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SDDP

SDDP 18.0.5rc1

📅 Date: 2025-10-06
🔗 Download: Windows | Linux

Operation Planning Module (SDDP)

Fixed issues

  • Fixed case load issue when subset of systems is selected

Expansion Planning Module (OptGen)

Fixed Issues

OptGen 1

  • Fixed case load issue when subset of systems is selected

    OptGen 2

  • Added Energy Efficiency, Flow Controller and Three-Winding Transformer to expansion constraints

SDDP 18.0.4

📅 Date: 2025-10-01
🔗 Download: Windows | Linux

Expansion Planning Module (OptGen)

Fixed Issues

OptGen 1

  • Fixed reading of hydro production factors.
  • Fixed reading of demand sensitivities.
  • Fixed writing of Flow Controller investment decisions in the expansion plan.

    OptGen 2

  • Fixed handling of agent-specific sensitivities.

SDDP 18.0.4rc11

📅 Date: 2025-09-30
🔗 Download: Windows | Linux

Operation Planning Module (SDDP)

Fixed issues

  • Fixed intermittent issue that prevented execution

SDDP 18.0.4rc10

📅 Date: 2025-09-29
🔗 Download: Windows | Linux

Operation Planning Module (SDDP)

Fixed issues

  • Hourly representation
    • Adjusted linearized transmission losses output writing

SDDP 18.0.4rc9

📅 Date: 2025-09-26
🔗 Download: Windows | Linux

Operation Planning Module (SDDP)

Fixed issues

  • Fixed parallel execution with Markov clusters and forward inflows
  • Fixed initial battery storage output
  • Fixed option to calculate load matrix for each month in hydro inflows generation

SDDP 18.0.4rc8

📅 Date: 2025-09-17
🔗 Download: Windows | Linux

Graphical user interface

New features and improvements

  • Included check for frequent execution errors, indicating the correspondent Knowledge Hub article

Post-contingency analysis

Fixed issues

  • Fixed the consideration of network modifications
  • Fixed the loading of the bus injection output in CSV format when there was also a binary file

SDDP 18.0.4rc7

📅 Date: 2025-09-15
🔗 Download: Windows | Linux

Operation Planning Module (SDDP)

Fixed issues

  • Fixed the representation of generic interpolation constraints in the backward phase
  • Fixed the generic interpolation constraint marginal cost output
  • Fixed the consideration of hydro mean production coefficient modifications with 8 characters

Expansion Planning Module (OptGen)

Fixed Issues

OptGen 1

  • Fixed the creation of hydro mean production coefficient modifications with 8 characters in the SDDP integration

OptGen 2

  • Fixed the preference of explicit sensitivity factors over implicit ones for input files saved by version 18 GUI

SDDP 18.0.4rc6

📅 Date: 2025-09-12
🔗 Download: Windows | Linux

Operation Planning Module (SDDP)

Fixed issues

  • Fixed the preference of explicit sensitivity factors over implicit ones for input files saved by version 18 GUI
  • Fixed an issue that prevented the execution of coordinated cases with batteries
  • Hourly representation
    • Fixed the calculation of bus marginal costs when there are circuits with the following representations: cost, participation in reserve sharing or in generic constraints
    • Included the application of the renewable generation sensitivity factor

Graphical user interface

New features and improvements

  • Changed default MPI library during installation from MPICH2 to MS-MPI. The compatibility with MPICH2 will be deprecated in the near future

Fixed issues

  • Fixed import/export of renewable plant configuration

SDDP 18.0.4rc5

📅 Date: 2025-09-10
🔗 Download: Windows | Linux

Operation Planning Module (SDDP)

New features and improvements

  • Included the possibility of defining thermal plants with negative specific consumption, as long as the total fuel consumed is positive

Fixed issues

  • Fixed an issue that prevented the execution of cases with energy efficiency

Post-contingency analysis

Fixed issues

  • Fixed execution issues

SDDP 18.0.4rc4

📅 Date: 2025-09-09
🔗 Download: Windows | Linux

Operation Planning Module (SDDP)

Fixed issues

  • Fixed an specific issue that prevented execution

SDDP 18.0.4rc3

📅 Date: 2025-09-04
🔗 Download: Windows | Linux

Operation Planning Module (SDDP)

New features and improvements

  • New output: generic interpolation constraint requirement

Fixed issues

  • Fixed the display of some validation error messages

SDDP 18.0.4rc2

📅 Date: 2025-09-02
🔗 Download: Windows | Linux

Graphical user interface

New features and improvements

  • Reduced internet access during setup installation

SDDP 18.0.4rc1

📅 Date: 2025-09-01
🔗 Download: Windows | Linux

Expansion Planning Module (OptGen)

Fixed issues

OptGen 1

  • Fixed an issue related to the execution of coordinated cases

SDDP 18.0.3

📅 Date: 2025-08-29
🔗 Download: Windows | Linux

Operation Planning Module (SDDP)

New features and improvements

  • Changed header of CSV output files to always be in english

Fixed issues

  • Fixed a possible infinite loop in cases with circuit projects in OptGen integration
  • Hourly representation
    • Fixed an issue introduced in recent versions in the correct consideration of thermal plant operation mode (standard or must-run)

Expansion Planning Module (OptGen)

Fixed issues

OptGen 2

  • Fixed an issue with the Firm Capacity Automatic Calculation (PFCA,1) feature
  • Fixed an issue with multi-fuel thermal plants with fuel exclusive generation

SDDP 18.0.3rc6

📅 Date: 2025-08-27
🔗 Download: Windows | Linux

Operation Planning Module (SDDP)

New features and improvements

  • Added transformer flow and DC line flow variables to generic constraints
  • New output: energy efficiency applied

Fixed issues

  • Compatibilized the maximum battery charging capacity between the hourly and block models. Now, the maximum charging capacity is applied to the energy inside the battery in the block model, as previously done in the hourly model
  • Fixed the application of an hourly energy efficiency defined in p.u. to an hourly demand
  • Fixed an issue in the representation of the Markov infow model in a simulation execution
  • Fixed multi-fuel thermal plant association to electrical bus for cases created in version 18

Graphical user interface

Fixed issues

  • Fixed an issue that prevented the use of the hot-start option
  • Fixed the thermal operation mode field definition

SDDP 18.0.3rc5

📅 Date: 2025-08-25
🔗 Download: Windows | Linux

Operation Planning Module (SDDP)

Fixed issues

  • Fixed sum of circuit flow constraint unlimited lower bound option

SDDP 18.0.3rc4

📅 Date: 2025-08-24
🔗 Download: Windows | Linux

Expansion Planning Module (OptGen)

Fixed issues

OptGen 1

  • Fixed an issue with post processing tool (PSRIO)
  • Fixed an issue with resilience planning and rolling horizons

SDDP 18.0.3rc3

📅 Date: 2025-08-19
🔗 Download: Windows | Linux

Operation Planning Module (SDDP)

Fixed issues

  • Fixed an specific issue that prevented the execution when using the Markov inflow model
  • Included the representation of the start-up cost for hydro plants with commitment representation in the block resolution

Graphical user interface

Fixed issues

  • Fixed import/export of blank values in the historical inflow data per stage
  • Fixed file format of the hourly historical inflow data

SDDP 18.0.3rc2

📅 Date: 2025-08-13
🔗 Download: Windows | Linux

Maintenance Planning Module (OptMain)

Fixed issues

  • Fixed an error related to weekly stages cases

SDDP 18.0.3rc1

📅 Date: 2025-08-07
🔗 Download: Windows | Linux

Operation Planning Module (SDDP)

Fixed issues

  • Fixed the loading of CSP bus connection

Expansion Planning Module (OptGen)

Fixed Issues

OptGen 2

  • Fixed an error related to the installed capacity of future projects in min/max investment constraints
  • Fixed an error in generic operative constraints including demand segment variables
  • Fixed an error related to operative generic constraints
  • Fixed an error in generic operative constraints including demand segment variables

New features and improvements

OptGen 2

  • Improve warning message of excess generation infeasibility showing the name of each bus/area/system where it occurs

SDDP 18.0.2

📅 Date: 2025-08-01
🔗 Download: Windows | Linux

Operation Planning Module (SDDP)

Fixed issues

  • Fixed the writing of some outputs in typical days execution with aggregation in the policy phase
  • Hourly representation
    • Fixed the consideration of generation offers

Expansion Planning Module (OptGen)

Fixed Issues

OptGen 1

  • Fixed an error with energy efficiency projects with data defined in p.u of the demand
  • Fixed an error when there are generic investment constraints and no min/max constraint
  • Fixed errors when running OptGen with PSRCloud 5.4

OptGen 2

  • Fixed data validation issues when running with TSL scenarios
  • Fixed an error related to reserve requirement constraints backing DC Links
  • Fixed an error related to the DPR calculations when there are renewable projects being backed

New features and improvements

OptGen 2

  • Added debug output files to generic investment constraints (opt2_genericlhs.csv, opt2_genericrhs.csv, opt2_genericagents.csv, opt2_genericdbg.csv)

SDDP 18.0.2rc8

📅 Date: 2025-07-29
🔗 Download: Windows | Linux

Operation Planning Module (SDDP)

Fixed issues

  • Adjustment in hydro capacity output (phidsf.csv) to consider piecewise functions involving maximum turbining

SDDP 18.0.2rc7

📅 Date: 2025-07-23
🔗 Download: Windows | Linux

Operation Planning Module (SDDP)

New features and improvements

  • New output: generic linear constraint value

SDDP 18.0.2rc6

📅 Date: 2025-07-17
🔗 Download: Windows | Linux

Operation Planning Module (SDDP)

Fixed issues

  • Fixed a memory invasion issue in coordinated cases

SDDP 18.0.2rc5

📅 Date: 2025-07-15
🔗 Download: Windows | Linux

Operation Planning Module (SDDP)

Fixed issues

  • Added missing dependencies to Linux setup
  • Fixed energy efficiency OptGen cuts when defined in per-unit (pu)
  • Fixed generic constraints and thermal emissions consideration in coordinated policy execution

Graphical user interface

Fixed issues

  • Fixed registration of multi-fuel thermal plants
  • Fixed database conversion when battery modification file contains non-existent elements

SDDP 18.0.2rc4

📅 Date: 2025-07-14
🔗 Download: Windows | Linux

Operation Planning Module (SDDP)

Fixed issues

  • Fixed coordinated execution with network representation

Graphical user interface

Fixed issues

  • Changed column type for thermal plant maximum generation to enable proper filtering

SDDP 18.0.2rc3

📅 Date: 2025-07-12
🔗 Download: Windows | Linux

Graphical user interface

New features and improvements

  • Reduced minimum installation requirements to Windows 8.1 and Windows Server 2012 R2. For versions below Windows 10 and Windows Server 2016, it will be necessary update the WebView2 component during SDDP’s installation

SDDP 18.0.2rc2

📅 Date: 2025-07-11
🔗 Download: Windows | Linux

Operation Planning Module (SDDP)

Fixed issues

  • Fixed the consideration of fuel prices varying per scenario

SDDP 18.0.2rc1

📅 Date: 2025-07-09
🔗 Download: Windows | Linux

Expansion Planning Module (OptGen)

Fixed issues

  • Fixed an error related to demand-based requirement constraints

SDDP 18.0.1

📅 Date: 2025-07-03
🔗 Download: Windows | Linux

Official release