NREL/EnergyPlus
Dec 2024 – Apr 2025
4 Months active
Languages Used
C++
Technical Skills
C++Code MaintenanceCode RefactoringEnergy ModelingSoftware DevelopmentSoftware Refactoring
Amir Roth
PROFILE
Amir Roth
Amir Roth contributed to the NREL/EnergyPlus repository by delivering foundational refactors and new features that improved simulation accuracy, code maintainability, and build performance. He modernized fluid and refrigerant property handling through centralized API design in C++, overhauled curve management for robust data access, and introduced new components such as ICEngineGenerator and FuelCell. His work included refactoring input processing, enhancing error handling, and standardizing enum usage for tariff and electrical input validation. By focusing on code organization, object-oriented programming, and unit testing, Amir enabled safer migrations, faster iteration, and more reliable energy modeling workflows across complex HVAC and energy systems.
Overall Statistics
Feature vs Bugs
79%Features
Repository Contributions
56Total
Bugs
3
Commits
56
Features
11
Lines of code
35,076
Activity Months4
Your Network
31 people
Work History
April 2025
20 Commits • 5 Features
Apr 1, 2025April 2025 (2025-04) – NREL/EnergyPlus: Delivered a focused set of foundation-level refactors, new components, and reliability improvements that raised build performance, input robustness, and module extensibility. The work enables faster iteration, safer migrations, and broader component support while stabilizing CI and data processing pipelines.
20 Commits • 5 Features
Apr 1, 2025April 2025 (2025-04) – NREL/EnergyPlus: Delivered a focused set of foundation-level refactors, new components, and reliability improvements that raised build performance, input robustness, and module extensibility. The work enables faster iteration, safer migrations, and broader component support while stabilizing CI and data processing pipelines.
April 2025
March 2025
18 Commits • 3 Features
Mar 1, 2025In March 2025, delivered significant architectural and reliability improvements for NREL/EnergyPlus. Implemented a centralized curve management overhaul, introduced PlantLocation for centralized plant loop data, and integrated the ICEngineGenerator model, while fixing critical bugs in schedule handling and DX coil tests. These changes enhance model accuracy, reduce maintenance burden, and improve error reporting and test reliability, enabling faster CI feedback and more robust energy simulations.
March 2025
18 Commits • 3 Features
Mar 1, 2025In March 2025, delivered significant architectural and reliability improvements for NREL/EnergyPlus. Implemented a centralized curve management overhaul, introduced PlantLocation for centralized plant loop data, and integrated the ICEngineGenerator model, while fixing critical bugs in schedule handling and DX coil tests. These changes enhance model accuracy, reduce maintenance burden, and improve error reporting and test reliability, enabling faster CI feedback and more robust energy simulations.
January 2025
16 Commits • 2 Features
Jan 1, 2025January 2025 monthly summary for NREL/EnergyPlus: Delivered systemic modernization of fluid and refrigerant property handling, introducing a centralized API-based approach that enhances maintainability, correctness, and reliability for complex energy systems.
16 Commits • 2 Features
Jan 1, 2025January 2025 monthly summary for NREL/EnergyPlus: Delivered systemic modernization of fluid and refrigerant property handling, introducing a centralized API-based approach that enhances maintainability, correctness, and reliability for complex energy systems.
January 2025
December 2024
2 Commits • 1 Features
Dec 1, 2024December 2024 — NREL/EnergyPlus: Delivered robust optical properties initialization for window constructions across viewing angles and refactored solar shading calculations to improve polynomial handling and namespace qualification. These changes enhance simulation accuracy and stability for daylight and energy performance, reduce edge-case risks, and improve code clarity and maintainability. Implemented via two commits (a7ec0c0a9f20131c3fbe11e7da0ea0efdb36e9c7; 73e9bbcbe1c7ccb8ba3d96ceb86818c66ead93d7) including a merge from develop. No separate bug reports were listed, but the work addresses reliability gaps in optical property initialization and shading logic. Technologies/skills demonstrated: C++ refactoring, numerical polynomial handling, robust initialization patterns, and namespace hygiene.
December 2024
2 Commits • 1 Features
Dec 1, 2024December 2024 — NREL/EnergyPlus: Delivered robust optical properties initialization for window constructions across viewing angles and refactored solar shading calculations to improve polynomial handling and namespace qualification. These changes enhance simulation accuracy and stability for daylight and energy performance, reduce edge-case risks, and improve code clarity and maintainability. Implemented via two commits (a7ec0c0a9f20131c3fbe11e7da0ea0efdb36e9c7; 73e9bbcbe1c7ccb8ba3d96ceb86818c66ead93d7) including a merge from develop. No separate bug reports were listed, but the work addresses reliability gaps in optical property initialization and shading logic. Technologies/skills demonstrated: C++ refactoring, numerical polynomial handling, robust initialization patterns, and namespace hygiene.
Activity
Loading activity data...
Quality Metrics
Correctness89.8%
Maintainability91.8%
Architecture86.8%
Performance77.6%
AI Usage21.8%
Skills & Technologies
Programming Languages
C++
Technical Skills
API DesignAPI IntegrationBug FixingBuild OptimizationC++C++ DevelopmentCode CleanupCode MaintainabilityCode MaintenanceCode MigrationCode ModernizationCode OrganizationCode RefactoringCode ValidationData Parsing
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline