Storage Index

Storage Attributes

NameUnitsDefault ValueValidation RuleDescription
Latitude°0Latitude
Longitude°0Longitude

Storage Input Properties

NameUnitsMulti-bandDefault ValueValidation RuleKey PropertyDescription
Balance Period-False0In (0,1,2,3,4,5,6)FalseFrequency of storage balance
Decomposition Bound Penalty$/GWhFalse1000000≥0FalsePenalty applied to violation of storage bounds when the decomposition implies possible violations.
Decomposition Method-False1In (0,1,2)FalseMethod used to pass the optimal storage trajectory from one simulation phase to the next.
Decomposition Penalty a-False0.0489FalseDecomposition storage target penalty function 'a' term.
Decomposition Penalty b-False0.6931FalseDecomposition storage target penalty function 'b' term.
Decomposition Penalty c-False0FalseDecomposition storage target penalty function 'c' term.
Decomposition Penalty x-False1.1FalseDecomposition storage target penalty function 'x' term.
Downstream EfficiencyMW/MWFalse1≥0FalseAggregate efficiency of generation down the river chain
End Effects Method-False0In (0,1,2)FalseMethod used to handle end-of-period storage.
Energy Value$/MWhTrue10000FalseIncremental price of energy generated from storage
Energy Value PointGWhTrue1E+30≥0FalseEnergy associated with [Energy Value] in multiple bands
Enforce BoundsYes/NoFalse-1In (0,-1)FalseIf the storage bounds are enforced.
High Ref Aream² (Metric), ft² (U.S. Imperial)True0≥0FalseArea of surface at high reference level
High Ref Levelm (Metric), ft (U.S. Imperial)True0≥0FalseHigh reference level for volume calculation
Initial Levelm (Metric), ft (U.S. Imperial)False0≥0FalseInitial level
Initial VolumeGWhFalse0≥0FalseStorage volume at the start of the period
Internal Volume Scalar-False1000>0FalseStorage volume scaling factor used internal to the mathematical program.
Loss Rate%False0FalseRate of loss due to evaporation, leakage, etc
Low Ref Aream² (Metric), ft² (U.S. Imperial)False0≥0FalseArea of surface at low reference level
Low Ref Levelm (Metric), ft (U.S. Imperial)False0≥0FalseLow reference level for volume calculation
Max Generator ReleaseMWFalse1E+30≥0FalseMaximum rate of release for generation from the storage
Max Levelm (Metric), ft (U.S. Imperial)False1E+30≥0FalseMaximum level
Max RampGWhFalse1E+30≥0FalseMaximum rate of change in storage
Max Ramp DayGWhFalse1E+30≥0FalseMaximum of change in storage across each day.
Max Ramp HourMWFalse1E+30≥0FalseMaximum change in storage across each hour.
Max Ramp MonthGWhFalse1E+30≥0FalseMaximum of change in storage across each month.
Max Ramp Penalty$/MWFalse-1FalsePenalty for violating the [Max Ramp Day/Week/Month/Year] constraint.
Max Ramp WeekGWhFalse1E+30≥0FalseMaximum of change in storage across each week.
Max Ramp YearGWhFalse1E+30≥0FalseMaximum of change in storage across each year.
Max ReleaseMWFalse1E+30≥0FalseMaximum rate of release from the storage
Max Release Penalty$/MWFalse-1FalsePenalty for violation of maximum rate of release constraints
Max SpillMWFalse1E+30≥0FalseMaximum allowable spill from the storage to "the sea"
Max VolumeGWhFalse1E+30≥0FalseMaximum volume
Max Volume Penalty$/MWhFalse-1FalsePenalty for violatiog the Max Volume constraint
Min Levelm (Metric), ft (U.S. Imperial)False0≥0FalseMinimum level
Min ReleaseMWFalse0FalseMinimum rate of release from the storage
Min Release Penalty$/MWFalse-1FalsePenalty for violation of minimum rate of release constraints
Min VolumeGWhFalse0≥0FalseMinimum volume
Min Volume Penalty$/MWhFalse-1FalsePenalty for violatiog the Min Volume constraint
Model-False0In (0,1,2,3)FalseModel used to define and model storage volumes (used to override the file-level Hydro Model setting).
Natural InflowMWFalse0FalseRate of natural inflow
Natural Inflow IncrMWFalse0FalseIncrement to [Natural Inflow]
Natural Inflow Scalar-False1FalseMultiplier on [Natural Inflow]
Non-physical Inflow Penalty$/MWFalse-1FalsePenalty applied to non-physical inflow to the storage. A value of -1 means none are allowed.
Non-physical Spill Penalty$/MWFalse-1FalsePenalty applied to non-physical spill from the storage. A value of -1 means none are allowed.
Recycle Penalty$/GWhFalse-1FalsePenalty for violating the recycling constraint.
Rolling Planning Bonus$/GWhFalse0FalseBonus for storage contents at the end of the look-ahead
Spill Penalty$/GWhFalse0.0001≥0FalsePenalty applied to spill from the storage to "the sea" in the last period of each simulation step.
TargetGWhFalse0≥0Falsestorage target
Target CustomGWhFalse0≥0Falseend of horizon storage target
Target DayGWhFalse0≥0Falseend of day storage target
Target HourGWhFalse0≥0Falseend of hour storage target
Target Levelm (Metric), ft (U.S. Imperial)False0≥0Falsestorage target
Target Level Daym (Metric), ft (U.S. Imperial)False0≥0Falseend of day storage target
Target Level Hourm (Metric), ft (U.S. Imperial)False0≥0Falseend of hour storage target
Target Level Monthm (Metric), ft (U.S. Imperial)False0≥0Falseend of month storage target
Target Level Weekm (Metric), ft (U.S. Imperial)False0≥0Falseend of week storage target
Target Level Yearm (Metric), ft (U.S. Imperial)False0≥0Falseend of year storage target
Target MonthGWhFalse0≥0Falseend of month storage target
Target Penalty$/GWhFalse-1FalsePenalty for violating the target.
Target WeekGWhFalse0≥0Falseend of weekly storage target
Target YearGWhFalse0≥0Falseend of year storage target
Trajectory Lower Bound Penalty$/MWhFalse-1FalsePrice for running the storage below the stochastic optimal storage trajectory
Trajectory Non-anticipativity$/MWhTrue-1FalsePrice for violating non-anticipativity constraints in scenario-wise decomposition mode
Trajectory Non-anticipativity TimehFalse0≥0FalseWindow of time over which to enforce non-anticipativity constraints in scenario-wise decomposition
Trajectory Non-anticipativity VolumeGWhTrue1E+30≥0FalseVolume of violation of non-anticipativity constraints in band
Trajectory Upper Bound Penalty$/MWhFalse-1FalsePrice for running the storage above the stochastic optimal storage trajectory
Units-False1≥0TrueNumber of units of the storage
Water Value$/GWhTrue10000FalseIncremental price of water released from storage
Water Value PointGWhTrue1E+30≥0FalseVolume associated with [Water Value] in multiple bands
x-True0FalseValue to pass-through to solution
y-True0FalseValue to pass-through to solution
z-True0FalseValue to pass-through to solution

Storage Constraints Input Properties

NameUnitsMulti-bandDefault ValueValidation RuleKey PropertyDescription
End Level Coefficientm (Metric), ft (U.S. Imperial)False0FalseCoefficient of storage end level.
End Volume CoefficientGWhFalse0FalseCoefficient of storage end volume.
Generator Release CoefficientMWFalse0FalseCoefficient of generator release.
Hours Full CoefficienthFalse0FalseCoefficient of the number of hours the storage is full.
Inflow CoefficientMWFalse0FalseCoefficient of inflow.
Initial Volume CoefficientGWhFalse0FalseCoefficient of storage initial volume.
Loss CoefficientMWFalse0FalseCoefficient of the loss from the storage.
Natural Inflow CoefficientMWFalse0FalseCoefficient of natural inflow
Ramp CoefficientGWhFalse0FalseCoefficient of change in storage end volume.
Release CoefficientMWFalse0FalseCoefficient of release.
Spill CoefficientMWFalse0FalseCoefficient of spill.

Storage Objectives Input Properties

NameUnitsMulti-bandDefault ValueValidation RuleKey PropertyDescription
End Level Coefficientm (Metric), ft (U.S. Imperial)False0FalseCoefficient of storage end level
End Volume CoefficientGWhFalse0FalseCoefficient of storage end volume
Generator Release CoefficientMWFalse0FalseCoefficient of generator release
Hours Full CoefficienthFalse0FalseCoefficient of the number of hours the storage is full
Inflow CoefficientMWFalse0FalseCoefficient of inflow
Loss CoefficientMWFalse0FalseCoefficient of the loss from the storage
Natural Inflow CoefficientMWFalse0FalseCoefficient of natural inflow
Ramp CoefficientGWhFalse0FalseCoefficient of change in storage end volume
Release CoefficientMWFalse0FalseCoefficient of release
Spill CoefficientMWFalse0FalseCoefficient of spill

Storage Conditions Input Properties

NameUnitsMulti-bandDefault ValueValidation RuleKey PropertyDescription
End Potential Energy CoefficientGWhFalse0FalseCoefficient of the end potential energy in storage in the condition equation
End Volume CoefficientGWhFalse0FalseCoefficient of the end volume in storage in the condition equation
Inflow CoefficientMWFalse0FalseCoefficient of inflow in the condition equation
Initial Potential Energy CoefficientGWhFalse0FalseCoefficient of the initial potential energy in storage in the condition equation
Initial Volume CoefficientGWhFalse0FalseCoefficient of the initial volume in storage in the condition equation
Release CoefficientMWFalse0FalseCoefficient of release in the condition equation
Spill CoefficientMWFalse0FalseCoefficient of spill in the condition equation

Storage Globals Input Properties

NameUnitsMulti-bandDefault ValueValidation RuleKey PropertyDescription
FCF Shadow Price-True0FalseShadow price of water in storage in Future Cost Function

Storage Output Properties

NameSummary NameProperty GroupPhasesMulti-bandDescription
Average Utilization - %Average Utilization - %ProductionLT Plan, MT Schedule, ST ScheduleFalseAverage storage utilization based on end volume
Average Working Utilization - %Average Working Utilization - %ProductionLT Plan, MT Schedule, ST ScheduleFalseAverage storage utilization based on working volume
Downstream Efficiency - MW/MWDownstream Efficiency - MW/MWProductionLT Plan, MT Schedule, ST ScheduleFalseAggregate efficiency of generation down the river chain
Downstream Release - MWDownstream Release - GWhProductionLT Plan, MT Schedule, ST ScheduleFalseRelease downstream via waterways
Downstream Release Energy - MWhDownstream Release Energy - GWhProductionLT Plan, MT Schedule, ST ScheduleFalsePotential energy of downstream releases
Downstream Release Rate - MWDownstream Release Rate - MWProductionLT Plan, MT Schedule, ST ScheduleFalseRelease downstream via waterways
Efficiency - MW/MWEfficiency - MW/MWProductionLT Plan, MT Schedule, ST ScheduleFalseEfficiency of generation
End Level - m (Metric), ft (U.S. Imperial)End Level - m (Metric), ft (U.S. Imperial)ProductionLT Plan, MT Schedule, ST ScheduleFalseStorage level at the end of the period
End Potential Energy - GWhEnd Potential Energy - GWhProductionLT Plan, MT Schedule, ST ScheduleFalsePotential energy of end volume
End Volume - GWhEnd Volume - GWhProductionLT Plan, MT Schedule, ST ScheduleFalseStorage volume at the end of the period
Generation - MWGeneration - GWhProductionLT Plan, MT Schedule, ST ScheduleFalseGeneration from exporting generators
Generator Release - MWGenerator Release - GWhProductionLT Plan, MT Schedule, ST ScheduleFalseRelease for generation
Generator Release Energy - MWhGenerator Release Energy - GWhProductionLT Plan, MT Schedule, ST ScheduleFalsePotential energy of generator releases
Generator Release Rate - MWGenerator Release Rate - MWProductionLT Plan, MT Schedule, ST ScheduleFalseRelease for generation
Hours Full - hHours Full - hProductionLT Plan, MT Schedule, ST ScheduleFalseNumber of hours the storage is full
Inflow - MWInflow - GWhProductionLT Plan, MT Schedule, ST ScheduleFalseInflow
Inflow Energy - MWhInflow Energy - GWhProductionLT Plan, MT Schedule, ST ScheduleFalsePotential energy of inflows
Inflow Rate - MWInflow Rate - MWProductionLT Plan, MT Schedule, ST ScheduleFalseInflow
Initial Level - m (Metric), ft (U.S. Imperial)Initial Level - m (Metric), ft (U.S. Imperial)ProductionLT Plan, MT Schedule, ST ScheduleFalseInitial level
Initial Potential Energy - GWhInitial Potential Energy - GWhProductionLT Plan, MT Schedule, ST ScheduleFalsePotential energy of initial volume
Initial Volume - GWhInitial Volume - GWhProductionLT Plan, MT Schedule, ST ScheduleFalseStorage volume at the start of the period
Loss - MWLoss - GWhProductionLT Plan, MT Schedule, ST ScheduleFalseLoss due to evaporation, leakage, etc
Marginal Cost - $/MWhMarginal Cost - $/MWhProductionLT Plan, MT Schedule, ST ScheduleFalseMarginal energy cost of water released from the storage
Marginal Value - $/MWhMarginal Value - $/MWhProductionLT Plan, MT Schedule, ST ScheduleFalseMarginal energy value of water held in storage
Max Potential Energy - GWhMax Potential Energy - GWhProductionLT Plan, MT Schedule, ST ScheduleFalsePotential energy of storage at max volume
Max Release Violation - MWMax Release Violation - GWhProductionLT Plan, MT Schedule, ST ScheduleFalseViolation of the [Max Release] and [Max Generator Release] constraint.
Max Release Violation Cost - $Max Release Violation Cost - $000ProductionLT Plan, MT Schedule, ST ScheduleFalseCost of [Max Release] and [Max Generator Release] constraint violations.
Max Release Violation Hours - hMax Release Violation Hours - hProductionLT Plan, MT Schedule, ST ScheduleFalseNumber of hours the [Max Release] or [Max Generator Release] constraint is violated.
Max Volume - GWhMax Volume - GWhProductionLT Plan, MT Schedule, ST ScheduleFalseMaximum volume
Max Volume Violation - MWhMax Volume Violation - GWhProductionLT Plan, MT Schedule, ST ScheduleFalseViolation of the Max Volume constraint
Max Volume Violation Cost - $Max Volume Violation Cost - $000ProductionLT Plan, MT Schedule, ST ScheduleFalseCost of Max Volume constraint violations
Min Potential Energy - GWhMin Potential Energy - GWhProductionLT Plan, MT Schedule, ST ScheduleFalsePotential energy of storage at min volume
Min Release Violation - MWMin Release Violation - GWhProductionLT Plan, MT Schedule, ST ScheduleFalseViolation of the [Min Release] constraint.
Min Release Violation Cost - $Min Release Violation Cost - $000ProductionLT Plan, MT Schedule, ST ScheduleFalseCost of [Min Release] constraint violations.
Min Release Violation Hours - hMin Release Violation Hours - hProductionLT Plan, MT Schedule, ST ScheduleFalseNumber of hours the [Min Release] constraint is violated.
Min Volume - GWhMin Volume - GWhProductionLT Plan, MT Schedule, ST ScheduleFalseMinimum volume
Min Volume Violation - MWhMin Volume Violation - GWhProductionLT Plan, MT Schedule, ST ScheduleFalseViolation of the Min Volume constraint
Min Volume Violation Cost - $Min Volume Violation Cost - $000ProductionLT Plan, MT Schedule, ST ScheduleFalseCost of Min Volume constraint violations
Natural Inflow - MWNatural Inflow - GWhProductionLT Plan, MT Schedule, ST ScheduleFalseRate of natural inflow
Natural Inflow Energy - MWhNatural Inflow Energy - GWhProductionLT Plan, MT Schedule, ST ScheduleFalsePotential energy of natural inflows
Natural Inflow Rate - MWNatural Inflow Rate - MWProductionLT Plan, MT Schedule, ST ScheduleFalseRate of natural inflow
Non-physical Inflow - MWNon-physical Inflow - GWhProductionLT Plan, MT Schedule, ST ScheduleFalseNon-physical inflow required to maintain feasible storage volumes.
Non-physical Spill - MWNon-physical Spill - GWhProductionLT Plan, MT Schedule, ST ScheduleFalseNon-physical spill required to maintain feasible storage volumes.
Pump Load - MWPump Load - GWhProductionLT Plan, MT Schedule, ST ScheduleFalseLoad drawn by exporting generators running in pumping mode
Ramp - GWhRamp - GWhProductionLT Plan, MT Schedule, ST ScheduleFalseChange in storage end volume.
Ramp Price - $/GWhRamp Price - $/GWhProductionLT Plan, MT Schedule, ST ScheduleFalseIncremental value of additional ramping capability.
Ramp Violation - GWhRamp Violation - GWhProductionLT Plan, MT Schedule, ST ScheduleFalseViolation of the [Max Ramp] constraint.
Ramp Violation Cost - $Ramp Violation Cost - $000ProductionLT Plan, MT Schedule, ST ScheduleFalseCost of [Max Ramp] constraint violations.
Ramp Violation Hours - hRamp Violation Hours - hProductionLT Plan, MT Schedule, ST ScheduleFalseNumber of hours the [Max Ramp] constraint is violated.
Release - MWRelease - GWhProductionLT Plan, MT Schedule, ST ScheduleFalseTotal releases from storage
Release Energy - MWhRelease Energy - GWhProductionLT Plan, MT Schedule, ST ScheduleFalsePotential energy of releases
Release Rate - MWRelease Rate - MWProductionLT Plan, MT Schedule, ST ScheduleFalseTotal releases from storage
Shadow Price - $/GWhShadow Price - $/GWhProductionLT Plan, MT Schedule, ST ScheduleFalseMarginal value of water held in storage
Spill - MWSpill - GWhProductionLT Plan, MT Schedule, ST ScheduleFalseSpill to "the sea"
Spill Cost - $Spill Cost - $000ProductionLT Plan, MT Schedule, ST ScheduleFalseSpill Penalty multiplied by the Spill amount
Spill Energy - MWhSpill Energy - GWhProductionLT Plan, MT Schedule, ST ScheduleFalsePotential energy of spill to "the sea"
Spill Rate - MWSpill Rate - MWProductionLT Plan, MT Schedule, ST ScheduleFalseSpill to "the sea"
Target Violation - GWhTarget Violation - GWhProductionLT Plan, MT Schedule, ST ScheduleFalseViolation of the [Target] constraint.
Target Violation Cost - $Target Violation Cost - $000ProductionLT Plan, MT Schedule, ST ScheduleFalseCost of [Target] constraint violations.
Utilization - %Utilization - %ProductionLT Plan, MT Schedule, ST ScheduleFalseStorage utilization on end volume
Working Utilization - %Working Utilization - %ProductionLT Plan, MT Schedule, ST ScheduleFalseStorage utilization based on working volume
Working Volume - GWhWorking Volume - GWhProductionLT Plan, MT Schedule, ST ScheduleFalseWorking storage volume at the end of the period
x xPass-throughLT Plan, MT Schedule, ST ScheduleTrueValue to pass-through to solution
y yPass-throughLT Plan, MT Schedule, ST ScheduleTrueValue to pass-through to solution
z zPass-throughLT Plan, MT Schedule, ST ScheduleTrueValue to pass-through to solution