diff --git a/hub/catalog_factories/construction_catalog_factory.py b/hub/catalog_factories/construction_catalog_factory.py
index 5f05177c..daebce6f 100644
--- a/hub/catalog_factories/construction_catalog_factory.py
+++ b/hub/catalog_factories/construction_catalog_factory.py
@@ -15,15 +15,11 @@ Catalog = TypeVar('Catalog')
 
 
 class ConstructionCatalogFactory:
-  def __init__(self, file_type, base_path=None):
+  def __init__(self, handler, base_path=None):
     if base_path is None:
       base_path = Path(Path(__file__).parent.parent / 'data/construction')
-    self._catalog_type = '_' + file_type.lower()
-    class_funcs = validate_import_export_type(ConstructionCatalogFactory)
-    if self._catalog_type not in class_funcs:
-      err_msg = f"Wrong import type. Valid functions include {class_funcs}"
-      logging.error(err_msg)
-      raise Exception(err_msg)
+    self._handler = '_' + handler.lower()
+    validate_import_export_type(ConstructionCatalogFactory, handler)
     self._path = base_path
 
   @property
@@ -46,4 +42,4 @@ class ConstructionCatalogFactory:
     Enrich the city given to the class using the class given handler
     :return: Catalog
     """
-    return getattr(self, self._catalog_type, lambda: None)
+    return getattr(self, self._handler, lambda: None)
diff --git a/hub/catalog_factories/energy_systems_catalog_factory.py b/hub/catalog_factories/energy_systems_catalog_factory.py
index 79a3593a..b7cf597c 100644
--- a/hub/catalog_factories/energy_systems_catalog_factory.py
+++ b/hub/catalog_factories/energy_systems_catalog_factory.py
@@ -14,15 +14,11 @@ Catalog = TypeVar('Catalog')
 
 
 class EnergySystemsCatalogFactory:
-  def __init__(self, file_type, base_path=None):
+  def __init__(self, handler, base_path=None):
     if base_path is None:
       base_path = Path(Path(__file__).parent.parent / 'data/energy_systems')
-    self._catalog_type = '_' + file_type.lower()
-    class_funcs = validate_import_export_type(EnergySystemsCatalogFactory)
-    if self._catalog_type not in class_funcs:
-      error_message = f'Wrong import type. Valid functions include {class_funcs}'
-      logging.error(error_message)
-      raise Exception(error_message)
+    self._handler = '_' + handler.lower()
+    validate_import_export_type(EnergySystemsCatalogFactory, handler)
     self._path = base_path
 
   @property
@@ -38,4 +34,4 @@ class EnergySystemsCatalogFactory:
     Enrich the city given to the class using the class given handler
     :return: Catalog
     """
-    return getattr(self, self._catalog_type, lambda: None)
+    return getattr(self, self._handler, lambda: None)
diff --git a/hub/catalog_factories/greenery_catalog_factory.py b/hub/catalog_factories/greenery_catalog_factory.py
index 69608255..f9d16d79 100644
--- a/hub/catalog_factories/greenery_catalog_factory.py
+++ b/hub/catalog_factories/greenery_catalog_factory.py
@@ -17,15 +17,11 @@ class GreeneryCatalogFactory:
   """
   GreeneryCatalogFactory class
   """
-  def __init__(self, file_type, base_path=None):
+  def __init__(self, handler, base_path=None):
     if base_path is None:
       base_path = Path(Path(__file__).parent.parent / 'data/greenery')
-    self._catalog_type = '_' + file_type.lower()
-    class_funcs = validate_import_export_type(GreeneryCatalogFactory)
-    if self._catalog_type not in class_funcs:
-      error_message = f'Wrong import type. Valid functions include {class_funcs}'
-      logging.error(error_message)
-      raise Exception(error_message)
+    self._handler = '_' + handler.lower()
+    class_funcs = validate_import_export_type(GreeneryCatalogFactory, handler)
     self._path = base_path
 
   @property
@@ -42,4 +38,4 @@ class GreeneryCatalogFactory:
     Enrich the city given to the class using the class given handler
     :return: Catalog
     """
-    return getattr(self, self._catalog_type, lambda: None)
+    return getattr(self, self._handler, lambda: None)
diff --git a/hub/catalog_factories/usage/comnet_catalog.py b/hub/catalog_factories/usage/comnet_catalog.py
index 59166ef5..df4b4975 100644
--- a/hub/catalog_factories/usage/comnet_catalog.py
+++ b/hub/catalog_factories/usage/comnet_catalog.py
@@ -4,6 +4,7 @@ SPDX - License - Identifier: LGPL - 3.0 - or -later
 Copyright © 2022 Concordia CERC group
 Project Coder Guille Gutierrez guillermo.gutierrezmorote@concordia.ca
 """
+import io
 from typing import Dict
 
 import pandas as pd
@@ -129,38 +130,39 @@ class ComnetCatalog(Catalog):
     for usage_name in comnet_usages:
       if usage_name == 'C-13 Data Center':
         continue
-      _extracted_data = pd.read_excel(
-        self._comnet_schedules_path,
-        sheet_name=comnet_usages[usage_name],
-        skiprows=[0, 1, 2, 3], nrows=39, usecols="A:AA"
-      )
-      _schedules = {}
-      for row in range(0, 39, 3):
-        _schedule_values = {}
-        schedule_name = _extracted_data.loc[row:row, 'Description'].item()
-        schedule_data_type = comnet_data_types[_extracted_data.loc[row:row, 'Type'].item()]
-        for day in comnet_days:
-          # Monday to Friday
-          start = row
-          end = row + 1
-          if day == cte.SATURDAY:
-            start = start + 1
-            end = end + 1
-          elif day == cte.SUNDAY or day == cte.HOLIDAY:
-            start = start + 2
-            end = end + 2
-          _schedule_values[day] = _extracted_data.iloc[start:end, 3:27].to_numpy().tolist()[0]
-        _schedule = []
-        for day in _schedule_values:
-          if schedule_name == 'ClgSetPt' or schedule_name == 'HtgSetPt' or schedule_name == 'WtrHtrSetPt':
-            # to celsius
-            if 'n.a.' in _schedule_values[day]:
-              _schedule_values[day] = None
-            else:
-              _schedule_values[day] = [(float(value)-32)*5/9 for value in _schedule_values[day]]
-          _schedule.append(Schedule(schedule_name, _schedule_values[day], schedule_data_type, cte.HOUR, cte.DAY, [day]))
-        _schedules[schedule_name] = _schedule
-      dictionary[usage_name] = _schedules
+      with open(self._comnet_schedules_path, 'rb') as xls:
+        _extracted_data = pd.read_excel(
+          io.BytesIO(xls.read()),
+          sheet_name=comnet_usages[usage_name],
+          skiprows=[0, 1, 2, 3], nrows=39, usecols="A:AA"
+        )
+        _schedules = {}
+        for row in range(0, 39, 3):
+          _schedule_values = {}
+          schedule_name = _extracted_data.loc[row:row, 'Description'].item()
+          schedule_data_type = comnet_data_types[_extracted_data.loc[row:row, 'Type'].item()]
+          for day in comnet_days:
+            # Monday to Friday
+            start = row
+            end = row + 1
+            if day == cte.SATURDAY:
+              start = start + 1
+              end = end + 1
+            elif day == cte.SUNDAY or day == cte.HOLIDAY:
+              start = start + 2
+              end = end + 2
+            _schedule_values[day] = _extracted_data.iloc[start:end, 3:27].to_numpy().tolist()[0]
+          _schedule = []
+          for day in _schedule_values:
+            if schedule_name == 'ClgSetPt' or schedule_name == 'HtgSetPt' or schedule_name == 'WtrHtrSetPt':
+              # to celsius
+              if 'n.a.' in _schedule_values[day]:
+                _schedule_values[day] = None
+              else:
+                _schedule_values[day] = [(float(value)-32)*5/9 for value in _schedule_values[day]]
+            _schedule.append(Schedule(schedule_name, _schedule_values[day], schedule_data_type, cte.HOUR, cte.DAY, [day]))
+          _schedules[schedule_name] = _schedule
+        dictionary[usage_name] = _schedules
     return dictionary
 
   def _read_archetype_file(self) -> Dict:
@@ -169,12 +171,13 @@ class ComnetCatalog(Catalog):
     :return : Dict
     """
     number_usage_types = 33
-    xl_file = pd.ExcelFile(self._comnet_archetypes_path)
-    file_data = pd.read_excel(
-      xl_file, sheet_name="Modeling Data",
-      skiprows=[0, 1, 2, 24],
-      nrows=number_usage_types, usecols="A:AB"
-    )
+    with open(self._comnet_archetypes_path, 'rb') as xls:
+      _extracted_data = pd.read_excel(
+        io.BytesIO(xls.read()),
+        sheet_name="Modeling Data",
+        skiprows=[0, 1, 2, 24],
+        nrows=number_usage_types, usecols="A:AB"
+      )
 
     lighting_data = {}
     plug_loads_data = {}
@@ -184,7 +187,7 @@ class ComnetCatalog(Catalog):
     process_data = {}
     schedules_key = {}
     for j in range(0, number_usage_types-1):
-      usage_parameters = file_data.iloc[j]
+      usage_parameters = _extracted_data.iloc[j]
       usage_type = usage_parameters[0]
       lighting_data[usage_type] = usage_parameters[1:6].values.tolist()
       plug_loads_data[usage_type] = usage_parameters[8:13].values.tolist()
diff --git a/hub/catalog_factories/usage_catalog_factory.py b/hub/catalog_factories/usage_catalog_factory.py
index 6cc8855f..9c46a475 100644
--- a/hub/catalog_factories/usage_catalog_factory.py
+++ b/hub/catalog_factories/usage_catalog_factory.py
@@ -15,15 +15,11 @@ Catalog = TypeVar('Catalog')
 
 
 class UsageCatalogFactory:
-  def __init__(self, file_type, base_path=None):
+  def __init__(self, handler, base_path=None):
     if base_path is None:
       base_path = Path(Path(__file__).parent.parent / 'data/usage')
-    self._catalog_type = '_' + file_type.lower()
-    class_funcs = validate_import_export_type(UsageCatalogFactory)
-    if self._catalog_type not in class_funcs:
-      error_message = f"Wrong import type. Valid functions include {class_funcs}"
-      logging.error(error_message)
-      raise Exception(error_message)
+    self._catalog_type = '_' + handler.lower()
+    validate_import_export_type(UsageCatalogFactory, handler)
     self._path = base_path
 
   @property
diff --git a/hub/exports/energy_building_exports_factory.py b/hub/exports/energy_building_exports_factory.py
index d56618ea..57aa10c1 100644
--- a/hub/exports/energy_building_exports_factory.py
+++ b/hub/exports/energy_building_exports_factory.py
@@ -17,14 +17,10 @@ class EnergyBuildingsExportsFactory:
   """
   Energy Buildings exports factory class
   """
-  def __init__(self, export_type, city, path, target_buildings=None):
+  def __init__(self, handler, city, path, target_buildings=None):
     self._city = city
-    self._export_type = '_' + export_type.lower()
-    class_funcs = validate_import_export_type(EnergyBuildingsExportsFactory)
-    if self._export_type not in class_funcs:
-      error_message = f"Wrong import type [{self._export_type}]. Valid functions include {class_funcs}"
-      logging.error(error_message)
-      raise Exception(error_message)
+    self._export_type = '_' + handler.lower()
+    validate_import_export_type(EnergyBuildingsExportsFactory, handler)
     if isinstance(path, str):
       path = Path(path)
     self._path = path
diff --git a/hub/exports/energy_systems_factory.py b/hub/exports/energy_systems_factory.py
index 46ef9df2..0c6dd8a5 100644
--- a/hub/exports/energy_systems_factory.py
+++ b/hub/exports/energy_systems_factory.py
@@ -15,12 +15,11 @@ 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, handler, hp_model, output_path, sim_type=0, data_type='heat', base_path=None,
                demand_path=None):
     """
-
     :param city: the city object
-    :param user_input: user provided input from UI
+    :param handler: user provided input from UI
     :param hp_model: the heat pump model to run
     :param output_path: the file to hold simulation results
     :param sim_type: the simulation type, 0 for series 1 for parallel
@@ -33,7 +32,7 @@ class EnergySystemsExportFactory:
     if base_path is None:
       base_path = Path(Path(__file__).parent.parent / 'data/energy_systems')
     self._base_path = base_path
-    self._user_input = user_input
+    self._handler = handler
     self._hp_model = hp_model
     self._data_type = data_type
     self._output_path = output_path
@@ -49,10 +48,10 @@ class EnergySystemsExportFactory:
     """
     if self._source == 'air':
       return 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)
+        .execute_insel(self._handler, self._hp_model, self._data_type)
     elif self._source == 'water':
       return WaterToWaterHPExport(self._base_path, self._city, self._output_path, self._sim_type, self._demand_path)\
-        .execute_insel(self._user_input, self._hp_model)
+        .execute_insel(self._handler, self._hp_model)
 
   def export(self, source='air'):
     """
diff --git a/hub/exports/exports_factory.py b/hub/exports/exports_factory.py
index 9df40ee9..719aeb3d 100644
--- a/hub/exports/exports_factory.py
+++ b/hub/exports/exports_factory.py
@@ -17,18 +17,14 @@ class ExportsFactory:
   """
   Exports factory class
   """
-  def __init__(self, export_type, city, path,
+  def __init__(self, handler, city, path,
                target_buildings=None,
                adjacent_buildings=None,
                weather_file=None,
                weather_format=None):
     self._city = city
-    self._export_type = '_' + export_type.lower()
-    class_funcs = validate_import_export_type(ExportsFactory)
-    if self._export_type not in class_funcs:
-      error_message = f"Wrong export type [{self._export_type}]. Valid functions include {class_funcs}"
-      logging.error(error_message)
-      raise Exception(error_message)
+    self._handler = '_' + handler.lower()
+    validate_import_export_type(ExportsFactory, handler)
     if isinstance(path, str):
       path = Path(path)
     self._path = path
@@ -82,11 +78,4 @@ class ExportsFactory:
     Export the city given to the class using the given export type handler
     :return: None
     """
-    return getattr(self, self._export_type, lambda: None)
-
-  def export_debug(self):
-    """
-    Export the city given to the class using the given export type handler
-    :return: None
-    """
-    return Obj(self._city, self._path)
+    return getattr(self, self._handler, lambda: None)
\ No newline at end of file
diff --git a/hub/helpers/utils.py b/hub/helpers/utils.py
index ef461f28..89fa97d8 100644
--- a/hub/helpers/utils.py
+++ b/hub/helpers/utils.py
@@ -4,15 +4,19 @@ SPDX - License - Identifier: LGPL - 3.0 - or -later
 Copyright © 2023 Concordia CERC group
 Project Coder Peter Yefi peteryefi@gmail.com
 """
+import logging
 
 
-def validate_import_export_type(cls_name: type):
+def validate_import_export_type(cls_name: type, handler: str):
   """
   Retrieves all the function names in a class which are property types (decoration)
   and normal functions
   :param cls_name: the class name
-  :return: [str], a list of functions in the class
+  :param handler: import export handler
+  :return: None
   """
-  return [func for func in dir(cls_name)
-          if (type(getattr(cls_name, func)) is property or callable(getattr(cls_name, func)))
-          and func in cls_name.__dict__ and func[0] == '_' and func != '__init__']
+  functions = [function[1:] for function in dir(cls_name) if (type(getattr(cls_name, function)) is property or callable(getattr(cls_name, function))) and function in cls_name.__dict__ and function[0] == '_' and function != '__init__']
+  if handler.lower() not in functions:
+      error_message = f'Wrong import type [{handler}]. Valid functions include {functions}'
+      logging.error(error_message)
+      raise Exception(error_message)
diff --git a/hub/imports/construction_factory.py b/hub/imports/construction_factory.py
index 5bae6795..0bb49bd6 100644
--- a/hub/imports/construction_factory.py
+++ b/hub/imports/construction_factory.py
@@ -6,10 +6,9 @@ Project Coder Guille Gutierrez guillermo.gutierrezmorote@concordia.ca
 Code contributors: Pilar Monsalvete Alvarez de Uribarri pilar.monsalvete@concordia.ca
 """
 
-import logging
 from hub.helpers.utils import validate_import_export_type
-from hub.imports.construction.nrel_physics_parameters import NrelPhysicsParameters
 from hub.imports.construction.nrcan_physics_parameters import NrcanPhysicsParameters
+from hub.imports.construction.nrel_physics_parameters import NrelPhysicsParameters
 
 
 class ConstructionFactory:
@@ -17,12 +16,8 @@ class ConstructionFactory:
   ConstructionFactory class
   """
   def __init__(self, handler, city):
-    self._handler = '_' + handler.lower().replace(' ', '_')
-    class_funcs = validate_import_export_type(ConstructionFactory)
-    if self._handler not in class_funcs:
-      error_message = f"Wrong import type [{self._handler}]. Valid functions include {class_funcs}"
-      logging.error(error_message)
-      raise Exception(error_message)
+    self._handler = '_' + handler.lower()
+    validate_import_export_type(ConstructionFactory, handler)
     self._city = city
 
   def _nrel(self):
@@ -48,11 +43,4 @@ class ConstructionFactory:
     Enrich the city given to the class using the class given handler
     :return: None
     """
-    getattr(self, self._handler, lambda: None)()
-
-  def enrich_debug(self):
-    """
-    Enrich the city given to the class using the class given handler
-    :return: None
-    """
-    NrelPhysicsParameters(self._city).enrich_buildings()
+    getattr(self, self._handler, lambda: None)()
\ No newline at end of file
diff --git a/hub/imports/energy_systems/air_source_hp_parameters.py b/hub/imports/energy_systems/air_source_hp_parameters.py
index db91d7bc..1c0c3547 100644
--- a/hub/imports/energy_systems/air_source_hp_parameters.py
+++ b/hub/imports/energy_systems/air_source_hp_parameters.py
@@ -5,6 +5,7 @@ Copyright © 2022 Concordia CERC group
 Project Coder Peter Yefi peteryefi@gmail.comCode
 contributor Pilar Monsalvete Alvarez de Uribarri pilar.monsalvete@concordia.ca
 """
+import io
 
 import pandas as pd
 from typing import Dict
@@ -31,22 +32,19 @@ class AirSourceHeatPumpParameters:
     into a dictionary
     :return : Dict
     """
-    xl_file = pd.ExcelFile(self._base_path)
-
-    heat_pump_dfs = {sheet_name: xl_file.parse(sheet_name)
-                     for sheet_name in xl_file.sheet_names}
+    with open(self._base_path, 'rb') as xls:
+      xl_file = pd.read_excel(io.BytesIO(xls.read()), sheet_name=None)
 
     cooling_data = {}
     heating_data = {}
 
-    for sheet, dataframe in heat_pump_dfs.items():
-
+    for sheet, dataframe in xl_file.items():
       if 'Summary' in sheet:
         continue
 
       # Remove nan rows and columns and extract cooling and heating data
       # for each sheet
-      df = heat_pump_dfs[sheet].dropna(axis=1, how='all')
+      df = xl_file[sheet].dropna(axis=1, how='all')
       cooling_df = df.iloc[4:34, 0:8]
       heating_df = df.iloc[4:29, 8:20]
 
diff --git a/hub/imports/energy_systems/water_to_water_hp_parameters.py b/hub/imports/energy_systems/water_to_water_hp_parameters.py
index 541a9640..2fe85523 100644
--- a/hub/imports/energy_systems/water_to_water_hp_parameters.py
+++ b/hub/imports/energy_systems/water_to_water_hp_parameters.py
@@ -4,6 +4,7 @@ SPDX - License - Identifier: LGPL - 3.0 - or -later
 Copyright © 2022 Concordia CERC group
 Project Coder Peter Yefi peteryefi@gmail.com
 """
+import io
 
 import pandas as pd
 from typing import Dict
@@ -28,6 +29,20 @@ class WaterToWaterHPParameters:
     reads xlsx file containing water to water heat pump information
     into a dictionary
     :return : Dict
+
+    with open(self._base_path, 'rb') as xls:
+      xl_file = pd.read_excel(io.BytesIO(xls.read()))
+
+    hp_data = {}
+    flow_rates = {
+      '156': [2.84, 4.23, 5.68],
+      '256': [4.73, 7.13, 9.446],
+      '335': [6.62, 9.97, 12.93],
+    }
+
+    for sheet, dataframe in xl_file.items():
+      print(sheet, xl_file[sheet])
+      df = dataframe[xl_file[sheet].columns[1]]
     """
     xl_file = pd.ExcelFile(self._base_path)
     heat_pump_dfs = {sheet_name: xl_file.parse(sheet_name)
@@ -43,6 +58,7 @@ class WaterToWaterHPParameters:
     for sheet, dataframe in heat_pump_dfs.items():
 
       df = heat_pump_dfs[sheet].dropna(axis=1, how='all')
+      print(df)
       df = df.iloc[3:, 6:35]
 
       if '156' in sheet:
diff --git a/hub/imports/energy_systems_factory.py b/hub/imports/energy_systems_factory.py
index c5f0c6d0..c337eecd 100644
--- a/hub/imports/energy_systems_factory.py
+++ b/hub/imports/energy_systems_factory.py
@@ -5,12 +5,12 @@ Copyright © 2022 Concordia CERC group
 Project Coder Pilar Monsalvete pilar.monsalvete@concordi.
 Code contributors: Peter Yefi peteryefi@gmail.com
 """
-import logging
 from pathlib import Path
-from hub.imports.energy_systems.air_source_hp_parameters import AirSourceHeatPumpParameters
-from hub.imports.energy_systems.water_to_water_hp_parameters import WaterToWaterHPParameters
+
 from hub.helpers.utils import validate_import_export_type
+from hub.imports.energy_systems.air_source_hp_parameters import AirSourceHeatPumpParameters
 from hub.imports.energy_systems.montreal_custom_energy_system_parameters import MontrealCustomEnergySystemParameters
+from hub.imports.energy_systems.water_to_water_hp_parameters import WaterToWaterHPParameters
 
 
 class EnergySystemsFactory:
@@ -21,12 +21,8 @@ class EnergySystemsFactory:
   def __init__(self, handler, city, base_path=None):
     if base_path is None:
       base_path = Path(Path(__file__).parent.parent / 'data/energy_systems')
-    self._handler = '_' + handler.lower().replace(' ', '_')
-    class_funcs = validate_import_export_type(EnergySystemsFactory)
-    if self._handler not in class_funcs:
-      error_message = f"Wrong import type. Valid functions include {class_funcs}"
-      logging.error(error_message)
-      raise Exception(error_message)
+    self._handler = '_' + handler.lower()
+    validate_import_export_type(EnergySystemsFactory, handler)
     self._city = city
     self._base_path = base_path
 
diff --git a/hub/imports/geometry_factory.py b/hub/imports/geometry_factory.py
index fed3c30e..d64a07c6 100644
--- a/hub/imports/geometry_factory.py
+++ b/hub/imports/geometry_factory.py
@@ -4,16 +4,15 @@ SPDX - License - Identifier: LGPL - 3.0 - or -later
 Copyright © 2022 Concordia CERC group
 Project Coder Guille Gutierrez guillermo.gutierrezmorote@concordia.ca
 """
-import logging
 import geopandas
 
 from hub.city_model_structure.city import City
+from hub.helpers.utils import validate_import_export_type
 from hub.imports.geometry.citygml import CityGml
+from hub.imports.geometry.geojson import Geojson
+from hub.imports.geometry.gpandas import GPandas
 from hub.imports.geometry.obj import Obj
 from hub.imports.geometry.rhino import Rhino
-from hub.imports.geometry.gpandas import GPandas
-from hub.imports.geometry.geojson import Geojson
-from hub.helpers.utils import validate_import_export_type
 
 
 class GeometryFactory:
@@ -29,11 +28,7 @@ class GeometryFactory:
                function_field=None,
                function_to_hub=None):
     self._file_type = '_' + file_type.lower()
-    class_funcs = validate_import_export_type(GeometryFactory)
-    if self._file_type not in class_funcs:
-      error_message = f"Wrong import type. Valid functions include {class_funcs}"
-      logging.error(error_message)
-      raise Exception(error_message)
+    validate_import_export_type(GeometryFactory, file_type)
     self._path = path
     self._data_frame = data_frame
     self._name_field = name_field
diff --git a/hub/imports/results_factory.py b/hub/imports/results_factory.py
index eb28d391..8903a02f 100644
--- a/hub/imports/results_factory.py
+++ b/hub/imports/results_factory.py
@@ -5,13 +5,12 @@ Copyright © 2022 Concordia CERC group
 Project Coder Guille Gutierrez guillermo.gutierrezmorote@concordia.ca
 Code contributors: Pilar Monsalvete Alvarez de Uribarri pilar.monsalvete@concordia.ca
 """
-import logging
 from pathlib import Path
 
 from hub.helpers.utils import validate_import_export_type
-from hub.imports.results.simplified_radiosity_algorithm import SimplifiedRadiosityAlgorithm
-from hub.imports.results.insel_monthly_energry_balance import InselMonthlyEnergyBalance
 from hub.imports.results.insel_heatpump_energy_demand import InselHeatPumpEnergyDemand
+from hub.imports.results.insel_monthly_energry_balance import InselMonthlyEnergyBalance
+from hub.imports.results.simplified_radiosity_algorithm import SimplifiedRadiosityAlgorithm
 
 
 class ResultFactory:
@@ -31,11 +30,7 @@ class ResultFactory:
     if base_path is None:
       base_path = Path(Path(__file__).parent.parent / 'data/results')
     self._handler = '_' + handler.lower().replace(' ', '_')
-    class_funcs = validate_import_export_type(ResultFactory)
-    if self._handler not in class_funcs:
-      error_message = f"Wrong import type [{self._handler}]. Valid functions include {class_funcs}"
-      logging.error(error_message)
-      raise Exception(error_message)
+    validate_import_export_type(ResultFactory, handler)
     self._city = city
     self._base_path = base_path
     self._hp_model = hp_model
diff --git a/hub/imports/usage_factory.py b/hub/imports/usage_factory.py
index ae1b9e3d..138a7e9f 100644
--- a/hub/imports/usage_factory.py
+++ b/hub/imports/usage_factory.py
@@ -6,10 +6,9 @@ Copyright © 2022 Concordia CERC group
 Project Coder Guille Gutierrez guillermo.gutierrezmorote@concordia.ca
 Code contributors: Pilar Monsalvete Alvarez de Uribarri pilar.monsalvete@concordia.ca
 """
-import logging
+from hub.helpers.utils import validate_import_export_type
 from hub.imports.usage.comnet_usage_parameters import ComnetUsageParameters
 from hub.imports.usage.nrcan_usage_parameters import NrcanUsageParameters
-from hub.helpers.utils import validate_import_export_type
 
 
 class UsageFactory:
@@ -17,12 +16,8 @@ class UsageFactory:
   UsageFactory class
   """
   def __init__(self, handler, city):
-    self._handler = '_' + handler.lower().replace(' ', '_')
-    class_funcs = validate_import_export_type(UsageFactory)
-    if self._handler not in class_funcs:
-      error_message = f"Wrong import type [{self._handler}]. Valid functions include {class_funcs}"
-      logging.error(error_message)
-      raise Exception(error_message)
+    self._handler = '_' + handler.lower()
+    validate_import_export_type(UsageFactory, handler)
     self._city = city
 
   def _comnet(self):
diff --git a/hub/imports/weather_factory.py b/hub/imports/weather_factory.py
index 1b8514ab..cac4b658 100644
--- a/hub/imports/weather_factory.py
+++ b/hub/imports/weather_factory.py
@@ -4,11 +4,11 @@ SPDX - License - Identifier: LGPL - 3.0 - or -later
 Copyright © 2022 Concordia CERC group
 Project Coder Pilar Monsalvete Alvarez de Uribarri pilar.monsalvete@concordia.ca
 """
-import logging
 from pathlib import Path
-from hub.imports.weather.xls_weather_parameters import XlsWeatherParameters
-from hub.imports.weather.epw_weather_parameters import EpwWeatherParameters
+
 from hub.helpers.utils import validate_import_export_type
+from hub.imports.weather.epw_weather_parameters import EpwWeatherParameters
+from hub.imports.weather.xls_weather_parameters import XlsWeatherParameters
 
 
 class WeatherFactory:
@@ -20,11 +20,7 @@ class WeatherFactory:
     if base_path is None:
       base_path = Path(Path(__file__).parent.parent / 'data/weather')
     self._handler = '_' + handler.lower().replace(' ', '_')
-    class_funcs = validate_import_export_type(WeatherFactory)
-    if self._handler not in class_funcs:
-      error_message = f"Wrong import type. Valid functions include {class_funcs}"
-      logging.error(error_message)
-      raise Exception(error_message)
+    validate_import_export_type(WeatherFactory, handler)
     self._city = city
     self._base_path = base_path
     self._file_name = file_name
diff --git a/hub/persistence/__init__.py b/hub/persistence/__init__.py
index 2053d2f1..c209c0cc 100644
--- a/hub/persistence/__init__.py
+++ b/hub/persistence/__init__.py
@@ -1,4 +1,3 @@
 """
 Persistence package
-"""
-
+"""
\ No newline at end of file
diff --git a/hub/persistence/db_control.py b/hub/persistence/db_control.py
index b6dd2fe5..83004ec4 100644
--- a/hub/persistence/db_control.py
+++ b/hub/persistence/db_control.py
@@ -28,9 +28,6 @@ class DBControl:
     self._city_object = CityObject(db_name=db_name, app_env=app_env, dotenv_path=dotenv_path)
     self._simulation_results = SimulationResults(db_name=db_name, dotenv_path=dotenv_path, app_env=app_env)
 
-  @property
-  def identity(self):
-    return self._identity
   def application_info(self, application_uuid) -> Application:
     """
     Retrieve the application info for the given uuid
@@ -120,7 +117,6 @@ class DBControl:
     return identity_id
     """
     self._city_repository.insert(city, pickle_path, application_id, user_id)
-    return
 
   def update_city(self, city_id, city):
     """
diff --git a/hub/unittests/test_city_merge.py b/hub/unittests/test_city_merge.py
index fccb0873..f43f7684 100644
--- a/hub/unittests/test_city_merge.py
+++ b/hub/unittests/test_city_merge.py
@@ -49,7 +49,7 @@ class TestCityMerge(TestCase):
     city_two.name = 'New_York'
     city_two.climate_file = self._climate_file
     try:
-      ExportsFactory(export_type='sra', city=city_two, path=self._output_path, weather_file=self._weather_file,
+      ExportsFactory(handler='sra', city=city_two, path=self._output_path, weather_file=self._weather_file,
                      target_buildings=city_two.buildings, weather_format='epw').export()
       subprocess.run([self._executable, f'{str(self._output_path)}/{city_two.name}_sra.xml'], stdout=subprocess.DEVNULL)
     except (SubprocessError, TimeoutExpired, CalledProcessError) as error:
diff --git a/hub/unittests/test_energy_systems_air_source_hp.py b/hub/unittests/test_energy_systems_air_source_hp.py
index 42524943..e4930953 100644
--- a/hub/unittests/test_energy_systems_air_source_hp.py
+++ b/hub/unittests/test_energy_systems_air_source_hp.py
@@ -41,7 +41,7 @@ class TestEnergySystemsFactory(TestCase):
     city_file = "tests_data/C40_Final.gml"
     self._output_path = "tests_data/as_user_output.csv"
     self._city = GeometryFactory('citygml', path=city_file).city
-    EnergySystemsFactory('air source hp', self._city).enrich()
+    EnergySystemsFactory('air_source_hp', self._city).enrich()
 
   def test_air_source_heat_pump_import(self):
     self.assertIsNotNone(self._city.energy_systems, 'City has energy systems')
@@ -50,14 +50,14 @@ class TestEnergySystemsFactory(TestCase):
     self.assertEqual(self._city.energy_systems[16].air_source_hp.model, '140')
 
   def test_air_source_series_heat_pump_export(self):
-    EnergySystemsExportFactory(city=self._city, user_input=user_input, hp_model='012',
+    EnergySystemsExportFactory(city=self._city, handler=user_input, hp_model='012',
                                output_path=self._output_path).export()
     df = pd.read_csv(self._output_path)
     self.assertEqual(df.shape, (13, 3))
     self.assertEqual(df.iloc[0, 1], 1867715.88)
 
   def test_air_source_parallel_heat_pump_export(self):
-    output = EnergySystemsExportFactory(city=self._city, user_input=user_input, hp_model='018',
+    output = EnergySystemsExportFactory(city=self._city, handler=user_input, hp_model='018',
                                         output_path=None, sim_type=1).export()
     self.assertEqual(output["hourly_electricity_demand"][0], 38748.5625)
     self.assertIsNotNone(output["daily_fossil_consumption"])
diff --git a/hub/unittests/test_energy_systems_water_to_water_hp.py b/hub/unittests/test_energy_systems_water_to_water_hp.py
index 2fed16df..084f0c59 100644
--- a/hub/unittests/test_energy_systems_water_to_water_hp.py
+++ b/hub/unittests/test_energy_systems_water_to_water_hp.py
@@ -27,7 +27,7 @@ class TestEnergySystemsFactory(TestCase):
     city_file = "tests_data/C40_Final.gml"
     self._output_path = "tests_data/w2w_user_output.csv"
     self._city = GeometryFactory('citygml', path=city_file).city
-    EnergySystemsFactory('water to water hp', self._city).enrich()
+    EnergySystemsFactory('water_to_water_hp', self._city).enrich()
 
   def test_water_to_water_heat_pump_import(self):
     self.assertIsNotNone(self._city.energy_systems, 'City has energy systems')
@@ -62,7 +62,7 @@ class TestEnergySystemsFactory(TestCase):
       'b11': 10
     }
 
-    EnergySystemsExportFactory(city=self._city, user_input=user_input, hp_model='ClimateMaster 256 kW',
+    EnergySystemsExportFactory(city=self._city, handler=user_input, hp_model='ClimateMaster 256 kW',
                                output_path=self._output_path, sim_type=1).export('water')
     df = pd.read_csv(self._output_path)
     self.assertEqual(df.shape, (13, 3))
diff --git a/hub/unittests/test_heat_pump_results.py b/hub/unittests/test_heat_pump_results.py
index 07f8cb0a..75c8b3df 100644
--- a/hub/unittests/test_heat_pump_results.py
+++ b/hub/unittests/test_heat_pump_results.py
@@ -41,12 +41,12 @@ class TestHeatPumpResults(TestCase):
     city_file = "tests_data/C40_Final.gml"
     self._output_path = "tests_data/as_user_output.csv"
     self._city = GeometryFactory('citygml', path=city_file).city
-    EnergySystemsFactory('air source hp', self._city).enrich()
+    EnergySystemsFactory('air_source_hp', self._city).enrich()
 
   def test_air_source_series_heat_pump_012_results(self):
-    EnergySystemsExportFactory(city=self._city, user_input=user_input, hp_model='012',
+    EnergySystemsExportFactory(city=self._city, handler=user_input, hp_model='012',
                                output_path=self._output_path).export()
-    ResultFactory('heat pump', self._city, self._output_path, '012').enrich()
+    ResultFactory('heat_pump', self._city, self._output_path, '012').enrich()
 
     for energy_system in self._city.energy_systems:
       self.assertIsNone(energy_system.water_to_water_hp)
@@ -56,9 +56,9 @@ class TestHeatPumpResults(TestCase):
         self.assertEqual(energy_system.air_source_hp.hp_monthly_fossil_consumption.iloc[12], 35.853598782915)
 
   def test_air_source_series_heat_pump_015_results(self):
-    EnergySystemsExportFactory(city=self._city, user_input=user_input, hp_model='140',
+    EnergySystemsExportFactory(city=self._city, handler=user_input, hp_model='140',
                                output_path=self._output_path).export()
-    ResultFactory('heat pump', self._city, self._output_path, '140').enrich()
+    ResultFactory('heat_pump', self._city, self._output_path, '140').enrich()
 
     for energy_system in self._city.energy_systems:
       self.assertIsNone(energy_system.water_to_water_hp)