Update GenX cases LP to MIP

GenX/README.md

@@ -16,3 +16,7 @@ GenX is licensed under the [GPL v2 license](https://github.com/GenXProject/GenX.
 
 The example cases in this directory are taken from
 [https://github.com/GenXProject/GenX.jl/tree/v0.4.1/example_systems](https://github.com/GenXProject/GenX.jl/tree/v0.4.1/example_systems).
+
+Cases were modified. Main change is setting `UCommit: 1` to consider unit commitment of operation
+variables, which is the source of integrality in GenX. Other modifications include changes in
+HiGHS parameters to generate the mps files quicker and disabling extra solves for writing prices.

GenX/cases/10_IEEE_9_bus_DC_OPF/settings/genx_settings.yml

@@ -6,6 +6,7 @@ CO2Cap: 0 # CO2 emissions cap; 0 = not active (no CO2 emission limit); 1 = mass-
 StorageLosses: 0 # Energy Share Requirement and CO2 constraints account for energy lost; 0 = not active (DO NOT account for energy lost); 1 = active systemwide (DO account for energy lost)
 MinCapReq: 0  # Activate minimum technology carveout constraints; 0 = not active; 1 = active
 MaxCapReq: 0  # Activate maximum technology carveout constraints; 0 = not active; 1 = active
-WriteShadowPrices: 1 # Write shadow prices of LP or relaxed MILP; 0 = not active; 1 = active
+WriteShadowPrices: 0 # Write shadow prices of LP or relaxed MILP; 0 = not active; 1 = active
 DC_OPF: 1 #Flag for running DC-OPF: 0 = not active (transport model); 1 = active
 WriteOutputs: "annual"
+UCommit: 1 # Unit committment of thermal power plants; 0 = not active; 1 = active using integer clestering; 2 = active using linearized clustering

GenX/cases/10_IEEE_9_bus_DC_OPF/settings/highs_settings.yml

@@ -2,9 +2,9 @@
 # Common solver settings
 Feasib_Tol: 1.0e-05        # Primal feasibility tolerance # [type: double, advanced: false, range: [1e-10, inf], default: 1e-07]
 Optimal_Tol: 1.0e-05       # Dual feasibility tolerance # [type: double, advanced: false, range: [1e-10, inf], default: 1e-07]
-TimeLimit: 1.0e23              # Time limit # [type: double, advanced: false, range: [0, inf], default: inf]
-Pre_Solve: choose          # Presolve option: "off", "choose" or "on" # [type: string, advanced: false, default: "choose"]
-Method: ipm             #HiGHS-specific solver settings # Solver option: "simplex", "choose" or "ipm" # [type: string, advanced: false, default: "choose"]
+TimeLimit: 5.0              # Time limit # [type: double, advanced: false, range: [0, inf], default: inf]
+Pre_Solve: off          # Presolve option: "off", "choose" or "on" # [type: string, advanced: false, default: "choose"]
+Method: choose             #HiGHS-specific solver settings # Solver option: "simplex", "choose" or "ipm" # [type: string, advanced: false, default: "choose"]
 
 # run the crossover routine for ipx
 # [type: string, advanced: "on", range: {"off", "on"}, default: "off"]

GenX/cases/1_three_zones/settings/genx_settings.yml

@@ -7,7 +7,7 @@ StorageLosses: 1 # Energy Share Requirement and CO2 constraints account for ener
 MinCapReq: 1  # Activate minimum technology carveout constraints; 0 = not active; 1 = active
 MaxCapReq: 0  # Activate maximum technology carveout constraints; 0 = not active; 1 = active
 ParameterScale: 1 # Turn on parameter scaling wherein demand, capacity and power variables are defined in GW rather than MW. 0 = not active; 1 = active systemwide
-WriteShadowPrices: 1 # Write shadow prices of LP or relaxed MILP; 0 = not active; 1 = active
-UCommit: 2 # Unit committment of thermal power plants; 0 = not active; 1 = active using integer clestering; 2 = active using linearized clustering
+WriteShadowPrices: 0 # Write shadow prices of LP or relaxed MILP; 0 = not active; 1 = active
+UCommit: 1 # Unit committment of thermal power plants; 0 = not active; 1 = active using integer clestering; 2 = active using linearized clustering
 TimeDomainReduction: 1 # Time domain reduce (i.e. cluster) inputs based on Demand_data.csv, Generators_variability.csv, and Fuels_data.csv; 0 = not active (use input data as provided); 0 = active (cluster input data, or use data that has already been clustered)
 OutputFullTimeSeries: 1

GenX/cases/1_three_zones/settings/highs_settings.yml

@@ -2,9 +2,9 @@
 # Common solver settings
 Feasib_Tol: 1.0e-05        # Primal feasibility tolerance # [type: double, advanced: false, range: [1e-10, inf], default: 1e-07]
 Optimal_Tol: 1.0e-05       # Dual feasibility tolerance # [type: double, advanced: false, range: [1e-10, inf], default: 1e-07]
-TimeLimit: 1.0e23             # Time limit # [type: double, advanced: false, range: [0, inf], default: inf]
-Pre_Solve: choose          # Presolve option: "off", "choose" or "on" # [type: string, advanced: false, default: "choose"]
-Method: ipm           #HiGHS-specific solver settings # Solver option: "simplex", "choose" or "ipm" # [type: string, advanced: false, default: "choose"]
+TimeLimit: 5.0             # Time limit # [type: double, advanced: false, range: [0, inf], default: inf]
+Pre_Solve: off          # Presolve option: "off", "choose" or "on" # [type: string, advanced: false, default: "choose"]
+Method: choose           #HiGHS-specific solver settings # Solver option: "simplex", "choose" or "ipm" # [type: string, advanced: false, default: "choose"]
 
 # run the crossover routine for ipx
 # [type: string, advanced: "on", range: {"off", "on"}, default: "off"]

GenX/cases/2_three_zones_w_electrolyzer/settings/genx_settings.yml

@@ -1,9 +1,9 @@
 Trans_Loss_Segments: 1 # Number of segments used in piecewise linear approximation of transmission losses; 1 = linear, >2 = piecewise quadratic
-UCommit: 2 # Unit committment of thermal power plants; 0 = not active; 1 = active using integer clestering; 2 = active using linearized clustering
+UCommit: 1 # Unit committment of thermal power plants; 0 = not active; 1 = active using integer clestering; 2 = active using linearized clustering
 StorageLosses: 1 # Energy Share Requirement and CO2 constraints account for energy lost; 0 = not active (DO NOT account for energy lost); 1 = active systemwide (DO account for energy lost)
 HydrogenHourlyMatching: 1 # Hydrogen electrolyzer contribution to hourly supply matching required
 ParameterScale: 1 # Turn on parameter scaling wherein demand, capacity and power variables are defined in GW rather than MW. 0 = not active; 1 = active systemwide
 TimeDomainReduction: 1 # Time domain reduce (i.e. cluster) inputs based on Demand_data.csv, Generators_variability.csv, and Fuels_data.csv; 0 = not active (use input data as provided); 0 = active (cluster input data, or use data that has already been clustered)
-WriteShadowPrices: 1 # Write shadow prices of LP or relaxed MILP; 0 = not active; 1 = active
+WriteShadowPrices: 0 # Write shadow prices of LP or relaxed MILP; 0 = not active; 1 = active
 HydrogenMinimumProduction: 1 # Hydrogen production requirement; 0 = not active; 1 = active, meet regional level H2 production requirements
 HourlyMatching: 1 # Hourly supply matching required

GenX/cases/2_three_zones_w_electrolyzer/settings/highs_settings.yml

@@ -2,9 +2,9 @@
 # Common solver settings
 Feasib_Tol: 1.0e-04        # Primal feasibility tolerance # [type: double, advanced: false, range: [1e-10, inf], default: 1e-07]
 Optimal_Tol: 1.0e-04       # Dual feasibility tolerance # [type: double, advanced: false, range: [1e-10, inf], default: 1e-07]
-TimeLimit: 1.0e23             # Time limit # [type: double, advanced: false, range: [0, inf], default: inf]
-Pre_Solve: on          # Presolve option: "off", "choose" or "on" # [type: string, advanced: false, default: "choose"]
-Method: ipm             #HiGHS-specific solver settings # Solver option: "simplex", "choose" or "ipm" # [type: string, advanced: false, default: "choose"]
+TimeLimit: 5.0             # Time limit # [type: double, advanced: false, range: [0, inf], default: inf]
+Pre_Solve: off             # Presolve option: "off", "choose" or "on" # [type: string, advanced: false, default: "choose"]
+Method: choose             # HiGHS-specific solver settings # Solver option: "simplex", "choose" or "ipm" # [type: string, advanced: false, default: "choose"]
 
 #highs-specific solver settings
 

GenX/cases/3_three_zones_w_co2_capture/settings/genx_settings.yml

@@ -7,6 +7,6 @@ StorageLosses: 1 # Energy Share Requirement and CO2 constraints account for ener
 MinCapReq: 1  # Activate minimum technology carveout constraints; 0 = not active; 1 = active
 MaxCapReq: 0  # Activate maximum technology carveout constraints; 0 = not active; 1 = active
 ParameterScale: 1 # Turn on parameter scaling wherein demand, capacity and power variables are defined in GW rather than MW. 0 = not active; 1 = active systemwide
-WriteShadowPrices: 1 # Write shadow prices of LP or relaxed MILP; 0 = not active; 1 = active
-UCommit: 2 # Unit committment of thermal power plants; 0 = not active; 1 = active using integer clestering; 2 = active using linearized clustering
+WriteShadowPrices: 0 # Write shadow prices of LP or relaxed MILP; 0 = not active; 1 = active
+UCommit: 1 # Unit committment of thermal power plants; 0 = not active; 1 = active using integer clestering; 2 = active using linearized clustering
 TimeDomainReduction: 1 # Time domain reduce (i.e. cluster) inputs based on Demand_data.csv, Generators_variability.csv, and Fuels_data.csv; 0 = not active (use input data as provided); 0 = active (cluster input data, or use data that has already been clustered) 

GenX/cases/3_three_zones_w_co2_capture/settings/highs_settings.yml

@@ -2,9 +2,9 @@
 # Common solver settings
 Feasib_Tol: 1.0e-05        # Primal feasibility tolerance # [type: double, advanced: false, range: [1e-10, inf], default: 1e-07]
 Optimal_Tol: 1.0e-05       # Dual feasibility tolerance # [type: double, advanced: false, range: [1e-10, inf], default: 1e-07]
-TimeLimit: 1.0e23             # Time limit # [type: double, advanced: false, range: [0, inf], default: inf]
-Pre_Solve: choose          # Presolve option: "off", "choose" or "on" # [type: string, advanced: false, default: "choose"]
-Method: ipm           #HiGHS-specific solver settings # Solver option: "simplex", "choose" or "ipm" # [type: string, advanced: false, default: "choose"]
+TimeLimit: 5.0             # Time limit # [type: double, advanced: false, range: [0, inf], default: inf]
+Pre_Solve: off             # Presolve option: "off", "choose" or "on" # [type: string, advanced: false, default: "choose"]
+Method: choose             #HiGHS-specific solver settings # Solver option: "simplex", "choose" or "ipm" # [type: string, advanced: false, default: "choose"]
 
 # run the crossover routine for ipx
 # [type: string, advanced: "on", range: {"off", "on"}, default: "off"]

GenX/cases/4_three_zones_w_policies_slack/settings/genx_settings.yml

@@ -7,6 +7,6 @@ StorageLosses: 1 # Energy Share Requirement and CO2 constraints account for ener
 MinCapReq: 1  # Activate minimum technology carveout constraints; 0 = not active; 1 = active
 MaxCapReq: 1  # Activate maximum technology carveout constraints; 0 = not active; 1 = active
 ParameterScale: 1 # Turn on parameter scaling wherein demand, capacity and power variables are defined in GW rather than MW. 0 = not active; 1 = active systemwide
-WriteShadowPrices: 1 # Write shadow prices of LP or relaxed MILP; 0 = not active; 1 = active
-UCommit: 2 # Unit committment of thermal power plants; 0 = not active; 1 = active using integer clestering; 2 = active using linearized clustering
+WriteShadowPrices: 0 # Write shadow prices of LP or relaxed MILP; 0 = not active; 1 = active
+UCommit: 1 # Unit committment of thermal power plants; 0 = not active; 1 = active using integer clestering; 2 = active using linearized clustering
 TimeDomainReduction: 1 # Time domain reduce (i.e. cluster) inputs based on Demand_data.csv, Generators_variability.csv, and Fuels_data.csv; 0 = not active (use input data as provided); 0 = active (cluster input data, or use data that has already been clustered)

GenX/cases/4_three_zones_w_policies_slack/settings/highs_settings.yml

@@ -2,9 +2,9 @@
 # Common solver settings
 Feasib_Tol: 1.0e-05        # Primal feasibility tolerance # [type: double, advanced: false, range: [1e-10, inf], default: 1e-07]
 Optimal_Tol: 1.0e-05       # Dual feasibility tolerance # [type: double, advanced: false, range: [1e-10, inf], default: 1e-07]
-TimeLimit: 1.0e23             # Time limit # [type: double, advanced: false, range: [0, inf], default: inf]
-Pre_Solve: choose          # Presolve option: "off", "choose" or "on" # [type: string, advanced: false, default: "choose"]
-Method: ipm           #HiGHS-specific solver settings # Solver option: "simplex", "choose" or "ipm" # [type: string, advanced: false, default: "choose"]
+TimeLimit: 5.0             # Time limit # [type: double, advanced: false, range: [0, inf], default: inf]
+Pre_Solve: off             # Presolve option: "off", "choose" or "on" # [type: string, advanced: false, default: "choose"]
+Method: choose             #HiGHS-specific solver settings # Solver option: "simplex", "choose" or "ipm" # [type: string, advanced: false, default: "choose"]
 
 #HiGHS-specific solver settings
 

GenX/cases/5_three_zones_w_piecewise_fuel/settings/genx_settings.yml

@@ -8,6 +8,6 @@ StorageLosses: 1 # Energy Share Requirement and CO2 constraints account for ener
 MinCapReq: 1  # Activate minimum technology carveout constraints; 0 = not active; 1 = active
 MaxCapReq: 0  # Activate maximum technology carveout constraints; 0 = not active; 1 = active
 ParameterScale: 1 # Turn on parameter scaling wherein demand, capacity and power variables are defined in GW rather than MW. 0 = not active; 1 = active systemwide
-WriteShadowPrices: 1 # Write shadow prices of LP or relaxed MILP; 0 = not active; 1 = active
-UCommit: 2 # Unit committment of thermal power plants; 0 = not active; 1 = active using integer clestering; 2 = active using linearized clustering
+WriteShadowPrices: 0 # Write shadow prices of LP or relaxed MILP; 0 = not active; 1 = active
+UCommit: 1 # Unit committment of thermal power plants; 0 = not active; 1 = active using integer clestering; 2 = active using linearized clustering
 TimeDomainReduction: 1 # Time domain reduce (i.e. cluster) inputs based on Demand_data.csv, Generators_variability.csv, and Fuels_data.csv; 0 = not active (use input data as provided); 0 = active (cluster input data, or use data that has already been clustered)

GenX/cases/5_three_zones_w_piecewise_fuel/settings/highs_settings.yml

@@ -2,9 +2,9 @@
 # Common solver settings
 Feasib_Tol: 1.0e-05        # Primal feasibility tolerance # [type: double, advanced: false, range: [1e-10, inf], default: 1e-07]
 Optimal_Tol: 1.0e-05       # Dual feasibility tolerance # [type: double, advanced: false, range: [1e-10, inf], default: 1e-07]
-TimeLimit: 1.0e23             # Time limit # [type: double, advanced: false, range: [0, inf], default: inf]
-Pre_Solve: choose          # Presolve option: "off", "choose" or "on" # [type: string, advanced: false, default: "choose"]
-Method: ipm           #HiGHS-specific solver settings # Solver option: "simplex", "choose" or "ipm" # [type: string, advanced: false, default: "choose"]
+TimeLimit: 5.0             # Time limit # [type: double, advanced: false, range: [0, inf], default: inf]
+Pre_Solve: off             # Presolve option: "off", "choose" or "on" # [type: string, advanced: false, default: "choose"]
+Method: choose             #HiGHS-specific solver settings # Solver option: "simplex", "choose" or "ipm" # [type: string, advanced: false, default: "choose"]
 
 # run the crossover routine for ipx
 # [type: string, advanced: "on", range: {"off", "on"}, default: "off"]

GenX/cases/6_three_zones_w_multistage/settings/genx_settings.yml

@@ -7,6 +7,6 @@ StorageLosses: 1 # Energy Share Requirement and CO2 constraints account for ener
 MinCapReq: 0  # Activate minimum technology carveout constraints; 0 = not active; 1 = active
 MaxCapReq: 0  # Activate maximum technology carveout constraints; 0 = not active; 1 = active
 ParameterScale: 1 # Turn on parameter scaling wherein demand, capacity and power variables are defined in GW rather than MW. 0 = not active; 1 = active systemwide
-UCommit: 2 # Unit committment of thermal power plants; 0 = not active; 1 = active using integer clestering; 2 = active using linearized clustering
+UCommit: 1 # Unit committment of thermal power plants; 0 = not active; 1 = active using integer clestering; 2 = active using linearized clustering
 TimeDomainReduction: 1 # Time domain reduce (i.e. cluster) inputs based on Demand_data.csv, Generators_variability.csv, and Fuels_data.csv; 0 = not active (use input data as provided); 0 = active (cluster input data, or use data that has already been clustered)
 MultiStage: 1 # 0 = Single-stage GenX, 1 = Multi-stage GenX

GenX/cases/6_three_zones_w_multistage/settings/highs_settings.yml

@@ -2,9 +2,9 @@
 # Common solver settings
 Feasib_Tol: 1.0e-05        # Primal feasibility tolerance # [type: double, advanced: false, range: [1e-10, inf], default: 1e-07]
 Optimal_Tol: 1.0e-05       # Dual feasibility tolerance # [type: double, advanced: false, range: [1e-10, inf], default: 1e-07]
-TimeLimit: 1.0e23              # Time limit # [type: double, advanced: false, range: [0, inf], default: inf]
-Pre_Solve: choose          # Presolve option: "off", "choose" or "on" # [type: string, advanced: false, default: "choose"]
-Method: ipm            #HiGHS-specific solver settings # Solver option: "simplex", "choose" or "ipm" # [type: string, advanced: false, default: "choose"]
+TimeLimit: 500.0              # Time limit # [type: double, advanced: false, range: [0, inf], default: inf]
+Pre_Solve: off          # Presolve option: "off", "choose" or "on" # [type: string, advanced: false, default: "choose"]
+Method: choose            #HiGHS-specific solver settings # Solver option: "simplex", "choose" or "ipm" # [type: string, advanced: false, default: "choose"]
 
 # run the crossover routine for ipx
 # [type: string, advanced: "on", range: {"off", "on"}, default: "off"]

GenX/cases/7_three_zones_w_colocated_VRE_storage/settings/genx_settings.yml

@@ -1,10 +1,10 @@
 ParameterScale: 1
 NetworkExpansion: 1
 Trans_Loss_Segments: 1
-UCommit: 2
+UCommit: 1
 StorageLosses: 1
 CO2Cap: 1
 MinCapReq: 1
 CapacityReserveMargin: 1
 EnergyShareRequirement: 0
-WriteShadowPrices: 1
+WriteShadowPrices: 0

GenX/cases/7_three_zones_w_colocated_VRE_storage/settings/highs_settings.yml

@@ -2,8 +2,8 @@
 # Common solver settings
 Feasib_Tol: 1.0e-05        # Primal feasibility tolerance # [type: double, advanced: false, range: [1e-10, inf], default: 1e-07]
 Optimal_Tol: 1.0e-05       # Dual feasibility tolerance # [type: double, advanced: false, range: [1e-10, inf], default: 1e-07]
-TimeLimit: 1.0e23             # Time limit # [type: double, advanced: false, range: [0, inf], default: inf]
-Pre_Solve: choose          # Presolve option: "off", "choose" or "on" # [type: string, advanced: false, default: "choose"]
+TimeLimit: 5.0             # Time limit # [type: double, advanced: false, range: [0, inf], default: inf]
+Pre_Solve: off             # Presolve option: "off", "choose" or "on" # [type: string, advanced: false, default: "choose"]
 Method: choose             #HiGHS-specific solver settings # Solver option: "simplex", "choose" or "ipm" # [type: string, advanced: false, default: "choose"]
 
 #highs-specific solver settings

GenX/cases/8_three_zones_w_colocated_VRE_storage_electrolyzers/settings/genx_settings.yml

@@ -1,8 +1,8 @@
 Trans_Loss_Segments: 1 # Number of segments used in piecewise linear approximation of transmission losses; 1 = linear, >2 = piecewise quadratic
-UCommit: 2 # Unit committment of thermal power plants; 0 = not active; 1 = active using integer clestering; 2 = active using linearized clustering
+UCommit: 1 # Unit committment of thermal power plants; 0 = not active; 1 = active using integer clestering; 2 = active using linearized clustering
 StorageLosses: 1 # Energy Share Requirement and CO2 constraints account for energy lost; 0 = not active (DO NOT account for energy lost); 1 = active systemwide (DO account for energy lost)
 HydrogenHourlyMatching: 0 # Hydrogen electrolyzer hourly supply matching required
 ParameterScale: 0 # Turn on parameter scaling wherein demand, capacity and power variables are defined in GW rather than MW. 0 = not active; 1 = active systemwide
 TimeDomainReduction: 0 # Time domain reduce (i.e. cluster) inputs based on Demand_data.csv, Generators_variability.csv, and Fuels_data.csv; 0 = not active (use input data as provided); 0 = active (cluster input data, or use data that has already been clustered)
-WriteShadowPrices: 1 # Write shadow prices of LP or relaxed MILP; 0 = not active; 1 = active
+WriteShadowPrices: 0 # Write shadow prices of LP or relaxed MILP; 0 = not active; 1 = active
 HydrogenMinimumProduction: 1  # Hydrogen production requirement; 0 = not active; 1 = active, meet regional level H2 production requirements