file dump

.gitignore

@@ -1,13 +1 @@
-.idea
-*.idf
-*.bnd
-*.eio
-*.end
-*.err
-*.eso
-*.expidf
-*.mtr
-*.rvaudit
-*.shd
-*.csv
-*.htm
+.idea

DistrictHeatingNetworkCreator.py

@@ -0,0 +1,187 @@
+import json
+import geopandas as gpd
+import matplotlib.pyplot as plt
+from shapely.geometry import Polygon, Point, LineString, MultiPoint
+import networkx as nx
+from scipy.spatial import cKDTree
+import hub.helpers.constants as cte
+
+
+class DistrictHeatingNetworkCreator:
+    def __init__(self, buildings_file, roads_file, central_plant_longitude, central_plant_latitude):
+        self.buildings_file = buildings_file
+        self.roads_file = roads_file
+        self.central_plant_longitude = central_plant_longitude
+        self.central_plant_latitude = central_plant_latitude
+
+    def run(self):
+        self._load_and_process_data()
+        self._find_nearest_roads()
+        self._process_intersections()
+        network_graph = self._create_network_graph()
+        return network_graph
+
+    def _load_and_process_data(self):
+        self.gdf_road = gpd.read_file(self.roads_file)
+        with open(self.buildings_file, 'r') as file:
+            city = json.load(file)
+
+        centroids = []
+        building_ids = []
+        for building in city['features']:
+            coordinates = building['geometry']['coordinates'][0]
+            building_polygon = Polygon(coordinates)
+            centroid = building_polygon.centroid
+            centroids.append(centroid)
+            building_ids.append(building['id'])
+
+        centroids.append(Point(self.central_plant_longitude, self.central_plant_latitude))
+        building_ids.append(1)
+
+        self.centroids_gdf = gpd.GeoDataFrame({
+            'geometry': [Point(centroid.x, centroid.y) for centroid in centroids],
+            'building_id': building_ids,
+            'type': ['centroid' for _ in centroids]
+        }, crs='EPSG:4326')
+
+    def _find_nearest_roads(self):
+        self.centroids_gdf = self.centroids_gdf.to_crs(self.gdf_road.crs)
+        self.gdf_clean = gpd.GeoDataFrame(
+            {'geometry': [LineString([coord for coord in line.coords]) for line in self.gdf_road.geometry]})
+
+        self.closest_linestrings = []
+        self.nearest_points = []
+        for centroid in self.centroids_gdf.geometry:
+            closest_road = min(self.gdf_clean.geometry, key=lambda x: x.distance(centroid))
+            self.closest_linestrings.append(closest_road)
+            nearest_point = closest_road.interpolate(closest_road.project(centroid))
+            self.nearest_points.append(nearest_point)
+
+    def _process_intersections(self):
+        self.gdf_pts = gpd.GeoDataFrame(
+            {'geometry': [Point(coord) for line in self.gdf_clean.geometry for coord in line.coords]})
+        self.gdf_pts2 = gpd.GeoDataFrame({'geometry': self.nearest_points})
+
+        self.gdf_pts3 = gpd.GeoDataFrame({'geometry': self.nearest_points + list(self.gdf_pts.geometry)})
+
+        intersects = []
+        for geom in self.gdf_clean.geometry:
+            intersecting_points = []
+            if geom is not None:
+                for y in range(len(self.gdf_pts2)):
+                    point_geom = self.gdf_pts2.geometry[y]
+                    if point_geom is not None and point_geom.distance(geom) <= 1.0:
+                        intersecting_points.append(y)
+            intersects.append(intersecting_points)
+
+        self.gdf_clean["intersect"] = intersects
+        self.gdf_cleaner = self.gdf_clean[self.gdf_clean["intersect"].apply(len).gt(0)].reset_index(drop=True)
+
+        self.test_list = []
+        for idx, row in self.gdf_cleaner.iterrows():
+            for i in range(len(row["intersect"]) + 1):
+                if i == 0:
+                    self.test_list.append(
+                        LineString([row['geometry'].coords[0], self.gdf_pts3.geometry[row['intersect'][i]]]))
+                elif i < len(row['intersect']):
+                    self.test_list.append(LineString(
+                        [self.gdf_pts3.geometry[row['intersect'][i - 1]], self.gdf_pts3.geometry[row['intersect'][i]]]))
+                else:
+                    self.test_list.append(
+                        LineString([self.gdf_pts3.geometry[row['intersect'][i - 1]], row['geometry'].coords[-1]]))
+
+        self.gdf_cleanest = gpd.GeoDataFrame({'geometry': self.test_list})
+
+        points = [coord for geom in self.gdf_cleanest.geometry for coord in geom.coords]
+        gdf_pts_cnt = self.gdf_pts.copy()
+        gdf_pts_cnt["count"] = gdf_pts_cnt.geometry.apply(lambda x: points.count(x.coords[0]))
+        gdf_pts_reset = gdf_pts_cnt[gdf_pts_cnt["count"] > 1].reset_index(drop=True)
+        gdf_pts_drop = gdf_pts_cnt[gdf_pts_cnt["count"] <= 1].reset_index(drop=True)
+
+        for idx, geom in self.gdf_cleanest.iterrows():
+            for coord in geom.geometry.coords:
+                if coord in [pt.coords[0] for pt in gdf_pts_drop.geometry]:
+                    self.gdf_cleanest = self.gdf_cleanest.drop(idx)
+
+        self.gdf_cleanest.reset_index(drop=True, inplace=True)
+
+    def _create_network_graph(self):
+        g = nx.Graph()
+
+        # Add nodes with geometry attribute
+        for idx, row in self.centroids_gdf.iterrows():
+            building_name = f"Building_{idx}"
+            g.add_node((row.geometry.x, row.geometry.y),
+                       geometry=row.geometry,  # Include geometry attribute
+                       type='centroid',
+                       name=building_name,
+                       building_id=str(row.get('building_id')))
+
+        for point in self.nearest_points:
+            g.add_node((point.x, point.y),
+                       geometry=point,  # Include geometry attribute
+                       type='nearest_point')
+
+        for line in self.gdf_cleanest.geometry:
+            length = line.length
+            if isinstance(line.boundary, MultiPoint):
+                points = list(line.boundary.geoms)
+                for i in range(len(points) - 1):
+                    start_point = points[i]
+                    end_point = points[i + 1]
+                    g.add_edge((start_point.x, start_point.y), (end_point.x, end_point.y), weight=length)
+            else:
+                start_point, end_point = line.boundary
+                g.add_edge((start_point.x, start_point.y), (end_point.x, end_point.y), weight=length)
+
+        for point, centroid in zip(self.nearest_points, self.centroids_gdf.geometry):
+            distance = point.distance(centroid)
+            g.add_edge((point.x, point.y), (centroid.x, centroid.y), weight=distance)
+
+        # Check and connect isolated components
+        components = list(nx.connected_components(g))
+        if len(components) > 1:
+            components.sort(key=len)
+            main_component = components[-1]
+            for comp in components[:-1]:
+                self._connect_component_to_main(g, comp, main_component)
+
+        return g
+
+    def _connect_component_to_main(self, graph, component, main_component):
+        main_component_nodes = [graph.nodes[node] for node in main_component if 'geometry' in graph.nodes[node]]
+
+        # Create cKDTree for efficient nearest neighbor search
+        tree = cKDTree([(node['geometry'].x, node['geometry'].y) for node in main_component_nodes])
+
+        # For each node in the component, find the closest street node in the main component
+        for node in component:
+            if 'geometry' in graph.nodes[node]:  # Check for geometry attribute
+                node_geometry = graph.nodes[node]['geometry']
+                distance, idx = tree.query((node_geometry.x, node_geometry.y))
+                closest_node_geometry = main_component_nodes[idx]['geometry']
+
+                # Add edge to the graph
+                graph.add_edge((node_geometry.x, node_geometry.y),
+                               (closest_node_geometry.x, closest_node_geometry.y), weight=distance)
+
+
+def plot_network_graph(network_graph, central_plant_id=1):
+    plt.figure(figsize=(12, 12))
+    pos = {node: (node[0], node[1]) for node in network_graph.nodes()}
+
+    # Node colors based on type
+    node_colors = ['red' if data.get('building_id') == str(central_plant_id) else 'green' if data.get(
+        'type') == 'centroid' else 'blue' for node, data in network_graph.nodes(data=True)]
+
+    # Node sizes, larger for central plant
+    node_sizes = [100 if data.get('building_id') == str(central_plant_id) else 50 for node, data in
+                  network_graph.nodes(data=True)]
+
+    nx.draw_networkx_nodes(network_graph, pos, node_color=node_colors, node_size=node_sizes)
+    nx.draw_networkx_edges(network_graph, pos, edge_color='gray', width=1)
+
+    plt.title('District Heating Network Graph')
+    plt.axis('off')
+    plt.savefig('network_graph_visualization.png', format='png', dpi=300)  # Save as PNG with high dpi for clarity
+    plt.show()

ThermalModeling.py

@@ -0,0 +1,76 @@
+import networkx as nx
+import numpy as np
+
+class ThermalModeling:
+    def __init__(self, graph, T_initial=70, Tg=3, cp=4200, rho=980, U=500, dx=20, delta_t=60):
+        """
+        Initialize the ThermalModeling class with a networkx graph.
+
+        :param graph: A directed networkx graph where edges have 'length', 'diameter', and 'mass_flow_rate_actual'.
+        :param T_initial: Initial temperature at each node in Celsius.
+        :param Tg: Ground temperature in Celsius.
+        :param cp: Isobaric specific heat capacity of water at 60 C in J/(kg*K).
+        :param rho: Density of water in kg/m3.
+        :param U: Heat transfer coefficient for all pipes.
+        :param dx: Number of segments for calculating temperature drops in a pipe.
+        :param delta_t: Time step for the calculation.
+        """
+        self.graph = graph
+        self.T_initial = T_initial
+        self.Tg = Tg
+        self.cp = cp
+        self.rho = rho
+        self.U = U
+        self.dx = dx
+        self.delta_t = delta_t
+
+        # Initialize node temperatures and flow rates
+        for node in self.graph.nodes():
+            self.graph.nodes[node]['temperature'] = T_initial
+            self.graph.nodes[node]['total_mass_flow_in'] = 0
+            self.graph.nodes[node]['weighted_temp_sum'] = 0
+
+    def adjust_flow_directions(self):
+        """
+        Adjust the directions of flow based on the mass flow rate. If the mass flow rate is negative,
+        the direction of the flow is reversed.
+        """
+        to_reverse = [(u, v) for u, v, d in self.graph.edges(data=True) if d['mass_flow_rate_actual'] < 0]
+        for u, v in to_reverse:
+            attrs = self.graph.edges[u, v]
+            self.graph.remove_edge(u, v)
+            self.graph.add_edge(v, u, **attrs)
+            # Update the mass flow rate to be positive after reversing
+            self.graph.edges[v, u]['mass_flow_rate_actual'] = abs(attrs['mass_flow_rate_actual'])
+
+    def calculate_temperatures(self):
+        """
+        Calculate and update temperatures for all nodes based on the network graph, considering weighted averages
+        for nodes with multiple incoming temperatures.
+        """
+        self.adjust_flow_directions()  # Adjust flow directions based on mass flow rates
+
+        # Calculate weighted temperatures for incoming flows
+        for u, v, d in self.graph.edges(data=True):
+            length = d['weight']
+            diameter = d['Diameter']
+            A = np.pi * diameter**2 / 4
+            delta_x = length / self.dx
+            mass_flow_rate = abs(d['mass_flow_rate_actual'])
+
+            C1 = 2 * self.delta_t * self.U / (A * self.rho * self.cp)
+            C2 = 2 * mass_flow_rate * self.delta_t / (self.rho * A * delta_x)
+            C = 1 / (1 + C1 + C2)
+
+            T_in = self.graph.nodes[u]['temperature']
+            T_out = C * (T_in + C1 * self.Tg)  # Simplified model for demonstration
+
+            # Update weighted temperature sum and total mass flow for the target node
+            self.graph.nodes[v]['total_mass_flow_in'] += mass_flow_rate
+            self.graph.nodes[v]['weighted_temp_sum'] += T_out * mass_flow_rate
+
+        # Calculate final temperatures based on weighted averages
+        for node in self.graph.nodes():
+            if self.graph.nodes[node]['total_mass_flow_in'] > 0:  # To avoid division by zero
+                weighted_average_temp = self.graph.nodes[node]['weighted_temp_sum'] / self.graph.nodes[node]['total_mass_flow_in']
+                self.graph.nodes[node]['temperature'] = weighted_average_temp

enrich.py

@@ -0,0 +1,16 @@
+def enrich(graph, city):
+    """
+    Enrich the graph nodes with hourly building demand data.
+
+    :param graph: The networkx graph of the district heating network.
+    :param buildings: A list of building objects, each with a 'name' and 'heating_demand' attribute.
+    """
+    for node in graph.nodes:
+        node_data = graph.nodes[node]
+        # Check if the node has a 'building_id' attribute before comparing
+        if 'building_id' in node_data:
+            for building in city.buildings:
+                if node_data['building_id'] == building.name:
+                    # Assuming `building.heating_demand` is properly structured for direct assignment
+                    graph.nodes[node]["Demand"] = building.heating_demand[cte.HOUR]
+                    graph.nodes[node]["Demand"] = building.heating_peak_load[cte.YEAR]

hub/catalog_factories/data_models/energy_systems/electrical_storage_system.py

@@ -14,12 +14,12 @@ class ElectricalStorageSystem(EnergyStorageSystem):
   Energy Storage System Class
   """
 
-  def __init__(self, storage_id, type_energy_stored=None, model_name=None, manufacturer=None, storage_type=None,
+  def __init__(self, storage_id, model_name=None, manufacturer=None, storage_type=None,
                nominal_capacity=None, losses_ratio=None, rated_output_power=None, nominal_efficiency=None,
                battery_voltage=None, depth_of_discharge=None, self_discharge_rate=None):
 
     super().__init__(storage_id, model_name, manufacturer, nominal_capacity, losses_ratio)
-    self._type_energy_stored = type_energy_stored
+    self._type_energy_stored = 'electrical'
     self._storage_type = storage_type
     self._rated_output_power = rated_output_power
     self._nominal_efficiency = nominal_efficiency

hub/catalog_factories/data_models/energy_systems/non_pv_generation_system.py

@@ -25,7 +25,7 @@ class NonPvGenerationSystem(GenerationSystem):
                maximum_cooling_supply_temperature=None, minimum_cooling_supply_temperature=None, heat_output_curve=None,
                heat_fuel_consumption_curve=None, heat_efficiency_curve=None, cooling_output_curve=None,
                cooling_fuel_consumption_curve=None, cooling_efficiency_curve=None,
-               distribution_systems=None, energy_storage_systems=None, dual_supply_capability=False):
+               distribution_systems=None, energy_storage_systems=None):
     super().__init__(system_id=system_id, name=name, model_name=model_name, manufacturer=manufacturer, fuel_type=fuel_type,
                      distribution_systems=distribution_systems, energy_storage_systems=energy_storage_systems)
     self._system_type = system_type
@@ -53,7 +53,6 @@ class NonPvGenerationSystem(GenerationSystem):
     self._cooling_output_curve = cooling_output_curve
     self._cooling_fuel_consumption_curve = cooling_fuel_consumption_curve
     self._cooling_efficiency_curve = cooling_efficiency_curve
-    self._dual_supply_capability = dual_supply_capability
 
   @property
   def system_type(self):
@@ -255,14 +254,6 @@ class NonPvGenerationSystem(GenerationSystem):
     """
     return self._cooling_efficiency_curve
 
-  @property
-  def dual_supply_capability(self):
-    """
-    Get dual supply capability
-    :return: bool
-    """
-    return self._dual_supply_capability
-
   def to_dictionary(self):
     """Class content to dictionary"""
     _distribution_systems = [_distribution_system.to_dictionary() for _distribution_system in
@@ -303,8 +294,7 @@ class NonPvGenerationSystem(GenerationSystem):
         'cooling fuel consumption curve': self.cooling_fuel_consumption_curve,
         'cooling efficiency curve': self.cooling_efficiency_curve,
         'distribution systems connected': _distribution_systems,
-        'storage systems connected': _energy_storage_systems,
-        'dual supply capability': self.dual_supply_capability
+        'storage systems connected': _energy_storage_systems
       }
     }
     return content

hub/catalog_factories/data_models/energy_systems/pv_generation_system.py

@@ -14,7 +14,7 @@ class PvGenerationSystem(GenerationSystem):
   Electricity Generation system class
   """
 
-  def __init__(self, system_id, name, system_type, model_name=None, manufacturer=None, electricity_efficiency=None,
+  def __init__(self, system_id, name, model_name=None, manufacturer=None, electricity_efficiency=None,
                nominal_electricity_output=None, nominal_ambient_temperature=None, nominal_cell_temperature=None,
                nominal_radiation=None, standard_test_condition_cell_temperature=None,
                standard_test_condition_maximum_power=None, cell_temperature_coefficient=None, width=None, height=None,
@@ -22,7 +22,7 @@ class PvGenerationSystem(GenerationSystem):
     super().__init__(system_id=system_id, name=name, model_name=model_name,
                      manufacturer=manufacturer, fuel_type='renewable', distribution_systems=distribution_systems,
                      energy_storage_systems=energy_storage_systems)
-    self._system_type = system_type
+    self._system_type = 'PV system'
     self._electricity_efficiency = electricity_efficiency
     self._nominal_electricity_output = nominal_electricity_output
     self._nominal_ambient_temperature = nominal_ambient_temperature

hub/catalog_factories/data_models/energy_systems/thermal_storage_system.py

@@ -15,12 +15,12 @@ class ThermalStorageSystem(EnergyStorageSystem):
   Energy Storage System Class
   """
 
-  def __init__(self, storage_id, type_energy_stored=None, model_name=None, manufacturer=None, storage_type=None,
+  def __init__(self, storage_id, model_name=None, manufacturer=None, storage_type=None,
                nominal_capacity=None, losses_ratio=None, volume=None, height=None, layers=None,
                maximum_operating_temperature=None, storage_medium=None):
 
     super().__init__(storage_id, model_name, manufacturer, nominal_capacity, losses_ratio)
-    self._type_energy_stored = type_energy_stored
+    self._type_energy_stored = 'thermal'
     self._storage_type = storage_type
     self._volume = volume
     self._height = height

hub/catalog_factories/energy_systems/montreal_custom_catalog.py

@@ -69,10 +69,8 @@ class MontrealCustomCatalog(Catalog):
           storage_system = ThermalStorageSystem(equipment_id)
         storage_systems = [storage_system]
       if model_name == 'PV system':
-        system_type = 'Photovoltaic'
         generation_system = PvGenerationSystem(equipment_id,
                                                name=None,
-                                               system_type=system_type,
                                                model_name=model_name,
                                                electricity_efficiency=electricity_efficiency,
                                                energy_storage_systems=storage_systems
@@ -86,9 +84,8 @@ class MontrealCustomCatalog(Catalog):
                                                   heat_efficiency=heating_efficiency,
                                                   cooling_efficiency=cooling_efficiency,
                                                   electricity_efficiency=electricity_efficiency,
-                                                  energy_storage_systems=storage_systems,
-                                                  dual_supply_capability=False
-                                                  )
+                                                  energy_storage_systems=storage_systems
+                                                    )
       _equipments.append(generation_system)
 
     return _equipments

hub/catalog_factories/energy_systems/montreal_future_system_catalogue.py

@@ -1,539 +0,0 @@
-"""
-Montreal future energy system catalog
-SPDX - License - Identifier: LGPL - 3.0 - or -later
-Copyright © 2022 Concordia CERC group
-Project Coder Saeed Ranjbar saeed.ranjbar@concordia.ca
-"""
-
-import xmltodict
-from pathlib import Path
-from hub.catalog_factories.catalog import Catalog
-from hub.catalog_factories.data_models.energy_systems.distribution_system import DistributionSystem
-from hub.catalog_factories.data_models.energy_systems.emission_system import EmissionSystem
-from hub.catalog_factories.data_models.energy_systems.system import System
-from hub.catalog_factories.data_models.energy_systems.content import Content
-from hub.catalog_factories.data_models.energy_systems.non_pv_generation_system import NonPvGenerationSystem
-from hub.catalog_factories.data_models.energy_systems.pv_generation_system import PvGenerationSystem
-from hub.catalog_factories.data_models.energy_systems.thermal_storage_system import ThermalStorageSystem
-from hub.catalog_factories.data_models.energy_systems.performance_curves import PerformanceCurves
-from hub.catalog_factories.data_models.energy_systems.archetype import Archetype
-from hub.catalog_factories.data_models.construction.material import Material
-from hub.catalog_factories.data_models.construction.layer import Layer
-
-
-class MontrealFutureSystemCatalogue(Catalog):
-  """
-  North america energy system catalog class
-  """
-
-  def __init__(self, path):
-    path = str(path / 'montreal_future_systems.xml')
-    with open(path, 'r', encoding='utf-8') as xml:
-      self._archetypes = xmltodict.parse(xml.read(),
-                                         force_list=['pv_generation_component', 'templateStorages', 'demand'])
-
-    self._storage_components = self._load_storage_components()
-    self._generation_components = self._load_generation_components()
-    self._energy_emission_components = self._load_emission_equipments()
-    self._distribution_components = self._load_distribution_equipments()
-    self._systems = self._load_systems()
-    self._system_archetypes = self._load_archetypes()
-    self._content = Content(self._system_archetypes,
-                            self._systems,
-                            generations=self._generation_components,
-                            distributions=self._distribution_components)
-
-  def _load_generation_components(self):
-    generation_components = []
-    non_pv_generation_components = self._archetypes['EnergySystemCatalog']['energy_generation_components'][
-      'non_pv_generation_component']
-    if non_pv_generation_components is not None:
-      for non_pv in non_pv_generation_components:
-        system_id = non_pv['system_id']
-        name = non_pv['name']
-        system_type = non_pv['system_type']
-        model_name = non_pv['model_name']
-        manufacturer = non_pv['manufacturer']
-        fuel_type = non_pv['fuel_type']
-        distribution_systems = non_pv['distribution_systems']
-        energy_storage_systems = None
-        if non_pv['energy_storage_systems'] is not None:
-          storage_component = non_pv['energy_storage_systems']['storage_id']
-          storage_systems = self._search_storage_equipment(self._load_storage_components(), storage_component)
-          energy_storage_systems = storage_systems
-        nominal_heat_output = non_pv['nominal_heat_output']
-        maximum_heat_output = non_pv['maximum_heat_output']
-        minimum_heat_output = non_pv['minimum_heat_output']
-        source_medium = non_pv['source_medium']
-        supply_medium = non_pv['supply_medium']
-        heat_efficiency = non_pv['heat_efficiency']
-        nominal_cooling_output = non_pv['nominal_cooling_output']
-        maximum_cooling_output = non_pv['maximum_cooling_output']
-        minimum_cooling_output = non_pv['minimum_cooling_output']
-        cooling_efficiency = non_pv['cooling_efficiency']
-        electricity_efficiency = non_pv['electricity_efficiency']
-        source_temperature = non_pv['source_temperature']
-        source_mass_flow = non_pv['source_mass_flow']
-        nominal_electricity_output = non_pv['nominal_electricity_output']
-        maximum_heat_supply_temperature = non_pv['maximum_heat_supply_temperature']
-        minimum_heat_supply_temperature = non_pv['minimum_heat_supply_temperature']
-        maximum_cooling_supply_temperature = non_pv['maximum_cooling_supply_temperature']
-        minimum_cooling_supply_temperature = non_pv['minimum_cooling_supply_temperature']
-        heat_output_curve = None
-        heat_fuel_consumption_curve = None
-        heat_efficiency_curve = None
-        cooling_output_curve = None
-        cooling_fuel_consumption_curve = None
-        cooling_efficiency_curve = None
-        if non_pv['heat_output_curve'] is not None:
-          curve_type = non_pv['heat_output_curve']['curve_type']
-          dependant_variable = non_pv['heat_output_curve']['dependant_variable']
-          parameters = non_pv['heat_output_curve']['parameters']
-          coefficients = list(non_pv['heat_output_curve']['coefficients'].values())
-          heat_output_curve = PerformanceCurves(curve_type, dependant_variable, parameters, coefficients)
-        if non_pv['heat_fuel_consumption_curve'] is not None:
-          curve_type = non_pv['heat_fuel_consumption_curve']['curve_type']
-          dependant_variable = non_pv['heat_fuel_consumption_curve']['dependant_variable']
-          parameters = non_pv['heat_fuel_consumption_curve']['parameters']
-          coefficients = list(non_pv['heat_fuel_consumption_curve']['coefficients'].values())
-          heat_fuel_consumption_curve = PerformanceCurves(curve_type, dependant_variable, parameters, coefficients)
-        if non_pv['heat_efficiency_curve'] is not None:
-          curve_type = non_pv['heat_efficiency_curve']['curve_type']
-          dependant_variable = non_pv['heat_efficiency_curve']['dependant_variable']
-          parameters = non_pv['heat_efficiency_curve']['parameters']
-          coefficients = list(non_pv['heat_efficiency_curve']['coefficients'].values())
-          heat_efficiency_curve = PerformanceCurves(curve_type, dependant_variable, parameters, coefficients)
-        if non_pv['cooling_output_curve'] is not None:
-          curve_type = non_pv['cooling_output_curve']['curve_type']
-          dependant_variable = non_pv['cooling_output_curve']['dependant_variable']
-          parameters = non_pv['cooling_output_curve']['parameters']
-          coefficients = list(non_pv['cooling_output_curve']['coefficients'].values())
-          cooling_output_curve = PerformanceCurves(curve_type, dependant_variable, parameters, coefficients)
-        if non_pv['cooling_fuel_consumption_curve'] is not None:
-          curve_type = non_pv['cooling_fuel_consumption_curve']['curve_type']
-          dependant_variable = non_pv['cooling_fuel_consumption_curve']['dependant_variable']
-          parameters = non_pv['cooling_fuel_consumption_curve']['parameters']
-          coefficients = list(non_pv['cooling_fuel_consumption_curve']['coefficients'].values())
-          cooling_fuel_consumption_curve = PerformanceCurves(curve_type, dependant_variable, parameters, coefficients)
-        if non_pv['cooling_efficiency_curve'] is not None:
-          curve_type = non_pv['cooling_efficiency_curve']['curve_type']
-          dependant_variable = non_pv['cooling_efficiency_curve']['dependant_variable']
-          parameters = non_pv['cooling_efficiency_curve']['parameters']
-          coefficients = list(non_pv['cooling_efficiency_curve']['coefficients'].values())
-          cooling_efficiency_curve = PerformanceCurves(curve_type, dependant_variable, parameters, coefficients)
-        dual_supply_capability = None
-        if non_pv['dual_supply_capability'] is not None:
-          if non_pv['dual_supply_capability'] == 'True':
-            dual_supply_capability = True
-          else:
-            dual_supply_capability = False
-
-        non_pv_component = NonPvGenerationSystem(system_id=system_id,
-                                                 name=name,
-                                                 system_type=system_type,
-                                                 model_name=model_name,
-                                                 manufacturer=manufacturer,
-                                                 fuel_type=fuel_type,
-                                                 nominal_heat_output=nominal_heat_output,
-                                                 maximum_heat_output=maximum_heat_output,
-                                                 minimum_heat_output=minimum_heat_output,
-                                                 source_medium=source_medium,
-                                                 supply_medium=supply_medium,
-                                                 heat_efficiency=heat_efficiency,
-                                                 nominal_cooling_output=nominal_cooling_output,
-                                                 maximum_cooling_output=maximum_cooling_output,
-                                                 minimum_cooling_output=minimum_cooling_output,
-                                                 cooling_efficiency=cooling_efficiency,
-                                                 electricity_efficiency=electricity_efficiency,
-                                                 source_temperature=source_temperature,
-                                                 source_mass_flow=source_mass_flow,
-                                                 nominal_electricity_output=nominal_electricity_output,
-                                                 maximum_heat_supply_temperature=maximum_heat_supply_temperature,
-                                                 minimum_heat_supply_temperature=minimum_heat_supply_temperature,
-                                                 maximum_cooling_supply_temperature=maximum_cooling_supply_temperature,
-                                                 minimum_cooling_supply_temperature=minimum_cooling_supply_temperature,
-                                                 heat_output_curve=heat_output_curve,
-                                                 heat_fuel_consumption_curve=heat_fuel_consumption_curve,
-                                                 heat_efficiency_curve=heat_efficiency_curve,
-                                                 cooling_output_curve=cooling_output_curve,
-                                                 cooling_fuel_consumption_curve=cooling_fuel_consumption_curve,
-                                                 cooling_efficiency_curve=cooling_efficiency_curve,
-                                                 distribution_systems=distribution_systems,
-                                                 energy_storage_systems=energy_storage_systems,
-                                                 dual_supply_capability=dual_supply_capability)
-        generation_components.append(non_pv_component)
-    pv_generation_components = self._archetypes['EnergySystemCatalog']['energy_generation_components'][
-      'pv_generation_component']
-    if pv_generation_components is not None:
-      for pv in pv_generation_components:
-        system_id = pv['system_id']
-        name = pv['name']
-        system_type = pv['system_type']
-        model_name = pv['model_name']
-        manufacturer = pv['manufacturer']
-        electricity_efficiency = pv['electricity_efficiency']
-        nominal_electricity_output = pv['nominal_electricity_output']
-        nominal_ambient_temperature = pv['nominal_ambient_temperature']
-        nominal_cell_temperature = pv['nominal_cell_temperature']
-        nominal_radiation = pv['nominal_radiation']
-        standard_test_condition_cell_temperature = pv['standard_test_condition_cell_temperature']
-        standard_test_condition_maximum_power = pv['standard_test_condition_maximum_power']
-        cell_temperature_coefficient = pv['cell_temperature_coefficient']
-        width = pv['width']
-        height = pv['height']
-        distribution_systems = pv['distribution_systems']
-        energy_storage_systems = None
-        if pv['energy_storage_systems'] is not None:
-          storage_component = pv['energy_storage_systems']['storage_id']
-          storage_systems = self._search_storage_equipment(self._load_storage_components(), storage_component)
-          energy_storage_systems = storage_systems
-
-        pv_component = PvGenerationSystem(system_id=system_id,
-                                          name=name,
-                                          system_type=system_type,
-                                          model_name=model_name,
-                                          manufacturer=manufacturer,
-                                          electricity_efficiency=electricity_efficiency,
-                                          nominal_electricity_output=nominal_electricity_output,
-                                          nominal_ambient_temperature=nominal_ambient_temperature,
-                                          nominal_cell_temperature=nominal_cell_temperature,
-                                          nominal_radiation=nominal_radiation,
-                                          standard_test_condition_cell_temperature=
-                                          standard_test_condition_cell_temperature,
-                                          standard_test_condition_maximum_power=standard_test_condition_maximum_power,
-                                          cell_temperature_coefficient=cell_temperature_coefficient,
-                                          width=width,
-                                          height=height,
-                                          distribution_systems=distribution_systems,
-                                          energy_storage_systems=energy_storage_systems)
-        generation_components.append(pv_component)
-
-    return generation_components
-
-  def _load_distribution_equipments(self):
-    _equipments = []
-    distribution_systems = self._archetypes['EnergySystemCatalog']['distribution_systems']['distribution_system']
-    if distribution_systems is not None:
-      for distribution_system in distribution_systems:
-        system_id = None
-        model_name = None
-        system_type = None
-        supply_temperature = None
-        distribution_consumption_fix_flow = None
-        distribution_consumption_variable_flow = None
-        heat_losses = None
-        generation_systems = None
-        energy_storage_systems = None
-        emission_systems = None
-        distribution_equipment = DistributionSystem(system_id=system_id,
-                                                    model_name=model_name,
-                                                    system_type=system_type,
-                                                    supply_temperature=supply_temperature,
-                                                    distribution_consumption_fix_flow=distribution_consumption_fix_flow,
-                                                    distribution_consumption_variable_flow=
-                                                    distribution_consumption_variable_flow,
-                                                    heat_losses=heat_losses,
-                                                    generation_systems=generation_systems,
-                                                    energy_storage_systems=energy_storage_systems,
-                                                    emission_systems=emission_systems
-                                                    )
-        _equipments.append(distribution_equipment)
-    return _equipments
-
-  def _load_emission_equipments(self):
-    _equipments = []
-    dissipation_systems = self._archetypes['EnergySystemCatalog']['dissipation_systems']['dissipation_system']
-    if dissipation_systems is not None:
-      for dissipation_system in dissipation_systems:
-        system_id = None
-        model_name = None
-        system_type = None
-        parasitic_energy_consumption = None
-        emission_system = EmissionSystem(system_id=system_id,
-                                         model_name=model_name,
-                                         system_type=system_type,
-                                         parasitic_energy_consumption=parasitic_energy_consumption)
-        _equipments.append(emission_system)
-    return _equipments
-
-  def _load_storage_components(self):
-    storage_components = []
-    thermal_storages = self._archetypes['EnergySystemCatalog']['energy_storage_components']['thermalStorages']
-    template_storages = self._archetypes['EnergySystemCatalog']['energy_storage_components']['templateStorages']
-    for tes in thermal_storages:
-      storage_id = tes['storage_id']
-      type_energy_stored = tes['type_energy_stored']
-      model_name = tes['model_name']
-      manufacturer = tes['manufacturer']
-      storage_type = tes['storage_type']
-      volume = tes['physical_characteristics']['volume']
-      height = tes['physical_characteristics']['height']
-      maximum_operating_temperature = tes['maximum_operating_temperature']
-      materials = self._load_materials()
-      insulation_material_id = tes['insulation']['material_id']
-      insulation_material = self._search_material(materials, insulation_material_id)
-      material_id = tes['physical_characteristics']['material_id']
-      tank_material = self._search_material(materials, material_id)
-      thickness = float(tes['insulation']['insulationThickness']) / 100  # from cm to m
-      insulation_layer = Layer(None, 'insulation', insulation_material, thickness)
-      thickness = float(tes['physical_characteristics']['tankThickness']) / 100  # from cm to m
-      tank_layer = Layer(None, 'tank', tank_material, thickness)
-      media = self._load_media()
-      media_id = tes['storage_medium']['medium_id']
-      medium = self._search_media(media, media_id)
-      layers = [insulation_layer, tank_layer]
-      nominal_capacity = tes['nominal_capacity']
-      losses_ratio = tes['losses_ratio']
-      storage_component = ThermalStorageSystem(storage_id=storage_id,
-                                               model_name=model_name,
-                                               type_energy_stored=type_energy_stored,
-                                               manufacturer=manufacturer,
-                                               storage_type=storage_type,
-                                               nominal_capacity=nominal_capacity,
-                                               losses_ratio=losses_ratio,
-                                               volume=volume,
-                                               height=height,
-                                               layers=layers,
-                                               maximum_operating_temperature=maximum_operating_temperature,
-                                               storage_medium=medium)
-      storage_components.append(storage_component)
-
-    for template in template_storages:
-      storage_id = template['storage_id']
-      storage_type = template['storage_type']
-      type_energy_stored = template['type_energy_stored']
-      maximum_operating_temperature = template['maximum_operating_temperature']
-      height = template['physical_characteristics']['height']
-      materials = self._load_materials()
-      insulation_material_id = template['insulation']['material_id']
-      insulation_material = self._search_material(materials, insulation_material_id)
-      material_id = template['physical_characteristics']['material_id']
-      tank_material = self._search_material(materials, material_id)
-      thickness = float(template['insulation']['insulationThickness']) / 100  # from cm to m
-      insulation_layer = Layer(None, 'insulation', insulation_material, thickness)
-      thickness = float(template['physical_characteristics']['tankThickness']) / 100  # from cm to m
-      tank_layer = Layer(None, 'tank', tank_material, thickness)
-      layers = [insulation_layer, tank_layer]
-      media = self._load_media()
-      media_id = template['storage_medium']['medium_id']
-      medium = self._search_media(media, media_id)
-      model_name = template['model_name']
-      manufacturer = template['manufacturer']
-      nominal_capacity = template['nominal_capacity']
-      losses_ratio = template['losses_ratio']
-      volume = template['physical_characteristics']['volume']
-      storage_component = ThermalStorageSystem(storage_id=storage_id,
-                                               model_name=model_name,
-                                               type_energy_stored=type_energy_stored,
-                                               manufacturer=manufacturer,
-                                               storage_type=storage_type,
-                                               nominal_capacity=nominal_capacity,
-                                               losses_ratio=losses_ratio,
-                                               volume=volume,
-                                               height=height,
-                                               layers=layers,
-                                               maximum_operating_temperature=maximum_operating_temperature,
-                                               storage_medium=medium)
-      storage_components.append(storage_component)
-    return storage_components
-
-  def _load_systems(self):
-    base_path = Path(Path(__file__).parent.parent.parent / 'data/energy_systems')
-    _catalog_systems = []
-    systems = self._archetypes['EnergySystemCatalog']['systems']['system']
-    for system in systems:
-      system_id = system['id']
-      name = system['name']
-      demands = system['demands']['demand']
-      generation_components = system['components']['generation_id']
-      generation_systems = self._search_generation_equipment(self._load_generation_components(), generation_components)
-      configuration_schema = Path(base_path / system['schema'])
-      energy_system = System(system_id=system_id,
-                             name=name,
-                             demand_types=demands,
-                             generation_systems=generation_systems,
-                             distribution_systems=None,
-                             configuration_schema=configuration_schema)
-      _catalog_systems.append(energy_system)
-    return _catalog_systems
-
-  def _load_archetypes(self):
-    _system_archetypes = []
-    system_clusters = self._archetypes['EnergySystemCatalog']['system_archetypes']['system_archetype']
-    for system_cluster in system_clusters:
-      name = system_cluster['name']
-      systems = system_cluster['systems']['system_id']
-      integer_system_ids = [int(item) for item in systems]
-      _systems = []
-      for system_archetype in self._systems:
-        if int(system_archetype.id) in integer_system_ids:
-          _systems.append(system_archetype)
-      _system_archetypes.append(Archetype(name=name, systems=_systems))
-    return _system_archetypes
-
-  def _load_materials(self):
-    materials = []
-    _materials = self._archetypes['EnergySystemCatalog']['materials']['material']
-    for _material in _materials:
-      material_id = _material['material_id']
-      name = _material['name']
-      conductivity = _material['conductivity']
-      solar_absorptance = _material['solar_absorptance']
-      thermal_absorptance = _material['thermal_absorptance']
-      density = _material['density']
-      specific_heat = _material['specific_heat']
-      no_mass = _material['no_mass']
-      visible_absorptance = _material['visible_absorptance']
-      thermal_resistance = _material['thermal_resistance']
-
-      material = Material(material_id,
-                          name,
-                          solar_absorptance=solar_absorptance,
-                          thermal_absorptance=thermal_absorptance,
-                          density=density,
-                          conductivity=conductivity,
-                          thermal_resistance=thermal_resistance,
-                          visible_absorptance=visible_absorptance,
-                          no_mass=no_mass,
-                          specific_heat=specific_heat)
-      materials.append(material)
-    return materials
-
-  @staticmethod
-  def _search_material(materials, material_id):
-    _material = None
-    for material in materials:
-      if int(material.id) == int(material_id):
-        _material = material
-        break
-    if _material is None:
-      raise ValueError(f'Material with the id = [{material_id}] not found in catalog ')
-    return _material
-
-  def _load_media(self):
-    media = []
-    _media = [self._archetypes['EnergySystemCatalog']['media']['medium']]
-    for _medium in _media:
-      medium_id = _medium['medium_id']
-      density = _medium['density']
-      name = _medium['name']
-      conductivity = _medium['conductivity']
-      solar_absorptance = _medium['solar_absorptance']
-      thermal_absorptance = _medium['thermal_absorptance']
-      specific_heat = _medium['specific_heat']
-      no_mass = _medium['no_mass']
-      visible_absorptance = _medium['visible_absorptance']
-      thermal_resistance = _medium['thermal_resistance']
-      medium = Material(material_id=medium_id,
-                        name=name,
-                        solar_absorptance=solar_absorptance,
-                        thermal_absorptance=thermal_absorptance,
-                        visible_absorptance=visible_absorptance,
-                        no_mass=no_mass,
-                        thermal_resistance=thermal_resistance,
-                        conductivity=conductivity,
-                        density=density,
-                        specific_heat=specific_heat)
-      media.append(medium)
-    return media
-
-  @staticmethod
-  def _search_media(media, medium_id):
-    _medium = None
-    for medium in media:
-      if int(medium.id) == int(medium_id):
-        _medium = medium
-        break
-    if _medium is None:
-      raise ValueError(f'media with the id = [{medium_id}] not found in catalog ')
-    return _medium
-
-  @staticmethod
-  def _search_generation_equipment(generation_systems, generation_id):
-    _generation_systems = []
-
-    if isinstance(generation_id, list):
-      integer_ids = [int(item) for item in generation_id]
-      for generation in generation_systems:
-        if int(generation.id) in integer_ids:
-          _generation_systems.append(generation)
-    else:
-      integer_id = int(generation_id)
-      for generation in generation_systems:
-        if int(generation.id) == integer_id:
-          _generation_systems.append(generation)
-
-    if len(_generation_systems) == 0:
-      _generation_systems = None
-      raise ValueError(f'The system with the following id is not found in catalog [{generation_id}]')
-    return _generation_systems
-
-  @staticmethod
-  def _search_storage_equipment(storage_systems, storage_id):
-    _storage_systems = []
-    for storage in storage_systems:
-      if storage.id in storage_id:
-        _storage_systems.append(storage)
-    if len(_storage_systems) == 0:
-      _storage_systems = None
-      raise ValueError(f'The system with the following id is not found in catalog [{storage_id}]')
-    return _storage_systems
-
-  def names(self, category=None):
-    """
-    Get the catalog elements names
-    :parm: optional category filter
-    """
-    if category is None:
-      _names = {'archetypes': [], 'systems': [], 'generation_equipments': [], 'storage_equipments': []}
-      for archetype in self._content.archetypes:
-        _names['archetypes'].append(archetype.name)
-      for system in self._content.systems:
-        _names['systems'].append(system.name)
-      for equipment in self._content.generation_equipments:
-        _names['generation_equipments'].append(equipment.name)
-    else:
-      _names = {category: []}
-      if category.lower() == 'archetypes':
-        for archetype in self._content.archetypes:
-          _names[category].append(archetype.name)
-      elif category.lower() == 'systems':
-        for system in self._content.systems:
-          _names[category].append(system.name)
-      elif category.lower() == 'generation_equipments':
-        for system in self._content.generation_equipments:
-          _names[category].append(system.name)
-      else:
-        raise ValueError(f'Unknown category [{category}]')
-    return _names
-
-  def entries(self, category=None):
-    """
-    Get the catalog elements
-    :parm: optional category filter
-    """
-    if category is None:
-      return self._content
-    if category.lower() == 'archetypes':
-      return self._content.archetypes
-    if category.lower() == 'systems':
-      return self._content.systems
-    if category.lower() == 'generation_equipments':
-      return self._content.generation_equipments
-    raise ValueError(f'Unknown category [{category}]')
-
-  def get_entry(self, name):
-    """
-    Get one catalog element by names
-    :parm: entry name
-    """
-    for entry in self._content.archetypes:
-      if entry.name.lower() == name.lower():
-        return entry
-    for entry in self._content.systems:
-      if entry.name.lower() == name.lower():
-        return entry
-    for entry in self._content.generation_equipments:
-      if entry.name.lower() == name.lower():
-        return entry
-    raise IndexError(f"{name} doesn't exists in the catalog")

hub/catalog_factories/energy_systems/north_america_energy_system_catalog.py

@@ -56,9 +56,6 @@ class NorthAmericaEnergySystemCatalog(Catalog):
       boiler_maximum_heat_output = float(boiler['@maximumHeatOutput'])
       boiler_minimum_heat_output = float(boiler['@minimumHeatOutput'])
       boiler_heat_efficiency = float(boiler['@nominalEfficiency'])
-      dual_supply = False
-      if '@dual_supply' in boiler.keys() and boiler['@dual_supply'] == 'True':
-        dual_supply = True
       boiler_component = NonPvGenerationSystem(boiler_id,
                                                name=name,
                                                system_type=system_type,
@@ -68,8 +65,7 @@ class NorthAmericaEnergySystemCatalog(Catalog):
                                                nominal_heat_output=boiler_nominal_thermal_output,
                                                maximum_heat_output=boiler_maximum_heat_output,
                                                minimum_heat_output=boiler_minimum_heat_output,
-                                               heat_efficiency=boiler_heat_efficiency,
-                                               dual_supply_capability=dual_supply)
+                                               heat_efficiency=boiler_heat_efficiency)
       generation_components.append(boiler_component)
     for heat_pump in heat_pumps:
       heat_pump_id = heat_pump['@generation_id']
@@ -93,9 +89,6 @@ class NorthAmericaEnergySystemCatalog(Catalog):
       parameters = heat_pump['performance_curve']['parameters']
       coefficients = list(heat_pump['performance_curve']['coefficients'].values())
       cop_curve = PerformanceCurves(cop_curve_type, dependant_variable, parameters, coefficients)
-      dual_supply = False
-      if '@dual_supply' in heat_pump.keys() and heat_pump['@dual_supply'] == 'True':
-        dual_supply = True
 
       heat_pump_component = NonPvGenerationSystem(heat_pump_id,
                                                   name=name,
@@ -113,8 +106,7 @@ class NorthAmericaEnergySystemCatalog(Catalog):
                                                   minimum_heat_supply_temperature=heat_pump_minimum_heat_supply_temperature,
                                                   maximum_cooling_supply_temperature=heat_pump_maximum_cooling_supply_temperature,
                                                   minimum_cooling_supply_temperature=heat_pump_minimum_cooling_supply_temperature,
-                                                  heat_efficiency_curve=cop_curve,
-                                                  dual_supply_capability=dual_supply)
+                                                  heat_efficiency_curve=cop_curve)
       generation_components.append(heat_pump_component)
     for pv in photovoltaics:
       pv_id = pv['@generation_id']
@@ -151,8 +143,6 @@ class NorthAmericaEnergySystemCatalog(Catalog):
     for template in templates:
       system_id = template['@generation_id']
       system_name = template['@name']
-      if '@dual_supply' in template.keys() and template['@dual_supply'] == 'True':
-        dual_supply = True
       if 'storage_id' in template.keys():
         storage_component = template['storage_id']
         storage_systems = self._search_storage_equipment(self._load_storage_components(), storage_component)
@@ -168,8 +158,7 @@ class NorthAmericaEnergySystemCatalog(Catalog):
                                                 system_type=system_type,
                                                 fuel_type=fuel_type,
                                                 heat_efficiency=heat_efficiency,
-                                                energy_storage_systems=energy_storage_system,
-                                                dual_supply_capability=dual_supply)
+                                                energy_storage_systems=energy_storage_system)
         generation_components.append(boiler_template)
       elif "Heat Pump" in system_name:
         system_type = 'heat pump'
@@ -184,8 +173,7 @@ class NorthAmericaEnergySystemCatalog(Catalog):
                                                    supply_medium=supply_medium,
                                                    fuel_type=fuel_type,
                                                    heat_efficiency=heat_efficiency,
-                                                   energy_storage_systems=energy_storage_system,
-                                                   dual_supply_capability=dual_supply)
+                                                   energy_storage_systems=energy_storage_system)
         generation_components.append(heat_pump_template)
       else:
         electricity_efficiency = float(template['@nominalEfficiency'])

hub/catalog_factories/energy_systems_catalog_factory.py

@@ -10,7 +10,6 @@ from typing import TypeVar
 
 from hub.catalog_factories.energy_systems.montreal_custom_catalog import MontrealCustomCatalog
 from hub.catalog_factories.energy_systems.north_america_energy_system_catalog import NorthAmericaEnergySystemCatalog
-from hub.catalog_factories.energy_systems.montreal_future_system_catalogue import MontrealFutureSystemCatalogue
 from hub.helpers.utils import validate_import_export_type
 
 Catalog = TypeVar('Catalog')
@@ -41,13 +40,6 @@ class EnergySystemsCatalogFactory:
     """
     return NorthAmericaEnergySystemCatalog(self._path)
 
-  @property
-  def _montreal_future(self):
-    """
-    Retrieve North American catalog
-    """
-    return MontrealFutureSystemCatalogue(self._path)
-
   @property
   def catalog(self) -> Catalog:
     """

hub/city_model_structure/building.py

@@ -762,16 +762,13 @@ class Building(CityObject):
         if demand_type.lower() == consumption_type.lower():
           if consumption_type in (cte.HEATING, cte.DOMESTIC_HOT_WATER):
             for generation_system in generation_systems:
-              if generation_system.heat_efficiency is not None:
-                coefficient_of_performance = float(generation_system.heat_efficiency)
+              coefficient_of_performance = generation_system.heat_efficiency
           elif consumption_type == cte.COOLING:
             for generation_system in generation_systems:
-              if generation_system.cooling_efficiency is not None:
-                coefficient_of_performance = float(generation_system.cooling_efficiency)
+              coefficient_of_performance = generation_system.cooling_efficiency
           elif consumption_type == cte.ELECTRICITY:
             for generation_system in generation_systems:
-              if generation_system.electricity_efficiency is not None:
-                coefficient_of_performance = float(generation_system.electricity_efficiency)
+              coefficient_of_performance = generation_system.electricity_efficiency
     if coefficient_of_performance == 0:
       values = [0]*len(demand)
       final_energy_consumed = values
@@ -802,22 +799,18 @@ class Building(CityObject):
     if self.energy_systems is None:
       return self._onsite_electrical_production
     for energy_system in self.energy_systems:
-      for generation_system in energy_system.generation_systems:
-        if generation_system.system_type == cte.PHOTOVOLTAIC:
-          if generation_system.electricity_efficiency is not None:
-            _efficiency = float(generation_system.electricity_efficiency)
-          else:
-            _efficiency = 0
-          self._onsite_electrical_production = {}
-          for _key in self.roofs[0].global_irradiance.keys():
-            _results = [0 for _ in range(0, len(self.roofs[0].global_irradiance[_key]))]
-            for surface in self.roofs:
-              if _key in orientation_losses_factor:
-                _results = [x + y * _efficiency * surface.perimeter_area
-                            * surface.solar_collectors_area_reduction_factor * z
-                            for x, y, z in zip(_results, surface.global_irradiance[_key],
-                                               orientation_losses_factor[_key]['south'])]
-            self._onsite_electrical_production[_key] = _results
+      if energy_system.generation_systems[0].system_type == cte.PHOTOVOLTAIC:
+        _efficiency = energy_system.generation_systems[0].electricity_efficiency
+        self._onsite_electrical_production = {}
+        for _key in self.roofs[0].global_irradiance.keys():
+          _results = [0 for _ in range(0, len(self.roofs[0].global_irradiance[_key]))]
+          for surface in self.roofs:
+            if _key in orientation_losses_factor:
+              _results = [x + y * _efficiency * surface.perimeter_area
+                          * surface.solar_collectors_area_reduction_factor * z
+                          for x, y, z in zip(_results, surface.global_irradiance[_key],
+                                             orientation_losses_factor[_key]['south'])]
+          self._onsite_electrical_production[_key] = _results
     return self._onsite_electrical_production
 
   @property