diff --git a/hub/catalog_factories/energy_systems/montreal_custom_catalog.py b/hub/catalog_factories/energy_systems/montreal_custom_catalog.py
index 0c0abb88..1c6bdba5 100644
--- a/hub/catalog_factories/energy_systems/montreal_custom_catalog.py
+++ b/hub/catalog_factories/energy_systems/montreal_custom_catalog.py
@@ -84,8 +84,9 @@ class MontrealCustomCatalog(Catalog):
                                                   heat_efficiency=heating_efficiency,
                                                   cooling_efficiency=cooling_efficiency,
                                                   electricity_efficiency=electricity_efficiency,
-                                                  energy_storage_systems=storage_systems
-                                                    )
+                                                  energy_storage_systems=storage_systems,
+                                                  dual_supply_capability=False
+                                                  )
       _equipments.append(generation_system)
 
     return _equipments