diff --git a/backend/app/plan/schemas.py b/backend/app/plan/schemas.py
index 29a7d5e3..0d58c7e9 100644
--- a/backend/app/plan/schemas.py
+++ b/backend/app/plan/schemas.py
@@ -87,7 +87,7 @@ class PlanTriggerRequest(BaseModel):
     multi_plan: Optional[bool] = False
 
     # if False, allows optimisation to be switched off
-    optimise: Optional[bool] = False
+    optimise: Optional[bool] = True
 
     _allowed_goals = {"Increasing EPC"}