diff --git a/homeassistant/components/solarlog/const.py b/homeassistant/components/solarlog/const.py
index 3159bc46218..769064089b2 100644
--- a/homeassistant/components/solarlog/const.py
+++ b/homeassistant/components/solarlog/const.py
@@ -1,7 +1,9 @@
 """Constants for the Solar-Log integration."""
 from __future__ import annotations
 
+from collections.abc import Callable
 from dataclasses import dataclass
+from datetime import datetime
 
 from homeassistant.components.sensor import (
     SensorDeviceClass,
@@ -14,6 +16,7 @@ from homeassistant.const import (
     PERCENTAGE,
     POWER_WATT,
 )
+from homeassistant.util.dt import as_local
 
 DOMAIN = "solarlog"
 
@@ -26,7 +29,7 @@ DEFAULT_NAME = "solarlog"
 class SolarLogSensorEntityDescription(SensorEntityDescription):
     """Describes Solarlog sensor entity."""
 
-    factor: float | None = None
+    value: Callable[[float | int], float] | Callable[[datetime], datetime] | None = None
 
 
 SENSOR_TYPES: tuple[SolarLogSensorEntityDescription, ...] = (
@@ -34,6 +37,7 @@ SENSOR_TYPES: tuple[SolarLogSensorEntityDescription, ...] = (
         key="time",
         name="last update",
         device_class=SensorDeviceClass.TIMESTAMP,
+        value=as_local,
     ),
     SolarLogSensorEntityDescription(
         key="power_ac",
@@ -68,36 +72,41 @@ SENSOR_TYPES: tuple[SolarLogSensorEntityDescription, ...] = (
         name="yield day",
         icon="mdi:solar-power",
         native_unit_of_measurement=ENERGY_KILO_WATT_HOUR,
-        factor=0.001,
+        device_class=SensorDeviceClass.ENERGY,
+        value=lambda value: round(value / 1000, 3),
     ),
     SolarLogSensorEntityDescription(
         key="yield_yesterday",
         name="yield yesterday",
         icon="mdi:solar-power",
         native_unit_of_measurement=ENERGY_KILO_WATT_HOUR,
-        factor=0.001,
+        device_class=SensorDeviceClass.ENERGY,
+        value=lambda value: round(value / 1000, 3),
     ),
     SolarLogSensorEntityDescription(
         key="yield_month",
         name="yield month",
         icon="mdi:solar-power",
         native_unit_of_measurement=ENERGY_KILO_WATT_HOUR,
-        factor=0.001,
+        device_class=SensorDeviceClass.ENERGY,
+        value=lambda value: round(value / 1000, 3),
     ),
     SolarLogSensorEntityDescription(
         key="yield_year",
         name="yield year",
         icon="mdi:solar-power",
         native_unit_of_measurement=ENERGY_KILO_WATT_HOUR,
-        factor=0.001,
+        device_class=SensorDeviceClass.ENERGY,
+        value=lambda value: round(value / 1000, 3),
     ),
     SolarLogSensorEntityDescription(
         key="yield_total",
         name="yield total",
         icon="mdi:solar-power",
         native_unit_of_measurement=ENERGY_KILO_WATT_HOUR,
+        device_class=SensorDeviceClass.ENERGY,
         state_class=SensorStateClass.TOTAL,
-        factor=0.001,
+        value=lambda value: round(value / 1000, 3),
     ),
     SolarLogSensorEntityDescription(
         key="consumption_ac",
@@ -111,28 +120,28 @@ SENSOR_TYPES: tuple[SolarLogSensorEntityDescription, ...] = (
         name="consumption day",
         native_unit_of_measurement=ENERGY_KILO_WATT_HOUR,
         device_class=SensorDeviceClass.ENERGY,
-        factor=0.001,
+        value=lambda value: round(value / 1000, 3),
     ),
     SolarLogSensorEntityDescription(
         key="consumption_yesterday",
         name="consumption yesterday",
         native_unit_of_measurement=ENERGY_KILO_WATT_HOUR,
         device_class=SensorDeviceClass.ENERGY,
-        factor=0.001,
+        value=lambda value: round(value / 1000, 3),
     ),
     SolarLogSensorEntityDescription(
         key="consumption_month",
         name="consumption month",
         native_unit_of_measurement=ENERGY_KILO_WATT_HOUR,
         device_class=SensorDeviceClass.ENERGY,
-        factor=0.001,
+        value=lambda value: round(value / 1000, 3),
     ),
     SolarLogSensorEntityDescription(
         key="consumption_year",
         name="consumption year",
         native_unit_of_measurement=ENERGY_KILO_WATT_HOUR,
         device_class=SensorDeviceClass.ENERGY,
-        factor=0.001,
+        value=lambda value: round(value / 1000, 3),
     ),
     SolarLogSensorEntityDescription(
         key="consumption_total",
@@ -140,7 +149,7 @@ SENSOR_TYPES: tuple[SolarLogSensorEntityDescription, ...] = (
         native_unit_of_measurement=ENERGY_KILO_WATT_HOUR,
         device_class=SensorDeviceClass.ENERGY,
         state_class=SensorStateClass.TOTAL,
-        factor=0.001,
+        value=lambda value: round(value / 1000, 3),
     ),
     SolarLogSensorEntityDescription(
         key="total_power",
@@ -164,7 +173,7 @@ SENSOR_TYPES: tuple[SolarLogSensorEntityDescription, ...] = (
         native_unit_of_measurement=PERCENTAGE,
         device_class=SensorDeviceClass.POWER_FACTOR,
         state_class=SensorStateClass.MEASUREMENT,
-        factor=100,
+        value=lambda value: round(value * 100, 1),
     ),
     SolarLogSensorEntityDescription(
         key="efficiency",
@@ -172,7 +181,7 @@ SENSOR_TYPES: tuple[SolarLogSensorEntityDescription, ...] = (
         native_unit_of_measurement=PERCENTAGE,
         device_class=SensorDeviceClass.POWER_FACTOR,
         state_class=SensorStateClass.MEASUREMENT,
-        factor=100,
+        value=lambda value: round(value * 100, 1),
     ),
     SolarLogSensorEntityDescription(
         key="power_available",
@@ -188,6 +197,6 @@ SENSOR_TYPES: tuple[SolarLogSensorEntityDescription, ...] = (
         native_unit_of_measurement=PERCENTAGE,
         device_class=SensorDeviceClass.POWER_FACTOR,
         state_class=SensorStateClass.MEASUREMENT,
-        factor=100,
+        value=lambda value: round(value * 100, 1),
     ),
 )
diff --git a/homeassistant/components/solarlog/sensor.py b/homeassistant/components/solarlog/sensor.py
index 5c4c2bfad28..511f29338b8 100644
--- a/homeassistant/components/solarlog/sensor.py
+++ b/homeassistant/components/solarlog/sensor.py
@@ -2,7 +2,6 @@
 from homeassistant.components.sensor import SensorEntity
 from homeassistant.helpers import update_coordinator
 from homeassistant.helpers.entity import DeviceInfo
-from homeassistant.util.dt import as_local
 
 from . import SolarlogData
 from .const import DOMAIN, SENSOR_TYPES, SolarLogSensorEntityDescription
@@ -41,14 +40,7 @@ class SolarlogSensor(update_coordinator.CoordinatorEntity, SensorEntity):
     @property
     def native_value(self):
         """Return the native sensor value."""
-        if self.entity_description.key == "time":
-            state = as_local(
-                getattr(self.coordinator.data, self.entity_description.key)
-            )
-        else:
-            result = getattr(self.coordinator.data, self.entity_description.key)
-            if self.entity_description.factor:
-                state = round(result * self.entity_description.factor, 3)
-            else:
-                state = result
-        return state
+        raw_attr = getattr(self.coordinator.data, self.entity_description.key)
+        if self.entity_description.value:
+            return self.entity_description.value(raw_attr)
+        return raw_attr