diff --git a/backend/app/plan/router.py b/backend/app/plan/router.py
index 0f68794b..15646c00 100644
--- a/backend/app/plan/router.py
+++ b/backend/app/plan/router.py
@@ -30,7 +30,7 @@ from backend.app.db.connection import db_engine
 
 from model_data.optimiser.GainOptimiser import GainOptimiser
 from model_data.optimiser.CostOptimiser import CostOptimiser
-from model_data.utils import epc_to_sap_lower_bound
+from backend.app.utils import epc_to_sap_lower_bound
 from model_data.optimiser.optimiser_functions import prepare_input_measures
 
 # TODO: This is placeholder until data is stored in DB
diff --git a/backend/app/utils.py b/backend/app/utils.py
index a3eac3f2..bc052e74 100644
--- a/backend/app/utils.py
+++ b/backend/app/utils.py
@@ -65,3 +65,55 @@ def generate_api_key():
     # Generate a 40 character long api key
     api_key = ''.join(secrets.choice(characters) for _ in range(40))
     return api_key
+
+
+def sap_to_epc(sap_points: int):
+    """
+    Simple utility function to convert SAP points to EPC rating.
+    :param sapPoints: numerical value of SAP points, typically between 0 and 100
+    :return:
+    """
+
+    if sap_points <= 0 or sap_points > 100:
+        raise ValueError("SAP points should be between 1 and 100.")
+
+    if sap_points > 91:
+        return "A"
+    elif sap_points > 80:
+        return "B"
+    elif sap_points > 69:
+        return "C"
+    elif sap_points > 55:
+        return "D"
+    elif sap_points > 39:
+        return "E"
+    elif sap_points > 21:
+        return "F"
+    else:
+        return "G"
+
+
+def epc_to_sap_lower_bound(epc: str):
+    """
+    Given an EPC rating, returns the lower bound SAP score required
+    to hit that EPC rating
+    :param epc:  EPC rating, between A and G
+    :return:
+    """
+
+    if epc == "A":
+        return 92
+    elif epc == "B":
+        return 81
+    elif epc == "C":
+        return 70
+    elif epc == "D":
+        return 56
+    elif epc == "E":
+        return 40
+    elif epc == "F":
+        return 22
+    elif epc == "G":
+        return 1
+    else:
+        raise ValueError("EPC rating should be between A and G")
diff --git a/model_data/utils.py b/model_data/utils.py
index a59699da..744914a4 100644
--- a/model_data/utils.py
+++ b/model_data/utils.py
@@ -24,57 +24,3 @@ def correct_spelling(text):
 
     corrected_text = ' '.join(corrected_words)
     return corrected_text
-
-
-def sap_to_epc(sap_points: int):
-    """
-    Simple utility function to convert SAP points to EPC rating.
-    :param sapPoints: numerical value of SAP points, typically between 0 and 100
-    :return:
-    """
-
-    if sap_points <= 0 or sap_points > 100:
-        raise ValueError("SAP points should be between 1 and 100.")
-
-    if sap_points > 91:
-        return "A"
-    elif sap_points > 80:
-        return "B"
-    elif sap_points > 69:
-        return "C"
-    elif sap_points > 55:
-        return "D"
-    elif sap_points > 39:
-        return "E"
-    elif sap_points > 21:
-        return "F"
-    else:
-        return "G"
-
-
-def epc_to_sap_lower_bound(epc: str):
-    """
-    Given an EPC rating, returns the lower bound SAP score required
-    to hit that EPC rating
-    :param epc:  EPC rating, between A and G
-    :return:
-    """
-
-    if epc == "A":
-        return 92
-    elif epc == "B":
-        return 81
-    elif epc == "C":
-        return 70
-    elif epc == "D":
-        return 56
-    elif epc == "E":
-        return 40
-    elif epc == "F":
-        return 22
-    elif epc == "G":
-        return 1
-    else:
-        raise ValueError("EPC rating should be between A and G")
-
-