feat(sensors)!: rename price_trend_Xh → price_outlook_Xh, add price_trajectory_Xh

Renamed 8 sensors to clarify what they actually measure, and added 7 new
sensors for a different (and often more useful) calculation.

--- WHY THE RENAME ---

The old name "price_trend_Xh" implied the sensor shows where prices are
heading. It doesn't — it compares CURRENT price vs the FUTURE WINDOW AVERAGE.
At a price minimum, it shows "strongly_falling" (because the cheap minimum
pulls the average below your current high price), which is the opposite of
intuitive. The name "price_outlook_Xh" correctly conveys: "is now cheaper
or more expensive than the next Nh on average?"

--- NEW: price_trajectory_Xh ---

These sensors compare FIRST HALF vs SECOND HALF of the window, revealing
actual price direction within the window:

  price_trajectory_2h: avg(hour 1) vs avg(hour 2)
  price_trajectory_3h: avg(first 1.5h) vs avg(second 1.5h)
  price_trajectory_4h: avg(first 2h) vs avg(second 2h)
  price_trajectory_5h: avg(first 2.5h) vs avg(second 2.5h)
  price_trajectory_6h: avg(first 3h) vs avg(second 3h)
  price_trajectory_8h: avg(first 4h) vs avg(second 4h)
  price_trajectory_12h: avg(first 6h) vs avg(second 6h)

The key use case: at a price minimum, price_outlook_Xh shows "strongly_falling"
but price_trajectory_Xh shows "rising" — correctly revealing the upcoming
reversal. "outlook: falling + trajectory: rising" = you're AT the minimum.

--- IMPLEMENTATION ---

sensor/calculators/trend.py:
  - get_price_outlook_value() (was: get_price_trend_value())
  - New: get_price_trajectory_value(*, hours: int)
  - New: _calculate_first_half_average(hours, next_interval_start)
  - New: get_trajectory_attributes() → first_half_avg, second_half_avg, half_diff_%
  - clear_trend_cache() also resets _trajectory_attributes

sensor/definitions.py:
  - 8 SensorEntityDescription entries: key/translation_key price_trend_Xh → price_outlook_Xh
  - New PRICE_TRAJECTORY_SENSORS tuple (2h–5h enabled by default, 6h/8h/12h disabled)

sensor/value_getters.py:
  - 8 lambda entries renamed
  - 7 new trajectory lambda entries added

sensor/attributes/trend.py:
  - startswith("price_trend_") → startswith("price_outlook_")
  - New elif branch routing price_trajectory_* to cached trajectory_attributes

sensor/core.py:
  - startswith checks updated for both prefix families
  - cached_data dict extended with "trajectory_attributes"

coordinator/constants.py:
  - TIME_SENSITIVE_ENTITY_KEYS: 8 renamed + 7 new trajectory keys added

config_flow_handlers/entity_check.py:
  - volatility + price_trend affected-entity lists: 8 renamed + 7 new

BREAKING CHANGE: Sensors price_trend_1h, price_trend_2h, price_trend_3h,
price_trend_4h, price_trend_5h, price_trend_6h, price_trend_8h,
price_trend_12h have been removed without a deprecation period.

Migration:
  Replace price_trend_Xh → price_outlook_Xh everywhere (automations,
  dashboards, templates). Behavior is identical — only the entity name
  changed. If you want to detect actual price direction within the window
  (e.g. "are prices rising or falling right now?"), use the new
  price_trajectory_Xh sensors instead.

Impact: Users must update automations and dashboards. Entity IDs change from
sensor.<home>_price_trend_Xh to sensor.<home>_price_outlook_Xh. New
price_trajectory_Xh sensors provide complementary direction information.

custom_components/tibber_prices/config_flow_handlers/entity_check.py

@@ -69,14 +69,21 @@ STEP_TO_SENSOR_KEYS: dict[str, list[str]] = {
         # Also affects trend sensors (adaptive thresholds)
         "current_price_trend",
         "next_price_trend_change",
-        "price_trend_1h",
+        "price_outlook_1h",
-        "price_trend_2h",
+        "price_outlook_2h",
-        "price_trend_3h",
+        "price_outlook_3h",
-        "price_trend_4h",
+        "price_outlook_4h",
-        "price_trend_5h",
+        "price_outlook_5h",
-        "price_trend_6h",
+        "price_outlook_6h",
-        "price_trend_8h",
+        "price_outlook_8h",
-        "price_trend_12h",
+        "price_outlook_12h",
+        "price_trajectory_2h",
+        "price_trajectory_3h",
+        "price_trajectory_4h",
+        "price_trajectory_5h",
+        "price_trajectory_6h",
+        "price_trajectory_8h",
+        "price_trajectory_12h",
     ],
     # Best Price settings affect best price binary sensor and timing sensors
     "best_price": [
@@ -106,14 +113,21 @@ STEP_TO_SENSOR_KEYS: dict[str, list[str]] = {
     "price_trend": [
         "current_price_trend",
         "next_price_trend_change",
-        "price_trend_1h",
+        "price_outlook_1h",
-        "price_trend_2h",
+        "price_outlook_2h",
-        "price_trend_3h",
+        "price_outlook_3h",
-        "price_trend_4h",
+        "price_outlook_4h",
-        "price_trend_5h",
+        "price_outlook_5h",
-        "price_trend_6h",
+        "price_outlook_6h",
-        "price_trend_8h",
+        "price_outlook_8h",
-        "price_trend_12h",
+        "price_outlook_12h",
+        "price_trajectory_2h",
+        "price_trajectory_3h",
+        "price_trajectory_4h",
+        "price_trajectory_5h",
+        "price_trajectory_6h",
+        "price_trajectory_8h",
+        "price_trajectory_12h",
     ],
 }
 

custom_components/tibber_prices/coordinator/constants.py

@@ -62,14 +62,22 @@ TIME_SENSITIVE_ENTITY_KEYS = frozenset(
         "current_price_trend",
         "next_price_trend_change",
         # Price trend sensors
-        "price_trend_1h",
+        "price_outlook_1h",
-        "price_trend_2h",
+        "price_outlook_2h",
-        "price_trend_3h",
+        "price_outlook_3h",
-        "price_trend_4h",
+        "price_outlook_4h",
-        "price_trend_5h",
+        "price_outlook_5h",
-        "price_trend_6h",
+        "price_outlook_6h",
-        "price_trend_8h",
+        "price_outlook_8h",
-        "price_trend_12h",
+        "price_outlook_12h",
+        # Price trajectory sensors (first-half vs second-half window comparison)
+        "price_trajectory_2h",
+        "price_trajectory_3h",
+        "price_trajectory_4h",
+        "price_trajectory_5h",
+        "price_trajectory_6h",
+        "price_trajectory_8h",
+        "price_trajectory_12h",
         # Trailing/leading 24h calculations (based on current interval)
         "trailing_price_average",
         "leading_price_average",

custom_components/tibber_prices/sensor/attributes/trend.py

@@ -28,8 +28,10 @@ def _add_timing_or_volatility_attributes(
 
 def _add_cached_trend_attributes(attributes: dict, key: str, cached_data: dict) -> None:
     """Add cached trend attributes if available."""
-    if key.startswith("price_trend_") and cached_data.get("trend_attributes"):
+    if key.startswith("price_outlook_") and cached_data.get("trend_attributes"):
         attributes.update(cached_data["trend_attributes"])
+    elif key.startswith("price_trajectory_") and cached_data.get("trajectory_attributes"):
+        attributes.update(cached_data["trajectory_attributes"])
     elif key == "current_price_trend" and cached_data.get("current_trend_attributes"):
         # Add cached attributes (timestamp already set by platform)
         attributes.update(cached_data["current_trend_attributes"])

custom_components/tibber_prices/sensor/calculators/trend.py

@@ -2,13 +2,14 @@
 Trend calculator for price trend analysis sensors.
 
 This module handles all trend-related calculations:
-- Simple price trends (1h-12h future comparison)
+- Price outlook (1h-12h): Current price vs average of the next N hours
+- Price trajectory (2h-12h): First-half vs second-half average in the window (shows turning points)
 - Current trend (pure future-based 3h outlook with volatility adjustment)
 - Next trend change prediction (with configurable N-interval hysteresis, default 3)
 - Trend duration tracking (lightweight price direction scan with noise tolerance)
 
 Caching strategy:
-- Simple trends: Cached per sensor update to ensure consistency between state and attributes
+- Outlook/Trajectory: Cached per sensor update to ensure consistency between state and attributes
 - Current trend + next change: Cached centrally for 60s to avoid duplicate calculations
 """
 
@@ -31,7 +32,7 @@ if TYPE_CHECKING:
     )
 
 # Constants
-MIN_HOURS_FOR_LATER_HALF = 3  # Minimum hours needed to calculate later half average
+MIN_HOURS_FOR_LATER_HALF = 1  # Minimum hours needed to calculate half-window averages (activates at 2h+)
 
 
 class TibberPricesTrendCalculator(TibberPricesBaseCalculator):
@@ -39,9 +40,10 @@ class TibberPricesTrendCalculator(TibberPricesBaseCalculator):
     Calculator for price trend sensors.
 
     Handles three types of trend analysis:
-    1. Simple trends (price_trend_1h-12h): Current vs next N hours average
+    1. Outlook sensors (price_outlook_1h-12h): Current vs next N hours average
-    2. Current trend (current_price_trend): Pure future-based 3h outlook with volatility adjustment
+    2. Trajectory sensors (price_trajectory_2h-12h): First half vs second half of window
-    3. Next change (next_price_trend_change): Scan forward with configurable N-interval hysteresis (default 3)
+    3. Current trend (current_price_trend): Pure future-based 3h outlook with volatility adjustment
+    4. Next change (next_price_trend_change): Scan forward with configurable N-interval hysteresis (default 3)
 
     Caching:
     - Simple trends: Per-sensor cache (_cached_trend_value, _trend_attributes)
@@ -62,9 +64,10 @@ class TibberPricesTrendCalculator(TibberPricesBaseCalculator):
     def __init__(self, coordinator: "TibberPricesDataUpdateCoordinator") -> None:
         """Initialize trend calculator with caching state."""
         super().__init__(coordinator)
-        # Per-sensor trend caches (for price_trend_Nh sensors)
+        # Per-sensor caches (for price_outlook_Xh and price_trajectory_Xh sensors)
         self._cached_trend_value: str | None = None
         self._trend_attributes: dict[str, Any] = {}
+        self._trajectory_attributes: dict[str, Any] = {}
         # Centralized trend calculation cache (for current_price_trend + next_price_trend_change)
         self._trend_calculation_cache: dict[str, Any] | None = None
         self._trend_calculation_timestamp: datetime | None = None
@@ -72,11 +75,12 @@ class TibberPricesTrendCalculator(TibberPricesBaseCalculator):
         self._current_trend_attributes: dict[str, Any] | None = None
         self._trend_change_attributes: dict[str, Any] | None = None
 
-    def get_price_trend_value(self, *, hours: int) -> str | None:
+    def get_price_outlook_value(self, *, hours: int) -> str | None:
         """
-        Calculate price trend comparing current interval vs next N hours average.
+        Calculate price outlook comparing current interval vs average of the next N hours.
 
-        This is for simple trend sensors (price_trend_1h through price_trend_12h).
+        This is for price_outlook_Xh sensors. Answers: "Is the average of the next Xh
+        cheaper or more expensive than right now?"
         Results are cached per sensor to ensure consistency between state and attributes.
 
         Args:
@@ -284,10 +288,131 @@ class TibberPricesTrendCalculator(TibberPricesBaseCalculator):
 
         return trend_info["minutes_until_change"]
 
+    def get_price_trajectory_value(self, *, hours: int) -> str | None:
+        """
+        Calculate price trajectory by comparing first-half vs second-half window average.
+
+        This is for price_trajectory_Xh sensors. Answers: "Are prices rising or falling
+        within the next Xh window?" — revealing turning points that price_outlook_Xh misses.
+
+        Example at a price minimum (12:00):
+        - price_outlook_4h: "strongly_falling" (Ø next 4h is below current high)
+        - price_trajectory_4h: "rising" (second half is more expensive than first half)
+        → Combined signal: act now, reversal is coming within the window.
+
+        Args:
+            hours: Number of hours in the window (must be >= 2)
+
+        Returns:
+            Trend state: "rising" | "falling" | "stable", or None if unavailable
+
+        """
+        if hours < 2:  # noqa: PLR2004
+            return None
+
+        if not self.has_data():
+            return None
+
+        current_interval = self.coordinator.get_current_interval()
+        if not current_interval or "total" not in current_interval:
+            return None
+
+        current_interval_price = float(current_interval["total"])
+        time = self.coordinator.time
+        current_starts_at = time.get_interval_time(current_interval)
+        if current_starts_at is None:
+            return None
+
+        next_interval_start = time.get_next_interval_start()
+
+        # Get first-half and second-half averages
+        first_half_avg = self._calculate_first_half_average(hours, next_interval_start)
+        second_half_avg = self._calculate_later_half_average(hours, next_interval_start)
+
+        if first_half_avg is None or second_half_avg is None:
+            return None
+
+        # Get configured thresholds (same as outlook sensors for consistency)
+        threshold_rising = self.config.get("price_trend_threshold_rising", 3.0)
+        threshold_falling = self.config.get("price_trend_threshold_falling", -3.0)
+        threshold_strongly_rising = self.config.get("price_trend_threshold_strongly_rising", 9.0)
+        threshold_strongly_falling = self.config.get("price_trend_threshold_strongly_falling", -9.0)
+        volatility_threshold_moderate = self.config.get("volatility_threshold_moderate", 15.0)
+        volatility_threshold_high = self.config.get("volatility_threshold_high", 30.0)
+        min_abs_diff = self.config.get("price_trend_min_price_change", 0.005)
+        min_abs_diff_strongly = self.config.get("price_trend_min_price_change_strongly", 0.015)
+
+        # Build volatility window from full outlook period
+        today_prices = self.intervals_today
+        tomorrow_prices = self.intervals_tomorrow
+        all_intervals = today_prices + tomorrow_prices
+        lookahead_intervals = self.coordinator.time.minutes_to_intervals(hours * 60)
+
+        current_idx = None
+        for idx, interval in enumerate(all_intervals):
+            if time.get_interval_time(interval) == current_starts_at:
+                current_idx = idx
+                break
+
+        if current_idx is not None:
+            volatility_window = all_intervals[current_idx : current_idx + lookahead_intervals]
+        else:
+            volatility_window = all_intervals[:lookahead_intervals]
+
+        # Compare first half vs second half: does price rise or fall across the window?
+        trajectory_state, diff_pct, trend_value, vol_factor = calculate_price_trend(
+            first_half_avg,
+            second_half_avg,
+            threshold_rising=threshold_rising,
+            threshold_falling=threshold_falling,
+            threshold_strongly_rising=threshold_strongly_rising,
+            threshold_strongly_falling=threshold_strongly_falling,
+            min_abs_diff=min_abs_diff,
+            min_abs_diff_strongly=min_abs_diff_strongly,
+            volatility_adjustment=True,
+            lookahead_intervals=lookahead_intervals,
+            all_intervals=volatility_window,
+            volatility_threshold_moderate=volatility_threshold_moderate,
+            volatility_threshold_high=volatility_threshold_high,
+        )
+
+        factor = get_display_unit_factor(self.config_entry)
+        time_obj = self.coordinator.time
+        total_intervals = time_obj.minutes_to_intervals(hours * 60)
+        first_half_count = total_intervals // 2
+        second_half_count = total_intervals - first_half_count
+
+        self._trajectory_attributes = {
+            "timestamp": next_interval_start,
+            "trend_value": trend_value,
+            f"trajectory_{hours}h_%": round(diff_pct, 1),
+            f"first_half_{hours}h_avg": round(first_half_avg * factor, 2),
+            f"second_half_{hours}h_avg": round(second_half_avg * factor, 2),
+            f"first_half_{hours}h_diff_from_current_%": round(
+                ((first_half_avg - current_interval_price) / abs(current_interval_price)) * 100, 1
+            )
+            if current_interval_price != 0
+            else None,
+            f"second_half_{hours}h_diff_from_current_%": round(
+                ((second_half_avg - current_interval_price) / abs(current_interval_price)) * 100, 1
+            )
+            if current_interval_price != 0
+            else None,
+            "first_half_interval_count": first_half_count,
+            "second_half_interval_count": second_half_count,
+            "volatility_factor": vol_factor,
+        }
+
+        return trajectory_state
+
     def get_trend_attributes(self) -> dict[str, Any]:
-        """Get cached trend attributes for simple trend sensors (price_trend_Nh)."""
+        """Get cached outlook attributes for price_outlook_Xh sensors."""
         return self._trend_attributes
 
+    def get_trajectory_attributes(self) -> dict[str, Any]:
+        """Get cached trajectory attributes for price_trajectory_Xh sensors."""
+        return self._trajectory_attributes
+
     def get_current_trend_attributes(self) -> dict[str, Any] | None:
         """Get cached attributes for current_price_trend sensor."""
         return self._current_trend_attributes
@@ -297,9 +422,10 @@ class TibberPricesTrendCalculator(TibberPricesBaseCalculator):
         return self._trend_change_attributes
 
     def clear_trend_cache(self) -> None:
-        """Clear simple trend cache (called on coordinator update)."""
+        """Clear outlook/trajectory trend cache (called on coordinator update)."""
         self._cached_trend_value = None
         self._trend_attributes = {}
+        self._trajectory_attributes = {}
 
     def clear_calculation_cache(self) -> None:
         """Clear centralized trend calculation cache (called on coordinator update)."""
@@ -310,6 +436,54 @@ class TibberPricesTrendCalculator(TibberPricesBaseCalculator):
     # PRIVATE HELPER METHODS
     # ========================================================================
 
+    def _calculate_first_half_average(self, hours: int, next_interval_start: datetime) -> float | None:
+        """
+        Calculate average price for the first half of the future time window.
+
+        This is the counterpart to _calculate_later_half_average and together they
+        enable trajectory calculation (first half vs second half comparison).
+
+        Args:
+            hours: Total hours in the prediction window
+            next_interval_start: Start timestamp of the next interval
+
+        Returns:
+            Average price for the first half intervals, or None if insufficient data
+
+        """
+        if not self.has_data():
+            return None
+
+        today_prices = self.intervals_today
+        tomorrow_prices = self.intervals_tomorrow
+        all_prices = today_prices + tomorrow_prices
+
+        if not all_prices:
+            return None
+
+        time = self.coordinator.time
+        total_intervals = time.minutes_to_intervals(hours * 60)
+        first_half_intervals = total_intervals // 2
+        interval_duration = time.get_interval_duration()
+        first_half_end = next_interval_start + (interval_duration * first_half_intervals)
+
+        # Collect prices in the first half: [next_interval_start, first_half_end)
+        first_prices = []
+        for price_data in all_prices:
+            starts_at = time.get_interval_time(price_data)
+            if starts_at is None:
+                continue
+
+            if next_interval_start <= starts_at < first_half_end:
+                price = price_data.get("total")
+                if price is not None:
+                    first_prices.append(float(price))
+
+        if first_prices:
+            return calculate_mean(first_prices)
+
+        return None
+
     def _calculate_later_half_average(self, hours: int, next_interval_start: datetime) -> float | None:
         """
         Calculate average price for the later half of the future time window.

custom_components/tibber_prices/sensor/core.py

@@ -326,7 +326,7 @@ class TibberPricesSensor(TibberPricesEntity, RestoreSensor):
         self.coordinator.time = time_service
 
         # Clear cached trend values on time-sensitive updates
-        if self.entity_description.key.startswith("price_trend_"):
+        if self.entity_description.key.startswith(("price_outlook_", "price_trajectory_")):
             self._trend_calculator.clear_trend_cache()
         # Clear trend calculation cache for trend sensors
         elif self.entity_description.key in (
@@ -366,7 +366,7 @@ class TibberPricesSensor(TibberPricesEntity, RestoreSensor):
     def _handle_coordinator_update(self) -> None:
         """Handle updated data from the coordinator."""
         # Clear cached trend values when coordinator data changes
-        if self.entity_description.key.startswith("price_trend_"):
+        if self.entity_description.key.startswith(("price_outlook_", "price_trajectory_")):
             self._trend_calculator.clear_trend_cache()
             # Also clear calculation cache (e.g., when threshold config changes)
             self._trend_calculator.clear_calculation_cache()
@@ -1140,6 +1140,7 @@ class TibberPricesSensor(TibberPricesEntity, RestoreSensor):
         cached_data.update(
             {
                 "trend_attributes": self._trend_calculator.get_trend_attributes(),
+                "trajectory_attributes": self._trend_calculator.get_trajectory_attributes(),
                 "current_trend_attributes": self._trend_calculator.get_current_trend_attributes(),
                 "trend_change_attributes": self._trend_calculator.get_trend_change_attributes(),
                 "volatility_attributes": self._volatility_calculator.get_volatility_attributes(),

custom_components/tibber_prices/sensor/definitions.py

@@ -529,11 +529,11 @@ FUTURE_TREND_SENSORS = (
         suggested_display_precision=2,
         entity_registry_enabled_default=True,
     ),
-    # Price trend forecast sensors (will prices be higher/lower in X hours?)
+    # Price outlook forecast sensors (is the average of the next Xh cheaper/more expensive than now?)
     # Default enabled: 1h-5h
     SensorEntityDescription(
-        key="price_trend_1h",
+        key="price_outlook_1h",
-        translation_key="price_trend_1h",
+        translation_key="price_outlook_1h",
         icon="mdi:trending-up",  # Dynamic: shows trending-up/trending-down/trending-neutral based on trend value
         device_class=SensorDeviceClass.ENUM,
         state_class=None,  # Enum values: no statistics
@@ -541,8 +541,8 @@ FUTURE_TREND_SENSORS = (
         entity_registry_enabled_default=True,
     ),
     SensorEntityDescription(
-        key="price_trend_2h",
+        key="price_outlook_2h",
-        translation_key="price_trend_2h",
+        translation_key="price_outlook_2h",
         icon="mdi:trending-up",  # Dynamic: shows trending-up/trending-down/trending-neutral based on trend value
         device_class=SensorDeviceClass.ENUM,
         state_class=None,  # Enum values: no statistics
@@ -550,8 +550,8 @@ FUTURE_TREND_SENSORS = (
         entity_registry_enabled_default=True,
     ),
     SensorEntityDescription(
-        key="price_trend_3h",
+        key="price_outlook_3h",
-        translation_key="price_trend_3h",
+        translation_key="price_outlook_3h",
         icon="mdi:trending-up",  # Dynamic: shows trending-up/trending-down/trending-neutral based on trend value
         device_class=SensorDeviceClass.ENUM,
         state_class=None,  # Enum values: no statistics
@@ -559,8 +559,8 @@ FUTURE_TREND_SENSORS = (
         entity_registry_enabled_default=True,
     ),
     SensorEntityDescription(
-        key="price_trend_4h",
+        key="price_outlook_4h",
-        translation_key="price_trend_4h",
+        translation_key="price_outlook_4h",
         icon="mdi:trending-up",  # Dynamic: shows trending-up/trending-down/trending-neutral based on trend value
         device_class=SensorDeviceClass.ENUM,
         state_class=None,  # Enum values: no statistics
@@ -568,8 +568,8 @@ FUTURE_TREND_SENSORS = (
         entity_registry_enabled_default=True,
     ),
     SensorEntityDescription(
-        key="price_trend_5h",
+        key="price_outlook_5h",
-        translation_key="price_trend_5h",
+        translation_key="price_outlook_5h",
         icon="mdi:trending-up",  # Dynamic: shows trending-up/trending-down/trending-neutral based on trend value
         device_class=SensorDeviceClass.ENUM,
         state_class=None,  # Enum values: no statistics
@@ -578,8 +578,8 @@ FUTURE_TREND_SENSORS = (
     ),
     # Disabled by default: 6h, 8h, 12h
     SensorEntityDescription(
-        key="price_trend_6h",
+        key="price_outlook_6h",
-        translation_key="price_trend_6h",
+        translation_key="price_outlook_6h",
         icon="mdi:trending-up",  # Dynamic: shows trending-up/trending-down/trending-neutral based on trend value
         device_class=SensorDeviceClass.ENUM,
         state_class=None,  # Enum values: no statistics
@@ -587,8 +587,8 @@ FUTURE_TREND_SENSORS = (
         entity_registry_enabled_default=False,
     ),
     SensorEntityDescription(
-        key="price_trend_8h",
+        key="price_outlook_8h",
-        translation_key="price_trend_8h",
+        translation_key="price_outlook_8h",
         icon="mdi:trending-up",  # Dynamic: shows trending-up/trending-down/trending-neutral based on trend value
         device_class=SensorDeviceClass.ENUM,
         state_class=None,  # Enum values: no statistics
@@ -596,8 +596,89 @@ FUTURE_TREND_SENSORS = (
         entity_registry_enabled_default=False,
     ),
     SensorEntityDescription(
-        key="price_trend_12h",
+        key="price_outlook_12h",
-        translation_key="price_trend_12h",
+        translation_key="price_outlook_12h",
+        icon="mdi:trending-up",  # Dynamic: shows trending-up/trending-down/trending-neutral based on trend value
+        device_class=SensorDeviceClass.ENUM,
+        state_class=None,  # Enum values: no statistics
+        options=["strongly_falling", "falling", "stable", "rising", "strongly_rising"],
+        entity_registry_enabled_default=False,
+    ),
+)
+
+# ----------------------------------------------------------------------------
+# 5b. PRICE TRAJECTORY SENSORS (first-half vs second-half window comparison)
+# ----------------------------------------------------------------------------
+# These sensors reveal turning points: is the price rising or falling WITHIN
+# the window? Complements price_outlook_Xh sensors.
+#
+# Example at a price minimum (12:00):
+# - price_outlook_4h: "strongly_falling" (Ø next 4h is below current high)
+# - price_trajectory_4h: "rising" (second half avg > first half avg)
+# → Combined: act now, reversal is coming within the window.
+#
+# Coverage starts at 2h (minimum for meaningful first/second half split).
+# Default enabled: 2h-5h
+
+PRICE_TRAJECTORY_SENSORS = (
+    SensorEntityDescription(
+        key="price_trajectory_2h",
+        translation_key="price_trajectory_2h",
+        icon="mdi:trending-up",  # Dynamic: shows trending-up/trending-down/trending-neutral based on trend value
+        device_class=SensorDeviceClass.ENUM,
+        state_class=None,  # Enum values: no statistics
+        options=["strongly_falling", "falling", "stable", "rising", "strongly_rising"],
+        entity_registry_enabled_default=True,
+    ),
+    SensorEntityDescription(
+        key="price_trajectory_3h",
+        translation_key="price_trajectory_3h",
+        icon="mdi:trending-up",  # Dynamic: shows trending-up/trending-down/trending-neutral based on trend value
+        device_class=SensorDeviceClass.ENUM,
+        state_class=None,  # Enum values: no statistics
+        options=["strongly_falling", "falling", "stable", "rising", "strongly_rising"],
+        entity_registry_enabled_default=True,
+    ),
+    SensorEntityDescription(
+        key="price_trajectory_4h",
+        translation_key="price_trajectory_4h",
+        icon="mdi:trending-up",  # Dynamic: shows trending-up/trending-down/trending-neutral based on trend value
+        device_class=SensorDeviceClass.ENUM,
+        state_class=None,  # Enum values: no statistics
+        options=["strongly_falling", "falling", "stable", "rising", "strongly_rising"],
+        entity_registry_enabled_default=True,
+    ),
+    SensorEntityDescription(
+        key="price_trajectory_5h",
+        translation_key="price_trajectory_5h",
+        icon="mdi:trending-up",  # Dynamic: shows trending-up/trending-down/trending-neutral based on trend value
+        device_class=SensorDeviceClass.ENUM,
+        state_class=None,  # Enum values: no statistics
+        options=["strongly_falling", "falling", "stable", "rising", "strongly_rising"],
+        entity_registry_enabled_default=True,
+    ),
+    # Disabled by default: 6h, 8h, 12h
+    SensorEntityDescription(
+        key="price_trajectory_6h",
+        translation_key="price_trajectory_6h",
+        icon="mdi:trending-up",  # Dynamic: shows trending-up/trending-down/trending-neutral based on trend value
+        device_class=SensorDeviceClass.ENUM,
+        state_class=None,  # Enum values: no statistics
+        options=["strongly_falling", "falling", "stable", "rising", "strongly_rising"],
+        entity_registry_enabled_default=False,
+    ),
+    SensorEntityDescription(
+        key="price_trajectory_8h",
+        translation_key="price_trajectory_8h",
+        icon="mdi:trending-up",  # Dynamic: shows trending-up/trending-down/trending-neutral based on trend value
+        device_class=SensorDeviceClass.ENUM,
+        state_class=None,  # Enum values: no statistics
+        options=["strongly_falling", "falling", "stable", "rising", "strongly_rising"],
+        entity_registry_enabled_default=False,
+    ),
+    SensorEntityDescription(
+        key="price_trajectory_12h",
+        translation_key="price_trajectory_12h",
         icon="mdi:trending-up",  # Dynamic: shows trending-up/trending-down/trending-neutral based on trend value
         device_class=SensorDeviceClass.ENUM,
         state_class=None,  # Enum values: no statistics
@@ -970,6 +1051,7 @@ ENTITY_DESCRIPTIONS = (
     *WINDOW_24H_SENSORS,
     *FUTURE_MEAN_SENSORS,
     *FUTURE_TREND_SENSORS,
+    *PRICE_TRAJECTORY_SENSORS,
     *VOLATILITY_SENSORS,
     *BEST_PRICE_TIMING_SENSORS,
     *PEAK_PRICE_TIMING_SENSORS,

custom_components/tibber_prices/sensor/value_getters.py

@@ -206,15 +206,23 @@ def get_value_getter_mapping(  # noqa: PLR0913 - needs all calculators as parame
         "current_price_trend": trend_calculator.get_current_trend_value,
         "next_price_trend_change": trend_calculator.get_next_trend_change_value,
         "trend_change_in_minutes": lambda: _minutes_to_hours(trend_calculator.get_trend_change_in_minutes_value()),
-        # Price trend sensors
+        # Price outlook sensors (current price vs average of next Xh)
-        "price_trend_1h": lambda: trend_calculator.get_price_trend_value(hours=1),
+        "price_outlook_1h": lambda: trend_calculator.get_price_outlook_value(hours=1),
-        "price_trend_2h": lambda: trend_calculator.get_price_trend_value(hours=2),
+        "price_outlook_2h": lambda: trend_calculator.get_price_outlook_value(hours=2),
-        "price_trend_3h": lambda: trend_calculator.get_price_trend_value(hours=3),
+        "price_outlook_3h": lambda: trend_calculator.get_price_outlook_value(hours=3),
-        "price_trend_4h": lambda: trend_calculator.get_price_trend_value(hours=4),
+        "price_outlook_4h": lambda: trend_calculator.get_price_outlook_value(hours=4),
-        "price_trend_5h": lambda: trend_calculator.get_price_trend_value(hours=5),
+        "price_outlook_5h": lambda: trend_calculator.get_price_outlook_value(hours=5),
-        "price_trend_6h": lambda: trend_calculator.get_price_trend_value(hours=6),
+        "price_outlook_6h": lambda: trend_calculator.get_price_outlook_value(hours=6),
-        "price_trend_8h": lambda: trend_calculator.get_price_trend_value(hours=8),
+        "price_outlook_8h": lambda: trend_calculator.get_price_outlook_value(hours=8),
-        "price_trend_12h": lambda: trend_calculator.get_price_trend_value(hours=12),
+        "price_outlook_12h": lambda: trend_calculator.get_price_outlook_value(hours=12),
+        # Price trajectory sensors (first-half vs second-half window, reveals turning points)
+        "price_trajectory_2h": lambda: trend_calculator.get_price_trajectory_value(hours=2),
+        "price_trajectory_3h": lambda: trend_calculator.get_price_trajectory_value(hours=3),
+        "price_trajectory_4h": lambda: trend_calculator.get_price_trajectory_value(hours=4),
+        "price_trajectory_5h": lambda: trend_calculator.get_price_trajectory_value(hours=5),
+        "price_trajectory_6h": lambda: trend_calculator.get_price_trajectory_value(hours=6),
+        "price_trajectory_8h": lambda: trend_calculator.get_price_trajectory_value(hours=8),
+        "price_trajectory_12h": lambda: trend_calculator.get_price_trajectory_value(hours=12),
         # Diagnostic sensors
         "data_timestamp": get_data_timestamp,
         # Data lifecycle status sensor