diff --git a/homeassistant/components/binary_sensor/netatmo.py b/homeassistant/components/binary_sensor/netatmo.py
index 4d8aaa7d0d9..dd7e0ee8d50 100644
--- a/homeassistant/components/binary_sensor/netatmo.py
+++ b/homeassistant/components/binary_sensor/netatmo.py
@@ -131,8 +131,6 @@ class NetatmoBinarySensor(BinarySensorDevice):
             self._name += ' / ' + module_name
         self._sensor_name = sensor
         self._name += ' ' + sensor
-        self._unique_id = data.camera_data.cameraByName(
-            camera=camera_name, home=home)['id']
         self._cameratype = camera_type
         self._state = None
 
@@ -141,11 +139,6 @@ class NetatmoBinarySensor(BinarySensorDevice):
         """Return the name of the Netatmo device and this sensor."""
         return self._name
 
-    @property
-    def unique_id(self):
-        """Return the unique ID for this sensor."""
-        return self._unique_id
-
     @property
     def device_class(self):
         """Return the class of this sensor, from DEVICE_CLASSES."""
diff --git a/homeassistant/components/camera/netatmo.py b/homeassistant/components/camera/netatmo.py
index 0a9a3fbdca4..48f2710ce2e 100644
--- a/homeassistant/components/camera/netatmo.py
+++ b/homeassistant/components/camera/netatmo.py
@@ -67,8 +67,6 @@ class NetatmoCamera(Camera):
         self._vpnurl, self._localurl = self._data.camera_data.cameraUrls(
             camera=camera_name
             )
-        self._unique_id = data.camera_data.cameraByName(
-            camera=camera_name, home=home)['id']
         self._cameratype = camera_type
 
     def camera_image(self):
@@ -112,8 +110,3 @@ class NetatmoCamera(Camera):
         elif self._cameratype == "NACamera":
             return "Welcome"
         return None
-
-    @property
-    def unique_id(self):
-        """Return the unique ID for this camera."""
-        return self._unique_id
diff --git a/homeassistant/components/sensor/netatmo.py b/homeassistant/components/sensor/netatmo.py
index c20e0a59408..8ec6de60fb9 100644
--- a/homeassistant/components/sensor/netatmo.py
+++ b/homeassistant/components/sensor/netatmo.py
@@ -113,18 +113,12 @@ class NetAtmoSensor(Entity):
         module_id = self.netatmo_data.\
             station_data.moduleByName(module=module_name)['_id']
         self.module_id = module_id[1]
-        self._unique_id = '{}-{}'.format(self.module_id, self.type)
 
     @property
     def name(self):
         """Return the name of the sensor."""
         return self._name
 
-    @property
-    def unique_id(self):
-        """Return the unique ID for this sensor."""
-        return self._unique_id
-
     @property
     def icon(self):
         """Icon to use in the frontend, if any."""
diff --git a/homeassistant/helpers/entity_platform.py b/homeassistant/helpers/entity_platform.py
index 5c1d437c7cf..9035973e015 100644
--- a/homeassistant/helpers/entity_platform.py
+++ b/homeassistant/helpers/entity_platform.py
@@ -240,8 +240,12 @@ class EntityPlatform(object):
             raise HomeAssistantError(
                 'Invalid entity id: {}'.format(entity.entity_id))
         elif entity.entity_id in component_entities:
+            msg = 'Entity id already exists: {}'.format(entity.entity_id)
+            if entity.unique_id is not None:
+                msg += '. Platform {} does not generate unique IDs'.format(
+                    self.platform_name)
             raise HomeAssistantError(
-                'Entity id already exists: {}'.format(entity.entity_id))
+                msg)
 
         self.entities[entity.entity_id] = entity
         component_entities.add(entity.entity_id)