hub/catalog_factories/data_models/usages/domestic_hot_water.py

@@ -0,0 +1,45 @@
+"""
+Usage catalog domestic hot water
+SPDX - License - Identifier: LGPL - 3.0 - or -later
+Copyright © 2023 Concordia CERC group
+Project Coder Pilar Monsalvete Álvarez de Uribarri pilar.monsalvete@concordia.ca
+"""
+
+from typing import Union, List
+
+from hub.catalog_factories.data_models.usages.schedule import Schedule
+
+
+class DomesticHotWater:
+  """
+  DomesticHotWater class
+  """
+  def __init__(self, density, service_temperature, schedules):
+    self._density = density
+    self._service_temperature = service_temperature
+    self._schedules = schedules
+
+  @property
+  def density(self) -> Union[None, float]:
+    """
+    Get domestic hot water load density in Watts per m2
+    :return: None or float
+    """
+    return self._density
+
+  @property
+  def service_temperature(self) -> Union[None, float]:
+    """
+    Get service temperature in degrees Celsius
+    :return: None or float
+    """
+    return self._service_temperature
+
+  @property
+  def schedules(self) -> Union[None, List[Schedule]]:
+    """
+    Get schedules
+    dataType = fraction of loads
+    :return: None or [Schedule]
+    """
+    return self._schedules

hub/catalog_factories/data_models/usages/usage.py

@@ -10,6 +10,7 @@ from hub.catalog_factories.data_models.usages.appliances import Appliances
 from hub.catalog_factories.data_models.usages.lighting import Lighting
 from hub.catalog_factories.data_models.usages.ocupancy import Occupancy
 from hub.catalog_factories.data_models.usages.thermal_control import ThermalControl
+from hub.catalog_factories.data_models.usages.domestic_hot_water import DomesticHotWater
 
 
 class Usage:
@@ -21,7 +22,8 @@ class Usage:
                occupancy,
                lighting,
                appliances,
-               thermal_control):
+               thermal_control,
+               domestic_hot_water):
     self._name = name
     self._hours_day = hours_day
     self._days_year = days_year
@@ -32,6 +34,7 @@ class Usage:
     self._lighting = lighting
     self._appliances = appliances
     self._thermal_control = thermal_control
+    self._domestic_hot_water = domestic_hot_water
 
   @property
   def name(self) -> Union[None, str]:
@@ -108,7 +111,15 @@ class Usage:
   @property
   def thermal_control(self) -> Union[None, ThermalControl]:
     """
-    Get thermal control of this thermal zone
+    Get thermal control information
     :return: None or ThermalControl
     """
     return self._thermal_control
+
+  @property
+  def domestic_hot_water(self) -> Union[None, DomesticHotWater]:
+    """
+    Get domestic hot water information
+    :return: None or DomesticHotWater
+    """
+    return self._domestic_hot_water

hub/catalog_factories/energy_systems/nrcan_catalog.py

@@ -0,0 +1,189 @@
+"""
+NRCAN energy systems catalog
+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 json
+import urllib.request
+import xmltodict
+
+import hub.helpers.constants as cte
+from hub.catalog_factories.catalog import Catalog
+from hub.catalog_factories.data_models.usages.appliances import Appliances
+from hub.catalog_factories.data_models.usages.content import Content
+from hub.catalog_factories.data_models.usages.lighting import Lighting
+from hub.catalog_factories.data_models.usages.ocupancy import Occupancy
+from hub.catalog_factories.data_models.usages.schedule import Schedule
+from hub.catalog_factories.data_models.usages.thermal_control import ThermalControl
+from hub.catalog_factories.data_models.usages.usage import Usage
+from hub.catalog_factories.usage.usage_helper import UsageHelper
+
+
+class NrcanCatalog(Catalog):
+  def __init__(self, path):
+    path = str(path / 'nrcan.xml')
+    self._content = None
+    self._schedules = {}
+    with open(path) as xml:
+      self._metadata = xmltodict.parse(xml.read())
+    self._base_url = self._metadata['nrcan']['@base_url']
+    self._load_schedules()
+    self._content = Content(self._load_archetypes())
+
+  def _load_archetypes(self):
+    usages = []
+    name = self._metadata['nrcan']
+    url = f'{self._base_url}{name["space_types_location"]}'
+    with urllib.request.urlopen(url) as json_file:
+      space_types = json.load(json_file)['tables']['space_types']['table']
+#    space_types = [st for st in space_types if st['building_type'] == 'Space Function']
+    space_types = [st for st in space_types if st['space_type'] == 'WholeBuilding']
+    for space_type in space_types:
+#      usage_type = space_type['space_type']
+      usage_type = space_type['building_type']
+      occupancy_schedule_name = space_type['occupancy_schedule']
+      lighting_schedule_name = space_type['lighting_schedule']
+      appliance_schedule_name = space_type['electric_equipment_schedule']
+      hvac_schedule_name = space_type['exhaust_schedule']
+      if 'FAN' in hvac_schedule_name:
+        hvac_schedule_name = hvac_schedule_name.replace('FAN', 'Fan')
+      heating_setpoint_schedule_name = space_type['heating_setpoint_schedule']
+      cooling_setpoint_schedule_name = space_type['cooling_setpoint_schedule']
+      occupancy_schedule = self._get_schedules(occupancy_schedule_name)
+      lighting_schedule = self._get_schedules(lighting_schedule_name)
+      appliance_schedule = self._get_schedules(appliance_schedule_name)
+      heating_schedule = self._get_schedules(heating_setpoint_schedule_name)
+      cooling_schedule = self._get_schedules(cooling_setpoint_schedule_name)
+      hvac_availability = self._get_schedules(hvac_schedule_name)
+
+      occupancy_density = space_type['occupancy_per_area']
+
+      # ACH
+      mechanical_air_change = space_type['ventilation_air_changes']
+      # cfm/ft2 to m3/m2.s
+      ventilation_rate = space_type['ventilation_per_area'] / (cte.METERS_TO_FEET * cte.MINUTES_TO_SECONDS)
+      if ventilation_rate == 0:
+        # cfm/person to m3/m2.s
+        ventilation_rate = space_type['ventilation_per_person'] / occupancy_density\
+                           / (cte.METERS_TO_FEET * cte.MINUTES_TO_SECONDS)
+
+      # W/sqft to W/m2
+      lighting_density = space_type['lighting_per_area'] * cte.METERS_TO_FEET * cte.METERS_TO_FEET
+      lighting_radiative_fraction = space_type['lighting_fraction_radiant']
+      lighting_convective_fraction = 0
+      if lighting_radiative_fraction is not None:
+        lighting_convective_fraction = 1 - lighting_radiative_fraction
+      lighting_latent_fraction = 0
+      # W/sqft to W/m2
+      appliances_density = space_type['electric_equipment_per_area'] * cte.METERS_TO_FEET * cte.METERS_TO_FEET
+      appliances_radiative_fraction = space_type['electric_equipment_fraction_radiant']
+      appliances_latent_fraction = space_type['electric_equipment_fraction_latent']
+      appliances_convective_fraction = 0
+      if appliances_radiative_fraction is not None and appliances_latent_fraction is not None:
+        appliances_convective_fraction = 1 - appliances_radiative_fraction - appliances_latent_fraction
+
+      occupancy = Occupancy(occupancy_density,
+                            None,
+                            None,
+                            None,
+                            occupancy_schedule)
+      lighting = Lighting(lighting_density,
+                          lighting_convective_fraction,
+                          lighting_radiative_fraction,
+                          lighting_latent_fraction,
+                          lighting_schedule)
+      appliances = Appliances(appliances_density,
+                              appliances_convective_fraction,
+                              appliances_radiative_fraction,
+                              appliances_latent_fraction,
+                              appliance_schedule)
+      thermal_control = ThermalControl(None,
+                                       None,
+                                       None,
+                                       hvac_availability,
+                                       heating_schedule,
+                                       cooling_schedule)
+      hours_day = None
+      days_year = None
+      usages.append(Usage(usage_type,
+                          hours_day,
+                          days_year,
+                          mechanical_air_change,
+                          ventilation_rate,
+                          occupancy,
+                          lighting,
+                          appliances,
+                          thermal_control))
+    return usages
+
+  def names(self, category=None):
+    """
+    Get the catalog elements names
+    :parm: optional category filter
+    """
+    if category is None:
+      _names = {'archetypes': [], 'constructions': [], 'materials': [], 'windows': []}
+      for archetype in self._content.archetypes:
+        _names['archetypes'].append(archetype.name)
+      for construction in self._content.constructions:
+        _names['constructions'].append(construction.name)
+      for material in self._content.materials:
+        _names['materials'].append(material.name)
+      for window in self._content.windows:
+        _names['windows'].append(window.name)
+    else:
+      _names = {category: []}
+      if category.lower() == 'archetypes':
+        for archetype in self._content.archetypes:
+          _names[category].append(archetype.name)
+      elif category.lower() == 'constructions':
+        for construction in self._content.constructions:
+          _names[category].append(construction.name)
+      elif category.lower() == 'materials':
+        for material in self._content.materials:
+          _names[category].append(material.name)
+      elif category.lower() == 'windows':
+        for window in self._content.windows:
+          _names[category].append(window.name)
+      else:
+        raise ValueError(f'Unknown category [{category}]')
+
+  def entries(self, category=None):
+    """
+    Get the catalog elements
+    :parm: optional category filter
+    """
+    if category is None:
+      return self._content
+    else:
+      if category.lower() == 'archetypes':
+        return self._content.archetypes
+      elif category.lower() == 'constructions':
+        return self._content.constructions
+      elif category.lower() == 'materials':
+        return self._content.materials
+      elif category.lower() == 'windows':
+        return self._content.windows
+      else:
+        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.constructions:
+      if entry.name.lower() == name.lower():
+        return entry
+    for entry in self._content.materials:
+      if entry.name.lower() == name.lower():
+        return entry
+    for entry in self._content.windows:
+      if entry.name.lower() == name.lower():
+        return entry
+    raise IndexError(f"{name} doesn't exists in the catalog")

hub/catalog_factories/energy_systems_catalog_factory.py

@@ -0,0 +1,42 @@
+"""
+Usage catalog factory, publish the usage information
+SPDX - License - Identifier: LGPL - 3.0 - or -later
+Copyright © 2022 Concordia CERC group
+Project Coder Pilar Monsalvete Álvarez de Uribarri pilar.monsalvete@concordia.ca
+"""
+
+from pathlib import Path
+from typing import TypeVar
+from hub.catalog_factories.energy_systems.nrcan_catalog import NrcanCatalog
+from hub.hub_logger import logger
+from hub.helpers.utils import validate_import_export_type
+Catalog = TypeVar('Catalog')
+
+
+class UsageCatalogFactory:
+  def __init__(self, file_type, 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(UsageCatalogFactory)
+    if self._catalog_type not in class_funcs:
+      err_msg = f"Wrong import type. Valid functions include {class_funcs}"
+      logger.error(err_msg)
+      raise Exception(err_msg)
+    self._path = base_path
+
+  @property
+  def _nrcan(self):
+    """
+    Retrieve NRCAN catalog
+    """
+    # nrcan retrieves the data directly from github
+    return NrcanCatalog(self._path)
+
+  @property
+  def catalog(self) -> Catalog:
+    """
+    Enrich the city given to the class using the class given handler
+    :return: Catalog
+    """
+    return getattr(self, self._catalog_type, lambda: None)

hub/catalog_factories/usage/comnet_catalog.py

@@ -14,6 +14,7 @@ from hub.catalog_factories.data_models.usages.appliances import Appliances
 from hub.catalog_factories.data_models.usages.content import Content
 from hub.catalog_factories.data_models.usages.lighting import Lighting
 from hub.catalog_factories.data_models.usages.ocupancy import Occupancy
+from hub.catalog_factories.data_models.usages.domestic_hot_water import DomesticHotWater
 from hub.catalog_factories.data_models.usages.schedule import Schedule
 from hub.catalog_factories.data_models.usages.thermal_control import ThermalControl
 from hub.catalog_factories.data_models.usages.usage import Usage
@@ -51,6 +52,7 @@ class ComnetCatalog(Catalog):
       ventilation_rate = self._archetypes['ventilation rate'][comnet_usage]
       # convert cfm/ft2 to m3/m2.s
       ventilation_rate = ventilation_rate / (cte.METERS_TO_FEET * cte.MINUTES_TO_SECONDS)
+      domestic_hot_water_archetype = self._archetypes['water heating'][comnet_usage]
 
       # get occupancy
       occupancy_density = occupancy_archetype[0] / pow(cte.METERS_TO_FEET, 2)
@@ -96,6 +98,15 @@ class ComnetCatalog(Catalog):
                                        self._schedules[schedule_name]['ClgSetPt']
                                        )
 
+      # get domestic hot water
+      density = domestic_hot_water_archetype
+      # convert Btu/h/occ to W/m2
+      density = float(density) * cte.BTU_H_TO_WATTS * occupancy_density
+      domestic_hot_water_service_temperature = self._schedules[schedule_name]['WtrHtrSetPt'][0].values[0]
+      domestic_hot_water = DomesticHotWater(density,
+                                            domestic_hot_water_service_temperature,
+                                            self._schedules[schedule_name]['Service Hot Water']
+                                            )
       usages.append(Usage(comnet_usage,
                           hours_day,
                           days_year,
@@ -104,7 +115,8 @@ class ComnetCatalog(Catalog):
                           occupancy,
                           lighting,
                           appliances,
-                          thermal_control))
+                          thermal_control,
+                          domestic_hot_water))
 
     self._content = Content(usages)
 
@@ -136,7 +148,7 @@ class ComnetCatalog(Catalog):
           _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':
+          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

hub/catalog_factories/usage/nrcan_catalog.py

@@ -16,6 +16,7 @@ from hub.catalog_factories.data_models.usages.appliances import Appliances
 from hub.catalog_factories.data_models.usages.content import Content
 from hub.catalog_factories.data_models.usages.lighting import Lighting
 from hub.catalog_factories.data_models.usages.ocupancy import Occupancy
+from hub.catalog_factories.data_models.usages.domestic_hot_water import DomesticHotWater
 from hub.catalog_factories.data_models.usages.schedule import Schedule
 from hub.catalog_factories.data_models.usages.thermal_control import ThermalControl
 from hub.catalog_factories.data_models.usages.usage import Usage
@@ -36,7 +37,7 @@ class NrcanCatalog(Catalog):
   @staticmethod
   def _extract_schedule(raw):
     nrcan_schedule_type = raw['category']
-    if 'Heating' in raw['name']:
+    if 'Heating' in raw['name'] and 'Water' not in raw['name']:
       nrcan_schedule_type = f'{nrcan_schedule_type} Heating'
     elif 'Cooling' in raw['name']:
       nrcan_schedule_type = f'{nrcan_schedule_type} Cooling'
@@ -45,8 +46,8 @@ class NrcanCatalog(Catalog):
     hub_type = UsageHelper().nrcan_schedule_type_to_hub_schedule_type[nrcan_schedule_type]
     data_type = UsageHelper().nrcan_data_type_to_hub_data_type[raw['units']]
     time_step = UsageHelper().nrcan_time_to_hub_time[raw['type']]
-    # nrcan only uses yearly range for the schedules
-    time_range = cte.YEAR
+    # nrcan only uses daily range for the schedules
+    time_range = cte.DAY
     day_types = UsageHelper().nrcan_day_type_to_hub_days[raw['day_types']]
     return Schedule(hub_type, raw['values'], data_type, time_step, time_range, day_types)
 
@@ -91,12 +92,14 @@ class NrcanCatalog(Catalog):
         hvac_schedule_name = hvac_schedule_name.replace('FAN', 'Fan')
       heating_setpoint_schedule_name = space_type['heating_setpoint_schedule']
       cooling_setpoint_schedule_name = space_type['cooling_setpoint_schedule']
+      domestic_hot_water_schedule_name = space_type['service_water_heating_schedule']
       occupancy_schedule = self._get_schedules(occupancy_schedule_name)
       lighting_schedule = self._get_schedules(lighting_schedule_name)
       appliance_schedule = self._get_schedules(appliance_schedule_name)
       heating_schedule = self._get_schedules(heating_setpoint_schedule_name)
       cooling_schedule = self._get_schedules(cooling_setpoint_schedule_name)
       hvac_availability = self._get_schedules(hvac_schedule_name)
+      domestic_hot_water_load_schedule = self._get_schedules(domestic_hot_water_schedule_name)
 
       occupancy_density = space_type['occupancy_per_area']
 
@@ -124,6 +127,15 @@ class NrcanCatalog(Catalog):
       if appliances_radiative_fraction is not None and appliances_latent_fraction is not None:
         appliances_convective_fraction = 1 - appliances_radiative_fraction - appliances_latent_fraction
 
+      # peak flow in m3/day/m2
+      domestic_hot_water_peak_flow = space_type['service_water_heating_peak_flow_per_area']
+      domestic_hot_water_service_temperature = space_type['service_water_heating_target_temperature']
+      average_domestic_hot_water_inlet_temperature = 16.5
+      # result in W/m2
+      domestic_hot_water_density = domestic_hot_water_peak_flow / 24 / 3.6 * 4184 \
+                                   * (domestic_hot_water_service_temperature -
+                                      average_domestic_hot_water_inlet_temperature)
+
       occupancy = Occupancy(occupancy_density,
                             None,
                             None,
@@ -145,6 +157,10 @@ class NrcanCatalog(Catalog):
                                        hvac_availability,
                                        heating_schedule,
                                        cooling_schedule)
+      domestic_hot_water = DomesticHotWater(domestic_hot_water_density,
+                                            domestic_hot_water_service_temperature,
+                                            domestic_hot_water_load_schedule)
+
       hours_day = None
       days_year = None
       usages.append(Usage(usage_type,
@@ -155,7 +171,8 @@ class NrcanCatalog(Catalog):
                           occupancy,
                           lighting,
                           appliances,
-                          thermal_control))
+                          thermal_control,
+                          domestic_hot_water))
     return usages
 
   def names(self, category=None):

hub/catalog_factories/usage/usage_helper.py

@@ -19,7 +19,8 @@ class UsageHelper:
     'Equipment': cte.APPLIANCES,
     'Thermostat Setpoint Cooling': cte.COOLING_SET_POINT,  # Compose 'Thermostat Setpoint' + 'Cooling'
     'Thermostat Setpoint Heating': cte.HEATING_SET_POINT,  # Compose 'Thermostat Setpoint' + 'Heating'
-    'Fan': cte.HVAC_AVAILABILITY
+    'Fan': cte.HVAC_AVAILABILITY,
+    'Service Water Heating': cte.DOMESTIC_HOT_WATER
   }
   _nrcan_data_type_to_hub_data_type = {
     'FRACTION': cte.FRACTION,

hub/city_model_structure/building_demand/domestic_hot_water.py

@@ -0,0 +1,70 @@
+"""
+Domestic Hot Water module
+SPDX - License - Identifier: LGPL - 3.0 - or -later
+Copyright © 2023 Concordia CERC group
+Project Coder Pilar Monsalvete Alvarez de Uribarri pilar.monsalvete@concordia.ca
+"""
+from typing import Union, List
+from hub.city_model_structure.attributes.schedule import Schedule
+
+
+class DomesticHotWater:
+  """
+  DomesticHotWater class
+  """
+  def __init__(self):
+    self._density = None
+    self._service_temperature = None
+    self._schedules = None
+
+  @property
+  def density(self) -> Union[None, float]:
+    """
+    Get domestic hot water load density in Watts per m2
+    :return: None or float
+    """
+    return self._density
+
+  @density.setter
+  def density(self, value):
+    """
+    Set domestic hot water load density in Watts per m2
+    :param value: float
+    """
+    if value is not None:
+      self._density = float(value)
+
+  @property
+  def service_temperature(self) -> Union[None, float]:
+    """
+    Get service temperature in degrees Celsius
+    :return: None or float
+    """
+    return self._service_temperature
+
+  @service_temperature.setter
+  def service_temperature(self, value):
+    """
+    Set service temperature in degrees Celsius
+    :param value: float
+    """
+    if value is not None:
+      self._service_temperature = float(value)
+
+  @property
+  def schedules(self) -> Union[None, List[Schedule]]:
+    """
+    Get schedules
+    dataType = fraction
+    :return: None or [Schedule]
+    """
+    return self._schedules
+
+  @schedules.setter
+  def schedules(self, value):
+    """
+    Set schedules
+    dataType = fraction
+    :param value: [Schedule]
+    """
+    self._schedules = value

hub/city_model_structure/building_demand/thermal_zone.py

@@ -15,6 +15,7 @@ from hub.city_model_structure.building_demand.appliances import Appliances
 from hub.city_model_structure.building_demand.lighting import Lighting
 from hub.city_model_structure.building_demand.internal_gain import InternalGain
 from hub.city_model_structure.building_demand.thermal_control import ThermalControl
+from hub.city_model_structure.building_demand.domestic_hot_water import DomesticHotWater
 from hub.city_model_structure.attributes.schedule import Schedule
 import hub.helpers.constants as cte
 
@@ -53,6 +54,7 @@ class ThermalZone:
     self._appliances = None
     self._internal_gains = None
     self._thermal_control = None
+    self._domestic_hot_water = None
     self._usages = None
 
   @property
@@ -590,6 +592,43 @@ class ThermalZone:
 
     return self._thermal_control
 
+  @property
+  def domestic_hot_water(self) -> Union[None, DomesticHotWater]:
+    """
+    Get domestic hot water information of this thermal zone
+    :return: None or DomesticHotWater
+    """
+    self._domestic_hot_water = DomesticHotWater()
+    _mean_peak_density_load = 0
+    _mean_service_temperature = 0
+    for usage in self.usages:
+      _mean_peak_density_load += usage.percentage * usage.domestic_hot_water.density
+      _mean_service_temperature += usage.percentage * usage.domestic_hot_water.service_temperature
+    self._domestic_hot_water.density = _mean_peak_density_load
+    self._domestic_hot_water.service_temperature = _mean_service_temperature
+
+    _domestic_hot_water_reference = self.usages[0].domestic_hot_water
+    if _domestic_hot_water_reference.schedules is not None:
+      _schedules = []
+      for i_schedule in range(0, len(_domestic_hot_water_reference.schedules)):
+        schedule = Schedule()
+        schedule.type = _domestic_hot_water_reference.schedules[i_schedule].type
+        schedule.day_types = _domestic_hot_water_reference.schedules[i_schedule].day_types
+        schedule.data_type = _domestic_hot_water_reference.schedules[i_schedule].data_type
+        schedule.time_step = _domestic_hot_water_reference.schedules[i_schedule].time_step
+        schedule.time_range = _domestic_hot_water_reference.schedules[i_schedule].time_range
+
+        new_values = []
+        for i_value in range(0, len(_domestic_hot_water_reference.schedules[i_schedule].values)):
+          _new_value = 0
+          for usage in self.usages:
+            _new_value += usage.percentage * usage.domestic_hot_water.schedules[i_schedule].values[i_value]
+          new_values.append(_new_value)
+        schedule.values = new_values
+        _schedules.append(schedule)
+      self._domestic_hot_water.schedules = _schedules
+    return self._domestic_hot_water
+
   @property
   def total_floor_area(self):
     """

hub/city_model_structure/building_demand/usage.py

@@ -12,6 +12,7 @@ from hub.city_model_structure.building_demand.occupancy import Occupancy
 from hub.city_model_structure.building_demand.lighting import Lighting
 from hub.city_model_structure.building_demand.appliances import Appliances
 from hub.city_model_structure.building_demand.thermal_control import ThermalControl
+from hub.city_model_structure.building_demand.domestic_hot_water import DomesticHotWater
 from hub.city_model_structure.building_demand.internal_gain import InternalGain
 
 
@@ -31,6 +32,7 @@ class Usage:
     self._lighting = None
     self._appliances = None
     self._thermal_control = None
+    self._domestic_hot_water = None
 
   @property
   def id(self):
@@ -236,7 +238,7 @@ class Usage:
   @property
   def thermal_control(self) -> Union[None, ThermalControl]:
     """
-    Get thermal control of this thermal zone
+    Get thermal control information
     :return: None or ThermalControl
     """
     return self._thermal_control
@@ -244,7 +246,23 @@ class Usage:
   @thermal_control.setter
   def thermal_control(self, value):
     """
-    Set thermal control for this thermal zone
+    Set thermal control information
     :param value: ThermalControl
     """
     self._thermal_control = value
+
+  @property
+  def domestic_hot_water(self) -> Union[None, DomesticHotWater]:
+    """
+    Get domestic hot water information
+    :return: None or ThermalControl
+    """
+    return self._domestic_hot_water
+
+  @domestic_hot_water.setter
+  def domestic_hot_water(self, value):
+    """
+    Set domestic hot water information
+    :return: None or ThermalControl
+    """
+    self._domestic_hot_water = value

hub/data/energy_systems/nrcan.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<nrcan base_url="https://raw.githubusercontent.com/NREL/openstudio-standards/master/lib/openstudio-standards/standards/necb/ECMS/data/">
+    <boilers_location>boiler_set.json</boilers_location>
+    <chillers_location>chiller_set.json</chillers_location>
+    <curves_location>curves.json</curves_location>
+    <furnaces_location>furnace_set.json </furnaces_location>
+    <heat_pumps_location>heat_pumps.json</heat_pumps_location>
+    <domestic_hot_water_systems_location>shw_set.json</domestic_hot_water_systems_location>
+    <pvs_location>pv.json</pvs_location>
+    <air_conditioners_location>unitary_acs.json</air_conditioners_location>
+</nrcan>

hub/helpers/constants.py

@@ -137,6 +137,7 @@ HEATING_SET_POINT = 'HtgSetPt'
 EQUIPMENT = 'Equipment'
 ACTIVITY = 'Activity'
 PEOPLE_ACTIVITY_LEVEL = 'People Activity Level'
+DOMESTIC_HOT_WATER = 'Domestic Hot Water'
 
 # Geometry
 EPSILON = 0.0000001

hub/imports/usage/comnet_usage_parameters.py

@@ -15,6 +15,7 @@ from hub.city_model_structure.building_demand.lighting import Lighting
 from hub.city_model_structure.building_demand.occupancy import Occupancy
 from hub.city_model_structure.building_demand.appliances import Appliances
 from hub.city_model_structure.building_demand.thermal_control import ThermalControl
+from hub.city_model_structure.building_demand.domestic_hot_water import DomesticHotWater
 from hub.city_model_structure.attributes.schedule import Schedule
 from hub.city_model_structure.building_demand.internal_gain import InternalGain
 from hub.catalog_factories.usage_catalog_factory import UsageCatalogFactory
@@ -101,6 +102,11 @@ class ComnetUsageParameters:
     _control.heating_set_point_schedules = archetype.thermal_control.heating_set_point_schedules
     _control.hvac_availability_schedules = archetype.thermal_control.hvac_availability_schedules
     usage.thermal_control = _control
+    _domestic_hot_water = DomesticHotWater()
+    _domestic_hot_water.density = archetype.domestic_hot_water.density
+    _domestic_hot_water.service_temperature = archetype.domestic_hot_water.service_temperature
+    _domestic_hot_water.schedules = archetype.domestic_hot_water.schedules
+    usage.domestic_hot_water = _domestic_hot_water
 
   @staticmethod
   def _calculate_reduced_values_from_extended_library(usage, archetype):

hub/imports/usage/nrcan_usage_parameters.py

@@ -14,6 +14,7 @@ from hub.city_model_structure.building_demand.lighting import Lighting
 from hub.city_model_structure.building_demand.occupancy import Occupancy
 from hub.city_model_structure.building_demand.appliances import Appliances
 from hub.city_model_structure.building_demand.thermal_control import ThermalControl
+from hub.city_model_structure.building_demand.domestic_hot_water import DomesticHotWater
 from hub.catalog_factories.usage_catalog_factory import UsageCatalogFactory
 
 
@@ -111,6 +112,11 @@ class NrcanUsageParameters:
     _control.heating_set_point_schedules = archetype.thermal_control.heating_set_point_schedules
     _control.hvac_availability_schedules = archetype.thermal_control.hvac_availability_schedules
     usage.thermal_control = _control
+    _domestic_hot_water = DomesticHotWater()
+    _domestic_hot_water.density = archetype.domestic_hot_water.density
+    _domestic_hot_water.service_temperature = archetype.domestic_hot_water.service_temperature
+    _domestic_hot_water.schedules = archetype.domestic_hot_water.schedules
+    usage.domestic_hot_water = _domestic_hot_water
 
   @staticmethod
   def _assign_comnet_extra_values(usage, archetype):

hub/unittests/test_usage_factory.py

@@ -124,3 +124,7 @@ class TestUsageFactory(TestCase):
           self.assertIsNotNone(appliances.schedules, 'appliances schedule is none')
           self.assertIsNotNone(usage.thermal_control.hvac_availability_schedules,
                                'control hvac availability is none')
+          self.assertIsNotNone(usage.domestic_hot_water.density, 'domestic hot water density is none')
+          self.assertIsNotNone(usage.domestic_hot_water.service_temperature,
+                               'domestic hot water service temperature is none')
+          self.assertIsNotNone(usage.domestic_hot_water.schedules, 'domestic hot water schedules is none')