powsybl/powsybl-core
Aug 2025 – Mar 2026
5 Months active
Languages Used
JavaXMLSPARQLSQLJSON
Technical Skills
Backend DevelopmentData ConversionSystem IntegrationCGMESCode Quality ImprovementConfiguration Management
marqueslanauja
PROFILE
Marqueslanauja
Over five months, Marques Ja worked on the powsybl-core repository, delivering features and fixes that improved power system data modeling and exchange. He enhanced CGMES import and export pipelines, separating EQ and SSH data for all equipment types to increase model fidelity and robustness. Using Java, XML, and SPARQL, Marques refactored backend logic to support complex scenarios like substations spanning multiple control areas and multi-island network exports. His work included configuration-driven error handling, expanded unit testing, and documentation updates, resulting in more reliable integration with external tools and better support for grid operators’ planning and operational decision-making needs.
Overall Statistics
Feature vs Bugs
67%Features
Repository Contributions
26Total
Bugs
3
Commits
26
Features
6
Lines of code
16,705
Activity Months5
Your Network
39 peopleSame Organization
@aia.es1
Work History
March 2026
3 Commits • 1 Features
Mar 1, 2026March 2026 focused on reliability and accuracy in powsybl-core data exchange and voltage control for CGMES. Delivered targeted improvements to export pipelines (PSSE and CGMES) and enhanced voltage-regulating control for busbar sections, significantly improving data integrity across multi-island configurations and complex network cases. The work strengthens grid modeling capabilities and accelerates integration with external tools used in planning and operations.
3 Commits • 1 Features
Mar 1, 2026March 2026 focused on reliability and accuracy in powsybl-core data exchange and voltage control for CGMES. Delivered targeted improvements to export pipelines (PSSE and CGMES) and enhanced voltage-regulating control for busbar sections, significantly improving data integrity across multi-island configurations and complex network cases. The work strengthens grid modeling capabilities and accelerates integration with external tools used in planning and operations.
March 2026
February 2026
2 Commits • 1 Features
Feb 1, 2026February 2026 monthly summary for powsybl-core: Focused on CGMES data exchange reliability and test coverage. Delivered a robust export fix for IIDM models lacking properties or aliases and expanded CGMES update testing with new use cases and documentation, reinforcing business value by reducing export failures and improving maintainability.
February 2026
2 Commits • 1 Features
Feb 1, 2026February 2026 monthly summary for powsybl-core: Focused on CGMES data exchange reliability and test coverage. Delivered a robust export fix for IIDM models lacking properties or aliases and expanded CGMES update testing with new use cases and documentation, reinforcing business value by reducing export failures and improving maintainability.
November 2025
4 Commits • 2 Features
Nov 1, 2025November 2025 (2025-11) monthly summary for powsybl-core: Delivered key enhancements and a critical bug fix, with a focus on data integrity, configurability, and testing coverage. The work supports more robust import/export flows and reduces risk in asset data management.
4 Commits • 2 Features
Nov 1, 2025November 2025 (2025-11) monthly summary for powsybl-core: Delivered key enhancements and a critical bug fix, with a focus on data integrity, configurability, and testing coverage. The work supports more robust import/export flows and reduces risk in asset data management.
November 2025
September 2025
16 Commits • 1 Features
Sep 1, 2025Monthly performance summary for 2025-09: Delivered a major enhancement to CGMES import by separating Equipment (EQ) and SSH data across all equipment types, significantly improving data accuracy, robustness, and extensibility of the full power-system model. This refactor covers loads, transformers, generators, SVCs, shunt components, HVDC lines, Lines, Switches, TieLines, VoltageLevels, Grounds, SvInjections, ControlAreas, BusbarSections, and more. The change reduces update inconsistencies and enables reliable representations of complex CGMES scenarios. The work emphasized long-term maintainability, better error handling, and configuration-driven fallback when data is missing.
September 2025
16 Commits • 1 Features
Sep 1, 2025Monthly performance summary for 2025-09: Delivered a major enhancement to CGMES import by separating Equipment (EQ) and SSH data across all equipment types, significantly improving data accuracy, robustness, and extensibility of the full power-system model. This refactor covers loads, transformers, generators, SVCs, shunt components, HVDC lines, Lines, Switches, TieLines, VoltageLevels, Grounds, SvInjections, ControlAreas, BusbarSections, and more. The change reduces update inconsistencies and enables reliable representations of complex CGMES scenarios. The work emphasized long-term maintainability, better error handling, and configuration-driven fallback when data is missing.
August 2025
1 Commits • 1 Features
Aug 1, 2025August 2025: Delivered Substation Bus Mapping Across Control Areas in powsybl-core. Modified ContainersMapping to include control_area in voltage level identification, enabling correct mapping for substations with buses at the same nominal voltage across different control areas. Added a dedicated test to validate the cross-area scenario. This work improves PSSE interoperability, data integrity, and end-to-end grid modeling accuracy.
1 Commits • 1 Features
Aug 1, 2025August 2025: Delivered Substation Bus Mapping Across Control Areas in powsybl-core. Modified ContainersMapping to include control_area in voltage level identification, enabling correct mapping for substations with buses at the same nominal voltage across different control areas. Added a dedicated test to validate the cross-area scenario. This work improves PSSE interoperability, data integrity, and end-to-end grid modeling accuracy.
August 2025
Activity
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Quality Metrics
Correctness89.6%
Maintainability83.2%
Architecture84.6%
Performance78.6%
AI Usage23.0%
Skills & Technologies
Programming Languages
JSONJavaSPARQLSQLXML
Technical Skills
Backend DevelopmentCGMESCode Quality ImprovementConfiguration ManagementData ConversionData ExportData ModelingFull Stack DevelopmentJavaNetwork ModelingPower SystemsPower Systems SimulationRefactoringSPARQLSoftware Development
Repositories Contributed To
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