Input Data¶

All the input files must be in the same folder as the openSDUC Python file.

Dictionaries. Sets¶

The dictionaries include all the possible elements of the corresponding sets included in the optimization problem.

File	Description
`oT_Dict_Scenario.csv`	Scenario. Short-term uncertainties (scenarios) (e.g., s001 to s100)
`oT_Dict_LoadLevel.csv`	Load level (e.g., 2020-01-01T00:00:00+01:00 to 2020-01-07T23:00:00+01:00). Load levels with duration 0 are ignored
`oT_Dict_Generation.csv`	Generation units (thermal, ESS, and variable)
`oT_Dict_Technology.csv`	Generation technologies
`oT_Dict_Company.csv`	Companies
`oT_Dict_Storage.csv`	ESS type (daily, weekly, monthly)

Input files¶

This is the list of the input data files and their brief description.

File	Description
`oT_Data_Parameter.csv`	General system parameters
`oT_Data_Duration.csv`	Duration of the load levels
`oT_Data_Scenario.csv`	Short-term uncertainties
`oT_Data_Demand.csv`	Demand
`oT_Data_OperatingReserve.csv`	Upward and downward operating reserves (include aFRR, mFRR, and RR for electricity balancing from ENTSO-E)
`oT_Data_Generation.csv`	Generation data
`oT_Data_EnergyInflows.csv`	Energy inflows for ESS (e.g., storage hydro or open-loop pumped-storage hydro) by load level
`oT_Data_MinimumGeneration.csv`	Variable minimum power generation by load level
`oT_Data_MaximumGeneration.csv`	Variable minimum power generation by load level
`oT_Data_MaximumStorage.csv`	Variable maximum storage by load level
`oT_Data_MinimumStorage.csv`	Variable minimum storage by load level

Parameters¶

A description of the system parameters included in the file oT_Data_Parameter.csv follows:

File	Description
ENSCost	Cost of energy not served. Cost of load curtailment. Value of Lost Load (VoLL)	€/MWh
CO2Cost	Cost of CO2 emissions	€/tCO2
TimeStep	Duration of the time step for the load levels (hourly, bi-hourly, tri-hourly, etc.).	h

A time step greater than one hour is a convenient way to reduce the load levels of the time scope. The moving average of the demand, operating reserve, variable generation, and ESS energy inflows over the time step load levels are assigned to active load levels (e.g., the mean value of the three hours is associated with the third hour in a trihourly time step).

Duration¶

A description of the data included in the file oT_Data_Duration.csv follows:

Identifier	Header	Description
Load level	Duration	Duration of the load level. Load levels with duration 0 are ignored	h

It is a simple way to use isolated snapshots, representative days, or just the first three months instead of all the hours of a year to simplify the optimization problem.

Scenario¶

A description of the data included in the file oT_Data_Scenario.csv follows:

Identifier	Header	Description
Scenario	Probability	Probability of the scenario	p.u.

Demand¶

A description of the data included in the file oT_Data_Demand.csv follows:

Identifiers		Description
Scenario	Load level	Power demand in the load level	MW

Internally, all the values below 1e-5 times the maximum system demand will be converted into 0 by the model.

Operating reserves¶

A description of the data included in the file oT_Data_OperatingReserve.csv follows:

Identifiers		Header	Description
Scenario	Load level	Up	Upward operating reserves in the load level	MW
Scenario	Load level	Down	Downward operating reserves in the load level	MW

These operating reserves must include Automatic Frequency Restoration Reserves (aFRR), Manual Frequency Restoration Reserves (mFRR) and Replacement Reserves (RR) for electricity balancing from ENTSO-E. Internally, all the values below 1e-5 times the maximum system demand will be converted into 0 by the model.

Generation¶

A description of the data included for each generating unit in the file oT_Data_Generation.csv follows:

Header	Description
Technology	Technology of the generator (nuclear, coal, CCGT, OCGT, ESS, etc.)
Company	Name of the company owning the generator
StorageType	Storage type (daily, weekly, monthly, etc.)	Daily/Weekly/Monthly
MaximumPower	Maximum power output (discharge for ESS units)	MW
MinimumPower	Minimum power output	MW
MaximumCharge	Maximum charge when storing energy the ESS unit	MW
InitialStorage	Initial energy stored at the first instant of the time scope	GWh
MaximumStorage	Maximum energy that can be stored by the ESS unit	GWh
MinimumStorage	Minimum energy that can be stored by the ESS unit	GWh
Efficiency	Round-trip efficiency in the charge/discharge cycle	p.u.
RampUp	Ramp up rate	MW/h
RampDown	Ramp down rate	MW/h
UpTime	Minimum uptime	h
DownTime	Minimum downtime	h
FuelCost	Fuel cost	€/Mcal
LinearTerm	Linear term (slope) of the heat rate straight line	Mcal/MWh
ConstantTerm	Constant term (intercept) of the heat rate straight line	Mcal/h
OMVariableCost	O&M variable cost	€/MWh
StartUpCost	Startup cost	M€
ShutDownCost	Shutdown cost	M€
CO2EmissionRate	CO2 emission rate	tCO2/MWh

A generator with linear variable cost > 0 is considered a thermal unit. If its maximum storage > 0 is considered an ESS. Internally, all the maximum and minimum power values below 1e-5 times the maximum system demand will be converted to 0 by the model.

The startup cost of generating units refers to the expenses incurred when bringing a power generation unit online, from an idle state to a point where it can produce electricity.

Energy inflows¶

A description of the data included in the file oT_Data_EnergyInflows.csv follows:

Identifiers		Header	Description
Scenario	Load level	Generator	Energy inflows by load level	MW

Internally, all the values below 1e-5 times the maximum system demand will be converted into 0 by the model.

Variable maximum and minimum generation¶

A description of the data included in the file oT_Data_MaximumGeneration.csv and oT_Data_MinimumGeneration.csv follows:

Identifiers		Header	Description
Scenario	Load level	Generator	Maximum (minimum) power generation of the unit by load level	MW

To force a generator to produce 0 a small value (e.g., 0.1 MW) strictly > 0, but not 0 (in which case the value will be ignored), must be introduced. Internally, all the values below 1e-5 times the maximum system demand will be converted into 0 by the model. Columns of this file (names of the generators) must be in the same order as in the generation dictionary.

Variable maximum and minimum storage¶

A description of the data included in the files oT_Data_MaximumStorage.csv and oT_Data_MinimumStorage.csv follows:

Identifiers		Header	Description
Scenario	Load level	Generator	Maximum (minimum) storage of the ESS by load level	GWh

All the generators must be defined as columns of these files. Internally, all the values below 1e-5 times the maximum system demand will be converted into 0 by the model.