kausaltech/kausal-paths
Nov 2024 – Nov 2025
13 Months active
Languages Used
PythonYAMLpythonyamlGraphQLSQLRShell
Technical Skills
Backend DevelopmentConfiguration ManagementData EngineeringData IntegrationData ModelingData Processing
Jouni Tuomisto
PROFILE
Jouni Tuomisto
Jouni Tuomisto developed and maintained the kausaltech/kausal-paths repository, delivering a robust platform for climate action planning and data-driven policy analysis. Over 13 months, he engineered features for scenario modeling, dataset onboarding, and explainability, using Python, Polars, and YAML to streamline data ingestion, transformation, and visualization. His work included building modular data pipelines, integrating city-level emissions models, and enhancing reporting with Excel and CSV exports. Jouni refactored legacy code, improved configuration management, and implemented tools for cross-city analytics. The depth of his engineering ensured scalable, maintainable solutions that improved data quality, transparency, and decision support for stakeholders.
Overall Statistics
Feature vs Bugs
66%Features
Repository Contributions
446Total
Bugs
96
Commits
446
Features
183
Lines of code
122,427
Activity Months13
Your Network
15 peopleSame Organization
@kausal.tech5
Work History
November 2025
4 Commits • 3 Features
Nov 1, 2025November 2025 monthly performance summary for kaausaltech/kausal-paths. Focused delivery across three features with refactors to improve maintainability and data ingestion reliability. No explicit bug fixes recorded this month; primary value came from feature delivery and code quality improvements.
4 Commits • 3 Features
Nov 1, 2025November 2025 monthly performance summary for kaausaltech/kausal-paths. Focused delivery across three features with refactors to improve maintainability and data ingestion reliability. No explicit bug fixes recorded this month; primary value came from feature delivery and code quality improvements.
November 2025
October 2025
55 Commits • 20 Features
Oct 1, 2025Oct 2025 monthly summary for kausal-paths: Implemented a YAML-driven Symmetry: SYKE multidim framework enabling lighter Finland syke integration, introduced Cork-nzc base, and added edge tags for historical year/history extension; enhanced dataset thresholds and upload flow; delivered Finland-syke domain enhancements with cost module, emission trades, translations improvements, and climate-law outcome node; advanced IKKA core initialization and refactor with modularization and node generation; improved explanations UX including removing double-explanations, clearer layout, and corrected labels; plus targeted bug fixes across explanations, multipliers, and historical-year logic. This work establishes a scalable foundation for future analytics, improves data quality, and accelerates business value delivery.
October 2025
55 Commits • 20 Features
Oct 1, 2025Oct 2025 monthly summary for kausal-paths: Implemented a YAML-driven Symmetry: SYKE multidim framework enabling lighter Finland syke integration, introduced Cork-nzc base, and added edge tags for historical year/history extension; enhanced dataset thresholds and upload flow; delivered Finland-syke domain enhancements with cost module, emission trades, translations improvements, and climate-law outcome node; advanced IKKA core initialization and refactor with modularization and node generation; improved explanations UX including removing double-explanations, clearer layout, and corrected labels; plus targeted bug fixes across explanations, multipliers, and historical-year logic. This work establishes a scalable foundation for future analytics, improves data quality, and accelerates business value delivery.
September 2025
62 Commits • 19 Features
Sep 1, 2025September 2025 was highlighted by significant progress on data modeling, dataset management, and tooling across kausal-paths. The team delivered the Potsdam-GPC core data model and scenarios improvements, enabling energy-action linkage and net-emissions alignment, while restoring the costs framework using Masterplan as the basis and applying final adjustments to IDs and target year. We fixed critical NZP and Potsdam bugs that impacted data integrity and reporting, improved emission data processing in the instance loader, and advanced data exploration with a Jupyter-based collect_city_data pipeline. Dataset restructuring and tooling consolidation improved data quality, consistency, and operational efficiency, supporting faster decision-making and policy analysis while strengthening governance around datasets and explanations.
62 Commits • 19 Features
Sep 1, 2025September 2025 was highlighted by significant progress on data modeling, dataset management, and tooling across kausal-paths. The team delivered the Potsdam-GPC core data model and scenarios improvements, enabling energy-action linkage and net-emissions alignment, while restoring the costs framework using Masterplan as the basis and applying final adjustments to IDs and target year. We fixed critical NZP and Potsdam bugs that impacted data integrity and reporting, improved emission data processing in the instance loader, and advanced data exploration with a Jupyter-based collect_city_data pipeline. Dataset restructuring and tooling consolidation improved data quality, consistency, and operational efficiency, supporting faster decision-making and policy analysis while strengthening governance around datasets and explanations.
September 2025
August 2025
58 Commits • 31 Features
Aug 1, 2025August 2025 performance summary for kausal-paths (kausaltech/kausal-paths). Delivered significant feature work and stability improvements across Espoo, Potsdam, Munich, Longmont, and Finland-SYKE datasets. Key outcomes include Esso dataset management and filtering enhancements, new Muenchen-demo theming, Longmont-dev updates with dataset pulling and unit fixes, and a robust Upload datasets script refactor with ArgumentParser. Enforced governance with mandatory reference_year across all instances, and completed Potsdam-GPC overhaul including new actions and simplified data structures. The work also delivered code cleanup, dependency updates, UI translations, and city data tooling to improve maintainability, deployment speed, and cross-city data consistency. Overall impact: higher data quality, better traceability, scalable city-level emissions modeling, and faster onboarding of new environments.
August 2025
58 Commits • 31 Features
Aug 1, 2025August 2025 performance summary for kausal-paths (kausaltech/kausal-paths). Delivered significant feature work and stability improvements across Espoo, Potsdam, Munich, Longmont, and Finland-SYKE datasets. Key outcomes include Esso dataset management and filtering enhancements, new Muenchen-demo theming, Longmont-dev updates with dataset pulling and unit fixes, and a robust Upload datasets script refactor with ArgumentParser. Enforced governance with mandatory reference_year across all instances, and completed Potsdam-GPC overhaul including new actions and simplified data structures. The work also delivered code cleanup, dependency updates, UI translations, and city data tooling to improve maintainability, deployment speed, and cross-city data consistency. Overall impact: higher data quality, better traceability, scalable city-level emissions modeling, and faster onboarding of new environments.
July 2025
21 Commits • 11 Features
Jul 1, 2025Monthly summary for 2025-07 focusing on delivering business value through stable NZP progress tracking, enhanced visualizations, expanded data capabilities, and robust data pipelines. Highlights include reliability fixes in NZP progress tracking, visualization improvements with new use_as_total operation, and substantive data-model expansions across Longmont-dev, while establishing groundwork for energy planning studies with Finland-syke workspace. The work emphasizes performance, maintainability, and cross-team impact.
21 Commits • 11 Features
Jul 1, 2025Monthly summary for 2025-07 focusing on delivering business value through stable NZP progress tracking, enhanced visualizations, expanded data capabilities, and robust data pipelines. Highlights include reliability fixes in NZP progress tracking, visualization improvements with new use_as_total operation, and substantive data-model expansions across Longmont-dev, while establishing groundwork for energy planning studies with Finland-syke workspace. The work emphasizes performance, maintainability, and cross-team impact.
July 2025
June 2025
28 Commits • 11 Features
Jun 1, 2025June 2025 monthly summary for kausal-paths (kausaltech/kausal-paths). This period delivered a strong blend of data-model enhancements, feature expansions, and targeted bug fixes that collectively improved data quality, reporting capabilities, and cross-city analytics. Key features delivered reduced data gaps, extended forecasting coverage, and richer reporting dimensions, directly supporting better planning decisions and stakeholder communication.
June 2025
28 Commits • 11 Features
Jun 1, 2025June 2025 monthly summary for kausal-paths (kausaltech/kausal-paths). This period delivered a strong blend of data-model enhancements, feature expansions, and targeted bug fixes that collectively improved data quality, reporting capabilities, and cross-city analytics. Key features delivered reduced data gaps, extended forecasting coverage, and richer reporting dimensions, directly supporting better planning decisions and stakeholder communication.
May 2025
26 Commits • 6 Features
May 1, 2025Month: 2025-05 — Concise monthly summary focusing on business value and technical achievements across kausal-paths. Delivered major enhancements to dataset explainability, expanded German demo content, advanced Longmont data integration, and comprehensive Demo Stadt updates, while stabilizing the system with targeted bug fixes.
26 Commits • 6 Features
May 1, 2025Month: 2025-05 — Concise monthly summary focusing on business value and technical achievements across kausal-paths. Delivered major enhancements to dataset explainability, expanded German demo content, advanced Longmont data integration, and comprehensive Demo Stadt updates, while stabilizing the system with targeted bug fixes.
May 2025
April 2025
26 Commits • 11 Features
Apr 1, 2025April 2025 for kausal-paths focused on expanding dataset onboarding, reliability improvements, and feature-rich enhancements across multiple locales. notable deliveries include Espoo dataset ingestion to the DB with a generalized node for datasets; Koeln-GPC updates to use and activate new datasets; a dynamic cohort model for forestry-fi; enhancements to the explainability system including a Show_explanation capability; and translations along with a congestion charge demo in Athens, Espoo, and Potsdam. Supporting fixes improved data quality and stability (e.g., NZC truck electrification/fossil heating fixes, harvesting_probability rename, Espoo data quality corrections). Collectively, these changes reduce onboarding time for new datasets, improve data accuracy and transparency, and enable richer scenario analysis for policy and planning. Representative commits include 1f02b0acf273143137bdb1b1f4692f49fa0495ea, c3f8fc2d172a5dd0de5b5767d55e465d1f3a2e1d, fd5394de69f20e733b337c6d96f1d12004910727, 315877635fd6945639c14422a141f7fdbe6991c0, 6891980aabc89dd591ea6b6e2416b86d8b67d08d, c10f658ec2aa8de608332e37b219e5b4e8f6e9c0, 135f71f4b8347dcf743264c26da477057967c400, 4102417539a579bc7e968b629739bc8ec2d39291, f93b47021325da10f6bcbcba1789f0af52bd332e, 45b59fe945bf0f97c047587e99d44b91b3a9548d, bb85cb6a590ba8f9d6e24d5e12ed4971defd1102, e0a63e2c0e816d4b7363037371dd74ad40b5b2c3, 4e386b44ac661b66e2e8509f9baa29a32a0e1cec
April 2025
26 Commits • 11 Features
Apr 1, 2025April 2025 for kausal-paths focused on expanding dataset onboarding, reliability improvements, and feature-rich enhancements across multiple locales. notable deliveries include Espoo dataset ingestion to the DB with a generalized node for datasets; Koeln-GPC updates to use and activate new datasets; a dynamic cohort model for forestry-fi; enhancements to the explainability system including a Show_explanation capability; and translations along with a congestion charge demo in Athens, Espoo, and Potsdam. Supporting fixes improved data quality and stability (e.g., NZC truck electrification/fossil heating fixes, harvesting_probability rename, Espoo data quality corrections). Collectively, these changes reduce onboarding time for new datasets, improve data accuracy and transparency, and enable richer scenario analysis for policy and planning. Representative commits include 1f02b0acf273143137bdb1b1f4692f49fa0495ea, c3f8fc2d172a5dd0de5b5767d55e465d1f3a2e1d, fd5394de69f20e733b337c6d96f1d12004910727, 315877635fd6945639c14422a141f7fdbe6991c0, 6891980aabc89dd591ea6b6e2416b86d8b67d08d, c10f658ec2aa8de608332e37b219e5b4e8f6e9c0, 135f71f4b8347dcf743264c26da477057967c400, 4102417539a579bc7e968b629739bc8ec2d39291, f93b47021325da10f6bcbcba1789f0af52bd332e, 45b59fe945bf0f97c047587e99d44b91b3a9548d, bb85cb6a590ba8f9d6e24d5e12ed4971defd1102, e0a63e2c0e816d4b7363037371dd74ad40b5b2c3, 4e386b44ac661b66e2e8509f9baa29a32a0e1cec
March 2025
37 Commits • 13 Features
Mar 1, 2025March 2025 monthly summary for kausal-paths focused on delivering core graph/action capabilities, platform stability, and dataset readiness, while improving correctness and maintainability across the codebase.
37 Commits • 13 Features
Mar 1, 2025March 2025 monthly summary for kausal-paths focused on delivering core graph/action capabilities, platform stability, and dataset readiness, while improving correctness and maintainability across the codebase.
March 2025
February 2025
46 Commits • 24 Features
Feb 1, 2025February 2025 was marked by clarity, scalability, and reliability improvements across kausal-paths. Notable features and refactors included a naming and attribute cleanup that improves maintainability and future-proofing, node-level customization capabilities, and a broader data-workflow architecture. In addition, targeted bug fixes stabilized calculations and graphs, enabling more reliable scenario analysis and dashboards for business stakeholders. The month also laid groundwork for scalable modeling and internationalization through architecture refinements and translations updates.
February 2025
46 Commits • 24 Features
Feb 1, 2025February 2025 was marked by clarity, scalability, and reliability improvements across kausal-paths. Notable features and refactors included a naming and attribute cleanup that improves maintainability and future-proofing, node-level customization capabilities, and a broader data-workflow architecture. In addition, targeted bug fixes stabilized calculations and graphs, enabling more reliable scenario analysis and dashboards for business stakeholders. The month also laid groundwork for scalable modeling and internationalization through architecture refinements and translations updates.
January 2025
33 Commits • 16 Features
Jan 1, 2025January 2025 (kausal-paths repository) delivered substantial improvements across probability modeling, model stability, data quality, and reporting, driving higher reliability and faster decision support for planning and forecasting. The team completed core probability infrastructure enhancements and a scalable 100-sample greentransition workflow with supporting dataset integration, enabling richer scenario analysis. Repaired critical model reliability issues: fixed recycling-goal crashes in NZC/NCZ and extended NZC final forecast horizon from 2045 to 2051 to align with longer-term business planning. Introduced value-of-information (VOI) calculations into compute_indicator to quantify the business value of additional data. Enabled deeper model integration and health tooling via the VTT-DUT updates with HEAT data and streamlined health modules. Improved data quality and reporting through crop_to_model_range, a multi-instance data collection tool, centralized YAML-based URL configuration, and expanded Excel reporting formats (long and wide) with streamlined visuals. Conducted comprehensive compatibility checks across NZP components, fixed select NZP bugs, and completed a suite of quality fixes (Espoo formatting, non-observations zero, plot_limit_for_indicator, etc.). These efforts collectively enhance model reliability, insight accuracy, and reporting capabilities for stakeholders.
33 Commits • 16 Features
Jan 1, 2025January 2025 (kausal-paths repository) delivered substantial improvements across probability modeling, model stability, data quality, and reporting, driving higher reliability and faster decision support for planning and forecasting. The team completed core probability infrastructure enhancements and a scalable 100-sample greentransition workflow with supporting dataset integration, enabling richer scenario analysis. Repaired critical model reliability issues: fixed recycling-goal crashes in NZC/NCZ and extended NZC final forecast horizon from 2045 to 2051 to align with longer-term business planning. Introduced value-of-information (VOI) calculations into compute_indicator to quantify the business value of additional data. Enabled deeper model integration and health tooling via the VTT-DUT updates with HEAT data and streamlined health modules. Improved data quality and reporting through crop_to_model_range, a multi-instance data collection tool, centralized YAML-based URL configuration, and expanded Excel reporting formats (long and wide) with streamlined visuals. Conducted comprehensive compatibility checks across NZP components, fixed select NZP bugs, and completed a suite of quality fixes (Espoo formatting, non-observations zero, plot_limit_for_indicator, etc.). These efforts collectively enhance model reliability, insight accuracy, and reporting capabilities for stakeholders.
January 2025
December 2024
31 Commits • 11 Features
Dec 1, 2024December 2024 delivered substantial platform improvements for kausal-paths, prioritizing data quality, feature delivery, and actionable insights for planning and policy analysis. The month focused on Espoo data and actions, cross-cutting data hygiene improvements, and expanded data ingestion capabilities, enabling faster, more reliable forecasting and decision-making.
December 2024
31 Commits • 11 Features
Dec 1, 2024December 2024 delivered substantial platform improvements for kausal-paths, prioritizing data quality, feature delivery, and actionable insights for planning and policy analysis. The month focused on Espoo data and actions, cross-cutting data hygiene improvements, and expanded data ingestion capabilities, enabling faster, more reliable forecasting and decision-making.
November 2024
19 Commits • 7 Features
Nov 1, 20242024-11 monthly summary for kausal-paths focusing on delivering high-value features, hardening models, and improving data quality across multiple repositories. The month emphasized robust configuration management, flexible data handling, and expanded modeling capabilities to support more granular policy and scenario analysis. Deliverables span configuration quality improvements, enhanced data workflows, and core modeling refinements that reduce runtime risk and improve decision support.
19 Commits • 7 Features
Nov 1, 20242024-11 monthly summary for kausal-paths focusing on delivering high-value features, hardening models, and improving data quality across multiple repositories. The month emphasized robust configuration management, flexible data handling, and expanded modeling capabilities to support more granular policy and scenario analysis. Deliverables span configuration quality improvements, enhanced data workflows, and core modeling refinements that reduce runtime risk and improve decision support.
November 2024
Activity
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Quality Metrics
Correctness85.0%
Maintainability85.2%
Architecture82.8%
Performance72.6%
AI Usage20.8%
Skills & Technologies
Programming Languages
GraphQLJupyter NotebookPythonRSQLShellTOMLTextYAMLpython
Technical Skills
API DesignAPI DevelopmentAPI IntegrationAiohttpAlgorithm ImplementationArgparseAsynchronous ProgrammingBackend DevelopmentBug FixBug FixingCSV ProcessingClimate Action PlanningClimate Change AnalysisClimate Data AnalysisClimate Modeling
Repositories Contributed To
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