Hidden Parameters for PLEXOS 9.0
For setup and usage information, please refer to the Hidden Parameters technical reference.
| Class | ParameterName | Type | Default | Validation | Multi-band | Description |
|---|---|---|---|---|---|---|
| Report | CompiledConstraints | Boolean | false | false | Enable a detailed report of compiled constraints. Normally, activity violation properties for a constraint are only reported for user defined constraints. | |
| Model | EncryptData | Boolean | false |
|
false | Setting to enable data obfuscation (encryption). This will convert all object names into an encrypted form, using a random seed (i.e. cannot be decrypted). This is useful for securing sensitive information. All references to these objects are also updated in the csv data file themselves. |
| Model | FlatFileRoundingDP | Integer | 8 | > 0 | false | Rounding precision in flat file writing. |
| Model | IncludeInputData | Boolean | false |
|
false | If the input dataset should be included in the solution file, which is used with the CIM exporter functionality. |
| Model | IncludeMaintenanceInReliabilityIndices | Boolean | true |
|
false | Include the distributed maintenance in reliability indices calculation. Discrete maintenance is always included. |
| Model | IncludeModelNameInFilenames | Boolean | true |
|
false | If the Model name should be included in the filenames such as LP and other diagnostic files. |
| Model | MaxConditionConvergenceIterations | Integer | 4 | > 0 | false | Used to define the maximum number of iterations in the condition convergence algorithm. |
| Model | RunMode_PASA | Integer | 0 | In (0,1) | false | Value = 0 ("Normal"), Value = 1 ("Dry") for the PASA phase only. (See above for more details about the "dry run" mode) |
| Model | RunMode_LTPlan | Integer | 0 | In (0,1) | false | Value = 0 ("Normal"), Value = 1 ("Dry") for the LT Plan phase only. (See above for more details about the "dry run" mode) |
| Model | RunMode_MTSchedule | Integer | 0 | In (0,1) | false | Value = 0 ("Normal"), Value = 1 ("Dry") for the MT Schedule phase only. (See above for more details about the "dry run" mode) |
| Model | RunMode_STSchedule | Integer | 0 | In (0,1) | false | Value = 0 ("Normal"), Value = 1 ("Dry") for the ST Schedule phase only. (See above for more details about the "dry run" mode) |
| Model | SuppressInterleaveOutages | Boolean | false |
|
false | Setting to true will suppress commencing forced outages in the "day-ahead" model of an interleaved execution. |
| Model | SuppressRescalingSampledData | Boolean | false |
|
false | Setting to true will suppress rescaling the sampled data (eg. load, wind, solar) in sampled chronology. |
| Model | UseDatafileObjectLookup | String() | null |
|
false | Used to define variable's which will have their name mapped to objects names for data file values look up. If a variable is defined to use DatafileObjectLookup, then in the data file reading process, PLEXOS will find the objects' name instead of variable's name (the objects tagged to current variable), when reading object names from columns. Users can use one such variable for multiple objects instead of creating one variable for each object. Note, maximum only one such variable can be set per object.. |
| Model | UseQuadraticRescaleProfile | String() | true |
|
false | Option to use Quadratic growth method in rescaling the sampled data if the fitting using Linear method is not ideal, setting to false will revert to the original Linear method. |
| Model | WriteInputGenericObjects | Boolean | false |
|
false | In the case of 'Write Input' is checked, if ' WriteInputGenericObjects' is true, then keep generated objects and remove original objects in the new generated input .xml file and vice versa. |
| LTPlan | AverageSamples | Boolean | false |
|
false | Controls averaging of loads when LT Plan Chronology = "Sampled". |
| LTPlan | BertrandEnabled | Boolean | true |
|
false | Flag if Bertrand competition is enabled in LT Plan when it is also enabled in the Competition settings. |
| LTPlan | CournotEnabled | Boolean | true |
|
false | Flag if Cournot competition is enabled in LT Plan when it is also enabled in the Competition settings. |
| LTPlan | IncludeMarketInRegionCapacity | Boolean | true |
|
false | Include Markets in region reserve capacity calculation. |
| LTPlan | ResolutionBlockCount | Integer() | >=1 | none | true | Number of blocks fitted to each [Resolution Type] period. |
| LTPlan | ResolutionIntervalCount | Integer() | >=1 | none | true | Number of intervals in the Horizon that this band of resolution applies to. |
| LTPlan | ResolutionType | Integer() | In (1,2,3,4,7) | none | true | [Resolution Block Count] number of periods will be fitted to each of these period types in the Horizon. 1=day, 2=week, 3=month, 4=year, 7=quarter. |
| LTPlan | RunUpDownEnabled | Boolean | true |
|
false | Flag if run up/down or start/shutdown profile is allowed in LT Plan. |
| LTPlan | StartStopEnabled | Boolean | true |
|
false | Flag if run start/shutdown decisions are modelled in LT Plan. |
| LTPlan | Transmission_DetectNonphysicalLosses | Boolean | false |
|
false | Detect and correct non-physical losses (0=Never,1=Auto,2=Always). |
| LTPlan | UnitCommitmentOptimality | Integer | -1 | In (-1,0,1,2) | false | Overrides Production Unit Commitment Optimality . |
| LTPlan | DisableChronoConstraintsFitted | Boolean | false | false | Flag to disable the chronology constraints for Fitted in LT Plan. | |
| MTSchedule | AverageSamples | Boolean | false |
|
false | Controls averaging of loads when MT Schedule Chronology = "Sampled". |
| MTSchedule | BertrandEnabled | Boolean | true |
|
false | Flag if Bertrand competition is enabled in MT Schedule when it is also enabled in the Competition settings. |
| MTSchedule | CournotEnabled | Boolean | true |
|
false | Flag if Cournot competition is enabled in MT Schedule when it is also enabled in the Competition settings. |
| MTSchedule | IsGeneratorTransitionEnabled | Boolean | true |
|
false | Flag if the generation transmission feature is enabled in MT Schedule. |
| MTSchedule | NonPriceSettingEnabled | Boolean | true |
|
false | Flag if the simulation should fix the output of non-price setting plant after the transmission solution has converged. |
| MTSchedule | ResolutionBlockCount | Integer() | >=1 | none | true | Number of blocks fitted to each [Resolution Type] period. |
| MTSchedule | ResolutionIntervalCount | Integer() | >=1 | none | true | Number of intervals in the Horizon that this band of resolution applies to. |
| MTSchedule | ResolutionType | Integer() | In (1,2,3,4,7) | none | true | [Resolution Block Count] number of periods will be fitted to each of these period types in the Horizon. 1=day, 2=week, 3=month, 4=year, 7=quarter. |
| MTSchedule | RunSDDPafterRollingHorizon | Boolean | true |
|
false | Flag if manually switch off running SDDP after Rolling Horizon. |
| MTSchedule | RunUpDownEnabled | Boolean | true |
|
false | Flag if run up/down or start/shutdown profile is allowed in MT Schedule. |
| MTSchedule | SampledYearCount | Integer | 0 | > 0 | false | This is the other option to invoke year sampling in MT Schedule, i.e. automatically select "N" years out of total horizon years. N = 0 means no year sampling. |
| MTSchedule | SampledYearList | Integer[] | null |
|
false | A list of sample years manually selected for MT Schedule in Sampled chronology, years not contained in the list will be skipped. |
| MTSchedule | StartStopEnabled | Boolean | true |
|
false | Flag if run start/shutdown decisions are modelled in MT Schedule. |
| MTSchedule | Transmission_DetectNonphysicalLosses | Boolean | false |
|
false | Detect and correct non-physical transmission losses (0=Never,1=Auto,2=Always) |
| MTSchedule | UnitCommitmentOptimality | Integer | -1 | In (-1,0,1,2) | false | Overrides Production Unit Commitment Optimality |
| MTSchedule | DisableChronoConstraintsFitted | Boolean | false | false | Flag to disable the chronology constraints for Fitted in MT Schedule. | |
| MTSchedule | SecondGasStorageTargetPass | Boolean | false | false | Flag to enable a second pricing pass in the MT when using Gas Storage objects. The second pass will fix the lower bound of the gas storage contents to be the solution values from the first pass. It is generally meant to be used in conjunction with a value less than 100 for the GasFieldMinPercentSecondPass parameter. | |
| MTSchedule | GasFieldMinPercentSecondPass | Double | 100 | false | A value lower than 100 will trigger a second pass in the MT and adjust the RHS of any min production day constraints on all Gas Fields by this percentage value. It is generally meant to be used in conjunction with a value of True for the SecondGasStorageTargetPass parameter. | |
| STSchedule | BertrandEnabled | Boolean | true |
|
false | Flag if Bertrand competition is enabled in ST Schedule when it is also enabled in the Competition settings. |
| STSchedule | BreakStepLinks | Boolean | false |
|
false | Allows links such as unit commitment that are passed between ST Schedule steps to be broken, making each step independent. |
| STSchedule | CournotEnabled | Boolean | true |
|
false | Flag if Cournot competition is enabled in ST Schedule when it is also enabled in the Competition settings. |
| STSchedule | RunUpDownEnabled | Boolean | true |
|
false | Flag if run up/down or start/shutdown profile is allowed in ST Schedule. |
| STSchedule | StartStopEnabled | Boolean | true |
|
false | Flag if run start/shutdown decisions are modelled in ST Schedule. |
| STSchedule | Transmission_DetectNonphysicalLosses | Boolean | false |
|
false | Detect and correct non-physical transmission losses (0=Never,1=Auto,2=Always) |
| STSchedule | UnitCommitmentOptimality | Integer | -1 | In (-1,0,1,2) | false | Overrides Production Unit Commitment Optimality |
| Production | AccountForHeadPotenialEnergy | Boolean | false |
|
false | Accounts for the potential energy of a head storage with regards to Reserve provision, i.e. reserve is limited to the remaining potential energy in the storage. |
| Production | EmissionsFormulateUpfront | Boolean | false |
|
false | Flag if emissions are modelled as decision variables in the simulation rather than having their costs pre-computed and passed through to generation costs. |
| Production | EnforceLinearUpDownConstraints | Boolean | false |
|
false | This indicates whether min up time, min down time, max up time, and max down time are honored when running with linear commitment. |
| Production | FreezeTolerance | Double | -1.0 |
|
false | The tolerance used when freezing the production of generators, batteries, and other facilities in the Uniform Pricing and other algorithms that require fixing the production at a solved value. |
| Production | EqualizeGasContractTakeOverIntervals | Boolean | false |
|
false | Forces equal Gas Contract Take Quantity for each interval. |
| Production | FillMissingOfferPrices | Boolean | false |
|
false | Flag if missing Generator Offer Price bands are filled with SRMC values or left to default. |
| Production | FixedLoadAllUnits | Boolean | true |
|
false | Flag if Generator Fixed Load is to be applied across all units, or per unit. |
| Production | ForcedOutageRelaxesMinDownTime | Boolean | false |
|
false | Flag if Generator Min Down Time is relaxed when a unit experiences a forced outage. |
| Production | FormulateAllGeneratorRamp | Boolean | false |
|
false | Flag if Generator ramp constraints should be included in the formulation even if the ramp rate is large enough that it would normally never bind. |
| Production | HeadEffectsOptimality | Integer | 2 | In(1,2) | false | Optimality setting for hydro head effects (1=Integer Optimal, 2=Rounded Relaxation). |
| Production | HeadEffectsOptimalityRollingWindow | Integer | -1 |
|
false | Size of the window over which to roll integer-fixing algorithm for head effects. |
| Production | OffersIncludeEmissions | Boolean | false |
|
false | Flag if Generator [Offer Price] is assumed to include the shadow price of emissions. |
| Production | RequireOptimalHeatSplit | Boolean | true |
|
false | Flag if the heat output of a generator/heat plant/heat export node is optimally split among its heat output nodes. |
| Production | SteamByPassControlMode | String | Outage | In(Free,Outage,Commitment) | false | The behaviour of the steam by-pass in the heat model. Free: by-pass is always open. Outage: by-pass is open only when the ST generator is out-of-service. Commitment: by-pass is open when ST generator is not committed. |
| Production | STGeneratorsWithoutCondenser | String |
|
|
false | Specify a list of steam turbine (ST) generator names that do not have a condenser. Names must be the same as in the model and are separated by a comma. |
| Production | Tiebreaking | Boolean | true |
|
false | Flag if tied Generator offers should be resolved. |
| Production | TiebreakingPenalty | Double | 0.000001 |
|
false | Penalty applied to tie-break constraints. |
| Production | Smooth Ramping | Boolean | false |
|
false | Flag if Generator dispatch should be 'smoothed' (ramping minimized subject to total system cost being first minimized). This is solved using multi-objective optimization with ramping charges read from inputs Generator Ramp Down Charge / Ramp Up Charge or VO&M Charge or 1c if none are defined. This feature is only available on solvers that support multi-objective optimization. |
| Production | ForceRunUpStopAtMinStableLevel | Boolean | false |
|
false | Flag to check if we are forcing the run up phase to terminate at the min stable level. When this parameter is set to true, last interval in the startup profile for a generator is the earliest interval at which we cross the min stable level. |
| Transmission | DisableNodesAtNeworkEnd | Boolean | True |
|
false | Skip formulation of nodes that are inactive and located at the network end. |
| Transmission | DisableNPFCorrection | Boolean | False |
|
false | Disable the non-physical flow correction process. This process is important when running in regional or zonal transmission detail but might result in longer running time. |
| Transmission | NPLRelativeTolerance | Double | 0.0001 |
|
false | Threshold for detecting non-physical losses. Relative size of error. |
| Transmission | NPLTolerance | Double | 0.0001 |
|
false | Tolerance for detecting non-physical losses. |
| Transmission | PumpBehaviourInUniformPricing | Integer | 0 | In(0,1) | false | Pumped storage behaviour in uniform pricing process. 0 (default): disable pumping and free storage bounds. 1: Freeze pumping at current solution and keep the storage bounds. |
| Transmission | USETolerance | Double | 0.0001 |
|
false | Minimum Region Unserved Energy before the interruption sharing algorithm is invoked. |
| Capacity | RegionAssistingPriorities | Integer | 0 | ≥0 | false | The region assisting priority for calculating multi-area reliability indices. See Region Assisting Priority |
| Capacity | ZoneAssistingPriorities | Integer | 0 | ≥0 | false | The zone assisting priority for calculating multi-area reliability indices. See Zone Assisting Priority |
| Capacity | LineFullOutage | Boolean | false |
|
false | When a line is out within a block, the users want to leave the line completely out (capacity = 0) |
| Capacity | SpinningReserve_LTPlan | Boolean | false |
|
false | Flag if derating the capacity of generators which have a min spinning provision in reliability calculations in LT Plan. |
| Capacity | SpinningReserve_PASA | Boolean | false |
|
false | Flag if derating the capacity of generators which have a min spinning provision in reliability calculations in PASA. |
| Stochastic | CumulativeProbability | Boolean | false |
|
false | Flag if the input Variable [Probability] is defined as Cumulative Probability in the range of (0, 100] |
| Stochastic | FutureCostFunction | Boolean | true |
|
false | Toggles on/off use of future cost function for case of Storage Decomposition Method = "Water Values" |
| Stochastic | GlobalDeterministicStage | Integer | 0 |
|
false | Number of stages from root node where decision are taken before revealing uncertainty. |
| Stochastic | GlobalFCFName | String | "FCF" |
|
true | Name of the FCF object when writing the FCF diagnostic file |
| Stochastic | GlobalFCFObj | Double() | Nothing |
|
true | Array containing the FCF objective values |
| Stochastic | LeavesExpFactor | Double | 1.0 | Between 0.0 And 1.0 | false | Overrides Global Tree Leaves Exp Factor |
| Stochastic | NonAnticipativitySense | Integer | 0 | In (-1,0,1) | false | Value = -1 ("less-than or equal-to"), Value = 0 ("equal to"), Value = 1 ("greater-than or equal-to") |
| Stochastic | PositionExpFactor | Double | 1.0 | Between 0.0 And 1.0 | false | Overrides Global Tree Position Exp Factor |
| Stochastic | Risk Level | Double | 0.1 | Between 0 And 1 | false | Risk level for risk-constrained optimization where 0.1 means above 90% |
| Stochastic | RollingStageIncrement | Integer | -1 |
|
false | Number of stages considered in each rolling horizon step. |
| Stochastic | SampleStageCount | Integer | 1 | ≥1 | false | Overrides Global Tree Stage Count |
| Stochastic | SampleWeight | Double[] | null |
|
true | Overrides Global Sample Weight |
| Stochastic | SampleWeightingMethod | Integer | 0 |
|
false | Value = 0 ("Uniform"), Value = 1 ("Custom"). Custom uses sample weights defined by theSampleWeight argument. |
| Stochastic | SDDPDisableMainBranch | Boolean | true |
|
false | Flag if main (full) branch formulation should be disabled in the backward pass in SDDP Algorithm. |
| Stochastic | StagesHangingBranches | Integer[] | null |
|
true | Overrides Global Tree Stages Hanging Branches |
| Stochastic | StagesLeaves | Integer[] | null |
|
true | Overrides Global Tree Stages Leaves |
| Stochastic | StagesPeriodType | Integer | 0 | In (0,1,2,3,4,5,6) | false | Overrides Global Tree Period Type |
| Stochastic | StagesPosition | Integer[] | null |
|
true | Overrides Global Tree Stages Position |
| Stochastic | StepList | Integer[] | null |
|
false | In Guided Monte Carlo, this is the list of ST Schedule steps for which Monte Carlo simulation is performed. Steps not listed run only the first sample. |
| Stochastic | TreeInfoInputFile | String | null |
|
false | The scenario tree will be constructed based on the tree information in the input file. See Global Tree Info Input File |
| Stochastic | WriteHistoricalSamples | Boolean | false |
|
false | Write hanging and full branches in a csv file for debugging purposes. |
| Stochastic | WritePARMAParameters | Boolean | false |
|
false | Write fitted PARMA parameters in a csv file for debugging purposes |
| Storage | HeadEffectsIn_LTPlan | Boolean | false |
|
false | Flag if formulate head effect in LT plan |
| Storage | HeadEffectsIn_PASA | Boolean | false |
|
false | Flag if formulate head effect in PASA phase |
| Storage | HeadEffectsIn_MTSchedule | Boolean | false |
|
false | Flag if formulate head effect in MT Schedule |
| Storage | HeadEffectsIn_STSchedule | Boolean | false |
|
false | Flag if formulate head effect in ST Schedule |
| Storage | StorageRecycleIgnoreLookAhead | Boolean | false |
|
false | Flag if Recycle period should not include look ahead periods |
| Storage | StorageTargetIgnoreLookAhead | Boolean | false |
|
false | Flag if Target period should not include look ahead periods |
| Storage | PenalizeOverTarget | Boolean | false |
|
false | Flag if penalize over-reaching of the target in setting Decomposition Method = "Targets". It applies to all storage types. |
| Storage | DetectChangeInInitialVolume | Boolean | true |
|
false | Flag if the change in Initial Volume is treated as an inflow |
| Storage | HeadStoragePerturbation | Boolean | false |
|
false | Add small natural inflow in the first period to slightly perturb the problem. When multiple alternate solutions exist in a problem with tightly coupled balance constraints, adding small natural inflow in the balance equation minimizes shadow prices. |
| SyntheticSeries | Variable | String | null |
|
false | Name of the Variable object for which transformation is applied |
| SyntheticSeries | TransformName | String | null |
|
false | Type of transformation applied |
| SyntheticSeries | ParameterName | String | null |
|
false | Name of transformation's parameter |
| SyntheticSeries | Band | Integer | 1 |
|
false | Band of transformation's parameter |
| SyntheticSeries | Value | Double | 0.0 |
|
false | Value of transformation's parameter |
| SyntheticSeries | Scenario | String | null |
|
false | Scenario for which transformation is used |
| Competition | ApplyStrategicAfterPricingStrategy | Boolean | false |
|
false | Controls if Company Strategic constraints are applied before or after Competition Pricing Strategy |
| Competition | NewBranchAndBoundMethod | Boolean | true |
|
false | Flag if New branch and bound method (Short path problem formulation) is applied, otherwise use original branch and bound method |
| Competition | MaxBranchAndBoundDepth | Integer | Infinity | >0 | false | Provide the maximum iterations for the marginal loss calculation in the Bertrand process. A high value will has higher accuracy but possibly longer running time. It should be set for the original branch and bound method only, used together with "NewBranchAndBoundMethod= false" |
| Diagnostic | StorageDecomposition | Boolean | false |
|
false | Writes a CSV file containing the storage decomposition targets and shadow prices passed between simulation phases |
| Diagnostic | FlowImpact | Boolean | false |
|
false | Write diagnostics for flow impact. The associated Flow Impact GUI component is only available in PLEXOS 7.1 version. |
| Diagnostic | FormulationList | Boolean | false |
|
false | Write diagnostics for formulated dynamic constraints. |
| Diagnostic | COPTStepFrom | Integer | 0 | ≥0 | false | write out the Capacity Outage Probability Table from this step (included). |
| Diagnostic | COPTStepTo | Integer | 0 | ≥0 | false | write out the Capacity Outage Probability Table to this step (included). |
| Diagnostic | COPTPeriodFrom | Integer | 0 | ≥0 | false | write out the Capacity Outage Probability Table from this period (included). |
| Diagnostic | COPTPeriodTo | Integer | 0 | ≥0 | false | write out the Capacity Outage Probability Table to this period (included). |
| Diagnostic | COPTProbTolerance | Double | 0.000001 | ≥0 | false | probability tolerance for Capacity Outage Possibility Table. Note: The Compute Reliability Indices must be enabled in the phase to output this diagnostic. |
| Diagnostic | ParallelProcessPrintInBlock | Boolean | false |
|
false | This parameter relates to stochastic parallel process (Monte Carlo simulation). When enabled and in parallel mode, output logs will be grouped together to their respective indexed samples. Note: Enabling this feature does affect the performances of the optimization process. |
| Diagnostic | SaveSolutionAsBlock | Boolean | false |
|
false | save solutions as blocks in flat file format or to print csv's solution in blocks. |
| Performance | CacheTextDatainMemory | Boolean | true |
|
false | If external text data are cached to memory (faster). |
| Performance | UseInterrupt | Boolean | false |
|
false | If the solver enables the MIP Callback feature, i.e. the MIP solve can be interrupted when integer solutions are available. Please note that this feature can impact performance, for example CPLEX always disables dual and nonlinear reductions in presolve with this option enabled. |
| Performance | CheckDegenerateBasis | Boolean | false |
|
false | When this parameter is set to true, PLEXOS performs an additional check at the end of each LP solve to see if certain relaxation variables have a solution of 0 but are affecting prices. This can happen when the basis is degenerate. For example, if the available generating capacity is exactly equal to the load, the unserved energy variable might still be in the basis and set the region price even when there is no unserved energy used. With this option turned on, PLEXOS will detect this situation and solve again to remove the effect of the unused relaxation variable on the prices. The check is currently done for unserved energy, dump, reserve shortage, gas shortage, and water shortage variables. It is implemented for Gurobi, CPLEX, and MOSEK. |
| GasField | IncrementalInput | Boolean | false |
|
false | If Gas Field Production Volume is defined in an incremental format. |
| Region | ExcludeProfitFromAmortizedCost | Boolean | false |
|
false | If the Amortized cost should subtract the block profit. |
| Region | SingleRegionLDC | String | Nothing |
|
false | The name of a specific region who's load data will be used when creating the partial chronology, rather than the total system load. |
| Reserve | SetProvisionPrice | Boolean | false |
|
false | If the objective function should include a small penalty on Reserve Provision to avoid over-providing the service. |
| Reserve | Energyusageforreplacement | Boolean | false |
|
false | If the energy usage is applied for replacement reserve. |
| Reserve | Reportstartcostforenergyusage | Boolean | false |
|
false | If the start cost is reported when the generator is called online to provide energy usage from replacement reserve. |
| Reserve | Implementcascadingreserve | Boolean | false |
|
false | If the cascading reserve scheme is model using the nested reserve |
| RSI | SummerStartMonth | Integer | 5 | In (1,...,12) | false | Start month for RSI Summer Period. |
| RSI | SummerEndMonth | Integer | 10 | In (1,...,12) | false | End month for RSI Summer Period. |
| RSI | PeakStartHour | Integer | 7 | In (1,...,24) | false | Start hour for RSI Peak Period. |
| RSI | PeakEndHour | Integer | 22 | In (1,...,24) | false | Start hour for RSI Peak Period. |
| Constraint | ConditionMethod | Integer | 1 | In (0,1,2) | false | Method used to formulate/solve Constraints with Conditions (0=Ignore, 1=Iterate, 2=Optimize). |
| Constraint | SupportDecisionVariableInPASA | Boolean | false |
|
false | Flag if Support Decision Variable In PASA |