diff --git a/homeassistant/components/watttime/__init__.py b/homeassistant/components/watttime/__init__.py
index d376dd40db6..6d23182c011 100644
--- a/homeassistant/components/watttime/__init__.py
+++ b/homeassistant/components/watttime/__init__.py
@@ -27,16 +27,13 @@ PLATFORMS: list[str] = ["sensor"]
 
 async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up WattTime from a config entry."""
-    hass.data.setdefault(DOMAIN, {DATA_COORDINATOR: {}})
+    hass.data.setdefault(DOMAIN, {entry.entry_id: {DATA_COORDINATOR: {}}})
 
     session = aiohttp_client.async_get_clientsession(hass)
 
     try:
         client = await Client.async_login(
-            entry.data[CONF_USERNAME],
-            entry.data[CONF_PASSWORD],
-            session=session,
-            logger=LOGGER,
+            entry.data[CONF_USERNAME], entry.data[CONF_PASSWORD], session=session
         )
     except WattTimeError as err:
         LOGGER.error("Error while authenticating with WattTime: %s", err)
@@ -62,7 +59,7 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     )
 
     await coordinator.async_config_entry_first_refresh()
-    hass.data[DOMAIN][DATA_COORDINATOR][entry.entry_id] = coordinator
+    hass.data[DOMAIN][entry.entry_id][DATA_COORDINATOR] = coordinator
 
     hass.config_entries.async_setup_platforms(entry, PLATFORMS)
 
@@ -73,6 +70,6 @@ async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Unload a config entry."""
     unload_ok = await hass.config_entries.async_unload_platforms(entry, PLATFORMS)
     if unload_ok:
-        hass.data[DOMAIN][DATA_COORDINATOR].pop(entry.entry_id)
+        hass.data[DOMAIN].pop(entry.entry_id)
 
     return unload_ok
diff --git a/homeassistant/components/watttime/config_flow.py b/homeassistant/components/watttime/config_flow.py
index a6c5dd422c2..6c523f64331 100644
--- a/homeassistant/components/watttime/config_flow.py
+++ b/homeassistant/components/watttime/config_flow.py
@@ -118,16 +118,14 @@ class ConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
                 step_id="location", data_schema=STEP_LOCATION_DATA_SCHEMA
             )
 
-        if user_input[CONF_LOCATION_TYPE] == LOCATION_TYPE_COORDINATES:
-            return self.async_show_form(
-                step_id="coordinates", data_schema=STEP_COORDINATES_DATA_SCHEMA
+        if user_input[CONF_LOCATION_TYPE] == LOCATION_TYPE_HOME:
+            return await self.async_step_coordinates(
+                {
+                    CONF_LATITUDE: self.hass.config.latitude,
+                    CONF_LONGITUDE: self.hass.config.longitude,
+                }
             )
-        return await self.async_step_coordinates(
-            {
-                CONF_LATITUDE: self.hass.config.latitude,
-                CONF_LONGITUDE: self.hass.config.longitude,
-            }
-        )
+        return await self.async_step_coordinates()
 
     async def async_step_user(
         self, user_input: dict[str, Any] | None = None
diff --git a/homeassistant/components/watttime/manifest.json b/homeassistant/components/watttime/manifest.json
index d4000b6f6b1..85a32bce331 100644
--- a/homeassistant/components/watttime/manifest.json
+++ b/homeassistant/components/watttime/manifest.json
@@ -6,10 +6,6 @@
   "requirements": [
     "aiowatttime==0.1.1"
   ],
-  "ssdp": [],
-  "zeroconf": [],
-  "homekit": {},
-  "dependencies": [],
   "codeowners": [
     "@bachya"
   ],
diff --git a/homeassistant/components/watttime/sensor.py b/homeassistant/components/watttime/sensor.py
index 4453044e0d2..6a6d05701c4 100644
--- a/homeassistant/components/watttime/sensor.py
+++ b/homeassistant/components/watttime/sensor.py
@@ -1,7 +1,6 @@
 """Support for WattTime sensors."""
 from __future__ import annotations
 
-from dataclasses import dataclass
 from typing import TYPE_CHECKING
 
 from homeassistant.components.sensor import (
@@ -36,40 +35,24 @@ ATTR_BALANCING_AUTHORITY = "balancing_authority"
 
 DEFAULT_ATTRIBUTION = "Pickup data provided by WattTime"
 
-SENSOR_TYPE_REALTIME_EMISSIONS_MOER = "realtime_emissions_moer"
-SENSOR_TYPE_REALTIME_EMISSIONS_PERCENT = "realtime_emissions_percent"
-
-
-@dataclass
-class RealtimeEmissionsSensorDescriptionMixin:
-    """Define an entity description mixin for realtime emissions sensors."""
-
-    data_key: str
-
-
-@dataclass
-class RealtimeEmissionsSensorEntityDescription(
-    SensorEntityDescription, RealtimeEmissionsSensorDescriptionMixin
-):
-    """Describe a realtime emissions sensor."""
+SENSOR_TYPE_REALTIME_EMISSIONS_MOER = "moer"
+SENSOR_TYPE_REALTIME_EMISSIONS_PERCENT = "percent"
 
 
 REALTIME_EMISSIONS_SENSOR_DESCRIPTIONS = (
-    RealtimeEmissionsSensorEntityDescription(
+    SensorEntityDescription(
         key=SENSOR_TYPE_REALTIME_EMISSIONS_MOER,
         name="Marginal Operating Emissions Rate",
         icon="mdi:blur",
         native_unit_of_measurement=f"{MASS_POUNDS} CO2/MWh",
         state_class=STATE_CLASS_MEASUREMENT,
-        data_key="moer",
     ),
-    RealtimeEmissionsSensorEntityDescription(
+    SensorEntityDescription(
         key=SENSOR_TYPE_REALTIME_EMISSIONS_PERCENT,
         name="Relative Marginal Emissions Intensity",
         icon="mdi:blur",
         native_unit_of_measurement=PERCENTAGE,
         state_class=STATE_CLASS_MEASUREMENT,
-        data_key="percent",
     ),
 )
 
@@ -78,12 +61,12 @@ async def async_setup_entry(
     hass: HomeAssistant, entry: ConfigEntry, async_add_entities: AddEntitiesCallback
 ) -> None:
     """Set up WattTime sensors based on a config entry."""
-    coordinator = hass.data[DOMAIN][DATA_COORDINATOR][entry.entry_id]
+    coordinator = hass.data[DOMAIN][entry.entry_id][DATA_COORDINATOR]
     async_add_entities(
         [
             RealtimeEmissionsSensor(coordinator, description)
             for description in REALTIME_EMISSIONS_SENSOR_DESCRIPTIONS
-            if description.data_key in coordinator.data
+            if description.key in coordinator.data
         ]
     )
 
@@ -91,12 +74,10 @@ async def async_setup_entry(
 class RealtimeEmissionsSensor(CoordinatorEntity, SensorEntity):
     """Define a realtime emissions sensor."""
 
-    entity_description: RealtimeEmissionsSensorEntityDescription
-
     def __init__(
         self,
         coordinator: DataUpdateCoordinator,
-        description: RealtimeEmissionsSensorEntityDescription,
+        description: SensorEntityDescription,
     ) -> None:
         """Initialize the sensor."""
         super().__init__(coordinator)
@@ -119,4 +100,4 @@ class RealtimeEmissionsSensor(CoordinatorEntity, SensorEntity):
     @property
     def native_value(self) -> StateType:
         """Return the value reported by the sensor."""
-        return self.coordinator.data[self.entity_description.data_key]
+        return self.coordinator.data[self.entity_description.key]