diff --git a/homeassistant/components/homewizard/__init__.py b/homeassistant/components/homewizard/__init__.py
index 5c41e0e2925..c123c9d34e1 100644
--- a/homeassistant/components/homewizard/__init__.py
+++ b/homeassistant/components/homewizard/__init__.py
@@ -1,6 +1,4 @@
 """The Homewizard integration."""
-import logging
-
 from homeassistant.config_entries import SOURCE_REAUTH, ConfigEntry
 from homeassistant.const import CONF_IP_ADDRESS
 from homeassistant.core import HomeAssistant
@@ -9,8 +7,6 @@ from homeassistant.exceptions import ConfigEntryNotReady
 from .const import DOMAIN, PLATFORMS
 from .coordinator import HWEnergyDeviceUpdateCoordinator as Coordinator
 
-_LOGGER = logging.getLogger(__name__)
-
 
 async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Homewizard from a config entry."""
@@ -19,22 +15,23 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
         await coordinator.async_config_entry_first_refresh()
 
     except ConfigEntryNotReady:
-        await coordinator.api.close()
+        await coordinator.api.close()  # type: ignore[no-untyped-call]
 
         if coordinator.api_disabled:
             entry.async_start_reauth(hass)
 
         raise
 
+    hass.data.setdefault(DOMAIN, {})[entry.entry_id] = coordinator
+
     # Abort reauth config flow if active
     for progress_flow in hass.config_entries.flow.async_progress_by_handler(DOMAIN):
-        if progress_flow["context"].get("source") == SOURCE_REAUTH:
+        if (
+            "context" in progress_flow
+            and progress_flow["context"].get("source") == SOURCE_REAUTH
+        ):
             hass.config_entries.flow.async_abort(progress_flow["flow_id"])
 
-    # Setup entry
-    hass.data.setdefault(DOMAIN, {})
-    hass.data[DOMAIN][entry.entry_id] = coordinator
-
     # Finalize
     await hass.config_entries.async_forward_entry_setups(entry, PLATFORMS)
 
@@ -43,12 +40,7 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
 
 async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Unload a config entry."""
-    _LOGGER.debug("__init__ async_unload_entry")
-
-    unload_ok = await hass.config_entries.async_unload_platforms(entry, PLATFORMS)
-
-    if unload_ok:
+    if unload_ok := await hass.config_entries.async_unload_platforms(entry, PLATFORMS):
         coordinator = hass.data[DOMAIN].pop(entry.entry_id)
         await coordinator.api.close()
-
     return unload_ok
diff --git a/homeassistant/components/homewizard/config_flow.py b/homeassistant/components/homewizard/config_flow.py
index 3ae2d5fba17..1960b2e79a7 100644
--- a/homeassistant/components/homewizard/config_flow.py
+++ b/homeassistant/components/homewizard/config_flow.py
@@ -251,7 +251,7 @@ class ConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
             raise AbortFlow("unknown_error") from ex
 
         finally:
-            await energy_api.close()
+            await energy_api.close()  # type: ignore[no-untyped-call]
 
     async def _async_set_and_check_unique_id(self, entry_info: dict[str, Any]) -> None:
         """Validate if entry exists."""
diff --git a/homeassistant/components/homewizard/const.py b/homeassistant/components/homewizard/const.py
index e5ceb5ab23d..7627d48accb 100644
--- a/homeassistant/components/homewizard/const.py
+++ b/homeassistant/components/homewizard/const.py
@@ -1,8 +1,8 @@
 """Constants for the Homewizard integration."""
 from __future__ import annotations
 
+from dataclasses import dataclass
 from datetime import timedelta
-from typing import TypedDict
 
 # Set up.
 from homewizard_energy.models import Data, Device, State, System
@@ -24,10 +24,11 @@ CONF_SERIAL = "serial"
 UPDATE_INTERVAL = timedelta(seconds=5)
 
 
-class DeviceResponseEntry(TypedDict):
+@dataclass
+class DeviceResponseEntry:
     """Dict describing a single response entry."""
 
     device: Device
     data: Data
-    state: State
-    system: System
+    state: State | None
+    system: System | None = None
diff --git a/homeassistant/components/homewizard/coordinator.py b/homeassistant/components/homewizard/coordinator.py
index c97a1319407..f49f7f8ccdc 100644
--- a/homeassistant/components/homewizard/coordinator.py
+++ b/homeassistant/components/homewizard/coordinator.py
@@ -39,16 +39,15 @@ class HWEnergyDeviceUpdateCoordinator(DataUpdateCoordinator[DeviceResponseEntry]
 
         # Update all properties
         try:
-            data: DeviceResponseEntry = {
-                "device": await self.api.device(),
-                "data": await self.api.data(),
-                "state": await self.api.state(),
-                "system": None,
-            }
+            data = DeviceResponseEntry(
+                device=await self.api.device(),
+                data=await self.api.data(),
+                state=await self.api.state(),
+            )
 
             features = await self.api.features()
             if features.has_system:
-                data["system"] = await self.api.system()
+                data.system = await self.api.system()
 
         except RequestError as ex:
             raise UpdateFailed(ex) from ex
diff --git a/homeassistant/components/homewizard/diagnostics.py b/homeassistant/components/homewizard/diagnostics.py
index a0c852cf4b6..814c3b78355 100644
--- a/homeassistant/components/homewizard/diagnostics.py
+++ b/homeassistant/components/homewizard/diagnostics.py
@@ -22,13 +22,13 @@ async def async_get_config_entry_diagnostics(
     coordinator: HWEnergyDeviceUpdateCoordinator = hass.data[DOMAIN][entry.entry_id]
 
     meter_data = {
-        "device": asdict(coordinator.data["device"]),
-        "data": asdict(coordinator.data["data"]),
-        "state": asdict(coordinator.data["state"])
-        if coordinator.data["state"] is not None
+        "device": asdict(coordinator.data.device),
+        "data": asdict(coordinator.data.data),
+        "state": asdict(coordinator.data.state)
+        if coordinator.data.state is not None
         else None,
-        "system": asdict(coordinator.data["system"])
-        if coordinator.data["system"] is not None
+        "system": asdict(coordinator.data.system)
+        if coordinator.data.system is not None
         else None,
     }
 
diff --git a/homeassistant/components/homewizard/entity.py b/homeassistant/components/homewizard/entity.py
index 604759e1e91..2aa1b0369d9 100644
--- a/homeassistant/components/homewizard/entity.py
+++ b/homeassistant/components/homewizard/entity.py
@@ -1,6 +1,7 @@
 """Base entity for the HomeWizard integration."""
 from __future__ import annotations
 
+from homeassistant.const import ATTR_IDENTIFIERS
 from homeassistant.helpers.entity import DeviceInfo
 from homeassistant.helpers.update_coordinator import CoordinatorEntity
 
@@ -19,7 +20,11 @@ class HomeWizardEntity(CoordinatorEntity[HWEnergyDeviceUpdateCoordinator]):
         self._attr_device_info = DeviceInfo(
             name=coordinator.entry.title,
             manufacturer="HomeWizard",
-            sw_version=coordinator.data["device"].firmware_version,
-            model=coordinator.data["device"].product_type,
-            identifiers={(DOMAIN, coordinator.data["device"].serial)},
+            sw_version=coordinator.data.device.firmware_version,
+            model=coordinator.data.device.product_type,
         )
+
+        if coordinator.data.device.serial is not None:
+            self._attr_device_info[ATTR_IDENTIFIERS] = {
+                (DOMAIN, coordinator.data.device.serial)
+            }
diff --git a/homeassistant/components/homewizard/helpers.py b/homeassistant/components/homewizard/helpers.py
index 59aae7367ec..953bdd0c0a6 100644
--- a/homeassistant/components/homewizard/helpers.py
+++ b/homeassistant/components/homewizard/helpers.py
@@ -21,7 +21,8 @@ def homewizard_exception_handler(
     """Decorate HomeWizard Energy calls to handle HomeWizardEnergy exceptions.
 
     A decorator that wraps the passed in function, catches HomeWizardEnergy errors,
-    and reloads the integration when the API was disabled so the reauth flow is triggered.
+    and reloads the integration when the API was disabled so the reauth flow is
+    triggered.
     """
 
     async def handler(
@@ -29,7 +30,6 @@ def homewizard_exception_handler(
     ) -> None:
         try:
             await func(self, *args, **kwargs)
-
         except RequestError as ex:
             raise HomeAssistantError from ex
         except DisabledError as ex:
diff --git a/homeassistant/components/homewizard/manifest.json b/homeassistant/components/homewizard/manifest.json
index 8af3ba4b297..9ad05ff89a0 100644
--- a/homeassistant/components/homewizard/manifest.json
+++ b/homeassistant/components/homewizard/manifest.json
@@ -4,7 +4,7 @@
   "documentation": "https://www.home-assistant.io/integrations/homewizard",
   "codeowners": ["@DCSBL"],
   "dependencies": [],
-  "requirements": ["python-homewizard-energy==1.4.0"],
+  "requirements": ["python-homewizard-energy==1.5.0"],
   "zeroconf": ["_hwenergy._tcp.local."],
   "config_flow": true,
   "quality_scale": "platinum",
diff --git a/homeassistant/components/homewizard/number.py b/homeassistant/components/homewizard/number.py
index 82218a11d5a..605d0371386 100644
--- a/homeassistant/components/homewizard/number.py
+++ b/homeassistant/components/homewizard/number.py
@@ -1,8 +1,6 @@
 """Creates HomeWizard Number entities."""
 from __future__ import annotations
 
-from typing import Optional, cast
-
 from homeassistant.components.number import NumberEntity
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import PERCENTAGE
@@ -23,19 +21,17 @@ async def async_setup_entry(
 ) -> None:
     """Set up numbers for device."""
     coordinator: HWEnergyDeviceUpdateCoordinator = hass.data[DOMAIN][entry.entry_id]
-
-    if coordinator.data["state"]:
-        async_add_entities(
-            [
-                HWEnergyNumberEntity(coordinator, entry),
-            ]
-        )
+    if coordinator.data.state:
+        async_add_entities([HWEnergyNumberEntity(coordinator, entry)])
 
 
 class HWEnergyNumberEntity(HomeWizardEntity, NumberEntity):
     """Representation of status light number."""
 
     _attr_entity_category = EntityCategory.CONFIG
+    _attr_icon = "mdi:lightbulb-on"
+    _attr_name = "Status light brightness"
+    _attr_native_unit_of_measurement = PERCENTAGE
 
     def __init__(
         self,
@@ -45,20 +41,19 @@ class HWEnergyNumberEntity(HomeWizardEntity, NumberEntity):
         """Initialize the control number."""
         super().__init__(coordinator)
         self._attr_unique_id = f"{entry.unique_id}_status_light_brightness"
-        self._attr_name = "Status light brightness"
-        self._attr_native_unit_of_measurement = PERCENTAGE
-        self._attr_icon = "mdi:lightbulb-on"
 
     @homewizard_exception_handler
     async def async_set_native_value(self, value: float) -> None:
         """Set a new value."""
-        await self.coordinator.api.state_set(brightness=value * (255 / 100))
+        await self.coordinator.api.state_set(brightness=int(value * (255 / 100)))
         await self.coordinator.async_refresh()
 
     @property
     def native_value(self) -> float | None:
         """Return the current value."""
-        brightness = cast(Optional[float], self.coordinator.data["state"].brightness)
-        if brightness is None:
+        if (
+            self.coordinator.data.state is None
+            or self.coordinator.data.state.brightness is None
+        ):
             return None
-        return round(brightness * (100 / 255))
+        return round(self.coordinator.data.state.brightness * (100 / 255))
diff --git a/homeassistant/components/homewizard/sensor.py b/homeassistant/components/homewizard/sensor.py
index 79fb2a72aef..0e7a494dcd8 100644
--- a/homeassistant/components/homewizard/sensor.py
+++ b/homeassistant/components/homewizard/sensor.py
@@ -137,11 +137,13 @@ async def async_setup_entry(
     """Initialize sensors."""
     coordinator: HWEnergyDeviceUpdateCoordinator = hass.data[DOMAIN][entry.entry_id]
 
-    entities = []
-    if coordinator.data["data"] is not None:
-        for description in SENSORS:
-            if getattr(coordinator.data["data"], description.key) is not None:
-                entities.append(HWEnergySensor(coordinator, entry, description))
+    entities: list[HWEnergySensor] = []
+    if coordinator.data.data is not None:
+        entities.extend(
+            HWEnergySensor(coordinator, entry, description)
+            for description in SENSORS
+            if getattr(coordinator.data.data, description.key) is not None
+        )
     async_add_entities(entities)
 
 
@@ -166,12 +168,15 @@ class HWEnergySensor(HomeWizardEntity, SensorEntity):
 
         # Special case for export, not everyone has solarpanels
         # The chance that 'export' is non-zero when you have solar panels is nil
-        if self.data_type in [
-            "total_power_export_t1_kwh",
-            "total_power_export_t2_kwh",
-        ]:
-            if self.native_value == 0:
-                self._attr_entity_registry_enabled_default = False
+        if (
+            self.data_type
+            in [
+                "total_power_export_t1_kwh",
+                "total_power_export_t2_kwh",
+            ]
+            and self.native_value == 0
+        ):
+            self._attr_entity_registry_enabled_default = False
 
     @property
     def data(self) -> DeviceResponseEntry:
@@ -181,7 +186,7 @@ class HWEnergySensor(HomeWizardEntity, SensorEntity):
     @property
     def native_value(self) -> StateType:
         """Return state of meter."""
-        return cast(StateType, getattr(self.data["data"], self.data_type))
+        return cast(StateType, getattr(self.data.data, self.data_type))
 
     @property
     def available(self) -> bool:
diff --git a/homeassistant/components/homewizard/switch.py b/homeassistant/components/homewizard/switch.py
index fcc157734f4..1f76940fb1b 100644
--- a/homeassistant/components/homewizard/switch.py
+++ b/homeassistant/components/homewizard/switch.py
@@ -25,11 +25,11 @@ async def async_setup_entry(
 
     entities: list[SwitchEntity] = []
 
-    if coordinator.data["state"]:
+    if coordinator.data.state:
         entities.append(HWEnergyMainSwitchEntity(coordinator, entry))
         entities.append(HWEnergySwitchLockEntity(coordinator, entry))
 
-    if coordinator.data["system"]:
+    if coordinator.data.system:
         entities.append(HWEnergyEnableCloudEntity(hass, coordinator, entry))
 
     async_add_entities(entities)
@@ -79,12 +79,18 @@ class HWEnergyMainSwitchEntity(HWEnergySwitchEntity):
 
         This switch becomes unavailable when switch_lock is enabled.
         """
-        return super().available and not self.coordinator.data["state"].switch_lock
+        return (
+            super().available
+            and self.coordinator.data.state is not None
+            and not self.coordinator.data.state.switch_lock
+        )
 
     @property
-    def is_on(self) -> bool:
+    def is_on(self) -> bool | None:
         """Return true if switch is on."""
-        return bool(self.coordinator.data["state"].power_on)
+        if self.coordinator.data.state is None:
+            return None
+        return self.coordinator.data.state.power_on
 
 
 class HWEnergySwitchLockEntity(HWEnergySwitchEntity):
@@ -118,9 +124,11 @@ class HWEnergySwitchLockEntity(HWEnergySwitchEntity):
         await self.coordinator.async_refresh()
 
     @property
-    def is_on(self) -> bool:
+    def is_on(self) -> bool | None:
         """Return true if switch is on."""
-        return bool(self.coordinator.data["state"].switch_lock)
+        if self.coordinator.data.state is None:
+            return None
+        return self.coordinator.data.state.switch_lock
 
 
 class HWEnergyEnableCloudEntity(HWEnergySwitchEntity):
@@ -164,6 +172,8 @@ class HWEnergyEnableCloudEntity(HWEnergySwitchEntity):
         return "mdi:cloud" if self.is_on else "mdi:cloud-off-outline"
 
     @property
-    def is_on(self) -> bool:
+    def is_on(self) -> bool | None:
         """Return true if cloud connection is active."""
-        return bool(self.coordinator.data["system"].cloud_enabled)
+        if self.coordinator.data.system is None:
+            return None
+        return self.coordinator.data.system.cloud_enabled
diff --git a/requirements_all.txt b/requirements_all.txt
index 5970eca0153..9a71bfe20f9 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -2039,7 +2039,7 @@ python-gc100==1.0.3a0
 python-gitlab==1.6.0
 
 # homeassistant.components.homewizard
-python-homewizard-energy==1.4.0
+python-homewizard-energy==1.5.0
 
 # homeassistant.components.hp_ilo
 python-hpilo==4.3
diff --git a/requirements_test_all.txt b/requirements_test_all.txt
index 8c0d61eb173..f1a7befbce8 100644
--- a/requirements_test_all.txt
+++ b/requirements_test_all.txt
@@ -1444,7 +1444,7 @@ python-forecastio==1.4.0
 python-fullykiosk==0.0.12
 
 # homeassistant.components.homewizard
-python-homewizard-energy==1.4.0
+python-homewizard-energy==1.5.0
 
 # homeassistant.components.izone
 python-izone==1.2.9