diff --git a/exports/energy_systems_factory.py b/exports/energy_systems_factory.py
index 27442e1b..9003b21a 100644
--- a/exports/energy_systems_factory.py
+++ b/exports/energy_systems_factory.py
@@ -16,7 +16,8 @@ class EnergySystemsExportFactory:
   Exports factory class for energy systems
   """
 
-  def __init__(self, city, user_input, hp_model, output_path, sim_type=0, data_type='heat', base_path=None):
+  def __init__(self, city, user_input, hp_model, output_path, sim_type=0, data_type='heat', base_path=None,
+               demand_path=None):
     """
 
     :param city: the city object
@@ -26,7 +27,9 @@ class EnergySystemsExportFactory:
     :param sim_type: the simulation type, 0 for series 1 for parallel
     :param data_type: indicates whether cooling or heating data is used
     :param base_path: the data directory of energy systems
+    :param demand_path: path to hourly energy dempand file
     """
+
     self._city = city
     if base_path is None:
       base_path = Path(Path(__file__).parent.parent / 'data/energy_systems')
@@ -36,6 +39,7 @@ class EnergySystemsExportFactory:
     self._data_type = data_type
     self._output_path = output_path
     self._sim_type = sim_type
+    self._demand_path = demand_path
 
   def _export_heat_pump(self, source):
     """
@@ -44,10 +48,10 @@ class EnergySystemsExportFactory:
     :return: None
     """
     if source == 'air':
-      AirSourceHPExport(self._base_path, self._city, self._output_path, self._sim_type)\
+      AirSourceHPExport(self._base_path, self._city, self._output_path, self._sim_type, self._demand_path)\
         .execute_insel(self._user_input, self._hp_model, self._data_type)
     elif source == 'water':
-      WaterToWaterHPExport(self._base_path, self._city, self._output_path, self._sim_type)\
+      WaterToWaterHPExport(self._base_path, self._city, self._output_path, self._sim_type, self._demand_path)\
         .execute_insel(self._user_input, self._hp_model)
 
   def export(self, source='air'):