diff --git a/homeassistant/components/sun/__init__.py b/homeassistant/components/sun/__init__.py
index 4789490ef0d..b569e9df7bd 100644
--- a/homeassistant/components/sun/__init__.py
+++ b/homeassistant/components/sun/__init__.py
@@ -2,6 +2,7 @@
 from datetime import timedelta
 import logging
 
+from homeassistant.config_entries import SOURCE_IMPORT, ConfigEntry
 from homeassistant.const import (
     CONF_ELEVATION,
     EVENT_CORE_CONFIG_UPDATE,
@@ -18,12 +19,12 @@ from homeassistant.helpers.sun import (
 from homeassistant.helpers.typing import ConfigType
 from homeassistant.util import dt as dt_util
 
+from .const import DOMAIN
+
 # mypy: allow-untyped-calls, allow-untyped-defs, no-check-untyped-defs
 
 _LOGGER = logging.getLogger(__name__)
 
-DOMAIN = "sun"
-
 ENTITY_ID = "sun.sun"
 
 STATE_ABOVE_HORIZON = "above_horizon"
@@ -80,7 +81,27 @@ async def async_setup(hass: HomeAssistant, config: ConfigType) -> bool:
             "Elevation is now configured in Home Assistant core. "
             "See https://www.home-assistant.io/docs/configuration/basic/"
         )
-    Sun(hass)
+    hass.async_create_task(
+        hass.config_entries.flow.async_init(
+            DOMAIN,
+            context={"source": SOURCE_IMPORT},
+            data=config,
+        )
+    )
+    return True
+
+
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
+    """Set up from a config entry."""
+    hass.data[DOMAIN] = Sun(hass)
+    return True
+
+
+async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
+    """Unload a config entry."""
+    sun = hass.data.pop(DOMAIN)
+    sun.remove_listeners()
+    hass.states.async_remove(sun.entity_id)
     return True
 
 
@@ -100,6 +121,9 @@ class Sun(Entity):
         self.solar_elevation = self.solar_azimuth = None
         self.rising = self.phase = None
         self._next_change = None
+        self._config_listener = None
+        self._update_events_listener = None
+        self._update_sun_position_listener = None
 
         @callback
         def update_location(_event):
@@ -108,10 +132,24 @@ class Sun(Entity):
                 return
             self.location = location
             self.elevation = elevation
+            if self._update_events_listener:
+                self._update_events_listener()
             self.update_events()
 
         update_location(None)
-        self.hass.bus.async_listen(EVENT_CORE_CONFIG_UPDATE, update_location)
+        self._config_listener = self.hass.bus.async_listen(
+            EVENT_CORE_CONFIG_UPDATE, update_location
+        )
+
+    @callback
+    def remove_listeners(self):
+        """Remove listeners."""
+        if self._config_listener:
+            self._config_listener()
+        if self._update_events_listener:
+            self._update_events_listener()
+        if self._update_sun_position_listener:
+            self._update_sun_position_listener()
 
     @property
     def name(self):
@@ -211,10 +249,12 @@ class Sun(Entity):
         _LOGGER.debug(
             "sun phase_update@%s: phase=%s", utc_point_in_time.isoformat(), self.phase
         )
+        if self._update_sun_position_listener:
+            self._update_sun_position_listener()
         self.update_sun_position()
 
         # Set timer for the next solar event
-        event.async_track_point_in_utc_time(
+        self._update_events_listener = event.async_track_point_in_utc_time(
             self.hass, self.update_events, self._next_change
         )
         _LOGGER.debug("next time: %s", self._next_change.isoformat())
@@ -244,7 +284,8 @@ class Sun(Entity):
         # if the next update is within 1.25 of the next
         # position update just drop it
         if utc_point_in_time + delta * 1.25 > self._next_change:
+            self._update_sun_position_listener = None
             return
-        event.async_track_point_in_utc_time(
+        self._update_sun_position_listener = event.async_track_point_in_utc_time(
             self.hass, self.update_sun_position, utc_point_in_time + delta
         )
diff --git a/homeassistant/components/sun/config_flow.py b/homeassistant/components/sun/config_flow.py
new file mode 100644
index 00000000000..ae2e5a42efc
--- /dev/null
+++ b/homeassistant/components/sun/config_flow.py
@@ -0,0 +1,31 @@
+"""Config flow to configure the Sun integration."""
+from __future__ import annotations
+
+from typing import Any
+
+from homeassistant.config_entries import ConfigFlow
+from homeassistant.data_entry_flow import FlowResult
+
+from .const import DEFAULT_NAME, DOMAIN
+
+
+class SunConfigFlow(ConfigFlow, domain=DOMAIN):
+    """Config flow for Sun."""
+
+    VERSION = 1
+
+    async def async_step_user(
+        self, user_input: dict[str, Any] | None = None
+    ) -> FlowResult:
+        """Handle a flow initialized by the user."""
+        if self._async_current_entries():
+            return self.async_abort(reason="single_instance_allowed")
+
+        if user_input is not None:
+            return self.async_create_entry(title=DEFAULT_NAME, data={})
+
+        return self.async_show_form(step_id="user")
+
+    async def async_step_import(self, user_input: dict[str, Any]) -> FlowResult:
+        """Handle import from configuration.yaml."""
+        return await self.async_step_user(user_input)
diff --git a/homeassistant/components/sun/const.py b/homeassistant/components/sun/const.py
new file mode 100644
index 00000000000..f567c77e62a
--- /dev/null
+++ b/homeassistant/components/sun/const.py
@@ -0,0 +1,6 @@
+"""Constants for the Sun integration."""
+from typing import Final
+
+DOMAIN: Final = "sun"
+
+DEFAULT_NAME: Final = "Sun"
diff --git a/homeassistant/components/sun/manifest.json b/homeassistant/components/sun/manifest.json
index 93fb76629cc..dd13bf556fb 100644
--- a/homeassistant/components/sun/manifest.json
+++ b/homeassistant/components/sun/manifest.json
@@ -4,5 +4,6 @@
   "documentation": "https://www.home-assistant.io/integrations/sun",
   "codeowners": ["@Swamp-Ig"],
   "quality_scale": "internal",
-  "iot_class": "calculated"
+  "iot_class": "calculated",
+  "config_flow": true
 }
diff --git a/homeassistant/components/sun/strings.json b/homeassistant/components/sun/strings.json
index 980879b95cb..cdcaa416eda 100644
--- a/homeassistant/components/sun/strings.json
+++ b/homeassistant/components/sun/strings.json
@@ -1,5 +1,15 @@
 {
   "title": "Sun",
+  "config": {
+    "step": {
+      "user": {
+        "description": "[%key:common::config_flow::description::confirm_setup%]"
+      }
+    },
+    "abort": {
+      "single_instance_allowed": "[%key:common::config_flow::abort::single_instance_allowed%]"
+    }
+  },
   "state": {
     "_": {
       "above_horizon": "Above horizon",
diff --git a/homeassistant/generated/config_flows.py b/homeassistant/generated/config_flows.py
index d3c6e4816e0..a6591cc693c 100644
--- a/homeassistant/generated/config_flows.py
+++ b/homeassistant/generated/config_flows.py
@@ -323,6 +323,7 @@ FLOWS = [
     "steamist",
     "stookalert",
     "subaru",
+    "sun",
     "surepetcare",
     "switch_as_x",
     "switchbot",
diff --git a/tests/components/sun/test_config_flow.py b/tests/components/sun/test_config_flow.py
new file mode 100644
index 00000000000..1712e8f6fc9
--- /dev/null
+++ b/tests/components/sun/test_config_flow.py
@@ -0,0 +1,75 @@
+"""Tests for the Sun config flow."""
+from unittest.mock import patch
+
+import pytest
+
+from homeassistant.components.sun.const import DOMAIN
+from homeassistant.config_entries import SOURCE_IMPORT, SOURCE_USER
+from homeassistant.core import HomeAssistant
+from homeassistant.data_entry_flow import (
+    RESULT_TYPE_ABORT,
+    RESULT_TYPE_CREATE_ENTRY,
+    RESULT_TYPE_FORM,
+)
+
+from tests.common import MockConfigEntry
+
+
+async def test_full_user_flow(hass: HomeAssistant) -> None:
+    """Test the full user configuration flow."""
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN, context={"source": SOURCE_USER}
+    )
+
+    assert result.get("type") == RESULT_TYPE_FORM
+    assert result.get("step_id") == SOURCE_USER
+    assert "flow_id" in result
+
+    with patch(
+        "homeassistant.components.sun.async_setup_entry",
+        return_value=True,
+    ) as mock_setup_entry:
+        result = await hass.config_entries.flow.async_configure(
+            result["flow_id"],
+            user_input={},
+        )
+
+    assert result.get("type") == RESULT_TYPE_CREATE_ENTRY
+    assert result.get("title") == "Sun"
+    assert result.get("data") == {}
+    assert result.get("options") == {}
+    assert len(mock_setup_entry.mock_calls) == 1
+
+
+@pytest.mark.parametrize("source", [SOURCE_USER, SOURCE_IMPORT])
+async def test_single_instance_allowed(
+    hass: HomeAssistant,
+    source: str,
+) -> None:
+    """Test we abort if already setup."""
+    mock_config_entry = MockConfigEntry(domain=DOMAIN)
+
+    mock_config_entry.add_to_hass(hass)
+
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN, context={"source": source}
+    )
+
+    assert result.get("type") == RESULT_TYPE_ABORT
+    assert result.get("reason") == "single_instance_allowed"
+
+
+async def test_import_flow(
+    hass: HomeAssistant,
+) -> None:
+    """Test the import configuration flow."""
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN,
+        context={"source": SOURCE_IMPORT},
+        data={},
+    )
+
+    assert result.get("type") == RESULT_TYPE_CREATE_ENTRY
+    assert result.get("title") == "Sun"
+    assert result.get("data") == {}
+    assert result.get("options") == {}
diff --git a/tests/components/sun/test_init.py b/tests/components/sun/test_init.py
index 800d3ab82fd..85814d33d6c 100644
--- a/tests/components/sun/test_init.py
+++ b/tests/components/sun/test_init.py
@@ -10,6 +10,8 @@ import homeassistant.core as ha
 from homeassistant.setup import async_setup_component
 import homeassistant.util.dt as dt_util
 
+from tests.common import MockConfigEntry
+
 
 async def test_setting_rising(hass, legacy_patchable_time):
     """Test retrieving sun setting and rising."""
@@ -105,7 +107,7 @@ async def test_setting_rising(hass, legacy_patchable_time):
     )
 
 
-async def test_state_change(hass, legacy_patchable_time):
+async def test_state_change(hass, legacy_patchable_time, caplog):
     """Test if the state changes at next setting/rising."""
     now = datetime(2016, 6, 1, 8, 0, 0, tzinfo=dt_util.UTC)
     with patch("homeassistant.helpers.condition.dt_util.utcnow", return_value=now):
@@ -131,12 +133,34 @@ async def test_state_change(hass, legacy_patchable_time):
 
     assert sun.STATE_ABOVE_HORIZON == hass.states.get(sun.ENTITY_ID).state
 
+    # Update core configuration
     with patch("homeassistant.helpers.condition.dt_util.utcnow", return_value=now):
         await hass.config.async_update(longitude=hass.config.longitude + 90)
         await hass.async_block_till_done()
 
     assert sun.STATE_ABOVE_HORIZON == hass.states.get(sun.ENTITY_ID).state
 
+    # Test listeners are not duplicated after a core configuration change
+    test_time = dt_util.parse_datetime(
+        hass.states.get(sun.ENTITY_ID).attributes[sun.STATE_ATTR_NEXT_DUSK]
+    )
+    assert test_time is not None
+
+    patched_time = test_time + timedelta(seconds=5)
+    caplog.clear()
+    with patch(
+        "homeassistant.helpers.condition.dt_util.utcnow", return_value=patched_time
+    ):
+        hass.bus.async_fire(ha.EVENT_TIME_CHANGED, {ha.ATTR_NOW: patched_time})
+        await hass.async_block_till_done()
+        await hass.async_block_till_done()
+
+    assert caplog.text.count("sun phase_update") == 1
+    # Called once by time listener, once from Sun.update_events
+    assert caplog.text.count("sun position_update") == 2
+
+    assert sun.STATE_BELOW_HORIZON == hass.states.get(sun.ENTITY_ID).state
+
 
 async def test_norway_in_june(hass):
     """Test location in Norway where the sun doesn't set in summer."""
@@ -194,3 +218,42 @@ async def test_state_change_count(hass):
         await hass.async_block_till_done()
 
     assert len(events) < 721
+
+
+async def test_setup_and_remove_config_entry(
+    hass: ha.HomeAssistant, legacy_patchable_time
+) -> None:
+    """Test setting up and removing a config entry."""
+    # Setup the config entry
+    config_entry = MockConfigEntry(domain=sun.DOMAIN)
+    config_entry.add_to_hass(hass)
+    now = datetime(2016, 6, 1, 8, 0, 0, tzinfo=dt_util.UTC)
+    with patch("homeassistant.helpers.condition.dt_util.utcnow", return_value=now):
+        assert await hass.config_entries.async_setup(config_entry.entry_id)
+        await hass.async_block_till_done()
+
+    # Check the platform is setup correctly
+    state = hass.states.get("sun.sun")
+    assert state is not None
+
+    test_time = dt_util.parse_datetime(
+        hass.states.get(sun.ENTITY_ID).attributes[sun.STATE_ATTR_NEXT_RISING]
+    )
+    assert test_time is not None
+    assert sun.STATE_BELOW_HORIZON == hass.states.get(sun.ENTITY_ID).state
+
+    # Remove the config entry
+    assert await hass.config_entries.async_remove(config_entry.entry_id)
+    await hass.async_block_till_done()
+
+    # Check the state is removed, and does not reappear
+    assert hass.states.get("sun.sun") is None
+
+    patched_time = test_time + timedelta(seconds=5)
+    with patch(
+        "homeassistant.helpers.condition.dt_util.utcnow", return_value=patched_time
+    ):
+        hass.bus.async_fire(ha.EVENT_TIME_CHANGED, {ha.ATTR_NOW: patched_time})
+        await hass.async_block_till_done()
+
+    assert hass.states.get("sun.sun") is None