diff --git a/flexmeasures/api/v3_0/tests/test_sensor_schedules_fresh_db.py b/flexmeasures/api/v3_0/tests/test_sensor_schedules_fresh_db.py
index 3b4db45fb1..1c70b12c9b 100644
--- a/flexmeasures/api/v3_0/tests/test_sensor_schedules_fresh_db.py
+++ b/flexmeasures/api/v3_0/tests/test_sensor_schedules_fresh_db.py
@@ -324,6 +324,7 @@ def test_inflexible_device_sensors_priority(
     fresh_db,
     add_market_prices_fresh_db,
     add_battery_assets_fresh_db,
+    setup_fresh_test_forecast_data,
     battery_soc_sensor_fresh_db,
     add_charging_station_assets_fresh_db,
     keep_scheduling_queue_empty,
@@ -341,6 +342,9 @@ def test_inflexible_device_sensors_priority(
         "consumption-price": {"sensor": price_sensor_id},
         "production-price": {"sensor": price_sensor_id},
         "site-power-capacity": "1 TW",  # should be big enough to avoid any infeasibilities
+        "curtailable-device-sensors": [
+            setup_fresh_test_forecast_data["solar-sensor"].id
+        ],
     }
     if context_sensor_num:
         other_asset = add_battery_assets_fresh_db["Test small battery"]
diff --git a/flexmeasures/data/schemas/scheduling/__init__.py b/flexmeasures/data/schemas/scheduling/__init__.py
index 763bd08f50..0fac57b6e8 100644
--- a/flexmeasures/data/schemas/scheduling/__init__.py
+++ b/flexmeasures/data/schemas/scheduling/__init__.py
@@ -290,6 +290,12 @@ class FlexContextSchema(Schema):
         metadata=metadata.INFLEXIBLE_DEVICE_SENSORS.to_dict(),
     )
 
+    curtailable_device_sensors = fields.List(
+        SensorIdField(),
+        data_key="curtailable-device-sensors",
+        metadata=metadata.CURTAILABLE_DEVICE_SENSORS.to_dict(),
+    )
+
     def set_default_breach_prices(
         self, data: dict, fields: list[str], price: ur.Quantity
     ):
diff --git a/flexmeasures/data/schemas/scheduling/metadata.py b/flexmeasures/data/schemas/scheduling/metadata.py
index 5a0e7db803..31674b363e 100644
--- a/flexmeasures/data/schemas/scheduling/metadata.py
+++ b/flexmeasures/data/schemas/scheduling/metadata.py
@@ -30,11 +30,19 @@ def to_dict(self):
 INFLEXIBLE_DEVICE_SENSORS = MetaData(
     description="""Power sensors representing devices that are relevant, but not flexible in the timing of their demand/supply.
 For example, a sensor recording rooftop solar power that is connected behind the main meter, and whose production falls under the same contract as the flexible device(s) being scheduled.
-Their power demand cannot be adjusted but still matters for finding the best schedule for other devices.
+Their power generation (or demand) cannot be adjusted but still matters for finding the best schedule for other devices.
 Must be a list of integers.
 """,
     example=[3, 4],
 )
+CURTAILABLE_DEVICE_SENSORS = MetaData(
+    description="""Power sensors representing devices that are curtailable.
+For example, a sensor recording rooftop solar power that is connected behind the main meter, and whose production falls under the same contract as the flexible device(s) being scheduled.
+Their power generation (or demand) can be reduced.
+Must be a list of integers.
+""",
+    example=[5, 6],
+)
 COMMITMENTS = MetaData(
     description="Prior commitments. Support for this field in the UI is still under further development, but you can study the code to learn more.",
     example=[],