diff --git a/homeassistant/components/energy/__init__.py b/homeassistant/components/energy/__init__.py
index c856ffb1541..30a1bf8e877 100644
--- a/homeassistant/components/energy/__init__.py
+++ b/homeassistant/components/energy/__init__.py
@@ -14,6 +14,8 @@ from .data import async_get_manager
 async def is_configured(hass: HomeAssistant) -> bool:
     """Return a boolean to indicate if energy is configured."""
     manager = await async_get_manager(hass)
+    if manager.data is None:
+        return False
     return bool(manager.data != manager.default_preferences())
 
 
diff --git a/tests/components/energy/test_websocket_api.py b/tests/components/energy/test_websocket_api.py
index 92e6cf3a5b5..a14a8d0986e 100644
--- a/tests/components/energy/test_websocket_api.py
+++ b/tests/components/energy/test_websocket_api.py
@@ -30,6 +30,7 @@ async def test_get_preferences_no_data(hass, hass_ws_client) -> None:
 
 async def test_get_preferences_default(hass, hass_ws_client, hass_storage) -> None:
     """Test we get preferences."""
+    assert not await is_configured(hass)
     manager = await data.async_get_manager(hass)
     manager.data = data.EnergyManager.default_preferences()
     client = await hass_ws_client(hass)