powsybl/powsybl-core
Aug 2025 – Jun 2026
8 Months active
Languages Used
JavaXMLSPARQLSQLJSONMarkdown
Technical Skills
Backend DevelopmentData ConversionSystem IntegrationCGMESCode Quality ImprovementConfiguration Management
marqueslanauja
PROFILE
Marqueslanauja
Over eight months, this developer enhanced the powsybl-core repository by delivering twelve features and resolving four bugs focused on power systems modeling and data exchange. Their work included expanding CGMES and PowerFactory import/export pipelines, improving transformer control logic, and enabling geolocation data integration. They applied Java, XML, and SQL to refactor data handling, implement robust error management, and increase test coverage for scenarios like multi-area substations and disconnected network components. Emphasizing configuration-driven design and maintainability, they improved interoperability with external tools and ensured data integrity across complex grid models, supporting reliable planning and analysis for power system operators and engineers.
Overall Statistics
Feature vs Bugs
75%Features
Repository Contributions
34Total
Bugs
4
Commits
34
Features
12
Lines of code
2,563,539
Activity Months8
Your Network
45 peopleSame Organization
@aia.es1
Work History
June 2026
3 Commits • 3 Features
Jun 1, 2026June 2026 recap for powsybl-core: delivering targeted features that improve modeling fidelity, interoperability, and data quality. Key outcomes include transformer control logic enhancements for two-winding and three-winding transformers in PowerFactory, expanding Matpower export to include DC lines and better handling of disconnected components, and adding geolocation data import (GPS coordinates) for substations and lines in the PowerFactory converter. These changes reduce export failures, enable more accurate planning and analysis, and enhance asset geolocation for network models. Demonstrated business value through improved operation realism, robust data exports, and geospatial accuracy, backed by focused testing and documentation updates.
3 Commits • 3 Features
Jun 1, 2026June 2026 recap for powsybl-core: delivering targeted features that improve modeling fidelity, interoperability, and data quality. Key outcomes include transformer control logic enhancements for two-winding and three-winding transformers in PowerFactory, expanding Matpower export to include DC lines and better handling of disconnected components, and adding geolocation data import (GPS coordinates) for substations and lines in the PowerFactory converter. These changes reduce export failures, enable more accurate planning and analysis, and enhance asset geolocation for network models. Demonstrated business value through improved operation realism, robust data exports, and geospatial accuracy, backed by focused testing and documentation updates.
June 2026
May 2026
2 Commits • 2 Features
May 1, 2026May 2026 monthly summary for powsybl-core focusing on delivering business value and technical achievements through robust import enhancements and data integrity improvements. Implemented configurable ElmTerms handling during import and introduced DataObjectRefKey-based linking, with comprehensive test coverage and clear traceability across PowerFactory integrations.
May 2026
2 Commits • 2 Features
May 1, 2026May 2026 monthly summary for powsybl-core focusing on delivering business value and technical achievements through robust import enhancements and data integrity improvements. Implemented configurable ElmTerms handling during import and introduced DataObjectRefKey-based linking, with comprehensive test coverage and clear traceability across PowerFactory integrations.
April 2026
3 Commits • 1 Features
Apr 1, 2026April 2026 monthly summary for powsybl-core focused on expanding the Powerfactory converter capabilities, enhancing robustness, and delivering measurable business value through broader data type support and more reliable data processing.
3 Commits • 1 Features
Apr 1, 2026April 2026 monthly summary for powsybl-core focused on expanding the Powerfactory converter capabilities, enhancing robustness, and delivering measurable business value through broader data type support and more reliable data processing.
April 2026
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.
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.
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.
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
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.
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.
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.
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
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.
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.
Activity
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Quality Metrics
Correctness89.2%
Maintainability82.4%
Architecture84.2%
Performance78.8%
AI Usage26.4%
Skills & Technologies
Programming Languages
JSONJavaMarkdownSPARQLSQLXML
Technical Skills
API integrationBackend DevelopmentCGMESCode Quality ImprovementConfiguration ManagementData ConversionData ExportData ModelingData ProcessingDatabase ManagementDocumentationElectrical EngineeringError HandlingFull Stack DevelopmentJava
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