NEMO includes a number of parameters that define data and set the terms for constraints. As with model dimensions, parameters are specified in a NEMO scenario database. NEMO reads them from the database and uses them to build constraints at run-time. Generally, NEMO does not create separate Julia variables for parameters.
Most parameters are subscripted by one or more dimensions. Parameter tables in a scenario database refer to dimensions by their abbreviation (r for region, t for technology, and so on). The abbreviation serves as the name of the dimension's column, and the column should be populated with unique identifiers for the dimension (val, name, or id, depending on the dimension).
Documentation for individual parameters is organized into the following pages by modeling topic.
The table below lists all NEMO parameters alphabetically, with the name of the corresponding scenario database table and a link to the parameter's documentation.
| Parameter | Scenario database table | Page |
|---|
| Accumulated annual demand | AccumulatedAnnualDemand | Demands |
| Annual emission limit | AnnualEmissionLimit | Emissions |
| Annual exogenous emission | AnnualExogenousEmission | Emissions |
| Availability factor | AvailabilityFactor | Technology performance and operation |
| Capacity of one technology unit | CapacityOfOneTechnologyUnit | Technology performance and operation |
| Capacity to activity unit | CapacityToActivityUnit | Technology performance and operation |
| Capital cost | CapitalCost | Costs, financing, and subsidies |
| Capital cost storage | CapitalCostStorage | Storage |
| Default parameters | DefaultParams | Model structure and groupings |
| Depreciation method | DepreciationMethod | Costs, financing, and subsidies |
| Discount rate | DiscountRate | Costs, financing, and subsidies |
| Emission penalty | EmissionsPenalty | Emissions |
| Emissions activity ratio | EmissionActivityRatio | Emissions |
| Fixed cost | FixedCost | Costs, financing, and subsidies |
| Interest rate storage | InterestRateStorage | Storage |
| Interest rate technology | InterestRateTechnology | Costs, financing, and subsidies |
| Input activity ratio | InputActivityRatio | Technology performance and operation |
| Maximum annual transmission between nodes | MaxAnnualTransmissionNodes | Transmission, nodes, and trade |
| Maximum production share | MaxShareProduction | Activity limits and production shares |
| Maximum subsidies per technology | MaxSubsidyPerTechnology | Costs, financing, and subsidies |
| Maximum subsidies per technology group | MaxSubsidyPerTechnologyGroup | Costs, financing, and subsidies |
| Maximum subsidies per region | MaxSubsidyPerRegion | Costs, financing, and subsidies |
| Minimum annual transmission between nodes | MinAnnualTransmissionNodes | Transmission, nodes, and trade |
| Minimum production share | MinShareProduction | Activity limits and production shares |
| Minimum storage charge | MinStorageCharge | Storage |
| Minimum utilization | MinimumUtilization | Technology performance and operation |
| Model period emission limit | ModelPeriodEmissionLimit | Emissions |
| Model period exogenous emission | ModelPeriodExogenousEmission | Emissions |
| Nodal distribution demand | NodalDistributionDemand | Transmission, nodes, and trade |
| Nodal distribution storage capacity | NodalDistributionStorageCapacity | Transmission, nodes, and trade |
| Nodal distribution technology capacity | NodalDistributionTechnologyCapacity | Transmission, nodes, and trade |
| Operational life | OperationalLife | Technology performance and operation |
| Operational life storage | OperationalLifeStorage | Storage |
| Output activity ratio | OutputActivityRatio | Technology performance and operation |
| Ramp rate | RampRate | Technology performance and operation |
| Ramping reset | RampingReset | Technology performance and operation |
| Region group assignment | RRGroup | Model structure and groupings |
| Renewable energy minimum production target (by region) | REMinProductionTarget | Activity limits and production shares |
| Renewable energy minimum production target (by region group) | REMinProductionTargetRG | Activity limits and production shares |
| Renewable energy tag technology | RETagTechnology | Activity limits and production shares |
| Reserve margin | ReserveMargin | Reserve margins |
| Reserve margin tag technology | ReserveMarginTagTechnology | Reserve margins |
| Residual capacity | ResidualCapacity | Technology performance and operation |
| Residual storage capacity | ResidualStorageCapacity | Storage |
| Specified annual demand | SpecifiedAnnualDemand | Demands |
| Specified demand profile | SpecifiedDemandProfile | Demands |
| Storage full load hours | StorageFullLoadHours | Storage |
| Storage maximum charge rate | StorageMaxChargeRate | Storage |
| Storage maximum discharge rate | StorageMaxDischargeRate | Storage |
| Storage start level | StorageLevelStart | Storage |
| Technology from storage | TechnologyFromStorage | Storage |
| Technology group assignment | TTGroup | Model structure and groupings |
| Technology subsidy | TechnologySubsidy | Costs, financing, and subsidies |
| Technology to storage | TechnologyToStorage | Storage |
| Time slice group assignment | LTsGroup | Model structure and groupings |
| Total annual maximum capacity | TotalAnnualMaxCapacity | Capacity and investment limits |
| Total annual maximum capacity investment | TotalAnnualMaxCapacityInvestment | Capacity and investment limits |
| Total annual maximum capacity (by region group) | TotalAnnualMaxCapacityRG | Capacity and investment limits |
| Total annual maximum capacity investment (by region group) | TotalAnnualMaxCapacityInvestmentRG | Capacity and investment limits |
| Total annual maximum capacity (by technology group) | TotalAnnualMaxCapacityTG | Capacity and investment limits |
| Total annual maximum capacity investment (by technology group) | TotalAnnualMaxCapacityInvestmentTG | Capacity and investment limits |
| Total annual maximum capacity storage | TotalAnnualMaxCapacityStorage | Storage |
| Total annual maximum capacity investment storage | TotalAnnualMaxCapacityInvestmentStorage | Storage |
| Total annual minimum capacity | TotalAnnualMinCapacity | Capacity and investment limits |
| Total annual minimum capacity investment | TotalAnnualMinCapacityInvestment | Capacity and investment limits |
| Total annual minimum capacity (by region group) | TotalAnnualMinCapacityRG | Capacity and investment limits |
| Total annual minimum capacity investment (by region group) | TotalAnnualMinCapacityInvestmentRG | Capacity and investment limits |
| Total annual minimum capacity (by technology group) | TotalAnnualMinCapacityTG | Capacity and investment limits |
| Total annual minimum capacity investment (by technology group) | TotalAnnualMinCapacityInvestmentTG | Capacity and investment limits |
| Total annual minimum capacity storage | TotalAnnualMinCapacityStorage | Storage |
| Total annual minimum capacity investment storage | TotalAnnualMinCapacityInvestmentStorage | Storage |
| Total technology annual activity lower limit | TotalTechnologyAnnualActivityLowerLimit | Activity limits and production shares |
| Total technology annual activity upper limit | TotalTechnologyAnnualActivityUpperLimit | Activity limits and production shares |
| Total technology model period activity lower limit | TotalTechnologyModelPeriodActivityLowerLimit | Activity limits and production shares |
| Total technology model period activity upper limit | TotalTechnologyModelPeriodActivityUpperLimit | Activity limits and production shares |
| Trade route | TradeRoute | Transmission, nodes, and trade |
| Transmission availability factor | TransmissionAvailabilityFactor | Transmission, nodes, and trade |
| Transmission capacity to activity unit | TransmissionCapacityToActivityUnit | Transmission, nodes, and trade |
| Transmission maximum annual capacity investment | TransmissionAnnualMaxCapacityInvestment | Transmission, nodes, and trade |
| Transmission minimum annual capacity investment | TransmissionAnnualMinCapacityInvestment | Transmission, nodes, and trade |
| Transmission modeling enabled | TransmissionModelingEnabled | Transmission, nodes, and trade |
| Variable cost | VariableCost | Costs, financing, and subsidies |
| Year split | YearSplit | Model structure and groupings |