SanPen/GridCal
Apr 2025 – Sep 2025
5 Months active
Languages Used
Python
Technical Skills
Code RefactoringCore PythonData ComparisonData StructuresElectrical EngineeringFile Path Management
Alex Soler
PROFILE
Alex Soler
Over five months, Alex Soler enhanced the SanPen/GridCal repository by developing and refining core features for power systems modeling and analysis. He implemented dynamic substation ring configurations and unified diagram generation, improving both scalability and visualization accuracy. Alex introduced robust numerical comparison methods and deep copy safeguards to strengthen data integrity and reliability. He also delivered backend improvements such as Optimal Power Flow losses calculation, enabling more complete system analysis. Working primarily in Python, with a focus on backend development and configuration management, Alex’s contributions addressed both technical depth and practical usability, resulting in more reliable simulations and streamlined engineering workflows.
Overall Statistics
Feature vs Bugs
69%Features
Repository Contributions
45Total
Bugs
5
Commits
45
Features
11
Lines of code
12,602
Activity Months5
Your Network
23 people
Work History
September 2025
1 Commits • 1 Features
Sep 1, 2025September 2025 Monthly Summary for SanPen/GridCal focused on Substation Ring Configuration work. Delivered a dynamic, scalable Substation Ring Configuration feature by refactoring the substation wizard. The ring configuration now computes bus positions based on the number of lines and transformers, improving layout connectivity, modeling flexibility, and accuracy. This refactor reduces manual configuration, enhances scalability for future ring layouts, and strengthens grid modeling reliability in GridCal.
1 Commits • 1 Features
Sep 1, 2025September 2025 Monthly Summary for SanPen/GridCal focused on Substation Ring Configuration work. Delivered a dynamic, scalable Substation Ring Configuration feature by refactoring the substation wizard. The ring configuration now computes bus positions based on the number of lines and transformers, improving layout connectivity, modeling flexibility, and accuracy. This refactor reduces manual configuration, enhances scalability for future ring layouts, and strengthens grid modeling reliability in GridCal.
September 2025
August 2025
2 Commits • 1 Features
Aug 1, 2025Month 2025-08: Focused on enhancing the fidelity of Optimal Power Flow (OPF) results in SanPen/GridCal. Delivered a losses calculation feature that adds a losses attribute to OPF results and derives losses from the real components of Sf and St, storing the real part of the forward and total power flows to provide a complete view of system losses. This enhancement improves decision support for operators and planners by enabling accurate loss accounting and reporting.
August 2025
2 Commits • 1 Features
Aug 1, 2025Month 2025-08: Focused on enhancing the fidelity of Optimal Power Flow (OPF) results in SanPen/GridCal. Delivered a losses calculation feature that adds a losses attribute to OPF results and derives losses from the real components of Sf and St, storing the real part of the forward and total power flows to provide a complete view of system losses. This enhancement improves decision support for operators and planners by enabling accurate loss accounting and reporting.
July 2025
24 Commits • 6 Features
Jul 1, 2025July 2025 – SanPen/GridCal: Delivered substantial configurability, diagram tooling, and stability improvements that directly enable faster deployments and richer substation modeling. Key features delivered include consolidating Substation Type Configurations across versions v2–v4 and adding initial substations configurations, introducing a unified function to generate substation diagrams from both table and map representations, adding SwitchGraphicType for improved diagram rendering and applying it across configurations, extending the substation maker with additional types to support more configurations, and adding Ring SE configuration support for broader deployment scenarios. Major bug fix this month targeted GUI stability: pf_init cleanup on GUI launch to prevent stray processes. Overall impact: reduced configuration toil, improved accuracy and visualization of substation diagrams, and stronger stability in GUI workflows. Technologies/skills demonstrated: cross-version configuration management, diagram generation and rendering, UI stability improvements, and disciplined multi-commit development across a single repository.
24 Commits • 6 Features
Jul 1, 2025July 2025 – SanPen/GridCal: Delivered substantial configurability, diagram tooling, and stability improvements that directly enable faster deployments and richer substation modeling. Key features delivered include consolidating Substation Type Configurations across versions v2–v4 and adding initial substations configurations, introducing a unified function to generate substation diagrams from both table and map representations, adding SwitchGraphicType for improved diagram rendering and applying it across configurations, extending the substation maker with additional types to support more configurations, and adding Ring SE configuration support for broader deployment scenarios. Major bug fix this month targeted GUI stability: pf_init cleanup on GUI launch to prevent stray processes. Overall impact: reduced configuration toil, improved accuracy and visualization of substation diagrams, and stronger stability in GUI workflows. Technologies/skills demonstrated: cross-version configuration management, diagram generation and rendering, UI stability improvements, and disciplined multi-commit development across a single repository.
July 2025
June 2025
4 Commits
Jun 1, 2025Concise monthly summary for 2025-06 in SanPen/GridCal focusing on business value and technical achievements. Delivered stability and correctness improvements in core visualization workflows, addressing a datatable stability bug and ensuring accurate mapping when creating diagrams from filtered table selections.
June 2025
4 Commits
Jun 1, 2025Concise monthly summary for 2025-06 in SanPen/GridCal focusing on business value and technical achievements. Delivered stability and correctness improvements in core visualization workflows, addressing a datatable stability bug and ensuring accurate mapping when creating diagrams from filtered table selections.
April 2025
14 Commits • 3 Features
Apr 1, 2025April 2025 delivered meaningful reliability and testing improvements for SanPen/GridCal, focusing on accurate modeling, data integrity, and developer productivity. Key fixes corrected susceptance factor handling for overhead line types, ensuring 1e6 factor is applied consistently for positive and zero sequence susceptance, which directly improves electrical parameter accuracy. deepcopy was implemented for ListSet to prevent unintended mutations, and grid.copy() reliability was enhanced with targeted tests ensuring copies are distinct yet functionally equivalent. A robust floating-point comparison workflow (smart_compare) was standardized across EditableDevice, Profile, and MultiCircuit, reducing false mismatch signals under varying devices and profiles. Demo scripts and project structure were updated to reflect the new local layout, including a new demo (demo_code4.py) showcasing GridMergeDialogue and grid comparison. These changes collectively increase modeling fidelity, data integrity, test coverage, and developer productivity, delivering tangible business value through more reliable simulations and faster issue resolution.
14 Commits • 3 Features
Apr 1, 2025April 2025 delivered meaningful reliability and testing improvements for SanPen/GridCal, focusing on accurate modeling, data integrity, and developer productivity. Key fixes corrected susceptance factor handling for overhead line types, ensuring 1e6 factor is applied consistently for positive and zero sequence susceptance, which directly improves electrical parameter accuracy. deepcopy was implemented for ListSet to prevent unintended mutations, and grid.copy() reliability was enhanced with targeted tests ensuring copies are distinct yet functionally equivalent. A robust floating-point comparison workflow (smart_compare) was standardized across EditableDevice, Profile, and MultiCircuit, reducing false mismatch signals under varying devices and profiles. Demo scripts and project structure were updated to reflect the new local layout, including a new demo (demo_code4.py) showcasing GridMergeDialogue and grid comparison. These changes collectively increase modeling fidelity, data integrity, test coverage, and developer productivity, delivering tangible business value through more reliable simulations and faster issue resolution.
April 2025
Activity
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Quality Metrics
Correctness87.2%
Maintainability86.6%
Architecture83.8%
Performance77.4%
AI Usage20.4%
Skills & Technologies
Programming Languages
Python
Technical Skills
API DevelopmentBackend DevelopmentBug FixBug FixingCode RefactoringConfiguration ManagementCore PythonData ComparisonData StructuresElectrical EngineeringElectrical Engineering SimulationElectrical Engineering SoftwareFile Path ManagementGUI DevelopmentGrid Modeling
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