diff --git a/exports/exports_factory.py b/exports/exports_factory.py
index 06d90099..d2d214c3 100644
--- a/exports/exports_factory.py
+++ b/exports/exports_factory.py
@@ -16,10 +16,11 @@ class ExportsFactory:
   """
   Exports factory class
   """
-  def __init__(self, export_type, city, path):
+  def __init__(self, export_type, city, path, target_buildings=None):
     self._city = city
     self._export_type = '_' + export_type.lower()
     self._path = path
+    self._target_buildings = target_buildings
 
   @property
   def _citygml(self):
@@ -65,7 +66,7 @@ class ExportsFactory:
   def _idf(self):
     """
     Export the city to Energy+ idf format
-    :return:
+    :return: None
     """
     idf_data_path = (Path(__file__).parent / './formats/idf_files/').resolve()
     # todo: create a get epw file function based on the city
@@ -74,7 +75,12 @@ class ExportsFactory:
 
   @property
   def _sra(self):
-    return SimplifiedRadiosityAlgorithm(self._city, (self._path / f'{self._city.name}_sra.xml'))
+    """
+    Export the city to Simplified Radiosity Algorithm xml format
+    :return: None
+    """
+    return SimplifiedRadiosityAlgorithm(self._city, (self._path / f'{self._city.name}_sra.xml'),
+                                        target_buildings=self._target_buildings)
 
   def export(self):
     """
diff --git a/exports/formats/simplified_radiosity_algorithm.py b/exports/formats/simplified_radiosity_algorithm.py
index 11205f41..9f5d6104 100644
--- a/exports/formats/simplified_radiosity_algorithm.py
+++ b/exports/formats/simplified_radiosity_algorithm.py
@@ -10,13 +10,14 @@ class SimplifiedRadiosityAlgorithm:
   """
   Export to SRA format
   """
-  def __init__(self, city, file_name, begin_month=1, begin_day=1, end_month=12, end_day=31):
+  def __init__(self, city, file_name, target_buildings=None, begin_month=1, begin_day=1, end_month=12, end_day=31):
     self._file_name = file_name
     self._begin_month = begin_month
     self._begin_day = begin_day
     self._end_month = end_month
     self._end_day = end_day
     self._city = city
+    self._target_buildings = target_buildings
     self._export()
 
   def _correct_point(self, point):
@@ -26,15 +27,15 @@ class SimplifiedRadiosityAlgorithm:
     z = point[2] - self._city.lower_corner[2]
     return [x, y, z]
 
-  def _export(self, target_buildings_names=None):
+  def _export(self):
     buildings = []
     for building_index, building in enumerate(self._city.buildings):
-      if target_buildings_names is None:
+      if self._target_buildings is None:
         simulate = 'true'
       else:
         simulate = 'false'
-        for name in target_buildings_names:
-          if building.name == name:
+        for target_building in self._target_buildings:
+          if building.name == target_building.name:
             simulate = 'true'
       building_dict = {
         '@Name': f'{building.name}',