diff --git a/helpers/idf_helper.py b/helpers/idf_helper.py
index ee9ce579..d6353213 100644
--- a/helpers/idf_helper.py
+++ b/helpers/idf_helper.py
@@ -9,42 +9,42 @@ from pathlib import Path
 
 
 class IdfHelper:
-    
-    def __init__(self, idf_file_path, idd_file_path, epw_file_path, eso_file_path):
-        self._idd_file_path = str(idd_file_path)
-        self._idf_file_path = str(idf_file_path)
-        self._epw_file_path = str(epw_file_path)
-        self._eso_file_path = str(eso_file_path)
-        IDF.setiddname(self._idd_file_path)
-        self._idf = IDF(self._idf_file_path)
-        self._idf.epw = epw_file_path
-        self._eso_file_path = str((Path.cwd() / 'eplusout.eso').resolve())
-        
-    def add_zone(self, building_name):
-        IDF.newidfobject('ZONE', Name=building_name, Ceiling_Height='autocalculate', Volume='autocalculate',
-                               Floor_Area='autocalculate', Part_of_Total_Floor_Area='yes',)
-            
-    def add_surface(self, surface, building_name):
-        self._idf.newidfobject('BUILDINGSURFACE:DETAILED', Name=surface.name, Surface_Type=surface.type,
-                               Zone_Name=building_name,)
-        # Why is this thing here?
-        # self.wall.setcoords(surface.points_list.toList())
 
-    def run(self, window_ratio=0.35):
-        self._idf.set_default_constructions()
-        self._idf.intersect_match()
-        self._idf.set_wwr(window_ratio)
-        self._idf.translate_to_origin()
-        self._idf.view_model()
-        self._idf.newidfobject("HVACTEMPLATE:THERMOSTAT", Name="Zone Stat", Constant_Heating_Setpoint=20,
-                               Constant_Cooling_Setpoint=24,)
-        for zone in self._idf.idfobjects["ZONE"]:
-            self._idf.newidfobject("HVACTEMPLATE:ZONE:IDEALLOADSAIRSYSTEM", Zone_Name=zone.Name,
-                                   Template_Thermostat_Name='', Outdoor_Air_Method="DetailedSpecification",)
-        # Run
-        self._idf.run()
-        dd, data = esoreader.read(self._eso_file_path)
-        list_values = [v for v in data.values()]
-        heating = [(float(x)) / 3600000.0 for x in list_values[0]]
-        cooling = [(float(x)) / 3600000.0 for x in list_values[1]]
-        return heating, cooling
+  def __init__(self, idf_file_path, idd_file_path, epw_file_path, eso_file_path):
+    self._idd_file_path = str(idd_file_path)
+    self._idf_file_path = str(idf_file_path)
+    self._epw_file_path = str(epw_file_path)
+    self._eso_file_path = str(eso_file_path)
+    IDF.setiddname(self._idd_file_path)
+    self._idf = IDF(self._idf_file_path)
+    self._idf.epw = epw_file_path
+    self._eso_file_path = str((Path.cwd() / 'eplusout.eso').resolve())
+
+  def add_zone(self, building_name):
+    self._idf.newidfobject(key='ZONE', Name=building_name, Ceiling_Height='autocalculate', Volume='autocalculate',
+                     Floor_Area='autocalculate', Part_of_Total_Floor_Area='yes', )
+
+  def add_surface(self, surface, building_name):
+    self._idf.newidfobject('BUILDINGSURFACE:DETAILED', Name=surface.name, Surface_Type=surface.type,
+                           Zone_Name=building_name, )
+    # Why is this thing here?
+    # self.wall.setcoords(surface.points_list.toList())
+
+  def run(self, window_ratio=0.35):
+    self._idf.set_default_constructions()
+    self._idf.intersect_match()
+    self._idf.set_wwr(window_ratio)
+    self._idf.translate_to_origin()
+    self._idf.view_model()
+    self._idf.newidfobject("HVACTEMPLATE:THERMOSTAT", Name="Zone Stat", Constant_Heating_Setpoint=20,
+                           Constant_Cooling_Setpoint=24, )
+    for zone in self._idf.idfobjects["ZONE"]:
+      self._idf.newidfobject("HVACTEMPLATE:ZONE:IDEALLOADSAIRSYSTEM", Zone_Name=zone.Name,
+                             Template_Thermostat_Name='', Outdoor_Air_Method="DetailedSpecification", )
+    # Run
+    self._idf.run()
+    dd, data = esoreader.read(self._eso_file_path)
+    list_values = [v for v in data.values()]
+    heating = [(float(x)) / 3600000.0 for x in list_values[0]]
+    cooling = [(float(x)) / 3600000.0 for x in list_values[1]]
+    return heating, cooling