diff --git a/exports/energy_systems/__init__.py b/exports/energy_systems/__init__.py
deleted file mode 100644
index e69de29b..00000000
diff --git a/imports/construction_factory.py b/imports/construction_factory.py
index c315c455..e83ea7c8 100644
--- a/imports/construction_factory.py
+++ b/imports/construction_factory.py
@@ -22,6 +22,7 @@ class ConstructionFactory:
   def _nrel(self):
     """
     Enrich the city by using NREL information
+    :cat:
     """
     UsPhysicsParameters(self._city, self._base_path).enrich_buildings()
 
diff --git a/imports/geometry/rhino.py b/imports/geometry/rhino.py
index b9007ecb..53f21088 100644
--- a/imports/geometry/rhino.py
+++ b/imports/geometry/rhino.py
@@ -4,8 +4,10 @@ SPDX - License - Identifier: LGPL - 3.0 - or -later
 Copyright © 2020 Project Author Guille Gutierrez guillermo.gutierrezmorote@concordia.ca
 """
 from numpy import inf
-#from rhino3dm import *
-#from rhino3dm._rhino3dm import MeshType
+from rhino3dm import *
+from rhino3dm._rhino3dm import MeshType
+
+
 from city_model_structure.attributes.point import Point
 import numpy as np
 
diff --git a/imports/sensors_factory.py b/imports/sensors_factory.py
index 3060d1a2..98fbb809 100644
--- a/imports/sensors_factory.py
+++ b/imports/sensors_factory.py
@@ -5,9 +5,6 @@ Copyright © 2021 Project Author Guille Gutierrez guillermo.gutierrezmorote@conc
 Contributors Pilar Monsalvete Alvarez de Uribarri pilar.monsalvete@concordia.ca
 """
 from pathlib import Path
-from imports.sensors.concordia_energy_consumption import ConcordiaEnergyConsumption
-from imports.sensors.concordia_gas_flow import ConcordiaGasFlow
-from imports.sensors.concordia_temperature import ConcordiaTemperature
 
 
 class SensorsFactory:
@@ -26,19 +23,19 @@ class SensorsFactory:
     """
     Enrich the city by using concordia energy consumption sensors as data source
     """
-    ConcordiaEnergyConsumption(self._city, self._end_point, self._base_path)
+    raise NotImplementedError('need to be reimplemented')
 
   def _cgf(self):
     """
     Enrich the city by using concordia gas flow sensors as data source
     """
-    ConcordiaGasFlow(self._city, self._end_point, self._base_path)
+    raise NotImplementedError('need to be reimplemented')
 
   def _ct(self):
     """
     Enrich the city by using concordia temperature sensors as data source
     """
-    ConcordiaTemperature(self._city, self._end_point, self._base_path)
+    raise NotImplementedError('need to be reimplemented')
 
   def enrich(self):
     """