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Felix Schreyer

PROFILE

Felix Schreyer

Over four months, Schreyer enhanced the pik-piam/piamInterfaces and pik-piam/mrremind repositories by developing and refining data pipelines for climate and energy modeling. He improved carbon accounting and emissions mapping, integrating new variables and aligning data structures to support more granular scenario analysis. Using R, YAML, and dplyr, Schreyer engineered robust data ingestion and transformation workflows, addressed mapping inconsistencies, and implemented version control practices to ensure release readiness. His work included code refactoring for maintainability, documentation updates, and configuration management, resulting in higher data fidelity, improved reproducibility, and more reliable outputs for downstream climate policy and energy system analyses.

Overall Statistics

Feature vs Bugs

80%Features

Repository Contributions

39Total
Bugs
2
Commits
39
Features
8
Lines of code
1,906
Activity Months4

Work History

October 2025

12 Commits • 3 Features

Oct 1, 2025

October 2025 monthly summary for pik-piam/mrremind focusing on delivering features, fixing critical data processing issues, and preparing release-ready artifacts. Highlights include accuracy improvements for offshore wind potential in Germany, robust data processing and refactoring of REMIND tooling, and explicit versioning/release readiness activities to support the MRRemind release cycle.

September 2025

11 Commits • 1 Features

Sep 1, 2025

Concise monthly summary focused on delivering business value and technical achievements for 2025-09 (pik-piam/mrremind).

January 2025

9 Commits • 3 Features

Jan 1, 2025

January 2025 performance summary for pik-piam/piamInterfaces: Focused on elevating data fidelity and consistency of carbon accounting mappings across ScenarioMIP and ARIADNE interfaces. Delivered targeted feature work to enhance waste-emissions mapping, introduced renaming rules for CDR and synthetic fuels, and aligned mappings with feedstock variables. Updated and stabilized the PIAM Interfaces library to ensure compatibility and accurate metadata. These efforts improve CO2 accounting accuracy for waste-related processes, enable more reliable scenario analysis, and support regulatory reporting.

November 2024

7 Commits • 1 Features

Nov 1, 2024

November 2024 monthly summary for pik-piam/piamInterfaces focusing on data maturation and release governance. Key features delivered: - ARIADNE mapping enhancements: integrated energy system cost into ARIADNE mapping; aligned electricity generation variables to net generation where available; expanded transport-related mappings with investment, stock, and sales variables to improve data granularity. Major bugs fixed / release work: - Release management: updated version numbers and release metadata for piamInterfaces package variants to reflect new releases, ensuring consistent packaging and deployment pipelines. Overall impact and accomplishments: - Substantial improvement in data fidelity and analytical capability for downstream consumers, enabling more accurate energy and transport scenario analysis. - Streamlined release readiness with clear versioning and metadata, reducing ambiguity for users and downstream systems. Technologies / skills demonstrated: - Data modeling and mapping improvements (ARIADNE), variable semantics alignment (net generation vs generation), and expanded data mappings. - Release engineering and artifact management (semantic versioning, metadata updates). - Code discipline with traceable commits across feature and release activities.

Activity

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Quality Metrics

Correctness92.8%
Maintainability91.8%
Architecture91.2%
Performance85.2%
AI Usage20.0%

Skills & Technologies

Programming Languages

CSVMarkdownRYAML

Technical Skills

Carbon AccountingClimate ModelingClimate Policy AnalysisCode RefactoringConfigurationConfiguration ManagementData AggregationData AnalysisData CleaningData EngineeringData ManagementData MappingData ProcessingData TransformationDocumentation

Repositories Contributed To

2 repos

Overview of all repositories you've contributed to across your timeline

pik-piam/mrremind

Sep 2025 Oct 2025
2 Months active

Languages Used

RMarkdown

Technical Skills

Climate ModelingClimate Policy AnalysisData AggregationData AnalysisData ProcessingData Transformation

pik-piam/piamInterfaces

Nov 2024 Jan 2025
2 Months active

Languages Used

CSVMarkdownRYAML

Technical Skills

ConfigurationConfiguration ManagementData EngineeringData MappingPackage ManagementVersion Control

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