oemof/oemof-solph
Nov 2024 – Apr 2026
16 Months active
Languages Used
PythonYAMLrstRSTINITOMLRstCSV
Technical Skills
Build ConfigurationCode RefactoringDocumentationExample ScriptingTestingVersion Control
Patrik Schönfeldt
PROFILE
Patrik Schönfeldt
Patrik Schoenfeldt contributed to the oemof-solph repository by developing and refining backend features, tutorials, and documentation to improve modeling accuracy, usability, and maintainability. He implemented API naming consistency, stabilized core classes, and enhanced time series data handling, using Python and YAML to ensure robust integration and clear data flows. Patrik addressed cross-platform compatibility, streamlined onboarding through tutorial improvements, and maintained code quality with PEP 8 compliance and automated CI/CD workflows. His work included targeted bug fixes in financial modeling and storage logic, resulting in a more reliable, maintainable codebase that supports both end users and future development.
Overall Statistics
Feature vs Bugs
79%Features
Repository Contributions
97Total
Bugs
8
Commits
97
Features
31
Lines of code
12,867,076
Activity Months16
Your Network
53 peopleSame Organization
@dlr.de36
Work History
April 2026
7 Commits • 2 Features
Apr 1, 2026April 2026 (oemof/oemof-solph) focused on delivering business value through enhanced results visualization, improved tutorial reliability, and strengthened governance for collaboration and releases. Delivered tangible results in analytics workflows, reduced maintenance overhead, and streamlined contributor onboarding.
7 Commits • 2 Features
Apr 1, 2026April 2026 (oemof/oemof-solph) focused on delivering business value through enhanced results visualization, improved tutorial reliability, and strengthened governance for collaboration and releases. Delivered tangible results in analytics workflows, reduced maintenance overhead, and streamlined contributor onboarding.
April 2026
March 2026
6 Commits • 2 Features
Mar 1, 2026March 2026: Delivered key features and fixes for oemof-solph, focusing on usability, optimization flexibility, and output reliability. Documentation improvements were implemented to enhance onboarding and usage (README updated for Python compatibility, added coverage badge, corrected CBC solver install link, and calendar meeting times). Added mipgap support to meta results to expand optimization capabilities. Fixed storage content output formatting in result_object.py to ensure accurate representation of storage contents.
March 2026
6 Commits • 2 Features
Mar 1, 2026March 2026: Delivered key features and fixes for oemof-solph, focusing on usability, optimization flexibility, and output reliability. Documentation improvements were implemented to enhance onboarding and usage (README updated for Python compatibility, added coverage badge, corrected CBC solver install link, and calendar meeting times). Added mipgap support to meta results to expand optimization capabilities. Fixed storage content output formatting in result_object.py to ensure accurate representation of storage contents.
February 2026
3 Commits • 1 Features
Feb 1, 2026February 2026: The oemof-solph focus was on strengthening security/quality automation and improving API documentation clarity, delivering tangible business value with minimal risk and clearer contributor experience. Key changes included upgrading the CodeQL workflow to the latest releases to enhance security analysis and quality checks, and fixing a documentation typo for nominal_capacity validation to reduce user confusion. These updates reinforce maintainability, reduce security risk, and improve API usability for downstream users.
3 Commits • 1 Features
Feb 1, 2026February 2026: The oemof-solph focus was on strengthening security/quality automation and improving API documentation clarity, delivering tangible business value with minimal risk and clearer contributor experience. Key changes included upgrading the CodeQL workflow to the latest releases to enhance security analysis and quality checks, and fixing a documentation typo for nominal_capacity validation to reduce user confusion. These updates reinforce maintainability, reduce security risk, and improve API usability for downstream users.
February 2026
January 2026
13 Commits • 3 Features
Jan 1, 2026January 2026 performance summary for oemof-solph: Delivered user-focused onboarding enhancements and streamlined CI/CD, advancing product reliability and contributor experience. Key features include a Tutorials Documentation Overhaul with a new time-index/temporal aggregation tutorial, a Documentation Badges Cleanup for clearer status indicators, and CI/CD/Contributor workflow improvements to simplify onboarding and reduce CI noise. Overall impact includes faster onboarding, clearer project status, and more stable development pipelines. Technologies and skills demonstrated include documentation best practices, Python-based tutorial content, and CI/CD/tooling optimization.
January 2026
13 Commits • 3 Features
Jan 1, 2026January 2026 performance summary for oemof-solph: Delivered user-focused onboarding enhancements and streamlined CI/CD, advancing product reliability and contributor experience. Key features include a Tutorials Documentation Overhaul with a new time-index/temporal aggregation tutorial, a Documentation Badges Cleanup for clearer status indicators, and CI/CD/Contributor workflow improvements to simplify onboarding and reduce CI noise. Overall impact includes faster onboarding, clearer project status, and more stable development pipelines. Technologies and skills demonstrated include documentation best practices, Python-based tutorial content, and CI/CD/tooling optimization.
December 2025
4 Commits • 3 Features
Dec 1, 2025December 2025: Delivered feature enhancements that improve heat-demand data workflows, data reliability, and release readiness, driving business value through faster onboarding, reproducible analyses, and a cleaner, more maintainable codebase.
4 Commits • 3 Features
Dec 1, 2025December 2025: Delivered feature enhancements that improve heat-demand data workflows, data reliability, and release readiness, driving business value through faster onboarding, reproducible analyses, and a cleaner, more maintainable codebase.
December 2025
November 2025
17 Commits • 5 Features
Nov 1, 2025November 2025 monthly summary for oemof/oemof-solph focusing on delivering business value and technical excellence. Key outcomes include improved user documentation and examples, release readiness for v0.6.1, standardized custom_properties across components, enhanced support for nested energy system graphs with extended cost metrics, and ongoing code maintenance to ensure API compatibility with evolving dependencies. The work enhances user onboarding, reproducibility, and maintainability, supporting smoother deployments and data licensing clarity.
November 2025
17 Commits • 5 Features
Nov 1, 2025November 2025 monthly summary for oemof/oemof-solph focusing on delivering business value and technical excellence. Key outcomes include improved user documentation and examples, release readiness for v0.6.1, standardized custom_properties across components, enhanced support for nested energy system graphs with extended cost metrics, and ongoing code maintenance to ensure API compatibility with evolving dependencies. The work enhances user onboarding, reproducibility, and maintainability, supporting smoother deployments and data licensing clarity.
October 2025
3 Commits • 1 Features
Oct 1, 2025October 2025 (oemof-solph): Focused on code quality and maintainability to reduce technical debt and accelerate future feature delivery. Delivered non-user-facing maintenance work that enhances readability, consistency, and documentation references, laying the groundwork for faster development cycles and easier onboarding for new contributors.
3 Commits • 1 Features
Oct 1, 2025October 2025 (oemof-solph): Focused on code quality and maintainability to reduce technical debt and accelerate future feature delivery. Delivered non-user-facing maintenance work that enhances readability, consistency, and documentation references, laying the groundwork for faster development cycles and easier onboarding for new contributors.
October 2025
September 2025
2 Commits • 1 Features
Sep 1, 2025In September 2025, the oemof-solph project delivered a major enhancement to cost modeling by adding variable and investment cost calculations to the Results class, alongside a small but important documentation fix. These changes improve cost transparency, enable more accurate LCOE analyses, and strengthen user confidence in the modeling workflow. The work was executed with a focus on maintainability and collaboration, leveraging PR-based workflows and clear commit messages.
September 2025
2 Commits • 1 Features
Sep 1, 2025In September 2025, the oemof-solph project delivered a major enhancement to cost modeling by adding variable and investment cost calculations to the Results class, alongside a small but important documentation fix. These changes improve cost transparency, enable more accurate LCOE analyses, and strengthen user confidence in the modeling workflow. The work was executed with a focus on maintainability and collaboration, leveraging PR-based workflows and clear commit messages.
June 2025
2 Commits • 1 Features
Jun 1, 2025June 2025 focused on documentation housekeeping for oemof/oemof-solph. Removed the CodeClimate badge from the README and streamlined contribution guidelines by removing obsolete references and clarifying commit messaging to better explain design decisions. Changes were versioned in two commits that captured the effort: 2e66d80f989874cd06c21b24886b4948cfd60350 (Remove codeclimate batch) and e545f875c2d855718fd499aedae048c9e4a049a9 (Apply doc wording changes from code review).
2 Commits • 1 Features
Jun 1, 2025June 2025 focused on documentation housekeeping for oemof/oemof-solph. Removed the CodeClimate badge from the README and streamlined contribution guidelines by removing obsolete references and clarifying commit messaging to better explain design decisions. Changes were versioned in two commits that captured the effort: 2e66d80f989874cd06c21b24886b4948cfd60350 (Remove codeclimate batch) and e545f875c2d855718fd499aedae048c9e4a049a9 (Apply doc wording changes from code review).
June 2025
May 2025
6 Commits • 2 Features
May 1, 2025May 2025 monthly summary for oemof/oemof-solph focused on delivering user-facing value, improving code quality, and strengthening maintainability. Key initiatives centering on the Home PV tutorial and documentation standards were completed, with an emphasis on reproducibility and licensing hygiene. No critical bugs were reported this month; work concentrated on clarity, onboarding, and alignment with project-wide styling.
May 2025
6 Commits • 2 Features
May 1, 2025May 2025 monthly summary for oemof/oemof-solph focused on delivering user-facing value, improving code quality, and strengthening maintainability. Key initiatives centering on the Home PV tutorial and documentation standards were completed, with an emphasis on reproducibility and licensing hygiene. No critical bugs were reported this month; work concentrated on clarity, onboarding, and alignment with project-wide styling.
April 2025
5 Commits • 2 Features
Apr 1, 2025April 2025 performance summary for oemof-solph: Focused on improving accessibility, learning resources, and model reliability. Key outcomes include: (1) Enhanced documentation and tutorials with Windows CBC install guidance, a dedicated tutorials/ directory, and updated energy-system modeling guidance, reducing onboarding time and improving cross-platform usability. (2) Expanded introductory data for PV modeling by adding a new CSV dataset for home_pv tutorial, enabling realistic time-series demonstrations and faster hands-on learning. (3) Fixed a critical storage costs indexing bug to ensure correct cost accounting for energy stored across time steps and modes, improving model accuracy and stakeholder trust. These efforts leverage Python-based tooling, documentation improvements, and data integration, delivering measurable business value through faster onboarding, more reliable cost modeling, and improved user confidence.
5 Commits • 2 Features
Apr 1, 2025April 2025 performance summary for oemof-solph: Focused on improving accessibility, learning resources, and model reliability. Key outcomes include: (1) Enhanced documentation and tutorials with Windows CBC install guidance, a dedicated tutorials/ directory, and updated energy-system modeling guidance, reducing onboarding time and improving cross-platform usability. (2) Expanded introductory data for PV modeling by adding a new CSV dataset for home_pv tutorial, enabling realistic time-series demonstrations and faster hands-on learning. (3) Fixed a critical storage costs indexing bug to ensure correct cost accounting for energy stored across time steps and modes, improving model accuracy and stakeholder trust. These efforts leverage Python-based tooling, documentation improvements, and data integration, delivering measurable business value through faster onboarding, more reliable cost modeling, and improved user confidence.
April 2025
March 2025
3 Commits • 2 Features
Mar 1, 2025Month: 2025-03 | Repository: oemof/oemof-solph Key outcomes: - Pyomo results support added to solph.Results, enabling storage of model.solver_results and returning Pyomo results when available. - Basic example refactored to showcase the new Results object and its processing/display of optimization outcomes. - Documentation updated to link the US English Microsoft page for environment variable setup, improving onboarding. Business value and impact: - Provides end-to-end visibility of optimization results within solph, reducing manual post-processing and accelerating analysis. - Improves user onboarding and documentation accuracy, lowering setup friction for new users. Technologies/skills demonstrated: - Pyomo integration, solver result handling, and Python class design. - Version control discipline with concise, traceable commits. - Documentation and example design to illustrate new capabilities.
March 2025
3 Commits • 2 Features
Mar 1, 2025Month: 2025-03 | Repository: oemof/oemof-solph Key outcomes: - Pyomo results support added to solph.Results, enabling storage of model.solver_results and returning Pyomo results when available. - Basic example refactored to showcase the new Results object and its processing/display of optimization outcomes. - Documentation updated to link the US English Microsoft page for environment variable setup, improving onboarding. Business value and impact: - Provides end-to-end visibility of optimization results within solph, reducing manual post-processing and accelerating analysis. - Improves user onboarding and documentation accuracy, lowering setup friction for new users. Technologies/skills demonstrated: - Pyomo integration, solver result handling, and Python class design. - Version control discipline with concise, traceable commits. - Documentation and example design to illustrate new capabilities.
February 2025
2 Commits • 2 Features
Feb 1, 2025February 2025 monthly summary for oemof-solph: focused on developer onboarding improvements and ensuring example compatibility to reduce runtime errors and accelerate contributor ramp-up. Delivered two targeted documentation features, with explicit commit references, to clarify workflows and prevent version-mismatch issues.
2 Commits • 2 Features
Feb 1, 2025February 2025 monthly summary for oemof-solph: focused on developer onboarding improvements and ensuring example compatibility to reduce runtime errors and accelerate contributor ramp-up. Delivered two targeted documentation features, with explicit commit references, to clarify workflows and prevent version-mismatch issues.
February 2025
January 2025
15 Commits • 2 Features
Jan 1, 2025January 2025 monthly summary for oemof-solph: Key features delivered: - EV charging tutorial enhancements: added support for unidirectional and bidirectional charging, adjusted energy system creation, plotting parameters, and charging behavior based on car presence and a 230V charger; introduced diverse charging scenarios. Commits include c49e3a02066f98644c259db4f0009ea6acd792b3, 64bbd17e67e7028262d95342f8b83b6c7398523b, and ead6dd72853ea1c8ca1f6f081e27e716f4c22d65. Major bugs fixed: - Testing environment dependency fix: re-added dependencies ('py' and 'pytest') to tox.ini to ensure tests run reliably. Commit: 7fa12cc90444461c1ba6e494c50714b2393387d3. Documentation, packaging, and example maintenance: - Documentation and packaging maintenance across the project: update status badges to reflect CI workflow changes, fix tutorial directory naming, include tutorials in packaging, apply Black formatting, update and align example scripts for compatibility and reliability, and improve smoke-test data handling. Commits include c516a6b4aefdd05932635e548fabb4e3e2f0dbc3; 69a8b7a29a835d197629bd3bfa3d5457db58ff3c; ca3b7f93385187939980e1798ff5aeb557a943fd; d9ccfc5429930a6c128c02fd3c6218f4e883dcb6; 22221186bd3b0e4d2b5219ae498fc7201b0b6ba3; 9506ed160a61be0aa090913781932f8d7126b8e3; c9570f4417cff7fc5f12d5d9679e13b6d4787599; 520f963ed885a436ab3fa5018ada1df409a7c84d; e03fa9086286d83e58b21fe4ef3cd6034f677012; 6e0a7573c7b09172b1c556cf17672424a3fbace1; a62400520d02a19e5ac51f9dbc9c31edc68a29aa. Overall impact and accomplishments: - Improved onboarding, reduced CI/test failures, and stronger developer experience through better documentation, packaging, and test reliability. Technologies/skills demonstrated: - Python, pytest/tox, Black formatting, packaging tooling (pyproject.toml), CI hygiene, documentation craftsmanship, and tutorial maintenance.
January 2025
15 Commits • 2 Features
Jan 1, 2025January 2025 monthly summary for oemof-solph: Key features delivered: - EV charging tutorial enhancements: added support for unidirectional and bidirectional charging, adjusted energy system creation, plotting parameters, and charging behavior based on car presence and a 230V charger; introduced diverse charging scenarios. Commits include c49e3a02066f98644c259db4f0009ea6acd792b3, 64bbd17e67e7028262d95342f8b83b6c7398523b, and ead6dd72853ea1c8ca1f6f081e27e716f4c22d65. Major bugs fixed: - Testing environment dependency fix: re-added dependencies ('py' and 'pytest') to tox.ini to ensure tests run reliably. Commit: 7fa12cc90444461c1ba6e494c50714b2393387d3. Documentation, packaging, and example maintenance: - Documentation and packaging maintenance across the project: update status badges to reflect CI workflow changes, fix tutorial directory naming, include tutorials in packaging, apply Black formatting, update and align example scripts for compatibility and reliability, and improve smoke-test data handling. Commits include c516a6b4aefdd05932635e548fabb4e3e2f0dbc3; 69a8b7a29a835d197629bd3bfa3d5457db58ff3c; ca3b7f93385187939980e1798ff5aeb557a943fd; d9ccfc5429930a6c128c02fd3c6218f4e883dcb6; 22221186bd3b0e4d2b5219ae498fc7201b0b6ba3; 9506ed160a61be0aa090913781932f8d7126b8e3; c9570f4417cff7fc5f12d5d9679e13b6d4787599; 520f963ed885a436ab3fa5018ada1df409a7c84d; e03fa9086286d83e58b21fe4ef3cd6034f677012; 6e0a7573c7b09172b1c556cf17672424a3fbace1; a62400520d02a19e5ac51f9dbc9c31edc68a29aa. Overall impact and accomplishments: - Improved onboarding, reduced CI/test failures, and stronger developer experience through better documentation, packaging, and test reliability. Technologies/skills demonstrated: - Python, pytest/tox, Black formatting, packaging tooling (pyproject.toml), CI hygiene, documentation craftsmanship, and tutorial maintenance.
December 2024
3 Commits • 2 Features
Dec 1, 2024December 2024 (2024-12) monthly summary for oemof-solph. This period focused on strengthening maintainability, API clarity, and long-term sustainability of the project. Key deliverables include code quality improvements with deprecation timeline alignment and API simplification to reduce user error and future maintenance effort. No critical bugs were reported in this period; the changes are aimed at reducing complexity and improving developer experience while preserving existing behavior where safe. Highlights: - Code quality and deprecation timeline alignment: Consolidated documentation and code hygiene updates, aligned deprecation timeline comments, and cleaned up GenericStorage docstrings to Black style, improving maintainability and readability. Commits: 4e745f0c3a67cc95131db7d6570c47a72bc9bd25; 05885631b9dee67f2dec5bbf65aba8356482b6be. - API simplification: Removed internal investment interest_rate parameter and related docs/tests; default to 0 when not provided; add warning if model's discount rate is not used. Commit: 3130ee5eeca35be1d3cb66eb3862f49d3f456c58. Impact: Enhanced long-term maintainability, reduced API surface area, and safer defaults that minimize misconfiguration risk for users while preserving expected behavior where appropriate.
3 Commits • 2 Features
Dec 1, 2024December 2024 (2024-12) monthly summary for oemof-solph. This period focused on strengthening maintainability, API clarity, and long-term sustainability of the project. Key deliverables include code quality improvements with deprecation timeline alignment and API simplification to reduce user error and future maintenance effort. No critical bugs were reported in this period; the changes are aimed at reducing complexity and improving developer experience while preserving existing behavior where safe. Highlights: - Code quality and deprecation timeline alignment: Consolidated documentation and code hygiene updates, aligned deprecation timeline comments, and cleaned up GenericStorage docstrings to Black style, improving maintainability and readability. Commits: 4e745f0c3a67cc95131db7d6570c47a72bc9bd25; 05885631b9dee67f2dec5bbf65aba8356482b6be. - API simplification: Removed internal investment interest_rate parameter and related docs/tests; default to 0 when not provided; add warning if model's discount rate is not used. Commit: 3130ee5eeca35be1d3cb66eb3862f49d3f456c58. Impact: Enhanced long-term maintainability, reduced API surface area, and safer defaults that minimize misconfiguration risk for users while preserving expected behavior where appropriate.
December 2024
November 2024
6 Commits
Nov 1, 2024Monthly summary for 2024-11 focusing on bug fixes and release readiness for oemof/oemof-solph. No new features delivered this month; main work centered on correcting nominal capacity naming, aligning example scripts and tests with the correct parameter usage, and preparing for a release 0.5.6 compatible with Python 3.10 and NumPy 2. Demonstrated strong adherence to code reviews and documentation updates, improving reliability for downstream users.
November 2024
6 Commits
Nov 1, 2024Monthly summary for 2024-11 focusing on bug fixes and release readiness for oemof/oemof-solph. No new features delivered this month; main work centered on correcting nominal capacity naming, aligning example scripts and tests with the correct parameter usage, and preparing for a release 0.5.6 compatible with Python 3.10 and NumPy 2. Demonstrated strong adherence to code reviews and documentation updates, improving reliability for downstream users.
Activity
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Quality Metrics
Correctness97.6%
Maintainability97.0%
Architecture97.0%
Performance95.8%
AI Usage20.4%
Skills & Technologies
Programming Languages
CSVINIPythonRSTRstTOMLYAMLreStructuredTextrst
Technical Skills
API DesignAPI designBackend DevelopmentBug FixBuild ConfigurationCI/CDCode FormattingCode MaintenanceCode OrganizationCode RefactoringCode formattingConfiguration ManagementContinuous IntegrationData AnalysisData Engineering
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