diff --git a/src/libecalc/presentation/yaml/domain/time_series_collections.py b/src/libecalc/presentation/yaml/domain/time_series_collections.py
index 244e0fe18b..f23fc5ca3c 100644
--- a/src/libecalc/presentation/yaml/domain/time_series_collections.py
+++ b/src/libecalc/presentation/yaml/domain/time_series_collections.py
@@ -1,4 +1,5 @@
 from datetime import datetime
+from typing import Self
 
 from libecalc.presentation.yaml.domain.time_series import TimeSeries
 from libecalc.presentation.yaml.domain.time_series_collection import TimeSeriesCollection
@@ -17,7 +18,41 @@ class TimeSeriesCollections(TimeSeriesProvider):
     steps in all collections.
     """
 
-    def __init__(self, time_series: list[YamlTimeSeriesCollection], resources: dict[str, Resource]):
+    def __init__(self, time_series_collections: dict[str, TimeSeriesCollection]):
+        self._time_series_collections = time_series_collections
+
+    def get_time_series_references(self) -> list[str]:
+        time_series_references = []
+        for collection in self._time_series_collections.values():
+            for time_series_reference in collection.get_time_series_references():
+                time_series_references.append(f"{collection.name};{time_series_reference}")
+        return time_series_references
+
+    def get_time_series(self, time_series_id: str) -> TimeSeries:
+        reference_id_parts = time_series_id.split(";")
+        if len(reference_id_parts) != 2:
+            raise TimeSeriesNotFound(time_series_id)
+        [collection_id, time_series_id] = reference_id_parts
+
+        if collection_id not in self._time_series_collections:
+            raise TimeSeriesNotFound(time_series_id)
+
+        return self._time_series_collections[collection_id].get_time_series(time_series_id)
+
+    def get_time_vector(self) -> set[datetime]:
+        time_vector: set[datetime] = set()
+        for time_series_collection in self._time_series_collections.values():
+            if time_series_collection.should_influence_time_vector():
+                time_vector = time_vector.union(time_series_collection.get_time_vector())
+        return time_vector
+
+    @classmethod
+    def create(
+        cls,
+        time_series: list[YamlTimeSeriesCollection],
+        resources: dict[str, Resource],
+        raise_on_error: bool,
+    ) -> tuple[Self, list[ModelValidationError]]:
         time_series_collections: dict[str, TimeSeriesCollection] = {}
         errors: list[ModelValidationError] = []
         for time_series_collection in time_series:
@@ -52,32 +87,7 @@ def __init__(self, time_series: list[YamlTimeSeriesCollection], resources: dict[
                         for error in e.errors()
                     ]
                 )
-        if len(errors) != 0:
+        if raise_on_error and len(errors) != 0:
             raise ModelValidationException(errors=errors)
 
-        self._time_series_collections = time_series_collections
-
-    def get_time_series_references(self) -> list[str]:
-        time_series_references = []
-        for collection in self._time_series_collections.values():
-            for time_series_reference in collection.get_time_series_references():
-                time_series_references.append(f"{collection.name};{time_series_reference}")
-        return time_series_references
-
-    def get_time_series(self, time_series_id: str) -> TimeSeries:
-        reference_id_parts = time_series_id.split(";")
-        if len(reference_id_parts) != 2:
-            raise TimeSeriesNotFound(time_series_id)
-        [collection_id, time_series_id] = reference_id_parts
-
-        if collection_id not in self._time_series_collections:
-            raise TimeSeriesNotFound(time_series_id)
-
-        return self._time_series_collections[collection_id].get_time_series(time_series_id)
-
-    def get_time_vector(self) -> set[datetime]:
-        time_vector: set[datetime] = set()
-        for time_series_collection in self._time_series_collections.values():
-            if time_series_collection.should_influence_time_vector():
-                time_vector = time_vector.union(time_series_collection.get_time_vector())
-        return time_vector
+        return cls(time_series_collections), errors
diff --git a/src/libecalc/presentation/yaml/model.py b/src/libecalc/presentation/yaml/model.py
index 229440f710..c0052bf3a1 100644
--- a/src/libecalc/presentation/yaml/model.py
+++ b/src/libecalc/presentation/yaml/model.py
@@ -122,7 +122,13 @@ def end(self) -> Optional[datetime]:
         return self._configuration.end
 
     def _get_time_series_collections(self) -> TimeSeriesCollections:
-        return TimeSeriesCollections(time_series=self._configuration.time_series, resources=self.resources)
+        time_series_collections, err = TimeSeriesCollections.create(
+            time_series=self._configuration.time_series,
+            resources=self.resources,
+            raise_on_error=True,
+        )
+        assert len(err) == 0
+        return time_series_collections
 
     def _get_time_vector(self):
         return get_global_time_vector(
@@ -158,7 +164,11 @@ def get_graph(self) -> ComponentGraph:
         return self._graph
 
     def _get_token_references(self, yaml_model: YamlValidator) -> list[str]:
-        token_references = self._get_time_series_collections().get_time_series_references()
+        # Only get references for valid time series collections
+        time_series_collections, _ = TimeSeriesCollections.create(
+            time_series=self._configuration.time_series, resources=self.resources, raise_on_error=False
+        )
+        token_references = time_series_collections.get_time_series_references()
 
         for reference in yaml_model.variables:
             token_references.append(f"$var.{reference}")