diff --git a/homeassistant/components/solarlog/sensor.py b/homeassistant/components/solarlog/sensor.py
index 91e18da1cb2..bb5cf043121 100644
--- a/homeassistant/components/solarlog/sensor.py
+++ b/homeassistant/components/solarlog/sensor.py
@@ -87,6 +87,7 @@ SOLARLOG_SENSOR_TYPES: tuple[SolarLogCoordinatorSensorEntityDescription, ...] =
         native_unit_of_measurement=UnitOfEnergy.WATT_HOUR,
         suggested_unit_of_measurement=UnitOfEnergy.KILO_WATT_HOUR,
         device_class=SensorDeviceClass.ENERGY,
+        state_class=SensorStateClass.TOTAL_INCREASING,
         suggested_display_precision=3,
         value_fn=lambda data: data.yield_day,
     ),
@@ -105,6 +106,7 @@ SOLARLOG_SENSOR_TYPES: tuple[SolarLogCoordinatorSensorEntityDescription, ...] =
         native_unit_of_measurement=UnitOfEnergy.WATT_HOUR,
         suggested_unit_of_measurement=UnitOfEnergy.KILO_WATT_HOUR,
         device_class=SensorDeviceClass.ENERGY,
+        state_class=SensorStateClass.TOTAL_INCREASING,
         suggested_display_precision=3,
         value_fn=lambda data: data.yield_month,
     ),
@@ -114,6 +116,7 @@ SOLARLOG_SENSOR_TYPES: tuple[SolarLogCoordinatorSensorEntityDescription, ...] =
         native_unit_of_measurement=UnitOfEnergy.WATT_HOUR,
         suggested_unit_of_measurement=UnitOfEnergy.KILO_WATT_HOUR,
         device_class=SensorDeviceClass.ENERGY,
+        state_class=SensorStateClass.TOTAL_INCREASING,
         value_fn=lambda data: data.yield_year,
     ),
     SolarLogCoordinatorSensorEntityDescription(
@@ -140,6 +143,7 @@ SOLARLOG_SENSOR_TYPES: tuple[SolarLogCoordinatorSensorEntityDescription, ...] =
         native_unit_of_measurement=UnitOfEnergy.WATT_HOUR,
         suggested_unit_of_measurement=UnitOfEnergy.KILO_WATT_HOUR,
         device_class=SensorDeviceClass.ENERGY,
+        state_class=SensorStateClass.TOTAL_INCREASING,
         suggested_display_precision=3,
         value_fn=lambda data: data.consumption_day,
     ),
@@ -158,6 +162,7 @@ SOLARLOG_SENSOR_TYPES: tuple[SolarLogCoordinatorSensorEntityDescription, ...] =
         native_unit_of_measurement=UnitOfEnergy.WATT_HOUR,
         suggested_unit_of_measurement=UnitOfEnergy.KILO_WATT_HOUR,
         device_class=SensorDeviceClass.ENERGY,
+        state_class=SensorStateClass.TOTAL_INCREASING,
         suggested_display_precision=3,
         value_fn=lambda data: data.consumption_month,
     ),
@@ -167,6 +172,7 @@ SOLARLOG_SENSOR_TYPES: tuple[SolarLogCoordinatorSensorEntityDescription, ...] =
         native_unit_of_measurement=UnitOfEnergy.WATT_HOUR,
         suggested_unit_of_measurement=UnitOfEnergy.KILO_WATT_HOUR,
         device_class=SensorDeviceClass.ENERGY,
+        state_class=SensorStateClass.TOTAL_INCREASING,
         suggested_display_precision=3,
         value_fn=lambda data: data.consumption_year,
     ),
@@ -193,6 +199,7 @@ SOLARLOG_SENSOR_TYPES: tuple[SolarLogCoordinatorSensorEntityDescription, ...] =
         translation_key="total_power",
         native_unit_of_measurement=UnitOfPower.WATT,
         device_class=SensorDeviceClass.POWER,
+        state_class=SensorStateClass.MEASUREMENT,
         value_fn=lambda data: data.total_power,
     ),
     SolarLogCoordinatorSensorEntityDescription(
@@ -255,6 +262,7 @@ INVERTER_SENSOR_TYPES: tuple[SolarLogInverterSensorEntityDescription, ...] = (
         native_unit_of_measurement=UnitOfEnergy.WATT_HOUR,
         suggested_unit_of_measurement=UnitOfEnergy.KILO_WATT_HOUR,
         device_class=SensorDeviceClass.ENERGY,
+        state_class=SensorStateClass.TOTAL_INCREASING,
         suggested_display_precision=3,
         value_fn=(
             lambda inverter: None
diff --git a/tests/components/solarlog/snapshots/test_sensor.ambr b/tests/components/solarlog/snapshots/test_sensor.ambr
index 38356a00de7..32be560fc62 100644
--- a/tests/components/solarlog/snapshots/test_sensor.ambr
+++ b/tests/components/solarlog/snapshots/test_sensor.ambr
@@ -4,7 +4,9 @@
     'aliases': set({
     }),
     'area_id': None,
-    'capabilities': None,
+    'capabilities': dict({
+      'state_class': <SensorStateClass.TOTAL_INCREASING: 'total_increasing'>,
+    }),
     'config_entry_id': <ANY>,
     'device_class': None,
     'device_id': <ANY>,
@@ -43,6 +45,7 @@
     'attributes': ReadOnlyDict({
       'device_class': 'energy',
       'friendly_name': 'Inverter 1 Consumption year',
+      'state_class': <SensorStateClass.TOTAL_INCREASING: 'total_increasing'>,
       'unit_of_measurement': <UnitOfEnergy.KILO_WATT_HOUR: 'kWh'>,
     }),
     'context': <ANY>,
@@ -109,7 +112,9 @@
     'aliases': set({
     }),
     'area_id': None,
-    'capabilities': None,
+    'capabilities': dict({
+      'state_class': <SensorStateClass.TOTAL_INCREASING: 'total_increasing'>,
+    }),
     'config_entry_id': <ANY>,
     'device_class': None,
     'device_id': <ANY>,
@@ -148,6 +153,7 @@
     'attributes': ReadOnlyDict({
       'device_class': 'energy',
       'friendly_name': 'Inverter 2 Consumption year',
+      'state_class': <SensorStateClass.TOTAL_INCREASING: 'total_increasing'>,
       'unit_of_measurement': <UnitOfEnergy.KILO_WATT_HOUR: 'kWh'>,
     }),
     'context': <ANY>,
@@ -370,7 +376,9 @@
     'aliases': set({
     }),
     'area_id': None,
-    'capabilities': None,
+    'capabilities': dict({
+      'state_class': <SensorStateClass.TOTAL_INCREASING: 'total_increasing'>,
+    }),
     'config_entry_id': <ANY>,
     'device_class': None,
     'device_id': <ANY>,
@@ -409,6 +417,7 @@
     'attributes': ReadOnlyDict({
       'device_class': 'energy',
       'friendly_name': 'solarlog Consumption day',
+      'state_class': <SensorStateClass.TOTAL_INCREASING: 'total_increasing'>,
       'unit_of_measurement': <UnitOfEnergy.KILO_WATT_HOUR: 'kWh'>,
     }),
     'context': <ANY>,
@@ -424,7 +433,9 @@
     'aliases': set({
     }),
     'area_id': None,
-    'capabilities': None,
+    'capabilities': dict({
+      'state_class': <SensorStateClass.TOTAL_INCREASING: 'total_increasing'>,
+    }),
     'config_entry_id': <ANY>,
     'device_class': None,
     'device_id': <ANY>,
@@ -463,6 +474,7 @@
     'attributes': ReadOnlyDict({
       'device_class': 'energy',
       'friendly_name': 'solarlog Consumption month',
+      'state_class': <SensorStateClass.TOTAL_INCREASING: 'total_increasing'>,
       'unit_of_measurement': <UnitOfEnergy.KILO_WATT_HOUR: 'kWh'>,
     }),
     'context': <ANY>,
@@ -535,7 +547,9 @@
     'aliases': set({
     }),
     'area_id': None,
-    'capabilities': None,
+    'capabilities': dict({
+      'state_class': <SensorStateClass.TOTAL_INCREASING: 'total_increasing'>,
+    }),
     'config_entry_id': <ANY>,
     'device_class': None,
     'device_id': <ANY>,
@@ -574,6 +588,7 @@
     'attributes': ReadOnlyDict({
       'device_class': 'energy',
       'friendly_name': 'solarlog Consumption year',
+      'state_class': <SensorStateClass.TOTAL_INCREASING: 'total_increasing'>,
       'unit_of_measurement': <UnitOfEnergy.KILO_WATT_HOUR: 'kWh'>,
     }),
     'context': <ANY>,
@@ -697,7 +712,9 @@
     'aliases': set({
     }),
     'area_id': None,
-    'capabilities': None,
+    'capabilities': dict({
+      'state_class': <SensorStateClass.MEASUREMENT: 'measurement'>,
+    }),
     'config_entry_id': <ANY>,
     'device_class': None,
     'device_id': <ANY>,
@@ -730,6 +747,7 @@
     'attributes': ReadOnlyDict({
       'device_class': 'power',
       'friendly_name': 'solarlog Installed peak power',
+      'state_class': <SensorStateClass.MEASUREMENT: 'measurement'>,
       'unit_of_measurement': <UnitOfPower.WATT: 'W'>,
     }),
     'context': <ANY>,
@@ -1152,7 +1170,9 @@
     'aliases': set({
     }),
     'area_id': None,
-    'capabilities': None,
+    'capabilities': dict({
+      'state_class': <SensorStateClass.TOTAL_INCREASING: 'total_increasing'>,
+    }),
     'config_entry_id': <ANY>,
     'device_class': None,
     'device_id': <ANY>,
@@ -1191,6 +1211,7 @@
     'attributes': ReadOnlyDict({
       'device_class': 'energy',
       'friendly_name': 'solarlog Yield day',
+      'state_class': <SensorStateClass.TOTAL_INCREASING: 'total_increasing'>,
       'unit_of_measurement': <UnitOfEnergy.KILO_WATT_HOUR: 'kWh'>,
     }),
     'context': <ANY>,
@@ -1206,7 +1227,9 @@
     'aliases': set({
     }),
     'area_id': None,
-    'capabilities': None,
+    'capabilities': dict({
+      'state_class': <SensorStateClass.TOTAL_INCREASING: 'total_increasing'>,
+    }),
     'config_entry_id': <ANY>,
     'device_class': None,
     'device_id': <ANY>,
@@ -1245,6 +1268,7 @@
     'attributes': ReadOnlyDict({
       'device_class': 'energy',
       'friendly_name': 'solarlog Yield month',
+      'state_class': <SensorStateClass.TOTAL_INCREASING: 'total_increasing'>,
       'unit_of_measurement': <UnitOfEnergy.KILO_WATT_HOUR: 'kWh'>,
     }),
     'context': <ANY>,
@@ -1317,7 +1341,9 @@
     'aliases': set({
     }),
     'area_id': None,
-    'capabilities': None,
+    'capabilities': dict({
+      'state_class': <SensorStateClass.TOTAL_INCREASING: 'total_increasing'>,
+    }),
     'config_entry_id': <ANY>,
     'device_class': None,
     'device_id': <ANY>,
@@ -1353,6 +1379,7 @@
     'attributes': ReadOnlyDict({
       'device_class': 'energy',
       'friendly_name': 'solarlog Yield year',
+      'state_class': <SensorStateClass.TOTAL_INCREASING: 'total_increasing'>,
       'unit_of_measurement': <UnitOfEnergy.KILO_WATT_HOUR: 'kWh'>,
     }),
     'context': <ANY>,