diff --git a/src/aeros_simulation/service.py b/src/aeros_simulation/service.py
index b96b55e..63a5eb2 100644
--- a/src/aeros_simulation/service.py
+++ b/src/aeros_simulation/service.py
@@ -278,7 +278,7 @@ async def get_simulation_with_plot_result(
         elif use_location_tag:
             query = query.join(
                 AerosNode, AerosNode.id == AerosSimulationPlotResult.aeros_node_id
-            ).filter(AerosNode.node_name == node_id)
+            ).filter(AerosNode.node_name == node_id).filter(AerosNode.node_type == "RegularNode")
         else:
             query = query.join(
                 AerosNode, AerosNode.id == AerosSimulationPlotResult.aeros_node_id
diff --git a/src/aeros_simulation/utils.py b/src/aeros_simulation/utils.py
index 6a56baa..f07357b 100644
--- a/src/aeros_simulation/utils.py
+++ b/src/aeros_simulation/utils.py
@@ -123,6 +123,8 @@ def filter_by_month(hourly_data, start_month, end_month):
             filtered_data.append(data)
     
     return filtered_data
+
+
 def calculate_equivalent_derate_hours(data_list, max_flow_rate: float = 660) -> float:
     """
     Calculate Equivalent Forced Derated Hours (EFDH).