NREL/openstudio-standards
Feb 2025 – Jun 2025
3 Months active
Languages Used
RubyXML
Technical Skills
Data ManagementData UpdateEnergy ModelingBuilding Performance AnalysisSoftware Development
Xuechen (Jerry) Lei
PROFILE
Xuechen (jerry) Lei
Over a three-month period, this developer enhanced the NREL/openstudio-standards repository by delivering four targeted data-driven features focused on energy modeling accuracy and standards compliance. Their work included updating external lighting and heat pump datasets, refining CRAC unit parameters, and curating comprehensive standards datasets. Using Ruby and XML, they emphasized data management, validation, and traceability, ensuring each change was clearly linked to source commits for reproducibility. The technical approach prioritized data integrity and scenario fidelity, reducing inconsistencies in simulation outputs. By integrating rigorous data engineering practices, they improved the reliability of building performance analysis and streamlined ongoing standards development workflows.
Overall Statistics
Feature vs Bugs
100%Features
Repository Contributions
4Total
Bugs
0
Commits
4
Features
4
Lines of code
28,013
Activity Months3
Your Network
43 peopleSame Organization
@pnnl.gov23
Work History
June 2025
1 Commits • 1 Features
Jun 1, 2025June 2025 — Delivered OpenStudio Standards Dataset Update for NREL/openstudio-standards. Updated and validated datasets with new/modified data, anchored to commit b8458b8 (applied in 640a36d603c165cb5340cfc1a4466f807f991a20). Impact: more accurate energy simulations and improved standards compliance; lays groundwork for ongoing data quality improvements. No major bugs fixed this month; focus was on data curation, traceability, and integration. Business value: reliable inputs reduce modeling errors, accelerate standard updates, and improve decision-making. Technologies/skills demonstrated: data engineering, data validation, Git-based change traceability, cross-repo collaboration.
1 Commits • 1 Features
Jun 1, 2025June 2025 — Delivered OpenStudio Standards Dataset Update for NREL/openstudio-standards. Updated and validated datasets with new/modified data, anchored to commit b8458b8 (applied in 640a36d603c165cb5340cfc1a4466f807f991a20). Impact: more accurate energy simulations and improved standards compliance; lays groundwork for ongoing data quality improvements. No major bugs fixed this month; focus was on data curation, traceability, and integration. Business value: reliable inputs reduce modeling errors, accelerate standard updates, and improve decision-making. Technologies/skills demonstrated: data engineering, data validation, Git-based change traceability, cross-repo collaboration.
June 2025
April 2025
1 Commits • 1 Features
Apr 1, 2025April 2025 monthly summary for NREL/openstudio-standards: Delivered the CRAC Data Parameter Refinement for Energy Modeling. Refined CRAC unit parameters and data processing to improve accuracy in energy modeling and reporting for facilities with CRAC-equipped systems. Implemented via data_update (crac_only) changes (commit 5f4dd177201a165ad194550d22be1416d9a25f94; message: e89e6c4).
April 2025
1 Commits • 1 Features
Apr 1, 2025April 2025 monthly summary for NREL/openstudio-standards: Delivered the CRAC Data Parameter Refinement for Energy Modeling. Refined CRAC unit parameters and data processing to improve accuracy in energy modeling and reporting for facilities with CRAC-equipped systems. Implemented via data_update (crac_only) changes (commit 5f4dd177201a165ad194550d22be1416d9a25f94; message: e89e6c4).
February 2025
2 Commits • 2 Features
Feb 1, 2025February 2025 — NREL/openstudio-standards: Focused data updates to strengthen energy model inputs and scenario fidelity, with clear traceability to commits.
2 Commits • 2 Features
Feb 1, 2025February 2025 — NREL/openstudio-standards: Focused data updates to strengthen energy model inputs and scenario fidelity, with clear traceability to commits.
February 2025
Activity
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Quality Metrics
Correctness80.0%
Maintainability80.0%
Architecture70.0%
Performance70.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
RubyXML
Technical Skills
Building Performance AnalysisData ManagementData UpdateEnergy ModelingSoftware Development
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