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partial refactor

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This commit is contained in:
Guille Gutierrez 2023-06-01 14:07:41 -04:00
parent dd0317c979
commit 43eb91c889
7 changed files with 760 additions and 369 deletions
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20
costs/__init__.py
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@ -5,28 +5,24 @@ import glob
import os
from pathlib import Path
# configurable parameters
# constant
# to remove
file_path = Path('./data/selected_building_2864.geojson').resolve()
CONSTRUCTION_FORMAT = 'nrcan'
USAGE_FORMAT = 'comnet'
ENERGY_SYSTEM_FORMAT = 'montreal_custom'
ATTIC_HEATED_CASE = 0
BASEMENT_HEATED_CASE = 1
NUMBER_OF_YEARS = 31
PERCENTAGE_CREDIT = 0
INTEREST_RATE = 0.04
CREDIT_YEARS = 15
CONSUMER_PRICE_INDEX = 0.04
ELECTRICITY_PEAK_INDEX = 0.05
ELECTRICITY_PRICE_INDEX = 0.05
GAS_PRICE_INDEX = 0.05
DISCOUNT_RATE = 0.03
RETROFITTING_YEAR_CONSTRUCTION = 2020
CLIMATE_REFERENCE_CITY = 'Montreal'
WEATHER_FILE = 'CAN_PQ_Montreal.Intl.AP.716270_CWEC.epw'
WEATHER_FORMAT = 'epw'
CURRENT_STATUS = 0
# constants
SKIN_RETROFIT = 1
SYSTEM_RETROFIT_AND_PV = 2
SKIN_RETROFIT_AND_SYSTEM_RETROFIT_AND_PV = 3

167
costs/__main__.py
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@ -7,10 +7,10 @@ Code contributor Oriol Gavalda Torrellas oriol.gavalda@concordia.ca
from pathlib import Path
import numpy_financial as npf
import pandas as pd
from energy_systems_sizing import EnergySystemsSizing
from hub.catalog_factories.costs_catalog_factory import CostCatalogFactory
from hub.helpers.dictionaries import Dictionaries
from hub.imports.construction_factory import ConstructionFactory
from hub.imports.energy_systems_factory import EnergySystemsFactory
@ -20,7 +20,7 @@ from hub.imports.weather_factory import WeatherFactory
from monthly_energy_balance_engine import MonthlyEnergyBalanceEngine
from sra_engine import SraEngine
from life_cycle_costs import LifeCycleCosts
from life_cycle_costs_old import LifeCycleCosts
# import constants
from costs import CLIMATE_REFERENCE_CITY, WEATHER_FILE, WEATHER_FORMAT, CONSTRUCTION_FORMAT, USAGE_FORMAT
@ -33,164 +33,3 @@ from costs import RETROFITTING_YEAR_CONSTRUCTION
from costs import file_path, tmp_folder, out_path
def _npv_from_list(npv_discount_rate, list_cashflow):
lcc_value = npf.npv(npv_discount_rate, list_cashflow)
return lcc_value
def _search_archetype(costs_catalog, building_function):
costs_archetypes = costs_catalog.entries('archetypes').archetypes
for building_archetype in costs_archetypes:
if str(building_function) == str(building_archetype.function):
return building_archetype
raise KeyError('archetype not found')
life_cycle_results = pd.DataFrame()
print('[city creation start]')
city = GeometryFactory('geojson',
path=file_path,
height_field='heightmax',
year_of_construction_field='ANNEE_CONS',
function_field='CODE_UTILI',
function_to_hub=Dictionaries().montreal_function_to_hub_function).city
city.climate_reference_city = CLIMATE_REFERENCE_CITY
city.climate_file = (tmp_folder / f'{CLIMATE_REFERENCE_CITY}.cli').resolve()
print(f'city created from {file_path}')
WeatherFactory(WEATHER_FORMAT, city, file_name=WEATHER_FILE).enrich()
print('enrich weather... done')
ConstructionFactory(CONSTRUCTION_FORMAT, city).enrich()
print('enrich constructions... done')
UsageFactory(USAGE_FORMAT, city).enrich()
print('enrich usage... done')
for building in city.buildings:
building.energy_systems_archetype_name = 'system 1 gas'
EnergySystemsFactory(ENERGY_SYSTEM_FORMAT, city).enrich()
print('enrich systems... done')
print('exporting:')
catalog = CostCatalogFactory('montreal_custom').catalog
print('costs catalog access... done')
sra_file = (tmp_folder / f'{city.name}_sra.xml').resolve()
SraEngine(city, sra_file, tmp_folder, WEATHER_FILE)
print(' sra processed...')
for building in city.buildings:
building.attic_heated = ATTIC_HEATED_CASE
building.basement_heated = BASEMENT_HEATED_CASE
for retrofitting_scenario in RETROFITTING_SCENARIOS:
if retrofitting_scenario in (SKIN_RETROFIT, SYSTEM_RETROFIT_AND_PV):
for building in city.buildings:
building.year_of_construction = RETROFITTING_YEAR_CONSTRUCTION
ConstructionFactory(CONSTRUCTION_FORMAT, city).enrich()
print('enrich retrofitted constructions... done')
if retrofitting_scenario in (SYSTEM_RETROFIT_AND_PV, SKIN_RETROFIT_AND_SYSTEM_RETROFIT_AND_PV):
for building in city.buildings:
building.energy_systems_archetype_name = 'system 6 electricity pv'
EnergySystemsFactory(ENERGY_SYSTEM_FORMAT, city).enrich()
print('enrich systems... done')
MonthlyEnergyBalanceEngine(city, tmp_folder)
EnergySystemsSizing(city).enrich()
print(f'beginning costing scenario {retrofitting_scenario} systems... done')
for building in city.buildings:
function = Dictionaries().hub_function_to_montreal_custom_costs_function[building.function]
archetype = _search_archetype(catalog, function)
print('lcc for first building started')
if "gas" in building.energy_systems_archetype_name:
FUEL_TYPE = 1
else:
FUEL_TYPE = 0
lcc = LifeCycleCosts(building, archetype, NUMBER_OF_YEARS, CONSUMER_PRICE_INDEX, ELECTRICITY_PEAK_INDEX,
ELECTRICITY_PRICE_INDEX, GAS_PRICE_INDEX, DISCOUNT_RATE, retrofitting_scenario, FUEL_TYPE)
global_capital_costs, global_capital_incomes = lcc.calculate_capital_costs()
global_end_of_life_costs = lcc.calculate_end_of_life_costs()
global_operational_costs = lcc.calculate_total_operational_costs
global_maintenance_costs = lcc.calculate_total_maintenance_costs()
global_operational_incomes = lcc.calculate_total_operational_incomes()
full_path_output = Path(out_path / f'output {retrofitting_scenario} {building.name}.xlsx').resolve()
with pd.ExcelWriter(full_path_output) as writer:
global_capital_costs.to_excel(writer, sheet_name='global_capital_costs')
global_end_of_life_costs.to_excel(writer, sheet_name='global_end_of_life_costs')
global_operational_costs.to_excel(writer, sheet_name='global_operational_costs')
global_maintenance_costs.to_excel(writer, sheet_name='global_maintenance_costs')
global_operational_incomes.to_excel(writer, sheet_name='global_operational_incomes')
global_capital_incomes.to_excel(writer, sheet_name='global_capital_incomes')
df_capital_costs_skin = (
global_capital_costs['B2010_opaque_walls'] + global_capital_costs['B2020_transparent'] +
global_capital_costs['B3010_opaque_roof'] + global_capital_costs['B10_superstructure']
)
df_capital_costs_systems = (
global_capital_costs['D3020_heat_generating_systems'] +
global_capital_costs['D3030_cooling_generation_systems'] +
global_capital_costs['D3080_other_hvac_ahu'] +
global_capital_costs['D5020_lighting_and_branch_wiring'] +
global_capital_costs['D301010_photovoltaic_system']
)
df_end_of_life_costs = global_end_of_life_costs['End_of_life_costs']
df_operational_costs = (
global_operational_costs['Fixed_costs_electricity_peak'] +
global_operational_costs['Fixed_costs_electricity_monthly'] +
global_operational_costs['Fixed_costs_electricity_peak'] +
global_operational_costs['Fixed_costs_electricity_monthly'] +
global_operational_costs['Variable_costs_electricity'] +
global_operational_costs['Fixed_costs_gas'] +
global_operational_costs['Variable_costs_gas']
)
df_maintenance_costs = (
global_maintenance_costs['Heating_maintenance'] +
global_maintenance_costs['Cooling_maintenance'] +
global_maintenance_costs['PV_maintenance']
)
df_operational_incomes = global_operational_incomes['Incomes electricity']
df_capital_incomes = (
global_capital_incomes['Subsidies construction'] +
global_capital_incomes['Subsidies HVAC'] +
global_capital_incomes['Subsidies PV']
)
life_cycle_costs_capital_skin = _npv_from_list(DISCOUNT_RATE, df_capital_costs_skin.values.tolist())
life_cycle_costs_capital_systems = _npv_from_list(DISCOUNT_RATE, df_capital_costs_systems.values.tolist())
life_cycle_costs_end_of_life_costs = _npv_from_list(DISCOUNT_RATE, df_end_of_life_costs.values.tolist())
life_cycle_operational_costs = _npv_from_list(DISCOUNT_RATE, df_operational_costs.values.tolist())
life_cycle_maintenance_costs = _npv_from_list(DISCOUNT_RATE, df_maintenance_costs.values.tolist())
life_cycle_operational_incomes = _npv_from_list(DISCOUNT_RATE, df_operational_incomes.values.tolist())
life_cycle_capital_incomes = _npv_from_list(DISCOUNT_RATE, df_capital_incomes.values.tolist())
life_cycle_costs = (
life_cycle_costs_capital_skin +
life_cycle_costs_capital_systems +
life_cycle_costs_end_of_life_costs +
life_cycle_operational_costs +
life_cycle_maintenance_costs -
life_cycle_operational_incomes -
life_cycle_capital_incomes
)
life_cycle_results[f'Scenario {retrofitting_scenario}'] = [life_cycle_costs_capital_skin,
life_cycle_costs_capital_systems,
life_cycle_costs_end_of_life_costs,
life_cycle_operational_costs,
life_cycle_maintenance_costs,
life_cycle_operational_incomes,
life_cycle_capital_incomes]
life_cycle_results.index = ['total_capital_costs_skin',
'total_capital_costs_systems',
'end_of_life_costs',
'total_operational_costs',
'total_maintenance_costs',
'operational_incomes',
'capital_incomes']
print(life_cycle_results)
print(f'Scenario {retrofitting_scenario} {life_cycle_costs}')

6
costs/building.py Normal file
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@ -0,0 +1,6 @@
from hub.persistence.models.city_object import CityObject
class Building(CityObject):
def __init__(self, ):
super()

198
costs/configuration.py Normal file
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@ -0,0 +1,198 @@
"""
Configuration module
"""
from hub.catalog_factories.costs_catalog_factory import CostCatalogFactory
from hub.catalog_factories.catalog import Catalog
class Configuration:
"""
Configuration class
"""
def __init__(self,
number_of_years,
percentage_credit,
interest_rate,
credit_years,
consumer_price_index,
electricity_peak_index,
electricity_price_index,
gas_price_index,
discount_rate,
retrofitting_year_construction,
factories_handler
):
self._number_of_years = number_of_years
self._percentage_credit = percentage_credit
self._interest_rate = interest_rate
self._credit_years = credit_years
self._consumer_price_index = consumer_price_index
self._electricity_peak_index = electricity_peak_index
self._electricity_price_index = electricity_price_index
self._gas_price_index = gas_price_index
self._discount_rate = discount_rate
self._retrofitting_year_construction = retrofitting_year_construction
self._factories_handler = factories_handler
self._cost_catalog = CostCatalogFactory(factories_handler).catalog
@property
def number_of_years(self):
"""
Get number of years
"""
return self._number_of_years
@number_of_years.setter
def number_of_years(self, value):
"""
Set number of years
"""
self._number_of_years = value
@property
def percentage_credit(self):
"""
Get percentage credit
"""
return self._percentage_credit
@percentage_credit.setter
def percentage_credit(self, value):
"""
Set percentage credit
"""
self._percentage_credit = value
@property
def interest_rate(self):
"""
Get interest rate
"""
return self._interest_rate
@interest_rate.setter
def interest_rate(self, value):
"""
Set interest rate
"""
self._interest_rate = value
@property
def credit_years(self):
"""
Get credit years
"""
return self._credit_years
@credit_years.setter
def credit_years(self, value):
"""
Set credit years
"""
self._credit_years = value
@property
def consumer_price_index(self):
"""
Get consumer price index
"""
return self._consumer_price_index
@consumer_price_index.setter
def consumer_price_index(self, value):
"""
Set consumer price index
"""
self._consumer_price_index = value
@property
def electricity_peak_index(self):
"""
Get electricity peak index
"""
return self._electricity_peak_index
@electricity_peak_index.setter
def electricity_peak_index(self, value):
"""
Set electricity peak index
"""
self._electricity_peak_index = value
@property
def electricity_price_index(self):
"""
Get electricity price index
"""
return self._electricity_price_index
@electricity_price_index.setter
def electricity_price_index(self, value):
"""
Set electricity price index
"""
self._electricity_price_index = value
@property
def gas_price_index(self):
"""
Get gas price index
"""
return self._gas_price_index
@gas_price_index.setter
def gas_price_index(self, value):
"""
Set gas price index
"""
self._gas_price_index = value
@property
def discount_rate(self):
"""
Get discount rate
"""
return self._discount_rate
@discount_rate.setter
def discount_rate(self, value):
"""
Set discount rate
"""
self._discount_rate = value
@property
def retrofitting_year_construction(self):
"""
Get retrofitting year construction
"""
return self._retrofitting_year_construction
@retrofitting_year_construction.setter
def retrofitting_year_construction(self, value):
"""
Set retrofitting year construction
"""
self._retrofitting_year_construction = value
@property
def factories_handler(self):
"""
Get factories handler
"""
return self._factories_handler
@factories_handler.setter
def factories_handler(self, value):
"""
Set factories handler
"""
self._factories_handler = value
@property
def cost_catalog(self) -> Catalog:
"""
Get cost catalog
"""
return self._cost_catalog

162
costs/cost.py Normal file
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@ -0,0 +1,162 @@
"""
Cost module
"""
import pandas as pd
from hub.city_model_structure.city import City
from configuration import Configuration
from life_cycle_costs import LifeCycleCosts
class Cost:
"""
Cost class
"""
def __init__(self,
city: City,
number_of_years=31,
percentage_credit=0,
interest_rate=0.04,
credit_years=15,
consumer_price_index=0.04,
electricity_peak_index=0.05,
electricity_price_index=0.05,
gas_price_index=0.05,
discount_rate=0.03,
retrofitting_year_construction=2020,
factories_handler='montreal_custom'):
self._city = city
self._configuration = Configuration(number_of_years,
percentage_credit,
interest_rate, credit_years,
consumer_price_index,
electricity_peak_index,
electricity_price_index,
gas_price_index,
discount_rate,
retrofitting_year_construction,
factories_handler)
@property
def life_cycle(self) -> pd.DataFrame:
"""
Get complete life cycle costs
:return: DataFrame
"""
results = pd.DataFrame()
for building in self._city.buildings:
lcc = LifeCycleCosts(building, self._configuration)
global_capital_costs, global_capital_incomes = lcc.calculate_capital_costs()
global_end_of_life_costs = lcc.calculate_end_of_life_costs()
global_operational_costs = lcc.calculate_total_operational_costs
global_maintenance_costs = lcc.calculate_total_maintenance_costs()
global_operational_incomes = lcc.calculate_total_operational_incomes()
results[f'Scenario {retrofitting_scenario}'] = [life_cycle_costs_capital_skin,
life_cycle_costs_capital_systems,
life_cycle_costs_end_of_life_costs,
life_cycle_operational_costs,
life_cycle_maintenance_costs,
life_cycle_operational_incomes,
life_cycle_capital_incomes]
life_cycle_results.index = ['total_capital_costs_skin',
'total_capital_costs_systems',
'end_of_life_costs',
'total_operational_costs',
'total_maintenance_costs',
'operational_incomes',
'capital_incomes']
return results
"""
if "gas" in building.energy_systems_archetype_name:
FUEL_TYPE = 1
else:
FUEL_TYPE = 0
full_path_output = Path(out_path / f'output {retrofitting_scenario} {building.name}.xlsx').resolve()
with pd.ExcelWriter(full_path_output) as writer:
global_capital_costs.to_excel(writer, sheet_name='global_capital_costs')
global_end_of_life_costs.to_excel(writer, sheet_name='global_end_of_life_costs')
global_operational_costs.to_excel(writer, sheet_name='global_operational_costs')
global_maintenance_costs.to_excel(writer, sheet_name='global_maintenance_costs')
global_operational_incomes.to_excel(writer, sheet_name='global_operational_incomes')
global_capital_incomes.to_excel(writer, sheet_name='global_capital_incomes')
df_capital_costs_skin = (
global_capital_costs['B2010_opaque_walls'] + global_capital_costs['B2020_transparent'] +
global_capital_costs['B3010_opaque_roof'] + global_capital_costs['B10_superstructure']
)
df_capital_costs_systems = (
global_capital_costs['D3020_heat_generating_systems'] +
global_capital_costs['D3030_cooling_generation_systems'] +
global_capital_costs['D3080_other_hvac_ahu'] +
global_capital_costs['D5020_lighting_and_branch_wiring'] +
global_capital_costs['D301010_photovoltaic_system']
)
df_end_of_life_costs = global_end_of_life_costs['End_of_life_costs']
df_operational_costs = (
global_operational_costs['Fixed_costs_electricity_peak'] +
global_operational_costs['Fixed_costs_electricity_monthly'] +
global_operational_costs['Fixed_costs_electricity_peak'] +
global_operational_costs['Fixed_costs_electricity_monthly'] +
global_operational_costs['Variable_costs_electricity'] +
global_operational_costs['Fixed_costs_gas'] +
global_operational_costs['Variable_costs_gas']
)
df_maintenance_costs = (
global_maintenance_costs['Heating_maintenance'] +
global_maintenance_costs['Cooling_maintenance'] +
global_maintenance_costs['PV_maintenance']
)
df_operational_incomes = global_operational_incomes['Incomes electricity']
df_capital_incomes = (
global_capital_incomes['Subsidies construction'] +
global_capital_incomes['Subsidies HVAC'] +
global_capital_incomes['Subsidies PV']
)
life_cycle_costs_capital_skin = npf.npv(self._discount_rate, list_cashflow)_npv_from_list(, df_capital_costs_skin.values.tolist())
life_cycle_costs_capital_systems = _npv_from_list(DISCOUNT_RATE, df_capital_costs_systems.values.tolist())
life_cycle_costs_end_of_life_costs = _npv_from_list(DISCOUNT_RATE, df_end_of_life_costs.values.tolist())
life_cycle_operational_costs = _npv_from_list(DISCOUNT_RATE, df_operational_costs.values.tolist())
life_cycle_maintenance_costs = _npv_from_list(DISCOUNT_RATE, df_maintenance_costs.values.tolist())
life_cycle_operational_incomes = _npv_from_list(DISCOUNT_RATE, df_operational_incomes.values.tolist())
life_cycle_capital_incomes = _npv_from_list(DISCOUNT_RATE, df_capital_incomes.values.tolist())
life_cycle_costs = (
life_cycle_costs_capital_skin +
life_cycle_costs_capital_systems +
life_cycle_costs_end_of_life_costs +
life_cycle_operational_costs +
life_cycle_maintenance_costs -
life_cycle_operational_incomes -
life_cycle_capital_incomes
)
life_cycle_results[f'Scenario {retrofitting_scenario}'] = [life_cycle_costs_capital_skin,
life_cycle_costs_capital_systems,
life_cycle_costs_end_of_life_costs,
life_cycle_operational_costs,
life_cycle_maintenance_costs,
life_cycle_operational_incomes,
life_cycle_capital_incomes]
life_cycle_results.index = ['total_capital_costs_skin',
'total_capital_costs_systems',
'end_of_life_costs',
'total_operational_costs',
'total_maintenance_costs',
'operational_incomes',
'capital_incomes']
print(life_cycle_results)
print(f'Scenario {retrofitting_scenario} {life_cycle_costs}')
return results
"""

207
costs/life_cycle_costs.py
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@ -1,78 +1,36 @@
"""
LifeCycleCosts module calculates the life cycle costs of one building
SPDX - License - Identifier: LGPL - 3.0 - or -later
Copyright © 2022 Project Author Pilar Monsalvete Alvarez de Uribarri pilar_monsalvete@concordia.ca
Code contributor Oriol Gavalda Torrellas oriol.gavalda@concordia.ca
Life cycle costs module
"""
import math
import pandas as pd
import numpy_financial as npf
import hub.helpers.constants as cte
from costs import SKIN_RETROFIT, SYSTEM_RETROFIT_AND_PV, SKIN_RETROFIT_AND_SYSTEM_RETROFIT_AND_PV, PERCENTAGE_CREDIT,INTEREST_RATE,CREDIT_YEARS
from hub.city_model_structure.building import Building
from configuration import Configuration
class LifeCycleCosts:
"""
Life cycle cost class
Life cycle costs class
"""
def __init__(self, building, archetype, number_of_years, consumer_price_index, electricity_peak_index,
electricity_price_index, gas_price_index, discount_rate,
retrofitting_scenario, fuel_type):
def __init__(self, building: Building, configuration: Configuration):
self._building = building
self._number_of_years = number_of_years
self._consumer_price_index = consumer_price_index
self._electricity_peak_index = electricity_peak_index
self._electricity_price_index = electricity_price_index
self._gas_price_index = gas_price_index
self._discount_rate = discount_rate
self._archetype = archetype
self._end_of_life_cost = 0
self._capital_costs_at_year_0 = 0
self._items = 0
self._fuels = 0
self._concepts = 0
self._retrofitting_scenario = retrofitting_scenario
self._configuration = configuration
self._total_floor_area = 0
self._fuel_type = fuel_type
for internal_zone in building.internal_zones:
for thermal_zone in internal_zone.thermal_zones:
self._total_floor_area += thermal_zone.total_floor_area
# todo: revise if it works
rng = range(number_of_years)
self._yearly_capital_costs = pd.DataFrame(index=rng, columns=['B2010_opaque_walls', 'B2020_transparent',
'B3010_opaque_roof', 'B10_superstructure',
'D301010_photovoltaic_system',
'D3020_heat_generating_systems',
'D3030_cooling_generation_systems',
'D3040_distribution_systems',
'D3080_other_hvac_ahu',
'D5020_lighting_and_branch_wiring'],
dtype='float')
self._yearly_end_of_life_costs = pd.DataFrame(index=rng, columns=['End_of_life_costs'], dtype='float')
self._yearly_operational_costs = pd.DataFrame(index=rng, columns=['Fixed_costs_electricity_peak',
'Fixed_costs_electricity_monthly',
'Variable_costs_electricity', 'Fixed_costs_gas',
'Variable_costs_gas'],
dtype='float')
self._yearly_maintenance_costs = pd.DataFrame(index=rng, columns=['Heating_maintenance', 'Cooling_maintenance',
'PV_maintenance'], dtype='float')
self._yearly_operational_incomes = pd.DataFrame(index=rng, columns=['Incomes electricity'], dtype='float')
self._yearly_capital_incomes = pd.DataFrame(index=rng, columns=['Subsidies construction',
'Subsidies HVAC', 'Subsidies PV'], dtype='float')
self._archetype = None
for archetype in self._configuration.cost_catalog.entries('archetypes').archetype:
if str(building.function) == str(archetype.function):
self._archetype = archetype
break
if not self._archetype:
raise KeyError('archetype not found')
def calculate_capital_costs(self):
"""
Calculate capital cost
:return: pd.DataFrame
"""
building = self._building
archetype = self._archetype
surface_opaque = 0
surface_transparent = 0
surface_roof = 0
@ -88,7 +46,7 @@ class LifeCycleCosts:
capital_cost_other_hvac_ahu = 0
capital_cost_lighting = 0
total_floor_area = self._total_floor_area
total_floor_area = self._building.floor_area
for internal_zone in building.internal_zones:
for thermal_zone in internal_zone.thermal_zones:
@ -230,140 +188,3 @@ class LifeCycleCosts:
self._yearly_capital_incomes.loc[0, 'Subsidies PV'] = capital_cost_pv * archetype.income.photovoltaic_subsidy/100
self._yearly_capital_incomes.fillna(0, inplace=True)
return self._yearly_capital_costs, self._yearly_capital_incomes
def calculate_end_of_life_costs(self):
"""
Calculate end of life costs
:return: pd.DataFrame
"""
archetype = self._archetype
total_floor_area = self._total_floor_area
for year in range(1, self._number_of_years + 1):
price_increase = math.pow(1 + self._consumer_price_index, year)
if year == self._number_of_years:
self._yearly_end_of_life_costs.at[
year, 'End_of_life_costs'] = total_floor_area * archetype.end_of_life_cost * price_increase
self._yearly_end_of_life_costs.fillna(0, inplace=True)
return self._yearly_end_of_life_costs
@property
def calculate_total_operational_costs(self):
"""
Calculate total operational costs
:return: pd.DataFrame
"""
building = self._building
archetype = self._archetype
total_floor_area = self._total_floor_area
factor_residential = total_floor_area / 80
# todo: split the heating between fuels
fixed_gas_cost_year_0 = 0
variable_gas_cost_year_0 = 0
electricity_heating = 0
domestic_hot_water_electricity = 0
if self._fuel_type == 1:
fixed_gas_cost_year_0 = archetype.operational_cost.fuels[1].fixed_monthly * 12 * factor_residential
variable_gas_cost_year_0 = (
(building.heating_consumption[cte.YEAR][0] + building.domestic_hot_water_consumption[cte.YEAR][0]) / 1000 *
archetype.operational_cost.fuels[1].variable[0]
)
if self._fuel_type == 0:
electricity_heating = building.heating_consumption[cte.YEAR][0] / 1000
domestic_hot_water_electricity = building.domestic_hot_water_consumption[cte.YEAR][0] / 1000
electricity_cooling = building.cooling_consumption[cte.YEAR][0] / 1000
electricity_lighting = building.lighting_electrical_demand[cte.YEAR]['insel meb'] / 1000
electricity_plug_loads = building.appliances_electrical_demand[cte.YEAR]['insel meb'] / 1000
electricity_distribution = 0
total_electricity_consumption = (
electricity_heating + electricity_cooling + electricity_lighting + domestic_hot_water_electricity +
electricity_plug_loads + electricity_distribution
)
# todo: change when peak electricity demand is coded. Careful with factor residential
peak_electricity_demand = 100 # self._peak_electricity_demand
variable_electricity_cost_year_0 = total_electricity_consumption * archetype.operational_cost.fuels[0].variable[0]
peak_electricity_cost_year_0 = peak_electricity_demand * archetype.operational_cost.fuels[0].fixed_power * 12
monthly_electricity_cost_year_0 = archetype.operational_cost.fuels[0].fixed_monthly * 12 * factor_residential
for year in range(1, self._number_of_years + 1):
price_increase_electricity = math.pow(1 + self._electricity_price_index, year)
price_increase_peak_electricity = math.pow(1 + self._electricity_peak_index, year)
price_increase_gas = math.pow(1 + self._gas_price_index, year)
self._yearly_operational_costs.at[year, 'Fixed_costs_electricity_peak'] = (
peak_electricity_cost_year_0 * price_increase_peak_electricity
)
self._yearly_operational_costs.at[year, 'Fixed_costs_electricity_monthly'] = (
monthly_electricity_cost_year_0 * price_increase_peak_electricity
)
self._yearly_operational_costs.at[year, 'Variable_costs_electricity'] = float(
variable_electricity_cost_year_0 * price_increase_electricity
)
self._yearly_operational_costs.at[year, 'Fixed_costs_gas'] = fixed_gas_cost_year_0 * price_increase_gas
self._yearly_operational_costs.at[year, 'Variable_costs_gas'] = (
variable_gas_cost_year_0 * price_increase_peak_electricity
)
self._yearly_operational_costs.at[year, 'Variable_costs_gas'] = (
variable_gas_cost_year_0 * price_increase_peak_electricity
)
self._yearly_operational_costs.fillna(0, inplace=True)
return self._yearly_operational_costs
def calculate_total_operational_incomes(self):
"""
Calculate total operational incomes
:return: pd.DataFrame
"""
building = self._building
if cte.YEAR not in building.onsite_electrical_production:
onsite_electricity_production = 0
else:
onsite_electricity_production = building.onsite_electrical_production[cte.YEAR][0]/1000
for year in range(1, self._number_of_years + 1):
price_increase_electricity = math.pow(1 + self._electricity_price_index, year)
# todo: check the adequate assignation of price. Pilar
price_export = 0.075 # archetype.income.electricity_export
self._yearly_operational_incomes.loc[year, 'Incomes electricity'] = (
onsite_electricity_production * price_export * price_increase_electricity
)
self._yearly_operational_incomes.fillna(0, inplace=True)
return self._yearly_operational_incomes
def calculate_total_maintenance_costs(self):
"""
Calculate total maintenance costs
:return: pd.DataFrame
"""
building = self._building
archetype = self._archetype
# todo: change area pv when the variable exists
roof_area = 0
for roof in building.roofs:
roof_area += roof.solid_polygon.area
surface_pv = roof_area * 0.5
peak_heating = building.heating_peak_load[cte.YEAR][cte.HEATING_PEAK_LOAD][0]
peak_cooling = building.cooling_peak_load[cte.YEAR][cte.COOLING_PEAK_LOAD][0]
maintenance_heating_0 = peak_heating * archetype.operational_cost.maintenance_heating
maintenance_cooling_0 = peak_cooling * archetype.operational_cost.maintenance_cooling
maintenance_pv_0 = surface_pv * archetype.operational_cost.maintenance_pv
for year in range(1, self._number_of_years + 1):
costs_increase = math.pow(1 + self._consumer_price_index, year)
self._yearly_maintenance_costs.loc[year, 'Heating_maintenance'] = (
maintenance_heating_0 * costs_increase
)
self._yearly_maintenance_costs.loc[year, 'Cooling_maintenance'] = (
maintenance_cooling_0 * costs_increase
)
self._yearly_maintenance_costs.loc[year, 'PV_maintenance'] = (
maintenance_pv_0 * costs_increase
)
self._yearly_maintenance_costs.fillna(0, inplace=True)
return self._yearly_maintenance_costs

369
costs/life_cycle_costs_old.py Normal file
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@ -0,0 +1,369 @@
"""
LifeCycleCosts module calculates the life cycle costs of one building
SPDX - License - Identifier: LGPL - 3.0 - or -later
Copyright © 2022 Project Author Pilar Monsalvete Alvarez de Uribarri pilar_monsalvete@concordia.ca
Code contributor Oriol Gavalda Torrellas oriol.gavalda@concordia.ca
"""
import math
import pandas as pd
import numpy_financial as npf
import hub.helpers.constants as cte
from costs import SKIN_RETROFIT, SYSTEM_RETROFIT_AND_PV, SKIN_RETROFIT_AND_SYSTEM_RETROFIT_AND_PV, PERCENTAGE_CREDIT,INTEREST_RATE,CREDIT_YEARS
class LifeCycleCosts:
"""
Life cycle cost class
"""
def __init__(self, building, archetype, number_of_years, consumer_price_index, electricity_peak_index,
electricity_price_index, gas_price_index, discount_rate,
retrofitting_scenario, fuel_type):
self._building = building
self._number_of_years = number_of_years
self._consumer_price_index = consumer_price_index
self._electricity_peak_index = electricity_peak_index
self._electricity_price_index = electricity_price_index
self._gas_price_index = gas_price_index
self._discount_rate = discount_rate
self._archetype = archetype
self._end_of_life_cost = 0
self._capital_costs_at_year_0 = 0
self._items = 0
self._fuels = 0
self._concepts = 0
self._retrofitting_scenario = retrofitting_scenario
self._total_floor_area = 0
self._fuel_type = fuel_type
for internal_zone in building.internal_zones:
for thermal_zone in internal_zone.thermal_zones:
self._total_floor_area += thermal_zone.total_floor_area
# todo: revise if it works
rng = range(number_of_years)
self._yearly_capital_costs = pd.DataFrame(index=rng, columns=['B2010_opaque_walls', 'B2020_transparent',
'B3010_opaque_roof', 'B10_superstructure',
'D301010_photovoltaic_system',
'D3020_heat_generating_systems',
'D3030_cooling_generation_systems',
'D3040_distribution_systems',
'D3080_other_hvac_ahu',
'D5020_lighting_and_branch_wiring'],
dtype='float')
self._yearly_end_of_life_costs = pd.DataFrame(index=rng, columns=['End_of_life_costs'], dtype='float')
self._yearly_operational_costs = pd.DataFrame(index=rng, columns=['Fixed_costs_electricity_peak',
'Fixed_costs_electricity_monthly',
'Variable_costs_electricity', 'Fixed_costs_gas',
'Variable_costs_gas'],
dtype='float')
self._yearly_maintenance_costs = pd.DataFrame(index=rng, columns=['Heating_maintenance', 'Cooling_maintenance',
'PV_maintenance'], dtype='float')
self._yearly_operational_incomes = pd.DataFrame(index=rng, columns=['Incomes electricity'], dtype='float')
self._yearly_capital_incomes = pd.DataFrame(index=rng, columns=['Subsidies construction',
'Subsidies HVAC', 'Subsidies PV'], dtype='float')
def calculate_capital_costs(self):
"""
Calculate capital cost
:return: pd.DataFrame
"""
building = self._building
archetype = self._archetype
surface_opaque = 0
surface_transparent = 0
surface_roof = 0
surface_ground = 0
capital_cost_pv = 0
capital_cost_opaque = 0
capital_cost_ground = 0
capital_cost_transparent = 0
capital_cost_roof = 0
capital_cost_heating_equipment = 0
capital_cost_cooling_equipment = 0
capital_cost_distribution_equipment = 0
capital_cost_other_hvac_ahu = 0
capital_cost_lighting = 0
total_floor_area = self._total_floor_area
for internal_zone in building.internal_zones:
for thermal_zone in internal_zone.thermal_zones:
for thermal_boundary in thermal_zone.thermal_boundaries:
if thermal_boundary.type == 'Ground':
surface_ground += thermal_boundary.opaque_area
elif thermal_boundary.type == 'Roof':
surface_roof += thermal_boundary.opaque_area
elif thermal_boundary.type == 'Wall':
surface_opaque += thermal_boundary.opaque_area * (1 - thermal_boundary.window_ratio)
surface_transparent += thermal_boundary.opaque_area * thermal_boundary.window_ratio
chapters = archetype.capital_cost
peak_heating = building.heating_peak_load[cte.YEAR].values[0]/1000
peak_cooling = building.cooling_peak_load[cte.YEAR].values[0]/1000
# todo: change area pv when the variable exists
roof_area = 0
for roof in building.roofs:
roof_area += roof.solid_polygon.area
surface_pv = roof_area * 0.5
self._yearly_capital_costs.loc[0, 'B2010_opaque_walls'] = 0
self._yearly_capital_costs.loc[0]['B2020_transparent'] = 0
self._yearly_capital_costs.loc[0, 'B3010_opaque_roof'] = 0
self._yearly_capital_costs.loc[0]['B10_superstructure'] = 0
self._yearly_capital_costs.loc[0, 'D3020_heat_generating_systems'] = 0
self._yearly_capital_costs.loc[0, 'D3030_cooling_generation_systems'] = 0
self._yearly_capital_costs.loc[0, 'D3040_distribution_systems'] = 0
self._yearly_capital_costs.loc[0, 'D3080_other_hvac_ahu'] = 0
self._yearly_capital_costs.loc[0, 'D5020_lighting_and_branch_wiring'] = 0
self._yearly_capital_incomes.loc[0, 'Subsidies construction'] = 0
self._yearly_capital_incomes.loc[0, 'Subsidies HVAC'] = 0
self._yearly_capital_incomes.loc[0, 'Subsidies PV'] = 0
self._yearly_capital_costs.fillna(0, inplace=True)
if self._retrofitting_scenario in (SKIN_RETROFIT, SKIN_RETROFIT_AND_SYSTEM_RETROFIT_AND_PV):
chapter = chapters.chapter('B_shell')
capital_cost_opaque = surface_opaque * chapter.item('B2010_opaque_walls').refurbishment[0]
capital_cost_transparent = surface_transparent * chapter.item('B2020_transparent').refurbishment[0]
capital_cost_roof = surface_roof * chapter.item('B3010_opaque_roof').refurbishment[0]
capital_cost_ground = surface_ground * chapter.item('B10_superstructure').refurbishment[0]
self._yearly_capital_costs.loc[0, 'B2010_opaque_walls'] = capital_cost_opaque * (1-PERCENTAGE_CREDIT)
self._yearly_capital_costs.loc[0]['B2020_transparent'] = capital_cost_transparent * (1-PERCENTAGE_CREDIT)
self._yearly_capital_costs.loc[0, 'B3010_opaque_roof'] = capital_cost_roof * (1-PERCENTAGE_CREDIT)
self._yearly_capital_costs.loc[0]['B10_superstructure'] = capital_cost_ground * (1-PERCENTAGE_CREDIT)
if self._retrofitting_scenario in (SYSTEM_RETROFIT_AND_PV, SKIN_RETROFIT_AND_SYSTEM_RETROFIT_AND_PV):
chapter = chapters.chapter('D_services')
capital_cost_pv = surface_pv * chapter.item('D301010_photovoltaic_system').initial_investment[0]
self._yearly_capital_costs.loc[0]['D301010_photovoltaic_system'] = capital_cost_pv
capital_cost_heating_equipment = (
peak_heating * chapter.item('D3020_heat_generating_systems').initial_investment[0]
)
capital_cost_cooling_equipment = (
peak_cooling * chapter.item('D3030_cooling_generation_systems').initial_investment[0]
)
capital_cost_distribution_equipment = (
peak_cooling * chapter.item('D3040_distribution_systems').initial_investment[0]
)
capital_cost_other_hvac_ahu = peak_cooling * chapter.item('D3080_other_hvac_ahu').initial_investment[0]
capital_cost_lighting = total_floor_area * chapter.item('D5020_lighting_and_branch_wiring').initial_investment[0]
self._yearly_capital_costs.loc[0, 'D3020_heat_generating_systems'] = capital_cost_heating_equipment * (1-PERCENTAGE_CREDIT)
self._yearly_capital_costs.loc[0, 'D3030_cooling_generation_systems'] = capital_cost_cooling_equipment * (1-PERCENTAGE_CREDIT)
self._yearly_capital_costs.loc[0, 'D3040_distribution_systems'] = capital_cost_distribution_equipment * (1-PERCENTAGE_CREDIT)
self._yearly_capital_costs.loc[0, 'D3080_other_hvac_ahu'] = capital_cost_other_hvac_ahu * (1-PERCENTAGE_CREDIT)
self._yearly_capital_costs.loc[0, 'D5020_lighting_and_branch_wiring'] = capital_cost_lighting * (1-PERCENTAGE_CREDIT)
for year in range(1, self._number_of_years):
chapter = chapters.chapter('D_services')
costs_increase = math.pow(1 + self._consumer_price_index, year)
self._yearly_capital_costs.loc[year, 'B2010_opaque_walls'] = -npf.pmt(INTEREST_RATE, CREDIT_YEARS,
capital_cost_opaque * (PERCENTAGE_CREDIT))
self._yearly_capital_costs.loc[year, 'B2020_transparent'] = -npf.pmt(INTEREST_RATE, CREDIT_YEARS,
capital_cost_transparent * (PERCENTAGE_CREDIT)
)
self._yearly_capital_costs.loc[year, 'B3010_opaque_roof'] = -npf.pmt(INTEREST_RATE, CREDIT_YEARS,capital_cost_roof
* (PERCENTAGE_CREDIT))
self._yearly_capital_costs.loc[year, 'B10_superstructure'] = -npf.pmt(INTEREST_RATE, CREDIT_YEARS,
capital_cost_ground * (PERCENTAGE_CREDIT))
self._yearly_capital_costs.loc[year, 'D3020_heat_generating_systems'] = -npf.pmt(INTEREST_RATE,CREDIT_YEARS,
capital_cost_heating_equipment
* (PERCENTAGE_CREDIT))
self._yearly_capital_costs.loc[year, 'D3030_cooling_generation_systems'] = -npf.pmt(INTEREST_RATE, CREDIT_YEARS,
capital_cost_cooling_equipment
* (PERCENTAGE_CREDIT))
self._yearly_capital_costs.loc[year, 'D3040_distribution_systems'] = -npf.pmt(INTEREST_RATE, CREDIT_YEARS,
capital_cost_distribution_equipment
* (PERCENTAGE_CREDIT))
self._yearly_capital_costs.loc[year, 'D3080_other_hvac_ahu'] = -npf.pmt(INTEREST_RATE, CREDIT_YEARS,
capital_cost_other_hvac_ahu
* (PERCENTAGE_CREDIT))
self._yearly_capital_costs.loc[year, 'D5020_lighting_and_branch_wiring'] = -npf.pmt(INTEREST_RATE, CREDIT_YEARS,
capital_cost_lighting
* (PERCENTAGE_CREDIT))
if (year % chapter.item('D3020_heat_generating_systems').lifetime) == 0:
reposition_cost_heating_equipment = peak_heating * chapter.item('D3020_heat_generating_systems').reposition[0] \
* costs_increase
self._yearly_capital_costs.loc[year, 'D3020_heat_generating_systems'] += reposition_cost_heating_equipment
if (year % chapter.item('D3030_cooling_generation_systems').lifetime) == 0:
reposition_cost_cooling_equipment = peak_cooling \
* chapter.item('D3030_cooling_generation_systems').reposition[0] \
* costs_increase
self._yearly_capital_costs.loc[year, 'D3030_cooling_generation_systems'] += reposition_cost_cooling_equipment
if (year % chapter.item('D3080_other_hvac_ahu').lifetime) == 0:
reposition_cost_hvac_ahu = peak_cooling * chapter.item('D3080_other_hvac_ahu').reposition[0] * costs_increase
self._yearly_capital_costs.loc[year, 'D3080_other_hvac_ahu'] = reposition_cost_hvac_ahu
if (year % chapter.item('D5020_lighting_and_branch_wiring').lifetime) == 0:
reposition_cost_lighting = total_floor_area * chapter.item('D5020_lighting_and_branch_wiring').reposition[0] \
* costs_increase
self._yearly_capital_costs.loc[year, 'D5020_lighting_and_branch_wiring'] += reposition_cost_lighting
if self._retrofitting_scenario in (SYSTEM_RETROFIT_AND_PV, SKIN_RETROFIT_AND_SYSTEM_RETROFIT_AND_PV):
if (year % chapter.item('D301010_photovoltaic_system').lifetime) == 0:
self._yearly_capital_costs.loc[year]['D301010_photovoltaic_system'] += surface_pv \
* chapter.item(
'D301010_photovoltaic_system').reposition[0] * costs_increase
capital_cost_skin = capital_cost_opaque + capital_cost_ground + capital_cost_transparent + capital_cost_roof
capital_cost_hvac = (
capital_cost_heating_equipment +
capital_cost_cooling_equipment +
capital_cost_distribution_equipment +
capital_cost_other_hvac_ahu + capital_cost_lighting
)
self._yearly_capital_incomes.loc[0, 'Subsidies construction'] = (
capital_cost_skin * archetype.income.construction_subsidy/100
)
self._yearly_capital_incomes.loc[0, 'Subsidies HVAC'] = capital_cost_hvac * archetype.income.hvac_subsidy/100
self._yearly_capital_incomes.loc[0, 'Subsidies PV'] = capital_cost_pv * archetype.income.photovoltaic_subsidy/100
self._yearly_capital_incomes.fillna(0, inplace=True)
return self._yearly_capital_costs, self._yearly_capital_incomes
def calculate_end_of_life_costs(self):
"""
Calculate end of life costs
:return: pd.DataFrame
"""
archetype = self._archetype
total_floor_area = self._total_floor_area
for year in range(1, self._number_of_years + 1):
price_increase = math.pow(1 + self._consumer_price_index, year)
if year == self._number_of_years:
self._yearly_end_of_life_costs.at[
year, 'End_of_life_costs'] = total_floor_area * archetype.end_of_life_cost * price_increase
self._yearly_end_of_life_costs.fillna(0, inplace=True)
return self._yearly_end_of_life_costs
@property
def calculate_total_operational_costs(self):
"""
Calculate total operational costs
:return: pd.DataFrame
"""
building = self._building
archetype = self._archetype
total_floor_area = self._total_floor_area
factor_residential = total_floor_area / 80
# todo: split the heating between fuels
fixed_gas_cost_year_0 = 0
variable_gas_cost_year_0 = 0
electricity_heating = 0
domestic_hot_water_electricity = 0
if self._fuel_type == 1:
fixed_gas_cost_year_0 = archetype.operational_cost.fuels[1].fixed_monthly * 12 * factor_residential
variable_gas_cost_year_0 = (
(building.heating_consumption[cte.YEAR][0] + building.domestic_hot_water_consumption[cte.YEAR][0]) / 1000 *
archetype.operational_cost.fuels[1].variable[0]
)
if self._fuel_type == 0:
electricity_heating = building.heating_consumption[cte.YEAR][0] / 1000
domestic_hot_water_electricity = building.domestic_hot_water_consumption[cte.YEAR][0] / 1000
electricity_cooling = building.cooling_consumption[cte.YEAR][0] / 1000
electricity_lighting = building.lighting_electrical_demand[cte.YEAR]['insel meb'] / 1000
electricity_plug_loads = building.appliances_electrical_demand[cte.YEAR]['insel meb'] / 1000
electricity_distribution = 0
total_electricity_consumption = (
electricity_heating + electricity_cooling + electricity_lighting + domestic_hot_water_electricity +
electricity_plug_loads + electricity_distribution
)
# todo: change when peak electricity demand is coded. Careful with factor residential
peak_electricity_demand = 100 # self._peak_electricity_demand
variable_electricity_cost_year_0 = total_electricity_consumption * archetype.operational_cost.fuels[0].variable[0]
peak_electricity_cost_year_0 = peak_electricity_demand * archetype.operational_cost.fuels[0].fixed_power * 12
monthly_electricity_cost_year_0 = archetype.operational_cost.fuels[0].fixed_monthly * 12 * factor_residential
for year in range(1, self._number_of_years + 1):
price_increase_electricity = math.pow(1 + self._electricity_price_index, year)
price_increase_peak_electricity = math.pow(1 + self._electricity_peak_index, year)
price_increase_gas = math.pow(1 + self._gas_price_index, year)
self._yearly_operational_costs.at[year, 'Fixed_costs_electricity_peak'] = (
peak_electricity_cost_year_0 * price_increase_peak_electricity
)
self._yearly_operational_costs.at[year, 'Fixed_costs_electricity_monthly'] = (
monthly_electricity_cost_year_0 * price_increase_peak_electricity
)
self._yearly_operational_costs.at[year, 'Variable_costs_electricity'] = float(
variable_electricity_cost_year_0 * price_increase_electricity
)
self._yearly_operational_costs.at[year, 'Fixed_costs_gas'] = fixed_gas_cost_year_0 * price_increase_gas
self._yearly_operational_costs.at[year, 'Variable_costs_gas'] = (
variable_gas_cost_year_0 * price_increase_peak_electricity
)
self._yearly_operational_costs.at[year, 'Variable_costs_gas'] = (
variable_gas_cost_year_0 * price_increase_peak_electricity
)
self._yearly_operational_costs.fillna(0, inplace=True)
return self._yearly_operational_costs
def calculate_total_operational_incomes(self):
"""
Calculate total operational incomes
:return: pd.DataFrame
"""
building = self._building
if cte.YEAR not in building.onsite_electrical_production:
onsite_electricity_production = 0
else:
onsite_electricity_production = building.onsite_electrical_production[cte.YEAR][0]/1000
for year in range(1, self._number_of_years + 1):
price_increase_electricity = math.pow(1 + self._electricity_price_index, year)
# todo: check the adequate assignation of price. Pilar
price_export = 0.075 # archetype.income.electricity_export
self._yearly_operational_incomes.loc[year, 'Incomes electricity'] = (
onsite_electricity_production * price_export * price_increase_electricity
)
self._yearly_operational_incomes.fillna(0, inplace=True)
return self._yearly_operational_incomes
def calculate_total_maintenance_costs(self):
"""
Calculate total maintenance costs
:return: pd.DataFrame
"""
building = self._building
archetype = self._archetype
# todo: change area pv when the variable exists
roof_area = 0
for roof in building.roofs:
roof_area += roof.solid_polygon.area
surface_pv = roof_area * 0.5
peak_heating = building.heating_peak_load[cte.YEAR][cte.HEATING_PEAK_LOAD][0]
peak_cooling = building.cooling_peak_load[cte.YEAR][cte.COOLING_PEAK_LOAD][0]
maintenance_heating_0 = peak_heating * archetype.operational_cost.maintenance_heating
maintenance_cooling_0 = peak_cooling * archetype.operational_cost.maintenance_cooling
maintenance_pv_0 = surface_pv * archetype.operational_cost.maintenance_pv
for year in range(1, self._number_of_years + 1):
costs_increase = math.pow(1 + self._consumer_price_index, year)
self._yearly_maintenance_costs.loc[year, 'Heating_maintenance'] = (
maintenance_heating_0 * costs_increase
)
self._yearly_maintenance_costs.loc[year, 'Cooling_maintenance'] = (
maintenance_cooling_0 * costs_increase
)
self._yearly_maintenance_costs.loc[year, 'PV_maintenance'] = (
maintenance_pv_0 * costs_increase
)
self._yearly_maintenance_costs.fillna(0, inplace=True)
return self._yearly_maintenance_costs