diff --git a/homeassistant/components/system_bridge/__init__.py b/homeassistant/components/system_bridge/__init__.py
index 05e607d56edb02..d1c79dc9a43ecc 100644
--- a/homeassistant/components/system_bridge/__init__.py
+++ b/homeassistant/components/system_bridge/__init__.py
@@ -20,6 +20,7 @@
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import (
     CONF_API_KEY,
+    CONF_COMMAND,
     CONF_HOST,
     CONF_PATH,
     CONF_PORT,
@@ -48,10 +49,20 @@
 CONF_TEXT = "text"
 
 SERVICE_OPEN_PATH = "open_path"
+SERVICE_POWER_COMMAND = "power_command"
 SERVICE_OPEN_URL = "open_url"
 SERVICE_SEND_KEYPRESS = "send_keypress"
 SERVICE_SEND_TEXT = "send_text"
 
+POWER_COMMAND_MAP = {
+    "hibernate": "power_hibernate",
+    "lock": "power_lock",
+    "logout": "power_logout",
+    "restart": "power_restart",
+    "shutdown": "power_shutdown",
+    "sleep": "power_sleep",
+}
+
 
 async def async_setup_entry(
     hass: HomeAssistant,
@@ -137,7 +148,7 @@ async def async_setup_entry(
     if hass.services.has_service(DOMAIN, SERVICE_OPEN_URL):
         return True
 
-    def valid_device(device: str):
+    def valid_device(device: str) -> str:
         """Check device is valid."""
         device_registry = dr.async_get(hass)
         device_entry = device_registry.async_get(device)
@@ -162,6 +173,17 @@ async def handle_open_path(call: ServiceCall) -> None:
             OpenPath(path=call.data[CONF_PATH])
         )
 
+    async def handle_power_command(call: ServiceCall) -> None:
+        """Handle the power command service call."""
+        _LOGGER.info("Power command: %s", call.data)
+        coordinator: SystemBridgeDataUpdateCoordinator = hass.data[DOMAIN][
+            call.data[CONF_BRIDGE]
+        ]
+        await getattr(
+            coordinator.websocket_client,
+            POWER_COMMAND_MAP[call.data[CONF_COMMAND]],
+        )()
+
     async def handle_open_url(call: ServiceCall) -> None:
         """Handle the open url service call."""
         _LOGGER.info("Open: %s", call.data)
@@ -200,6 +222,18 @@ async def handle_send_text(call: ServiceCall) -> None:
         ),
     )
 
+    hass.services.async_register(
+        DOMAIN,
+        SERVICE_POWER_COMMAND,
+        handle_power_command,
+        schema=vol.Schema(
+            {
+                vol.Required(CONF_BRIDGE): valid_device,
+                vol.Required(CONF_COMMAND): vol.In(POWER_COMMAND_MAP),
+            },
+        ),
+    )
+
     hass.services.async_register(
         DOMAIN,
         SERVICE_OPEN_URL,
diff --git a/homeassistant/components/system_bridge/services.yaml b/homeassistant/components/system_bridge/services.yaml
index 78d6e87f2184a4..49a7931789eb75 100644
--- a/homeassistant/components/system_bridge/services.yaml
+++ b/homeassistant/components/system_bridge/services.yaml
@@ -46,3 +46,22 @@ send_text:
       example: "Hello world"
       selector:
         text:
+power_command:
+  fields:
+    bridge:
+      required: true
+      selector:
+        device:
+          integration: system_bridge
+    command:
+      required: true
+      example: "sleep"
+      selector:
+        select:
+          options:
+            - "hibernate"
+            - "lock"
+            - "logout"
+            - "restart"
+            - "shutdown"
+            - "sleep"
diff --git a/homeassistant/components/system_bridge/strings.json b/homeassistant/components/system_bridge/strings.json
index c3e1f949152e69..fc38bd27037024 100644
--- a/homeassistant/components/system_bridge/strings.json
+++ b/homeassistant/components/system_bridge/strings.json
@@ -84,6 +84,20 @@
           "description": "Text to type."
         }
       }
+    },
+    "power_command": {
+      "name": "Power command",
+      "description": "Sends a power command to the system.",
+      "fields": {
+        "bridge": {
+          "name": "[%key:component::system_bridge::services::open_path::fields::bridge::name%]",
+          "description": "[%key:component::system_bridge::services::send_keypress::fields::bridge::description%]"
+        },
+        "command": {
+          "name": "Command",
+          "description": "Command to call."
+        }
+      }
     }
   }
 }