NREL/EnergyPlus
Aug 2025 – Dec 2025
3 Months active
Languages Used
C++YAMLPython
Technical Skills
C++C++ developmentCI/CDCode RefactoringGitHub ActionsPython scripting
Gary Marks
PROFILE
Gary Marks
Worked on the NREL/EnergyPlus repository, delivering features and fixes that improved reliability, maintainability, and developer experience. Focused on C++ and Python, this developer enhanced chiller module accuracy by refining negative value handling and expanding unit test coverage. They strengthened error reporting and CSV parsing robustness, ensuring cross-platform compatibility and clearer diagnostics. Their work included refactoring test suites for readability and stability, introducing YAML-based CI/CD configurations, and streamlining issue reporting. By implementing configurable schedule file extension handling and addressing file processing warnings, they reduced user friction and enabled faster iteration on schedule-related features, contributing to a more robust energy modeling platform.
Overall Statistics
Feature vs Bugs
63%Features
Repository Contributions
18Total
Bugs
3
Commits
18
Features
5
Lines of code
36,262,122
Activity Months3
Your Network
39 peopleSame Organization
@bigladdersoftware.com2
Shared Repositories
37
Alex SwindlerMember
Alex SwindlerMember
Amir RothMember
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Amir RothMember
Amir RothMember
Bereket NigusseMember
brianlballMember
Dominik WójtMember
Work History
December 2025
3 Commits • 2 Features
Dec 1, 2025December 2025 monthly summary for NREL/EnergyPlus focused on robustness, test stability, and developer experience. Delivered configurable handling for unknown schedule file extensions, introduced YAML-based CI/CD configurations and issue reporting templates to streamline development and user interaction. Refactored Schedule:File test suite to improve readability and stability, and fixed a CSV extension recognition warning in ScheduleManager to ensure correct processing of CSV schedules. These changes reduce user friction, improve build reliability, and enable faster iteration on schedule-related features.
3 Commits • 2 Features
Dec 1, 2025December 2025 monthly summary for NREL/EnergyPlus focused on robustness, test stability, and developer experience. Delivered configurable handling for unknown schedule file extensions, introduced YAML-based CI/CD configurations and issue reporting templates to streamline development and user interaction. Refactored Schedule:File test suite to improve readability and stability, and fixed a CSV extension recognition warning in ScheduleManager to ensure correct processing of CSV schedules. These changes reduce user friction, improve build reliability, and enable faster iteration on schedule-related features.
December 2025
September 2025
4 Commits • 1 Features
Sep 1, 2025Sep 2025: Delivered two high-impact improvements in the NREL/EnergyPlus data pipeline focused on reliability, diagnostics, and maintainability.
September 2025
4 Commits • 1 Features
Sep 1, 2025Sep 2025: Delivered two high-impact improvements in the NREL/EnergyPlus data pipeline focused on reliability, diagnostics, and maintainability.
August 2025
11 Commits • 2 Features
Aug 1, 2025August 2025 — EnergyPlus chiller module improvements focused on reliability, test coverage, and maintainability. Delivered a critical bug fix for negative value handling, expanded unit test coverage, and performed comprehensive code cleanup across chiller tests and models. These efforts improve energy modeling accuracy, reduce risk of silent failures, and raise overall software quality for energy simulations.
11 Commits • 2 Features
Aug 1, 2025August 2025 — EnergyPlus chiller module improvements focused on reliability, test coverage, and maintainability. Delivered a critical bug fix for negative value handling, expanded unit test coverage, and performed comprehensive code cleanup across chiller tests and models. These efforts improve energy modeling accuracy, reduce risk of silent failures, and raise overall software quality for energy simulations.
August 2025
Activity
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Quality Metrics
Correctness93.4%
Maintainability90.0%
Architecture87.8%
Performance90.0%
AI Usage21.2%
Skills & Technologies
Programming Languages
C++PythonYAML
Technical Skills
C++C++ developmentCI/CDCode DocumentationCode RefactoringError HandlingFile ParsingGitHub ActionsPython DevelopmentPython scriptingSoftware DevelopmentUnit TestingYAML Configurationcode refactoringdata formatting
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline