NREL/EnergyPlus
Dec 2024 – Jun 2026
15 Months active
Languages Used
C++PythonTeXIDFYAMLBash
Technical Skills
Code Formattingclang-formatC++ DevelopmentC++Clang FormatRefactoring
Dareum Nam
PROFILE
Dareum Nam
Over 15 months, contributed to the NREL/EnergyPlus repository by delivering features and fixes that improved code quality, simulation accuracy, and maintainability. Focused on C++ and Python development, the work included extensive code refactoring, formatting standardization with clang-format, and enhancements to CI/CD workflows using YAML and GitHub Actions. Addressed simulation and HVAC modeling bugs, optimized algorithms, and improved documentation clarity. Efforts included refining error handling, reducing technical debt, and implementing static analysis tooling. These changes streamlined onboarding, reduced regression risk, and established consistent coding standards, resulting in a more reliable, maintainable, and scalable codebase for ongoing development.
Overall Statistics
Feature vs Bugs
52%Features
Repository Contributions
75Total
Bugs
13
Commits
75
Features
14
Lines of code
35,998,857
Activity Months15
Your Network
39 peopleShared Repositories
39
Alex SwindlerMember
Alex SwindlerMember
Amir RothMember
Amir RothMember
Amir RothMember
Amir RothMember
Bereket NigusseMember
brianlballMember
Dominik WójtMember
Work History
June 2026
2 Commits • 1 Features
Jun 1, 2026June 2026 – NREL/EnergyPlus: Delivered workflow standardization and targeted docs improvement, with measurable gains in maintainability and onboarding efficiency.
2 Commits • 1 Features
Jun 1, 2026June 2026 – NREL/EnergyPlus: Delivered workflow standardization and targeted docs improvement, with measurable gains in maintainability and onboarding efficiency.
June 2026
May 2026
16 Commits • 1 Features
May 1, 2026May 2026 — NREL/EnergyPlus: Successful delivery of code quality improvements and stability hardening. Two feature streams were completed: (1) code quality, safety, and refactoring across EnergyPlus, including scope fixes, const-correctness, directory handling improvements, and dead code removal, and (2) targeted bug fixes and initialization/logic hardening to improve stability. Implemented via 12 commits focused on quality/refactoring and 5 commits on bug fixes, delivering a safer, more maintainable codebase and reduced regression risk for future releases.
May 2026
16 Commits • 1 Features
May 1, 2026May 2026 — NREL/EnergyPlus: Successful delivery of code quality improvements and stability hardening. Two feature streams were completed: (1) code quality, safety, and refactoring across EnergyPlus, including scope fixes, const-correctness, directory handling improvements, and dead code removal, and (2) targeted bug fixes and initialization/logic hardening to improve stability. Implemented via 12 commits focused on quality/refactoring and 5 commits on bug fixes, delivering a safer, more maintainable codebase and reduced regression risk for future releases.
April 2026
9 Commits • 2 Features
Apr 1, 2026April 2026 contributions to NREL/EnergyPlus delivered substantial improvements in model accuracy, reliability, and developer productivity through targeted bug fixes, logic refinements, and CI/CD enhancements. The work focused on cross-zone connectivity, heating/cooling sizing logic, and core data handling with safety-oriented code quality improvements and streamlined CI workflows. Together, these changes reduce simulation risk, speed iteration, and improve maintainability across the EnergyPlus codebase.
9 Commits • 2 Features
Apr 1, 2026April 2026 contributions to NREL/EnergyPlus delivered substantial improvements in model accuracy, reliability, and developer productivity through targeted bug fixes, logic refinements, and CI/CD enhancements. The work focused on cross-zone connectivity, heating/cooling sizing logic, and core data handling with safety-oriented code quality improvements and streamlined CI workflows. Together, these changes reduce simulation risk, speed iteration, and improve maintainability across the EnergyPlus codebase.
April 2026
March 2026
2 Commits
Mar 1, 2026March 2026 Monthly Summary (NREL/EnergyPlus): Delivered core stability and correctness improvements through targeted bug fixes, reinforcing reliability for HVAC simulations and downstream feature work. Key fixes include removing redundant assignments to resolve build errors and correcting condenser-type handling in VariableSpeedCoils to ensure proper assignment when the condenser type is empty.
March 2026
2 Commits
Mar 1, 2026March 2026 Monthly Summary (NREL/EnergyPlus): Delivered core stability and correctness improvements through targeted bug fixes, reinforcing reliability for HVAC simulations and downstream feature work. Key fixes include removing redundant assignments to resolve build errors and correcting condenser-type handling in VariableSpeedCoils to ensure proper assignment when the condenser type is empty.
February 2026
5 Commits • 1 Features
Feb 1, 2026February 2026 performance focused on stabilizing build/test processes and tightening code quality in EnergyPlus (NREL). Delivered standardized CI/CD workflows and issue reporting templates, including a C++ problem matcher to simplify triage and improve automation. Implemented targeted stability and quality improvements across HVAC and EnergyPlus simulation components, reducing redundant code paths, enhancing error handling, and refining flow control in HVAC modules, duct loss calculations, and psychrometrics. These changes enhance reliability of simulations, accelerate debugging, and establish a foundation for faster future enhancements.
5 Commits • 1 Features
Feb 1, 2026February 2026 performance focused on stabilizing build/test processes and tightening code quality in EnergyPlus (NREL). Delivered standardized CI/CD workflows and issue reporting templates, including a C++ problem matcher to simplify triage and improve automation. Implemented targeted stability and quality improvements across HVAC and EnergyPlus simulation components, reducing redundant code paths, enhancing error handling, and refining flow control in HVAC modules, duct loss calculations, and psychrometrics. These changes enhance reliability of simulations, accelerate debugging, and establish a foundation for faster future enhancements.
February 2026
January 2026
7 Commits • 1 Features
Jan 1, 2026January 2026: Reliability and maintainability enhancements in NREL/EnergyPlus. Delivered consolidated fixes for variable scope and shadow-variable handling, and implemented code quality improvements for SZVAVModel. All changes were CI-verified and set a stronger baseline for future enhancements.
January 2026
7 Commits • 1 Features
Jan 1, 2026January 2026: Reliability and maintainability enhancements in NREL/EnergyPlus. Delivered consolidated fixes for variable scope and shadow-variable handling, and implemented code quality improvements for SZVAVModel. All changes were CI-verified and set a stronger baseline for future enhancements.
December 2025
11 Commits • 1 Features
Dec 1, 2025Concise monthly summary for NREL/EnergyPlus focusing on key features delivered, major bugs fixed, impact, and technical achievements for 2025-12.
11 Commits • 1 Features
Dec 1, 2025Concise monthly summary for NREL/EnergyPlus focusing on key features delivered, major bugs fixed, impact, and technical achievements for 2025-12.
December 2025
November 2025
5 Commits • 1 Features
Nov 1, 2025November 2025 performance summary for NREL/EnergyPlus: Delivered targeted code quality improvements and refactoring to reduce maintenance burden and regression risk, and fixed a critical energy simulation bug to ensure accurate results. These efforts improve reliability, predictability, and scalability of energy simulations while showcasing strong code hygiene and debugging practices.
November 2025
5 Commits • 1 Features
Nov 1, 2025November 2025 performance summary for NREL/EnergyPlus: Delivered targeted code quality improvements and refactoring to reduce maintenance burden and regression risk, and fixed a critical energy simulation bug to ensure accurate results. These efforts improve reliability, predictability, and scalability of energy simulations while showcasing strong code hygiene and debugging practices.
October 2025
1 Commits • 1 Features
Oct 1, 2025October 2025: Focused code readability improvement in the NREL/EnergyPlus repository. Applied clang-format to AirLoopHVACDOAS.cc to reformat a specific error message output, resulting in clearer logs and easier maintenance without changing any functionality. The change is isolated and aligns with ongoing maintainability initiatives, with potential for broader formatting passes in the future. Commit: d4169f1d87f675b3199ec6b260b9f850c72054db (message: 'clang format').
1 Commits • 1 Features
Oct 1, 2025October 2025: Focused code readability improvement in the NREL/EnergyPlus repository. Applied clang-format to AirLoopHVACDOAS.cc to reformat a specific error message output, resulting in clearer logs and easier maintenance without changing any functionality. The change is isolated and aligns with ongoing maintainability initiatives, with potential for broader formatting passes in the future. Commit: d4169f1d87f675b3199ec6b260b9f850c72054db (message: 'clang format').
October 2025
September 2025
2 Commits • 1 Features
Sep 1, 2025In 2025-09 for NREL/EnergyPlus, delivered targeted enhancements and code quality improvements that advance model accuracy for ice storage operation and improve maintainability of the codebase. Key outcomes include refining the Ice Storage System Operation Schedule for the 5ZoneIceStorage_autosized.idf, updating ScheduleTypeLimits for On/Off, and adding TES Only off-peak setpoints to improve simulation accuracy under different energy pricing periods. A parallel, no-functional-change clang-format cleanup was applied to align the codebase with the latest style guidelines, enhancing readability and long-term maintainability without altering heat pump logic.
September 2025
2 Commits • 1 Features
Sep 1, 2025In 2025-09 for NREL/EnergyPlus, delivered targeted enhancements and code quality improvements that advance model accuracy for ice storage operation and improve maintainability of the codebase. Key outcomes include refining the Ice Storage System Operation Schedule for the 5ZoneIceStorage_autosized.idf, updating ScheduleTypeLimits for On/Off, and adding TES Only off-peak setpoints to improve simulation accuracy under different energy pricing periods. A parallel, no-functional-change clang-format cleanup was applied to align the codebase with the latest style guidelines, enhancing readability and long-term maintainability without altering heat pump logic.
June 2025
1 Commits
Jun 1, 2025June 2025: Documentation quality improvements in the EnergyPlus repository (NREL/EnergyPlus). The primary deliverable was a typo fix in a section header and refined wording across two paragraphs to better reflect the underlying code concepts. The changes were committed as part of an ongoing effort to improve documentation accuracy and maintainability, supporting clearer onboarding and reduced support overhead.
1 Commits
Jun 1, 2025June 2025: Documentation quality improvements in the EnergyPlus repository (NREL/EnergyPlus). The primary deliverable was a typo fix in a section header and refined wording across two paragraphs to better reflect the underlying code concepts. The changes were committed as part of an ongoing effort to improve documentation accuracy and maintainability, supporting clearer onboarding and reduced support overhead.
June 2025
May 2025
6 Commits • 1 Features
May 1, 2025Summary for 2025-05 (NREL/EnergyPlus): - Key features delivered: - Code quality and licensing consistency updates: Applied clang-format across EnergyPlus modules and unit tests for consistent style; corrected license text capitalization from Energyplus to EnergyPlus to align branding and licensing metadata. - Enum validation tooling false positive reduction: Refined enum validation tooling to reduce false positives by introducing targeted exceptions for specific enums (EconomicTariff.hh:StepType and LowTempRadiantSystem.hh:OpMode) and enhanced handling within related scope checks for DataGenerators.hh:WaterTempMode and RefrigeratedCase.hh:CriticalType. - Major bugs fixed: - Reduced spurious enum validation alerts by adding precise exceptions and scope handling, improving reliability of static checks in CI and local builds. - Overall impact and accomplishments: - Improved code quality, readability, and licensing compliance, leading to cleaner diffs, easier code reviews, and more reliable build health signals. - Time savings in CI and development cycles due to fewer false positives and consistent coding standards. - Technologies/skills demonstrated: - clang-format automation and enforcement - Licensing metadata hygiene and branding consistency - Static analysis tooling refinement and maintainability improvements - C++ codebase maintenance, change-tracking through commits, and cross-module consistency
May 2025
6 Commits • 1 Features
May 1, 2025Summary for 2025-05 (NREL/EnergyPlus): - Key features delivered: - Code quality and licensing consistency updates: Applied clang-format across EnergyPlus modules and unit tests for consistent style; corrected license text capitalization from Energyplus to EnergyPlus to align branding and licensing metadata. - Enum validation tooling false positive reduction: Refined enum validation tooling to reduce false positives by introducing targeted exceptions for specific enums (EconomicTariff.hh:StepType and LowTempRadiantSystem.hh:OpMode) and enhanced handling within related scope checks for DataGenerators.hh:WaterTempMode and RefrigeratedCase.hh:CriticalType. - Major bugs fixed: - Reduced spurious enum validation alerts by adding precise exceptions and scope handling, improving reliability of static checks in CI and local builds. - Overall impact and accomplishments: - Improved code quality, readability, and licensing compliance, leading to cleaner diffs, easier code reviews, and more reliable build health signals. - Time savings in CI and development cycles due to fewer false positives and consistent coding standards. - Technologies/skills demonstrated: - clang-format automation and enforcement - Licensing metadata hygiene and branding consistency - Static analysis tooling refinement and maintainability improvements - C++ codebase maintenance, change-tracking through commits, and cross-module consistency
April 2025
6 Commits • 1 Features
Apr 1, 2025April 2025: Focused on code quality and consistency for NREL/EnergyPlus. Delivered comprehensive code formatting cleanups and style standardization by applying clang-format v10 across the codebase. This work improves readability, maintainability, and reduces style-related diffs in future reviews. The initiative establishes a consistent baseline for ongoing development and eases onboarding of new contributors.
6 Commits • 1 Features
Apr 1, 2025April 2025: Focused on code quality and consistency for NREL/EnergyPlus. Delivered comprehensive code formatting cleanups and style standardization by applying clang-format v10 across the codebase. This work improves readability, maintainability, and reduces style-related diffs in future reviews. The initiative establishes a consistent baseline for ongoing development and eases onboarding of new contributors.
April 2025
January 2025
1 Commits • 1 Features
Jan 1, 2025January 2025 monthly summary focused on improving code quality and consistency in the EnergyPlus repository. Delivered a comprehensive code formatting cleanup aligning the codebase with clang-format 10.0, with no functional changes. The effort reduces technical debt, improves readability, and sets the stage for safer refactors and easier onboarding for new contributors.
January 2025
1 Commits • 1 Features
Jan 1, 2025January 2025 monthly summary focused on improving code quality and consistency in the EnergyPlus repository. Delivered a comprehensive code formatting cleanup aligning the codebase with clang-format 10.0, with no functional changes. The effort reduces technical debt, improves readability, and sets the stage for safer refactors and easier onboarding for new contributors.
December 2024
1 Commits • 1 Features
Dec 1, 2024December 2024 monthly summary for NREL/EnergyPlus focused on reinforcing code quality and maintainability through formatting discipline. Delivered clang-format compliant code across multiple files with no functional changes, ensuring consistency and readability for easier future maintenance and smoother collaboration.
1 Commits • 1 Features
Dec 1, 2024December 2024 monthly summary for NREL/EnergyPlus focused on reinforcing code quality and maintainability through formatting discipline. Delivered clang-format compliant code across multiple files with no functional changes, ensuring consistency and readability for easier future maintenance and smoother collaboration.
December 2024
Activity
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Quality Metrics
Correctness93.8%
Maintainability93.8%
Architecture92.2%
Performance92.8%
AI Usage21.8%
Skills & Technologies
Programming Languages
BashC++IDFPythonTeXYAML
Technical Skills
API developmentAlgorithm OptimizationBashC++C++ DevelopmentC++ developmentC++ programmingCI/CDCMakeClang FormatCode AnalysisCode FormattingCode MaintenanceCode OptimizationCode Refactoring
Repositories Contributed To
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