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Muhammad Eliasinul Islam edited this page Jan 22, 2025 · 55 revisions

1. Project Overview

The model will identify technological pathways to meet BC's energy decarbonization targets through electrification and utilization of alternate energy carriers (e.g. hydrogen) while considering the water, food and land-use implications of expanding the electricity supply in British Columbia (BC), Canada. The BC CLEWS model comprises three major components: water, food, energy (WFE), and their interactions with the BC climate (CO2 emissions). Most of the information on this wiki page is borrowed from the paper of the modelling team who developed the based model. Related publications related to this model are [1],[2].

2. Model Overview

This section provides general background information on the model's framework, the temporal and spatial resolution, and the technologies and commodities (fuels) used in the structure of the model.

an upgraded version of this model is under development to incorporate the following features:

  • automate and streamline the input data supply chain and preparation.
  • automate the temporal resolution scaling with temporal clustering approach.
  • advancing hydropower and storage modelling. Updates could be tracked via BC_Combined_Modelling

2.1 Modelling Framework

The BC Nexus Model is built using the CLEWS (Climate, Land, Energy, Water Systems) framework and platform, which is an extension of the OSeMOSYS (the Open-Source energy MOdelling SYStem) energy modelling system. OSeMOSYS is a bottom-up linear modelling framework designed for long-term energy system cost optimization in specific regions. More information can be found at CLEWS GitHub page and OSeMOSYS page.

2.2 Spatial Resolution

Currently, the model spatial resolution is limited to British Columbia (BC)'s geographical borders.

Example: Powerplant aggregation in the spatial region of BC

2.3 Temporal Resolution

"In the BC Nexus model, temporal representation is a user-defined option and can be changed based on inquiry. This is especially important in the case of variable renewable energy (VRE) sources such as solar and wind, where the production at different times of the year and site locations are diverse" [1]. To represent the energy demand and supply, temporal resolution defines by two elements of "time slices" and "seasons" in the model. The demand and supply for other systems, e.g. agriculture and water, are on an annual basis.

In the reference version of the model (BASE Model), for the energy system, "temporal resolutions are simplified to the four seasons per year (Spring, Summer, Fall and Winter) and two day-splits of day and night to reduce computational complexity," as summarized below [1].

Seasons Spring
(Mar 20-Jun19)
Summer
(Jun 20-Sep 21)
Fall
(Sep 22-Dec 20)
Winter
(Dec 21-Mar 19)
Seasonal days 93.00 93.00 90.00 89.00

To better capture time-sensitive parameters such daily fluctuation of renewable energy sources, each season presents as a single 24-hour day in the model, as shown below. Note that the information below is based on BC's specification in the base model and can be revised by a user based on their specific inquiries and assumptions:

Time slicing Day Night Day Night Day Night Day Night
Ave. Seasonal hrs. 13.90 10.10 15.36 8.64 10.00 14.00 8.75 15.25
Daylight hours
start (a.m.), end (p.m.)
6 20 6 21 8 18 8 17

Although it looks like blocks due to high-density of datapoints in plots, but it is actually a bit different in representation. To explain the actual vs downscaled resolution of the load profile a typical day (24hrs) load profile has been shown (assume it as a zoomed in version of the plot above) below :

VRE Site Timeslice:

2.4 Naming Conventions

The following abbreviation and naming conventions are used to represent the commodities (e.g. fuels) and technologies in the model.

Abbreviation/
naming conventions
Description
IND 'Industry',
RES 'Residential',
COM 'Commercial',
AGR 'Agricultural',
TRA 'Transport',
OTH 'Other',
BIO 'Biomass',
COA 'Coal',
CRU 'Crude oil',
DSL 'Diesel',
ELC 'Electricity'
ELC001 'Electricity from power plants',
ELC002 'Electricity from transmission',
ELCB01 'Electricity from power plants in region B',
ELCB02 'Electricity from transmission in region B',
GSL 'Gasoline',
HFO 'Heavy fuel oil',
NGS 'Natural gas',
KER 'Kerosene',
LPG 'Liquefied petroleum gas',
OHC 'Other hydrocarbons',
GEO 'Geothermal',
HYD 'Hydropower',
SOL 'Solar',
WND 'Wind',
CHC 'Charcoal',
PCK 'Petroleum coke',
JFL 'Jet fuel',
URN 'Uranium',
ALF 'Alfalfa',
WHE 'Wheat',
RAP 'Rapeseed',
OAT 'Oat',
BRL 'Barley',
PEA 'Dry pea',
MAI 'Maize',
RYE 'Rye',
PWT 'White potato'
RYE Rye'
PWT 'White potato'
DEM 'Demand'
PWR 'Power plant'
LND 'Land'
GWT 'Groundwater'
SUR 'Surface water'
IMP 'Import'
EXP 'Export'
MIN 'Represent non-renewable
resource mining technologies (e.g. coal, uranium)'
RNW 'Represent renewable
resource mining technologies (e.g. solar, water)'
RPP 'Refined Petroleum Products'

2.5 Commodities (Fuels)

Any input element (such as fuels, water, and land) is going to be consumed by technology or if they feed a final demand. Also, demands for energy services are defined as fuels; e.g., a heating demand would be defined as a fuel. The list of commodities included in the base model is as follows and also can be located in the Resources folder under the file name FUEL.csv:

Commodity (Fuel) Description
AGRDSL DSL input in AGR
AGRELCB02 ELC input in AGR
AGRNGS NGS input in AGR
AGRWATBC1 Agricultural water for irrigation.
BIO Biomass
COA Coal
COMBIO BIO input in COM
COMELCB02 ELC input in COM
COMKER KER input in COM
COMNGS NGS input in COM
CRPALF Crop ALF
CRPBRL Crop BRL
CRPMAI Crop MAI
CRPOAT Crop OAT
CRPOTH Crop OTH
CRPPEA Crop PEA
CRPPTW Crop PTW
CRPRAP Crop RAP
CRPRYE Crop RYE
CRPWHE Crop WHE
CRU Cruel oil
DSL Diesel
ELCB01 Electricity from power plants
ELCB02 Electricity from the transmission
GEO Geothermal
GSL Gasoline
HFO Heavy fuel oil
HYD Hydro
INDBIO BIO input in IND
INDDSL DSL input In IND
INDELCB02 ELC input in IND
INDNGS NGS input in IND
JFL Jet Fuel
KER Kerosene
LALFHIBC1 Land resource commodity for crop combo ALF Irrigation
LALFHRBC1 Land resource commodity for crop combo ALF Rain-fed
LALFIIBC1 Land resource commodity for crop combo ALF Irrigation
LALFIRBC1 Land resource commodity for crop combo ALF Rain-fed
LALFLRBC1 Land resource commodity for crop combo ALF Rain-fed
LBARBC1 Barren and sparsely vegetated land commodity in BC
LBC1 Land resource in BC1.
LBLTBC1 Built-up land commodity in BC1.
LBRLHIBC1 Land resource commodity for crop combo BRL Irrigation
LBRLHRBC1 Land resource commodity for crop combo BRL Rain-fed
LBRLIIBC1 Land resource commodity for crop combo BRL Irrigation
LBRLIRBC1 Land resource commodity for crop combo BRL Rain-fed
LBRLLRBC1 Land resource commodity for crop combo BRL Rain-fed
LFORBC1 Forest land commodity in BC1.
LGRSBC1 Grassland & woodland commodity in BC1.
LMAIHIBC1 Land resource commodity for crop combo MAI Irrigation
LMAIHRBC1 Land resource commodity for crop combo MAI Rain-fed
LMAIIIBC1 Land resource commodity for crop combo MAI Irrigation
LMAIIRBC1 Land resource commodity for crop combo MAI Rain-fed
LMAILRBC1 Land resource commodity for crop combo MAI Rain-fed
LND4PWR Land density used for power generation based on technology
LOATHIBC1 Land resource commodity for crop combo OAT Irrigation
LOATHRBC1 Land resource commodity for crop combo OAT Rain-fed
LOATIIBC1 Land resource commodity for crop combo OAT Irrigation
LOATIRBC1 Land resource commodity for crop combo OAT Rain-fed
LOATLRBC1 Land resource commodity for crop combo OAT Rain-fed
LOTHBC1O the agricultural land commodity in BC1.
LOTHHIBC1 Land resource commodity for crop combo OTH Irrigation
LOTHHRBC1 Land resource commodity for crop combo OTH Rain-fed
LOTHIIBC1 Land resource commodity for crop combo OTH Irrigation
LOTHIRBC1 Land resource commodity for crop combo OTH Rain-fed
LOTHLRBC1 Land resource commodity for crop combo OTH Rain-fed
LPEAHIBC1 Land resource commodity for crop combo PEA Irrigation
LPEAHRBC1 Land resource commodity for crop combo PEA Rain-fed
LPEAIIBC1 Land resource commodity for crop combo PEA Irrigation
LPEAIRBC1 Land resource commodity for crop combo PEA Rain-fed
LPEALRBC1 Land resource commodity for crop combo PEA Rain-fed
LPTWHIBC1 Land resource commodity for crop combo PTW Irrigation
LPTWHRBC1 Land resource commodity for crop combo PTW Rain-fed
LPTWIIBC1 Land resource commodity for crop combo PTW Irrigation
LPTWIRBC1 Land resource commodity for crop combo PTW Rain-fed
LPTWLRBC1 Land resource commodity for crop combo PTW Rain-fed
LRAPHIBC1 Land resource commodity for crop combo RAP Irrigation
LRAPHRBC1 Land resource commodity for crop combo RAP Rain-fed
LRAPIIBC1 Land resource commodity for crop combo RAP Irrigation
LRAPIRBC1 Land resource commodity for crop combo RAP Rain-fed
LRAPLRBC1 Land resource commodity for crop combo RAP Rain-fed
LRYEHIBC1 Land resource commodity for crop combo RYE Irrigation
LRYEHRBC1 Land resource commodity for crop combo RYE Rain-fed
LRYEIIBC1 Land resource commodity for crop combo RYE Irrigation
LRYEIRBC1 Land resource commodity for crop combo RYE Rain-fed
LRYELRBC1 Land resource commodity for crop combo RYE Rain-fed
LWATBC1 Water bodies commodity in BC1.
LWHEHIBC1 Land resource commodity for crop combo WHE Irrigation
LWHEHRBC1 Land resource commodity for crop combo WHE Rain-fed
LWHEIIBC1 Land resource commodity for crop combo WHE Irrigation
LWHEIRBC1 Land resource commodity for crop combo WHE Rain-fed
LWHELRBC1 Land resource commodity for crop combo WHE Rain-fed
NGS Natural gas
PUBWATBC1 Water lost to evapotranspiration.
PWRBIO BIO input to PWR
PWRGEO GEO input to PWR
PWRHYD HYD input to PWR
PWRNGS NGS input to PWR
PWRSOL SOL input to PWR
PWRURN URN input to PWR
PWRWATBC1 WAT input to PWR
PWRWND WND input to PWR
RESBIO BIO
RESELCB02 ELC input in RES
RESKER KER input in RES
RESNGS NGS input in RES
SOL Solar
TRABIO BIO input in the Transportation sector
TRADSL DSL input in the Transportation sector
TRAELCB02 ELC input in the Transportation sector
TRAGSL GSL input in the Transportation sector
TRAHFO HFO input in the Transportation sector
TRAJFL JFL input in the Transportation sector
TRALPG LPG input in the Transportation sector
TRANGS NGS input in the Transportation sector
URN Uranium
WND Wind
WTREVTBC1 Water lost to evapotranspiration.
WTRGRCBC1 Water lost to evapotranspiration.
WTRPRCBC1 Agricultural water for irrigation.
WTRSURBC1 Agricultural water for irrigation.

2.6 Technologies

In CLEWS, technology includes any element that converts or consumes an input commodity (e.g. fuels or land) into another form (output), such as electricity or crops.

The list of technologies defined in the model can be located in the "Resources" folder under the file name "TECHNOLOGY.csv".
Name (Abbreviation) Description
DEMAGRDSL Demand technology for DSL in Agriculture
DEMAGRELCB02 Demand technology for electricity in Agriculture
DEMAGRGWTBC1 Agricultural groundwater supply.
DEMAGRNGS Demand technology for NGS in Agriculture
DEMAGRSURBC1 Agricultural groundwater supply
DEMCOMBIO Demand technology for BIO in the Commercial sector
DEMCOMELCB02 Demand technology for electricity in the Commercial sector
DEMCOMKER Demand technology for KER in the Commercial sector
DEMCOMNGS Demand technology for NGS in the Commercial sector
DEMINDBIO Demand technology for BIO in the industry sector
DEMINDDSL Demand technology for DSL in the industry sector
DEMINDELCB02 Demand technology for electricity in the industry sector
DEMINDNGS Demand technology for NGS in the industry sector
DEMPUBGWTBC1 Public demand for groundwater
DEMPUBSURBC1 Public demand for surface water
DEMPWRBIO Demand technology for BIO in the power sector
DEMPWRGEO Demand technology for GEO in the power sector
DEMPWRHYD Demand technology for HYD in the power sector
DEMPWRNGS Demand technology for NGS in the power sector
DEMPWRSOL Demand technology for SOL in the power sector
DEMPWRSURBC1 Demand technology for surface water in the power sector
DEMPWRURN Demand technology for URN in the power sector
DEMPWRWND Demand technology for WND in the power sector
DEMRESBIO Demand technology for BIO in the Residential sector
DEMRESELCB02 Demand technology for electricity in the Residential sector
DEMRESKER Demand technology for KER in the Residential sector
DEMRESNGS Demand technology for NGS in the Residential sector
DEMTRABIO Demand technology for BIO in the transportation sector
DEMTRADSL Demand technology for DSL in the transportation sector
DEMTRAELCB02 Demand technology for electricity in the transportation sector
DEMTRAGSL Demand technology for GSL in the transportation sector
DEMTRAHFO Demand technology for HFO in the transportation sector
DEMTRAJFL Demand technology for JFL in the transportation sector
DEMTRALPG Demand technology for LPG in the transportation sector
DEMTRANGS Demand technology for NGS in the transportation sector
EXPBIO Export BIO
EXPCOA Export COA
EXPCRU Export CRU
EXPNGS Export NGS
IMPCOA Import COA
IMPCRU Import CRU
IMPDSL Import DSL
IMPGSL Import GSL
IMPHFO Import HFO
IMPJFL Import JFL
IMPKER Import KER
IMPLPG Import LPG
LNDAGRBC1C01 Land resource in BC1.
LNDAGRBC1C02 Land resource in BC1.
LNDAGRBC1C03 Land resource in BC1.
LNDAGRBC1C04 Land resource in BC1.
LNDAGRBC1C05 Land resource in BC1.
LNDAGRBC1C06 Land resource in BC1.
LNDAGRBC1C07 Land resource in BC1.
LNDALFHIBC1 Land resource technology for crop combo ALF Irrigation
LNDALFHRBC1 Land resource technology for crop combo ALF Rain-fed
LNDALFIIBC1 Land resource technology for crop combo ALF Irrigation
LNDALFIRBC1 Land resource technology for crop combo ALF Rain-fed
LNDALFLRBC1 Land resource technology for crop combo ALF Rain-fed
LNDBARBC1 Barren and sparsely vegetated land technology in BC
LNDBLTBC1 Built-up land technology in BC1.
LNDBRLHIBC1 Land resource technology for crop combo BRL Irrigation
LNDBRLHRBC1 Land resource technology for crop combo BRL Rain-fed
LNDBRLIIBC1 Land resource technology for crop combo BRL Irrigation
LNDBRLIRBC1 Land resource technology for crop combo BRL Rain-fed
LNDBRLLRBC1 Land resource technology for crop combo BRL Rain-fed
LNDFORBC1 Forest land technology in BC1.
LNDGRSBC1 Grassland & woodland technology in BC1.
LNDMAIHIBC1 Land resource technology for crop combo MAI Irrigation
LNDMAIHRBC1 Land resource technology for crop combo MAI Rain-fed
LNDMAIIIBC1 Land resource technology for crop combo MAI Irrigation
LNDMAIIRBC1 Land resource technology for crop combo MAI Rain-fed
LNDMAILRBC1 Land resource technology for crop combo MAI Rain-fed
LNDOATHIBC1 Land resource technology for crop combo OAT Irrigation
LNDOATHRBC1 Land resource technology for crop combo OAT Rain-fed
LNDOATIIBC1 Land resource technology for crop combo OAT Irrigation
LNDOATIRBC1 Land resource technology for crop combo OAT Rain-fed
LNDOATLRBC1 Land resource technology for crop combo OAT Rain-fed
LNDOTHBC1O agricultural land technology in BC1.
LNDOTHHIBC1 Land resource technology for crop combo OTH Irrigation
LNDOTHHRBC1 Land resource technology for crop combo OTH Rain-fed
LNDOTHIIBC1 Land resource technology for crop combo OTH Irrigation
LNDOTHIRBC1 Land resource technology for crop combo OTH Rain-fed
LNDOTHLRBC1 Land resource technology for crop combo OTH Rain-fed
LNDPEAHIBC1 Land resource technology for crop combo PEA Irrigation
LNDPEAHRBC1 Land resource technology for crop combo PEA Rain-fed
LNDPEAIIBC1 Land resource technology for crop combo PEA Irrigation
LNDPEAIRBC1 Land resource technology for crop combo PEA Rain-fed
LNDPEALRBC1 Land resource technology for crop combo PEA Rain-fed
LNDPTWHIBC1 Land resource technology for crop combo PTW Irrigation
LNDPTWHRBC1 Land resource technology for crop combo PTW Rain-fed
LNDPTWIIBC1 Land resource technology for crop combo PTW Irrigation
LNDPTWIRBC1 Land resource technology for crop combo PTW Rain-fed
LNDPTWLRBC1 Land resource technology for crop combo PTW Rain-fed
LNDRAPHIBC1 Land resource technology for crop combo RAP Irrigation
LNDRAPHRBC1 Land resource technology for crop combo RAP Rain-fed
LNDRAPIIBC1 Land resource technology for crop combo RAP Irrigation
LNDRAPIRBC1 Land resource technology for crop combo RAP Rain-fed
LNDRAPLRBC1 Land resource technology for crop combo RAP Rain-fed
LNDRYEHIBC1 Land resource technology for crop combo RYE Irrigation
LNDRYEHRBC1 Land resource technology for crop combo RYE Rain-fed
LNDRYEIIBC1 Land resource technology for crop combo RYE Irrigation
LNDRYEIRBC1 Land resource technology for crop combo RYE Rain-fed
LNDRYELRBC1 Land resource technology for crop combo RYE Rain-fed
LNDWATBC1 Water bodies technology in BC1.
LNDWHEHIBC1 Land resource technology for crop combo WHE Irrigation
LNDWHEHRBC1 Land resource technology for crop combo WHE Rain-fed
LNDWHEIIBC1 Land resource technology for crop combo WHE Irrigation
LNDWHEIRBC1 Land resource technology for crop combo WHE Rain-fed
LNDWHELRBC1 Land resource technology for crop combo WHE Rain-fed
MINCOA Mining supply COA
MINCRU Mining supply CRU
MINLNDBC1 Land supply in BC
MINNGS Mining supply NGS
MINPRCBC1 Agricultural groundwater supply
MINURN Mining supply URN
PWRBIOB01 Bio plant on B grid, PR Region (49 MW).
PWRBIOB02 Bio plant on B grid, PG-J Region (184 MW).
PWRBIOB03 Bio plant on B grid, VI Region (55 MW).
PWRBIOB04 Bio plant on B grid, K-SE Region (270 MW).
PWRBIOB05 Bio plant on B grid, LM Region (160 MW).
PWRBIOB06 Bio plant on B grid for future expansions, (? MW).
PWRGEOB01 Geothermal plant (Steam technology) on B grid, (? M)
PWRGEOB02 Geothermal plant (Steam technology) on B grid, (? M)
PWRGEOB03 Geothermal plant (Steam technology) on B grid, (? M)
PWRHYDB01 Large hydro plant on B grid, PR Region (2730 MW).
PWRHYDB02 Meduim-size hydro plant on B grid, PR Region (694)
PWRHYDB03 Aggregated hydro plants on B grid, N Region (312 M)
PWRHYDB04 Large hydro plant on B grid, PR-G Region (960 MW)
PWRHYDB05 Aggregated hydro plants on B grid, PR_G Region (58
PWRHYDB06 Large hydro plant on B grid, PG-J Region (2746 MW)
PWRHYDB07 Aggregated hydro plants on B grid, PG-J Region (36
PWRHYDB08 Aggregated hydro plants on B grid, VI Region (595.5
PWRHYDB09 Aggregated hydro plants on B grid, LM Region (2363
PWRHYDB10 Large hydro plant on B grid, K-SE Region (2480 MW)
PWRHYDB11 Large hydro plant on B grid, K-SE Region (805 MW)
PWRHYDB12 Aggregated hydro plants on B grid, K-SE Region (27
PWRHYDB13 Hydro plants on B grid for future expansions, (? MW)
PWRNGSB01 Aggregated Natural gas power stations on grid B.
PWRSOLB01 Solar plant on B grid, K-Se Region (1 MW).
PWRTRNB01 Power transmission grid B
PWRURNB01 Nuclear plant (OT technology) on B grid, (? MW).
PWRWNDB01 wind plant on B grid, PR Region (144 MW).
PWRWNDB02 wind plant on B grid, PR Region (102 MW).
PWRWNDB03 wind plant on B grid, PR Region (142 MW).
PWRWNDB04 wind plant on B grid, PR Region (180 MW).
PWRWNDB05 wind plant on B grid, PR Region (15 MW).
PWRWNDB06 wind plant on B grid, VI Region (99 MW).
PWRWNDB07 wind plant on B grid, K-SE Region (15 MW).
PWRWNDB08 wind plant on B grid, K-SE Region (15 MW).
PWRWNDB09 Wind plant on B grid for future expansions, (? MW).
PWRWNDB10 Wind plant on B grid for future expansions, (? MW).
PWRWNDB11 Wind plant on B grid for future expansions, (? MW).

2.7 Units

The following table summarizes the unit values used to specify each element in the model:

Parameter Units in Model
energy(demand, use, and production) Petajoules(PJ)
Residual capacity (existing capacity) Gigawatts (GW)
Capital costs '$/Kilowatt(kW)
Fixed costs '$/Kilowatt(kW) per year
Variable costs '$/Gigajoules(GJ)
Availability factor %
Capacity factor %
Capacity to activity Unit $PJ\over(PJ/yr)$
Emissions tons
Emission activity ratio kg/GJ = tons/PJ
Emission penalty '$/kg = million $/tons
Land 1000 square kilometres
Water billion cubic meter
Land-use intensity (1000 square kilometre)/PJ
Reserve margin %

2.8 Mode of Operation

The modes of operation refer to the different ways a technology can operate, determined by the mix of input fuels it can use and output products it can provide. For instance, a CHP power plant may switch from generating heat to generating electricity or both under different modes of operation.

The mode of operation has been defined vide the input datafile "MODE_OF_OPERATION.csv".

Mode of Operation Description
1 ALFHI
and technology activities in the energy sector
2 ALFII
3 ALFHR
4 ALFIR
5 ALFLR
6 BARHI
7 BARII
8 BARHR
9 BARIR
10 BARLR
11 MAIHI
12 MAIII
13 MAIHR
14 MAIIR
15 MAILR
16 OATHI
17 OATII
18 OATHR
19 OATIR
20 OATLR
21 OTHHI
22 OTHII
23 OTHHR
24 OTHIR
25 OTHLR
26 PEAHI
27 PEAII
28 PEAHR
29 PEAIR
30 PEALR
31 PTWHI
32 PTWII
33 PTWHR
34 PTWIR
35 PTWLR
36 RAPHI
37 RAPII
38 RAPHR
39 RAPIR
40 RAPLR
41 RYEHI
42 RYEII
43 RYEHR
44 RYEIR
45 RYELR
46 WHEHI
47 WHEII
48 WHEHR
49 WHEIR
50 WHELR
51 Barren and sparsely vegetated land
52 Forest land
53 Grassland & woodland
54 Built-up land
55 Water bodies
56 Other agricultural lands

Note for Abbreviation in the agriculture sector:

  • HI – High Irrigation
  • HR – High Rainfall
  • II – Intermediate Irrigation
  • IR - Intermediate Rainfall
  • LR - Low Rainfall

Model Structure

Model structure explained here.

Model Shell

How to Run the Model

Step-by-Step guideline here

BC Nexus Workflow

References

[1] Electrification Policy Impacts on Land System in British Columbia, Canada; Nastaran Arianpoo, Md Eliasinul Islam, Andrew S. Wright, and Taco Niet, Aug 2024

[2] ELECTRIFICATION POLICY IMPACTS ON LAND SYSTEM IN BRITISH COLUMBIA, CANADA; Nastaran Arianpoo, Andrew S. Wright, and Taco Niet, March 2021

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