         return_value=device,
     ):
         await hass.config_entries.async_setup(entry.entry_id)
@@ -127,7 +127,7 @@ async def test_init_accepts_and_migrates_old_entry(aioclient_mock, hass):
 
     # Add the entry_id to trigger migration
     with patch(
-        "aiohwenergy.HomeWizardEnergy",
+        "homeassistant.components.homewizard.coordinator.HomeWizardEnergy",
         return_value=device,
     ):
         await hass.config_entries.async_setup(imported_entry.entry_id)
@@ -168,7 +168,7 @@ async def test_load_detect_api_disabled(aioclient_mock, hass):
         raise DisabledError()
 
     device = get_mock_device()
-    device.initialize.side_effect = MockInitialize
+    device.device.side_effect = MockInitialize
 
     entry = MockConfigEntry(
         domain=DOMAIN,
@@ -178,24 +178,24 @@ async def test_load_detect_api_disabled(aioclient_mock, hass):
     entry.add_to_hass(hass)
 
     with patch(
-        "aiohwenergy.HomeWizardEnergy",
+        "homeassistant.components.homewizard.coordinator.HomeWizardEnergy",
         return_value=device,
     ):
         await hass.config_entries.async_setup(entry.entry_id)
 
     await hass.async_block_till_done()
 
-    assert entry.state is ConfigEntryState.SETUP_ERROR
+    assert entry.state is ConfigEntryState.SETUP_RETRY
 
 
-async def test_load_handles_aiohwenergy_exception(aioclient_mock, hass):
+async def test_load_handles_homewizardenergy_exception(aioclient_mock, hass):
     """Test setup handles exception from API."""
 
     def MockInitialize():
-        raise AiohwenergyException()
+        raise HomeWizardEnergyException()
 
     device = get_mock_device()
-    device.initialize.side_effect = MockInitialize
+    device.device.side_effect = MockInitialize
 
     entry = MockConfigEntry(
         domain=DOMAIN,
@@ -205,7 +205,7 @@ async def test_load_handles_aiohwenergy_exception(aioclient_mock, hass):
     entry.add_to_hass(hass)
 
     with patch(
-        "aiohwenergy.HomeWizardEnergy",
+        "homeassistant.components.homewizard.coordinator.HomeWizardEnergy",
         return_value=device,
     ):
         await hass.config_entries.async_setup(entry.entry_id)
@@ -222,7 +222,7 @@ async def test_load_handles_generic_exception(aioclient_mock, hass):
         raise Exception()
 
     device = get_mock_device()
-    device.initialize.side_effect = MockInitialize
+    device.device.side_effect = MockInitialize
 
     entry = MockConfigEntry(
         domain=DOMAIN,
@@ -232,7 +232,7 @@ async def test_load_handles_generic_exception(aioclient_mock, hass):
     entry.add_to_hass(hass)
 
     with patch(
-        "aiohwenergy.HomeWizardEnergy",
+        "homeassistant.components.homewizard.coordinator.HomeWizardEnergy",
         return_value=device,
     ):
         await hass.config_entries.async_setup(entry.entry_id)
@@ -256,7 +256,7 @@ async def test_load_handles_initialization_error(aioclient_mock, hass):
     entry.add_to_hass(hass)
 
     with patch(
-        "aiohwenergy.HomeWizardEnergy",
+        "homeassistant.components.homewizard.coordinator.HomeWizardEnergy",
         return_value=device,
     ):
         await hass.config_entries.async_setup(entry.entry_id)
diff --git a/tests/components/homewizard/test_sensor.py b/tests/components/homewizard/test_sensor.py
index c1a98c07108..8195aa11708 100644
--- a/tests/components/homewizard/test_sensor.py
+++ b/tests/components/homewizard/test_sensor.py
@@ -3,7 +3,8 @@
 from datetime import timedelta
 from unittest.mock import AsyncMock, patch
 
-from aiohwenergy.errors import DisabledError
+from homewizard_energy.errors import DisabledError, RequestError
+from homewizard_energy.models import Data
 
 from homeassistant.components.sensor import (
     ATTR_STATE_CLASS,
@@ -36,13 +37,10 @@ async def test_sensor_entity_smr_version(
     """Test entity loads smr version."""
 
     api = get_mock_device()
-    api.data.available_datapoints = [
-        "smr_version",
-    ]
-    api.data.smr_version = 50
+    api.data = AsyncMock(return_value=Data.from_dict({"smr_version": 50}))
 
     with patch(
-        "aiohwenergy.HomeWizardEnergy",
+        "homeassistant.components.homewizard.coordinator.HomeWizardEnergy",
         return_value=api,
     ):
         entry = mock_config_entry
@@ -77,13 +75,10 @@ async def test_sensor_entity_meter_model(
     """Test entity loads meter model."""
 
     api = get_mock_device()
-    api.data.available_datapoints = [
-        "meter_model",
-    ]
-    api.data.meter_model = "Model X"
+    api.data = AsyncMock(return_value=Data.from_dict({"meter_model": "Model X"}))
 
     with patch(
-        "aiohwenergy.HomeWizardEnergy",
+        "homeassistant.components.homewizard.coordinator.HomeWizardEnergy",
         return_value=api,
     ):
         entry = mock_config_entry
@@ -118,13 +113,10 @@ async def test_sensor_entity_wifi_ssid(hass, mock_config_entry_data, mock_config
     """Test entity loads wifi ssid."""
 
     api = get_mock_device()
-    api.data.available_datapoints = [
-        "wifi_ssid",
-    ]
-    api.data.wifi_ssid = "My Wifi"
+    api.data = AsyncMock(return_value=Data.from_dict({"wifi_ssid": "My Wifi"}))
 
     with patch(
-        "aiohwenergy.HomeWizardEnergy",
+        "homeassistant.components.homewizard.coordinator.HomeWizardEnergy",
         return_value=api,
     ):
         entry = mock_config_entry
@@ -159,13 +151,10 @@ async def test_sensor_entity_wifi_strength(
     """Test entity loads wifi strength."""
 
     api = get_mock_device()
-    api.data.available_datapoints = [
-        "wifi_strength",
-    ]
-    api.data.wifi_strength = 42
+    api.data = AsyncMock(return_value=Data.from_dict({"wifi_strength": 42}))
 
     with patch(
-        "aiohwenergy.HomeWizardEnergy",
+        "homeassistant.components.homewizard.coordinator.HomeWizardEnergy",
         return_value=api,
     ):
         entry = mock_config_entry
@@ -189,13 +178,12 @@ async def test_sensor_entity_total_power_import_t1_kwh(
     """Test entity loads total power import t1."""
 
     api = get_mock_device()
-    api.data.available_datapoints = [
-        "total_power_import_t1_kwh",
-    ]
-    api.data.total_power_import_t1_kwh = 1234.123
+    api.data = AsyncMock(
+        return_value=Data.from_dict({"total_power_import_t1_kwh": 1234.123})
+    )
 
     with patch(
-        "aiohwenergy.HomeWizardEnergy",
+        "homeassistant.components.homewizard.coordinator.HomeWizardEnergy",
         return_value=api,
     ):
         entry = mock_config_entry
@@ -232,13 +220,12 @@ async def test_sensor_entity_total_power_import_t2_kwh(
     """Test entity loads total power import t2."""
 
     api = get_mock_device()
-    api.data.available_datapoints = [
-        "total_power_import_t2_kwh",
-    ]
-    api.data.total_power_import_t2_kwh = 1234.123
+    api.data = AsyncMock(
+        return_value=Data.from_dict({"total_power_import_t2_kwh": 1234.123})
+    )
 
     with patch(
-        "aiohwenergy.HomeWizardEnergy",
+        "homeassistant.components.homewizard.coordinator.HomeWizardEnergy",
         return_value=api,
     ):
         entry = mock_config_entry
@@ -275,13 +262,12 @@ async def test_sensor_entity_total_power_export_t1_kwh(
     """Test entity loads total power export t1."""
 
     api = get_mock_device()
-    api.data.available_datapoints = [
-        "total_power_export_t1_kwh",
-    ]
-    api.data.total_power_export_t1_kwh = 1234.123
+    api.data = AsyncMock(
+        return_value=Data.from_dict({"total_power_export_t1_kwh": 1234.123})
+    )
 
     with patch(
-        "aiohwenergy.HomeWizardEnergy",
+        "homeassistant.components.homewizard.coordinator.HomeWizardEnergy",
         return_value=api,
     ):
         entry = mock_config_entry
@@ -318,13 +304,12 @@ async def test_sensor_entity_total_power_export_t2_kwh(
     """Test entity loads total power export t2."""
 
     api = get_mock_device()
-    api.data.available_datapoints = [
-        "total_power_export_t2_kwh",
-    ]
-    api.data.total_power_export_t2_kwh = 1234.123
+    api.data = AsyncMock(
+        return_value=Data.from_dict({"total_power_export_t2_kwh": 1234.123})
+    )
 
     with patch(
-        "aiohwenergy.HomeWizardEnergy",
+        "homeassistant.components.homewizard.coordinator.HomeWizardEnergy",
         return_value=api,
     ):
         entry = mock_config_entry
@@ -361,13 +346,10 @@ async def test_sensor_entity_active_power(
     """Test entity loads active power."""
 
     api = get_mock_device()
-    api.data.available_datapoints = [
-        "active_power_w",
-    ]
-    api.data.active_power_w = 123.123
+    api.data = AsyncMock(return_value=Data.from_dict({"active_power_w": 123.123}))
 
     with patch(
-        "aiohwenergy.HomeWizardEnergy",
+        "homeassistant.components.homewizard.coordinator.HomeWizardEnergy",
         return_value=api,
     ):
         entry = mock_config_entry
@@ -402,13 +384,10 @@ async def test_sensor_entity_active_power_l1(
     """Test entity loads active power l1."""
 
     api = get_mock_device()
-    api.data.available_datapoints = [
-        "active_power_l1_w",
-    ]
-    api.data.active_power_l1_w = 123.123
+    api.data = AsyncMock(return_value=Data.from_dict({"active_power_l1_w": 123.123}))
 
     with patch(
-        "aiohwenergy.HomeWizardEnergy",
+        "homeassistant.components.homewizard.coordinator.HomeWizardEnergy",
         return_value=api,
     ):
         entry = mock_config_entry
@@ -445,13 +424,10 @@ async def test_sensor_entity_active_power_l2(
     """Test entity loads active power l2."""
 
     api = get_mock_device()
-    api.data.available_datapoints = [
-        "active_power_l2_w",
-    ]
-    api.data.active_power_l2_w = 456.456
+    api.data = AsyncMock(return_value=Data.from_dict({"active_power_l2_w": 456.456}))
 
     with patch(
-        "aiohwenergy.HomeWizardEnergy",
+        "homeassistant.components.homewizard.coordinator.HomeWizardEnergy",
         return_value=api,
     ):
         entry = mock_config_entry
@@ -488,13 +464,10 @@ async def test_sensor_entity_active_power_l3(
     """Test entity loads active power l3."""
 
     api = get_mock_device()
-    api.data.available_datapoints = [
-        "active_power_l3_w",
-    ]
-    api.data.active_power_l3_w = 789.789
+    api.data = AsyncMock(return_value=Data.from_dict({"active_power_l3_w": 789.789}))
 
     with patch(
-        "aiohwenergy.HomeWizardEnergy",
+        "homeassistant.components.homewizard.coordinator.HomeWizardEnergy",
         return_value=api,
     ):
         entry = mock_config_entry
@@ -529,13 +502,10 @@ async def test_sensor_entity_total_gas(hass, mock_config_entry_data, mock_config
     """Test entity loads total gas."""
 
     api = get_mock_device()
-    api.data.available_datapoints = [
-        "total_gas_m3",
-    ]
-    api.data.total_gas_m3 = 50
+    api.data = AsyncMock(return_value=Data.from_dict({"total_gas_m3": 50}))
 
     with patch(
-        "aiohwenergy.HomeWizardEnergy",
+        "homeassistant.components.homewizard.coordinator.HomeWizardEnergy",
         return_value=api,
     ):
         entry = mock_config_entry
@@ -570,17 +540,14 @@ async def test_sensor_entity_disabled_when_null(
     """Test sensor disables data with null by default."""
 
     api = get_mock_device()
-    api.data.available_datapoints = [
-        "active_power_l2_w",
-        "active_power_l3_w",
-        "total_gas_m3",
-    ]
-    api.data.active_power_l2_w = None
-    api.data.active_power_l3_w = None
-    api.data.total_gas_m3 = None
+    api.data = AsyncMock(
+        return_value=Data.from_dict(
+            {"active_power_l2_w": None, "active_power_l3_w": None, "total_gas_m3": None}
+        )
+    )
 
     with patch(
-        "aiohwenergy.HomeWizardEnergy",
+        "homeassistant.components.homewizard.coordinator.HomeWizardEnergy",
         return_value=api,
     ):
         entry = mock_config_entry
@@ -612,15 +579,14 @@ async def test_sensor_entity_export_disabled_when_unused(
     """Test sensor disables export if value is 0."""
 
     api = get_mock_device()
-    api.data.available_datapoints = [
-        "total_power_export_t1_kwh",
-        "total_power_export_t2_kwh",
-    ]
-    api.data.total_power_export_t1_kwh = 0
-    api.data.total_power_export_t2_kwh = 0
+    api.data = AsyncMock(
+        return_value=Data.from_dict(
+            {"total_power_export_t1_kwh": 0, "total_power_export_t2_kwh": 0}
+        )
+    )
 
     with patch(
-        "aiohwenergy.HomeWizardEnergy",
+        "homeassistant.components.homewizard.coordinator.HomeWizardEnergy",
         return_value=api,
     ):
         entry = mock_config_entry
@@ -649,17 +615,14 @@ async def test_sensors_unreachable(hass, mock_config_entry_data, mock_config_ent
     """Test sensor handles api unreachable."""
 
     api = get_mock_device()
-    api.data.available_datapoints = [
-        "total_power_import_t1_kwh",
-    ]
-    api.data.total_power_import_t1_kwh = 1234.123
+    api.data = AsyncMock(
+        return_value=Data.from_dict({"total_power_import_t1_kwh": 1234.123})
+    )
 
     with patch(
-        "aiohwenergy.HomeWizardEnergy",
+        "homeassistant.components.homewizard.coordinator.HomeWizardEnergy",
         return_value=api,
     ):
-        api.update = AsyncMock(return_value=True)
-
         entry = mock_config_entry
         entry.data = mock_config_entry_data
         entry.add_to_hass(hass)
@@ -675,7 +638,7 @@ async def test_sensors_unreachable(hass, mock_config_entry_data, mock_config_ent
             == "1234.123"
         )
 
-        api.update = AsyncMock(return_value=False)
+        api.data.side_effect = RequestError
         async_fire_time_changed(hass, utcnow + timedelta(seconds=5))
         await hass.async_block_till_done()
         assert (
@@ -685,7 +648,7 @@ async def test_sensors_unreachable(hass, mock_config_entry_data, mock_config_ent
             == "unavailable"
         )
 
-        api.update = AsyncMock(return_value=True)
+        api.data.side_effect = None
         async_fire_time_changed(hass, utcnow + timedelta(seconds=10))
         await hass.async_block_till_done()
         assert (
@@ -700,17 +663,14 @@ async def test_api_disabled(hass, mock_config_entry_data, mock_config_entry):
     """Test sensor handles api unreachable."""
 
     api = get_mock_device()
-    api.data.available_datapoints = [
-        "total_power_import_t1_kwh",
-    ]
-    api.data.total_power_import_t1_kwh = 1234.123
+    api.data = AsyncMock(
+        return_value=Data.from_dict({"total_power_import_t1_kwh": 1234.123})
+    )
 
     with patch(
-        "aiohwenergy.HomeWizardEnergy",
+        "homeassistant.components.homewizard.coordinator.HomeWizardEnergy",
         return_value=api,
     ):
-        api.update = AsyncMock(return_value=True)
-
         entry = mock_config_entry
         entry.data = mock_config_entry_data
         entry.add_to_hass(hass)
@@ -726,7 +686,7 @@ async def test_api_disabled(hass, mock_config_entry_data, mock_config_entry):
             == "1234.123"
         )
 
-        api.update = AsyncMock(side_effect=DisabledError)
+        api.data.side_effect = DisabledError
         async_fire_time_changed(hass, utcnow + timedelta(seconds=5))
         await hass.async_block_till_done()
         assert (
@@ -736,7 +696,7 @@ async def test_api_disabled(hass, mock_config_entry_data, mock_config_entry):
             == "unavailable"
         )
 
-        api.update = AsyncMock(return_value=True)
+        api.data.side_effect = None
         async_fire_time_changed(hass, utcnow + timedelta(seconds=10))
         await hass.async_block_till_done()
         assert (
diff --git a/tests/components/homewizard/test_switch.py b/tests/components/homewizard/test_switch.py
index f3792a9d75b..118f0774a47 100644
--- a/tests/components/homewizard/test_switch.py
+++ b/tests/components/homewizard/test_switch.py
@@ -2,6 +2,8 @@
 
 from unittest.mock import AsyncMock, patch
 
+from homewizard_energy.models import State
+
 from homeassistant.components import switch
 from homeassistant.components.switch import DEVICE_CLASS_OUTLET, DEVICE_CLASS_SWITCH
 from homeassistant.const import (
@@ -27,7 +29,7 @@ async def test_switch_entity_not_loaded_when_not_available(
     api = get_mock_device()
 
     with patch(
-        "aiohwenergy.HomeWizardEnergy",
+        "homeassistant.components.homewizard.coordinator.HomeWizardEnergy",
         return_value=api,
     ):
         entry = mock_config_entry
@@ -48,13 +50,12 @@ async def test_switch_loads_entities(hass, mock_config_entry_data, mock_config_e
     """Test entity loads smr version."""
 
     api = get_mock_device()
-    api.state = AsyncMock()
-
-    api.state.power_on = False
-    api.state.switch_lock = False
+    api.state = AsyncMock(
+        return_value=State.from_dict({"power_on": False, "switch_lock": False})
+    )
 
     with patch(
-        "aiohwenergy.HomeWizardEnergy",
+        "homeassistant.components.homewizard.coordinator.HomeWizardEnergy",
         return_value=api,
     ):
         entry = mock_config_entry
@@ -104,17 +105,19 @@ async def test_switch_power_on_off(hass, mock_config_entry_data, mock_config_ent
     """Test entity turns switch on and off."""
 
     api = get_mock_device()
-    api.state = AsyncMock()
-    api.state.power_on = False
-    api.state.switch_lock = False
+    api.state = AsyncMock(
+        return_value=State.from_dict({"power_on": False, "switch_lock": False})
+    )
 
-    def set_power_on(power_on):
-        api.state.power_on = power_on
+    def state_set(power_on):
+        api.state = AsyncMock(
+            return_value=State.from_dict({"power_on": power_on, "switch_lock": False})
+        )
 
-    api.state.set = AsyncMock(side_effect=set_power_on)
+    api.state_set = AsyncMock(side_effect=state_set)
 
     with patch(
-        "aiohwenergy.HomeWizardEnergy",
+        "homeassistant.components.homewizard.coordinator.HomeWizardEnergy",
         return_value=api,
     ):
         entry = mock_config_entry
@@ -138,7 +141,7 @@ async def test_switch_power_on_off(hass, mock_config_entry_data, mock_config_ent
         )
 
         await hass.async_block_till_done()
-        assert len(api.state.set.mock_calls) == 1
+        assert len(api.state_set.mock_calls) == 1
         assert (
             hass.states.get("switch.product_name_aabbccddeeff_switch").state == STATE_ON
         )
@@ -156,7 +159,7 @@ async def test_switch_power_on_off(hass, mock_config_entry_data, mock_config_ent
             hass.states.get("switch.product_name_aabbccddeeff_switch").state
             == STATE_OFF
         )
-        assert len(api.state.set.mock_calls) == 2
+        assert len(api.state_set.mock_calls) == 2
 
 
 async def test_switch_lock_power_on_off(
@@ -165,17 +168,19 @@ async def test_switch_lock_power_on_off(
     """Test entity turns switch on and off."""
 
     api = get_mock_device()
-    api.state = AsyncMock()
-    api.state.power_on = False
-    api.state.switch_lock = False
+    api.state = AsyncMock(
+        return_value=State.from_dict({"power_on": False, "switch_lock": False})
+    )
 
-    def set_switch_lock(switch_lock):
-        api.state.switch_lock = switch_lock
+    def state_set(switch_lock):
+        api.state = AsyncMock(
+            return_value=State.from_dict({"power_on": True, "switch_lock": switch_lock})
+        )
 
-    api.state.set = AsyncMock(side_effect=set_switch_lock)
+    api.state_set = AsyncMock(side_effect=state_set)
 
     with patch(
-        "aiohwenergy.HomeWizardEnergy",
+        "homeassistant.components.homewizard.coordinator.HomeWizardEnergy",
         return_value=api,
     ):
         entry = mock_config_entry
@@ -199,7 +204,7 @@ async def test_switch_lock_power_on_off(
         )
 
         await hass.async_block_till_done()
-        assert len(api.state.set.mock_calls) == 1
+        assert len(api.state_set.mock_calls) == 1
         assert (
             hass.states.get("switch.product_name_aabbccddeeff_switch_lock").state
             == STATE_ON
@@ -218,7 +223,7 @@ async def test_switch_lock_power_on_off(
             hass.states.get("switch.product_name_aabbccddeeff_switch_lock").state
             == STATE_OFF
         )
-        assert len(api.state.set.mock_calls) == 2
+        assert len(api.state_set.mock_calls) == 2
 
 
 async def test_switch_lock_sets_power_on_unavailable(
@@ -227,17 +232,19 @@ async def test_switch_lock_sets_power_on_unavailable(
     """Test entity turns switch on and off."""
 
     api = get_mock_device()
-    api.state = AsyncMock()
-    api.state.power_on = True
-    api.state.switch_lock = False
+    api.state = AsyncMock(
+        return_value=State.from_dict({"power_on": True, "switch_lock": False})
+    )
 
-    def set_switch_lock(switch_lock):
-        api.state.switch_lock = switch_lock
+    def state_set(switch_lock):
+        api.state = AsyncMock(
+            return_value=State.from_dict({"power_on": True, "switch_lock": switch_lock})
+        )
 
-    api.state.set = AsyncMock(side_effect=set_switch_lock)
+    api.state_set = AsyncMock(side_effect=state_set)
 
     with patch(
-        "aiohwenergy.HomeWizardEnergy",
+        "homeassistant.components.homewizard.coordinator.HomeWizardEnergy",
         return_value=api,
     ):
         entry = mock_config_entry
@@ -264,7 +271,7 @@ async def test_switch_lock_sets_power_on_unavailable(
         )
 
         await hass.async_block_till_done()
-        assert len(api.state.set.mock_calls) == 1
+        assert len(api.state_set.mock_calls) == 1
         assert (
             hass.states.get("switch.product_name_aabbccddeeff_switch").state
             == STATE_UNAVAILABLE
@@ -290,4 +297,4 @@ async def test_switch_lock_sets_power_on_unavailable(
             hass.states.get("switch.product_name_aabbccddeeff_switch_lock").state
             == STATE_OFF
         )
-        assert len(api.state.set.mock_calls) == 2
+        assert len(api.state_set.mock_calls) == 2