Heat Plant Index
Heat Plant Input Properties
| Name | Units | Multi-band | Default Value | Validation Rule | Key Property | Description |
|---|---|---|---|---|---|---|
| Build Cost | $000 | True | 0 | False | Cost of building a unit | |
| Build Non-anticipativity | $/MW | False | -1 | False | Price for violating non-anticipativity constraints in scenario-wise decomposition mode | |
| Economic Life | yr | False | 30 | ≥0 | False | Economic life of the Heat Plant (period over which fixed costs are recovered). |
| Efficiency Base | GJ (Metric), MMBtu (U.S. Imperial) | True | 0 | False | Heat production no-load efficiency | |
| Efficiency Incr | GJ/GJ (Metric), MMBtu/MMBtu (U.S. Imperial) | True | 1 | False | Heat production efficiency | |
| FO&M Charge | $000 | False | 0 | False | Annual fixed operation and maintenance charge | |
| Heat Rate | GJ/GJ (Metric), MMBtu/MMBtu (U.S. Imperial) | True | 0 | ≥0 | False | Average heat rate (total fuel divided by total heat production) |
| Heat Rate Base | GJ/h (Metric), MMBtu/h (U.S. Imperial) | False | 0 | ≥0 | False | Constant term in fuel use function (no-load cost) |
| Heat Rate Incr | GJ/GJ (Metric), MMBtu/MMBtu (U.S. Imperial) | True | 1 | ≥0 | False | First-order polynomial term in unit fuel use function (marginal heat rate) |
| Lead Time | yr | False | 0 | ≥0 | False | Number of years after which the expansion project can begin |
| Load Point | GJ (Metric), MMBtu (U.S. Imperial) | True | 0 | ≥0 | False | Load point for use with multi-point heat rate. |
| Max Capacity | GJ/h (Metric), MMBtu/h (U.S. Imperial) | False | 0 | False | Maximum heat production | |
| Max Down Time | h | False | 0 | ≥0 | False | Maximum number of hours a unit can be off after being shut down |
| Max Ramp Down | GJ/h (Metric), MMBtu/h (U.S. Imperial) | False | 1E+30 | ≥0 | False | Maximum ramp down rate |
| Max Ramp Up | GJ/h (Metric), MMBtu/h (U.S. Imperial) | False | 1E+30 | ≥0 | False | Maximum ramp up rate |
| Max Units Built | - | False | 0 | ≥0 | False | Maximum number of units automatically constructed in aggregate over the planning horizon |
| Max Units Built in Year | - | False | 1 | ≥0 | False | Maximum number of units automatically constructed in any single year of the planning horizon |
| Max Units Retired | - | False | 0 | ≥0 | False | Maximum number of units automatically retired in aggregate over the planning horizon |
| Max Units Retired in Year | - | False | 1 | ≥0 | False | Maximum number of units automatically retired in any single year of the planning horizon |
| Max Up Time | h | False | 0 | ≥0 | False | Maximum number of hours a unit can be run after being started |
| Min Down Time | h | False | 0 | ≥0 | False | Minimum number of hours a unit must be off after being shut down |
| Min Stable Level | GJ (Metric), MMBtu (U.S. Imperial) | False | 0 | ≥0 | False | Minimum stable Heat Production level |
| Min Units Built | - | False | 0 | ≥0 | False | Minimum number of units automatically constructed in aggregate over the planning horizon |
| Min Units Built in Year | - | False | 0 | ≥0 | False | Minimum number of units automatically constructed in any single year of the planning horizon |
| Min Units Retired | - | False | 0 | ≥0 | False | Minimum number of units automatically retired in aggregate over the planning horizon |
| Min Units Retired in Year | - | False | 0 | ≥0 | False | Minimum number of units automatically retired in any single year of the planning horizon |
| Min Up Time | h | False | 0 | ≥0 | False | Minimum number of hours a unit must be run after being started |
| Project Start Date | - | False | 36526 | ≥0 | False | Start date of gas node project, for expansion planning. |
| Retire Non-anticipativity | $/MW | False | -1 | False | Price for violating non-anticipativity constraints in scenario-wise decomposition mode | |
| Retirement Cost | $000 | False | 0 | False | Cost of retiring the Heat Plant | |
| Run Up Rate | GJ/h (Metric), MMBtu/h (U.S. Imperial) | True | 1E+30 | ≥0 | False | Ramp rate that applies while running the unit up from zero to [Min Stable Level]. |
| Start Cost | $ | True | 0 | ≥0 | False | Cost of starting a unit |
| Start Cost Time | h | True | 0 | ≥0 | False | Incremental cooling time over which the corresponding Start Cost applies |
| Start Profile | GJ (Metric), MMBtu (U.S. Imperial) | True | 1E+30 | False | Detailed regime for running the unit up from zero to [Min Stable Level] when [Run Up Rate] is non-constant. | |
| Technical Life | yr | False | 1E+30 | ≥0 | False | Technical lifetime of the Heat Plant |
| Unit Commitment Optimality | - | False | -1 | In (-1,0,1,2,3) | False | Unit commitment integerization scheme for the Heat Plant. |
| Units | - | False | 1 | In (0,1) | True | Number of Heat Plant units in service |
| VO&M Charge | $/GJ (Metric), $/MMBtu (U.S. Imperial) | False | 0 | False | Variable operation and maintenance charge | |
| WACC | % | False | 10 | ≥0 | False | Weighted average cost of capital |
| x | - | True | 0 | False | Value to pass-through to solution | |
| y | - | True | 0 | False | Value to pass-through to solution | |
| z | - | True | 0 | False | Value to pass-through to solution |
Heat Plant Fuels Input Properties
| Name | Units | Multi-band | Default Value | Validation Rule | Key Property | Description |
|---|---|---|---|---|---|---|
| Heat Rate | GJ/GJ (Metric), MMBtu/MMBtu (U.S. Imperial) | True | 1 | False | Heat-rate at load point (used with Load Point) or 'b' in the heat input function | |
| Heat Rate Base | GJ/h (Metric), MMBtu/h (U.S. Imperial) | False | 0 | False | Constant term in fuel use function (no-load cost) | |
| Heat Rate Incr | GJ/GJ (Metric), MMBtu/MMBtu (U.S. Imperial) | True | 1 | False | Average marginal heat-rate in band | |
| Heat Rate Scalar | - | False | 1 | ≥0 | False | Scalar on base heat plant heat rate function |
| Is Available | Yes/No | False | -1 | In (0,-1) | False | If the fuel is available for use by the generator |
| Max Input | GJ (Metric), MMBtu (U.S. Imperial) | False | 1E+30 | ≥0 | False | Maximum amount of fuel input to heat plant |
| Max Ratio | - | False | 1 | Between 0 And 1 | False | Maximum fuel mix ratio |
| Min Ratio | - | False | 0 | Between 0 And 1 | False | Minimum fuel mix ratio |
| Mutually Exclusive | Yes/No | False | 0 | In (0,-1) | False | If the Fuel cannot be mixed with other Fuels associated with this heat plant. |
| Ratio | - | False | 1 | Between 0 And 1 | False | Fixed fuel mix ratio |
Heat Plant Start Fuels Input Properties
| Name | Units | Multi-band | Default Value | Validation Rule | Key Property | Description |
|---|---|---|---|---|---|---|
| Offtake at Start | GJ (Metric), MMBtu (U.S. Imperial) | True | 0 | ≥0 | False | Fuel required to start a unit |
Heat Plant Heat Output Nodes Input Properties
| Name | Units | Multi-band | Default Value | Validation Rule | Key Property | Description |
|---|---|---|---|---|---|---|
| Participation Factor | - | False | 1 | Between -1 And 1 | False | Proportion sent to the node |
Heat Plant Constraints Input Properties
| Name | Units | Multi-band | Default Value | Validation Rule | Key Property | Description |
|---|---|---|---|---|---|---|
| Fuel Offtake Coefficient | GJ (Metric), MMBtu (U.S. Imperial) | False | 0 | False | Coefficient of fuel offtake | |
| Heat Production Coefficient | GJ (Metric), MMBtu (U.S. Imperial) | False | 0 | False | Coefficient of heat production | |
| Units Generating Coefficient | - | False | 0 | False | Coefficient on the number of units generating |
Heat Plant Objectives Input Properties
| Name | Units | Multi-band | Default Value | Validation Rule | Key Property | Description |
|---|---|---|---|---|---|---|
| Fuel Offtake Coefficient | GJ (Metric), MMBtu (U.S. Imperial) | False | 0 | False | Coefficient of fuel offtake of the heat plant | |
| Heat Production Coefficient | GJ (Metric), MMBtu (U.S. Imperial) | False | 0 | False | Coefficient of heat production | |
| Units Generating Coefficient | - | False | 0 | False | Coefficient on the number of units generating |
Heat Plant Conditions Input Properties
| Name | Units | Multi-band | Default Value | Validation Rule | Key Property | Description |
|---|---|---|---|---|---|---|
| Fuel Offtake Coefficient | GJ (Metric), MMBtu (U.S. Imperial) | False | 0 | False | Coefficient of fuel offtake in condition |
Heat Plant Output Properties
| Name | Summary Name | Property Group | Phases | Multi-band | Description |
|---|---|---|---|---|---|
| Annualized Build Cost - $000 | Annualized Build Cost - $000 | Expansion | LT Plan | False | Annualized cost of units built |
| Average Heat Rate - GJ/GJ (Metric), MMBtu/MMBtu (U.S. Imperial) | Average Heat Rate - GJ/GJ (Metric), MMBtu/MMBtu (U.S. Imperial) | Production | LT Plan, MT Schedule, ST Schedule | False | Average heat rate |
| Build Cost - $000 | Build Cost - $000 | Expansion | LT Plan | False | Cost of building a unit |
| Efficiency - GJ/GJ (Metric), MMBtu/MMBtu (U.S. Imperial) | Efficiency - GJ/GJ (Metric), MMBtu/MMBtu (U.S. Imperial) | Production | LT Plan, MT Schedule, ST Schedule | False | Efficiency of heat production |
| Electrical Usage - MW | Electrical Usage - GWh | Production | LT Plan, MT Schedule, ST Schedule | False | Electrical usage from the electric boiler |
| FO&M Cost - $ | FO&M Cost - $000 | Production | LT Plan, MT Schedule, ST Schedule | False | Fixed operation and maintenance cost |
| Fuel Offtake - GJ (Metric), MMBtu (U.S. Imperial) | Fuel Offtake - TJ (Metric), BBtu (U.S. Imperial) | Production | LT Plan, MT Schedule, ST Schedule | False | Fuel offtake |
| Heat Production - GJ (Metric), MMBtu (U.S. Imperial) | Heat Production - TJ (Metric), BBtu (U.S. Imperial) | Production | LT Plan, MT Schedule, ST Schedule | False | Heat production |
| Heat Production Cost - $ | Heat Production Cost - $000 | Production | LT Plan, MT Schedule, ST Schedule | False | Heat production cost |
| Installed Capacity - GJ/h (Metric), MMBtu/h (U.S. Imperial) | Installed Capacity - GJ/h (Metric), MMBtu/h (U.S. Imperial) | Capacity | LT Plan, MT Schedule, ST Schedule | False | Installed capacity |
| Marginal Heat Rate - GJ/GJ (Metric), MMBtu/MMBtu (U.S. Imperial) | Marginal Heat Rate - GJ/GJ (Metric), MMBtu/MMBtu (U.S. Imperial) | Production | LT Plan, MT Schedule, ST Schedule | False | Marginal heat rate at optimal heat production level |
| Operating Hours - h | Operating Hours - h | Production | LT Plan, MT Schedule, ST Schedule | False | Number of hours of operation. |
| Ramp - GJ/h (Metric), MMBtu/h (U.S. Imperial) | Production | LT Plan, MT Schedule, ST Schedule | False | Rate at which units are ramping | |
| Ramp Down - GJ (Metric), MMBtu (U.S. Imperial) | Ramp Down - GJ (Metric), MMBtu (U.S. Imperial) | Production | LT Plan, MT Schedule, ST Schedule | False | Total ramping down |
| Ramp Up - GJ (Metric), MMBtu (U.S. Imperial) | Ramp Up - GJ (Metric), MMBtu (U.S. Imperial) | Production | LT Plan, MT Schedule, ST Schedule | False | Total ramping up |
| Retirement Cost - $000 | Retirement Cost - $000 | Expansion | LT Plan | False | Cost of retiring the Heat Plant |
| SRMC - $/GJ (Metric), $/MMBtu (U.S. Imperial) | SRMC - $/GJ (Metric), $/MMBtu (U.S. Imperial) | Production | LT Plan, MT Schedule, ST Schedule | False | Short-run marginal cost (Fuel + VO&M + Emissions) |
| Start & Shutdown Cost - $ | Start & Shutdown Cost - $000 | Production | LT Plan, MT Schedule, ST Schedule | False | Cost of unit starts and shutdowns |
| Start Fuel Cost - $ | Start Fuel Cost - $000 | Production | LT Plan, MT Schedule, ST Schedule | False | Cost of fuel for unit starts |
| Start Fuel Offtake - GJ (Metric), MMBtu (U.S. Imperial) | Start Fuel Offtake - TJ (Metric), BBtu (U.S. Imperial) | Production | LT Plan, MT Schedule, ST Schedule | False | Start fuel offtake |
| Units Built | Units Built | Expansion | LT Plan | False | Number of Heat Plant units built in this year |
| Units Producing Heat | Production | LT Plan, MT Schedule, ST Schedule | False | Number of units producing heat | |
| Units Retired | Units Retired | Expansion | LT Plan | False | Number of Heat Plant units retired in this year |
| VO&M Cost - $ | VO&M Cost - $000 | Production | LT Plan, MT Schedule, ST Schedule | False | Total variable operation and maintenance cost |
| x | x | Pass-through | LT Plan, MT Schedule, ST Schedule | True | Value to pass-through to solution |
| y | y | Pass-through | LT Plan, MT Schedule, ST Schedule | True | Value to pass-through to solution |
| z | z | Pass-through | LT Plan, MT Schedule, ST Schedule | True | Value to pass-through to solution |
Heat Plant.Fuels Output Properties
| Name | Summary Name | Property Group | Phases | Multi-band | Description |
|---|---|---|---|---|---|
| Cost - $ | Cost - $000 | Production | LT Plan, MT Schedule, ST Schedule | False | Total cost of fuel used |
| Hours in Use - h | Hours in Use - h | Production | LT Plan, MT Schedule, ST Schedule | False | Number of hours the Fuel is in use by the heat plant |
| Marginal Heat Rate - GJ/GJ (Metric), MMBtu/MMBtu (U.S. Imperial) | Marginal Heat Rate - GJ/GJ (Metric), MMBtu/MMBtu (U.S. Imperial) | Production | LT Plan, MT Schedule, ST Schedule | False | Marginal heat rate at optimal heat production level |
| Offtake - GJ (Metric), MMBtu (U.S. Imperial) | Offtake - TJ (Metric), BBtu (U.S. Imperial) | Production | LT Plan, MT Schedule, ST Schedule | False | Fuel offtake |
| Offtake Ratio - % | Offtake Ratio - % | Production | LT Plan, MT Schedule, ST Schedule | False | Proportion of fuel used by the heat plant |
| Price - $/GJ (Metric), $/MMBtu (U.S. Imperial) | Price - $/GJ (Metric), $/MMBtu (U.S. Imperial) | Production | LT Plan, MT Schedule, ST Schedule | False | Fuel price |
| SRMC - $/GJ (Metric), $/MMBtu (U.S. Imperial) | SRMC - $/GJ (Metric), $/MMBtu (U.S. Imperial) | Production | LT Plan, MT Schedule, ST Schedule | False | Short-run marginal cost (Fuel + VO&M + Emissions) |
Heat Plant.Start Fuels Output Properties
| Name | Summary Name | Property Group | Phases | Multi-band | Description |
|---|---|---|---|---|---|
| Cost - $ | Cost - $000 | Production | LT Plan, MT Schedule, ST Schedule | False | Total cost of fuel used |
| Offtake - GJ (Metric), MMBtu (U.S. Imperial) | Offtake - TJ (Metric), BBtu (U.S. Imperial) | Production | LT Plan, MT Schedule, ST Schedule | False | Fuel offtake |
| Price - $/GJ (Metric), $/MMBtu (U.S. Imperial) | Price - $/GJ (Metric), $/MMBtu (U.S. Imperial) | Production | LT Plan, MT Schedule, ST Schedule | False | Fuel price |