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Michael Geers

PROFILE

Michael Geers

Michael Geers developed and maintained core features for the evcc-io/evcc repository, focusing on robust UI/UX, configuration management, and system reliability over an 18-month period. He engineered solutions spanning frontend and backend, such as tariff configuration, energy flow visualization, and authentication flows, using Go, TypeScript, and Vue.js. His work addressed browser compatibility, security, and internationalization, while integrating with APIs and external systems like Home Assistant. Michael consistently improved test automation and CI/CD pipelines, ensuring stable releases and maintainable code. His contributions demonstrated depth in both architectural design and hands-on implementation, resulting in a resilient, user-focused energy management platform.

Overall Statistics

Feature vs Bugs

67%Features

Repository Contributions

427Total
Bugs
103
Commits
427
Features
211
Lines of code
104,127
Activity Months18

Work History

April 2026

4 Commits • 2 Features

Apr 1, 2026

April 2026 (2026-04) focused on stabilizing cross-browser behavior, expanding visibility into charging economics and sustainability metrics, and hardening authentication flow. Key wins include delivering a navigation blur fallback for non-supporting browsers, introducing reference pricing and CO2 metrics for charging sessions, and resolving important reliability defects in Safari WebSocket handling and authentication race conditions. These changes improve UX consistency, provide cost and environmental insight for users, and strengthen system robustness across browser environments.

March 2026

41 Commits • 16 Features

Mar 1, 2026

Monthly summary for 2026-03: Delivered core UI and reliability improvements, focused on business value, user experience, and maintainability. The work includes feature enhancements in tariff configuration, UX improvements in authentication-related flows, robust real-time websocket behavior across Safari, privacy enhancements, and ongoing maintenance to keep dependencies current and performance stable.

February 2026

29 Commits • 14 Features

Feb 1, 2026

February 2026 monthly summary for evcc-io/evcc: Delivered notable platform stability improvements, Node.js 24 LTS readiness, and onboarding/UX enhancements that enable faster, safer deployments and improved customer outcomes. The month balanced maintenance, feature refinements, and reliability work across core UI and configuration components, while expanding sustainability visibility and developer experience. Key outcomes include readiness for Node 24 LTS, updates to npm dependencies, and onboarding flow improvements that reduce friction for new users. Significant UX and configuration enhancements were delivered in the Config UI, Forecast UI, and Session UI, enabling clearer workflows and improved data presentation. Reliability and testing investments reduced flakiness and improved end-to-end stability, including fixes for flaky plan tests and uncached UI reload behavior. Business value delivered: smoother onboarding and configuration experiences, more maintainable codebase with modern tooling, stronger UI reliability, and enhanced sustainability reporting for end users. These changes position the project for faster feature delivery and lower support incidents in the next release cycle.

January 2026

29 Commits • 16 Features

Jan 1, 2026

January 2026 (2026-01) focused on stabilizing core functionality, accelerating test cycles, and delivering targeted UI/config enhancements across evcc. Delivered faster Playwright test runner, a Run without loadpoints option, Config UI enhancements to edit existing OCPP chargers, Plan UI improvements to always show settings, and a revert of the residual power default to 100W to prevent unintended energy consumption. Also completed npm dependency upgrades to improve security and maintainability.

December 2025

21 Commits • 11 Features

Dec 1, 2025

Overview: In December 2025, delivered a broad set of UI/UX improvements, reliability fixes, and maintenance work across the evcc codebase. The work enhances user onboarding, configuration accuracy, localization readiness, and system stability while tightening build hygiene for easier future releases.

November 2025

14 Commits • 11 Features

Nov 1, 2025

November 2025 monthly summary for evcc project focused on delivering reliable UI/UX improvements, performance enhancements, and extended planning capabilities. The work emphasizes measurable business value through improved configuration fidelity, data freshness, and integration stability across Modbus, Home Assistant, and grid/forecast features.

October 2025

35 Commits • 14 Features

Oct 1, 2025

October 2025 focused on strengthening security and CI/CD quality, stabilizing releases, and enhancing user experience. Key features delivered include CI/CD security hardening and CodeQL tooling, SHM UI improvements (removing delete button and refactoring device modals), and Config UI enhancements (external meter support, template handling and grid title). The release pipeline was also improved by publishing OpenAPI specs on release, while nightly builds and deploy processes were stabilized to reduce outages. These efforts improved security posture, reduced release risk, and delivered tangible business value through safer configuration, better UX, and faster, more reliable deployments. Technologies demonstrated include GitHub Actions, CodeQL, Playwright, OpenAPI, npm upgrades, and advanced UI/UX engineering.

September 2025

21 Commits • 8 Features

Sep 1, 2025

September 2025 delivered a focused set of user-facing features for planning flexibility, observability, and offline resilience, while significantly improving reliability, quality, and governance in CI/CD and repository hygiene. The work drives higher user value through enhanced visibility, more flexible configuration, and streamlined issue reporting, while reducing risk via automated quality improvements and security/documentation enhancements.

August 2025

21 Commits • 16 Features

Aug 1, 2025

August 2025: Delivered high-impact features and stability improvements across evcc, focusing on reliability, performance, and developer experience. Major deliverables include backward-compatible telemetry publishing migration, UI layout stability timer, and a dedicated database cache table. Sponsor workflow improvements in Config UI, including sponsor communication and token flow enhancements, were implemented to improve sponsor engagement and reduce configuration errors. Targeted maintenance work (npm upgrades, Storybook fixes, AGENTS.md) reduced technical debt and improved developer experience. Stabilization efforts extended to test automation with Playwright persistence plans and device-mock tagging to improve test reliability and reduce flakiness. Overall, these changes increased system reliability, improved user experience in core UI flows, and enabled faster, safer feature delivery.

July 2025

19 Commits • 5 Features

Jul 1, 2025

July 2025 focused on stabilizing developer workflows, expanding device support, and refining the UI/UX to reduce operator friction. Delivered heating device configuration in the UI with YAML support; improved configuration UI with required fields and better displays; enhanced backup/restore UX; added optional CLI config loading; and stabilized CI/CD with Depot runners and Go module rollbacks as needed.

June 2025

23 Commits • 12 Features

Jun 1, 2025

June 2025 delivered meaningful business value through user-focused resiliency features, safety/config enhancements, and reliability improvements across evcc-io/evcc. Key user-facing UX improvements, safety controls for loadpoints, and security hardening were complemented by performance/stability improvements in testing and by documentation alignment, enabling faster releases and reduced support overhead.

May 2025

29 Commits • 8 Features

May 1, 2025

May 2025 monthly summary: focused on stabilizing the configuration UI, hardening forecasting/UI reliability, expanding usability, and enabling better data access and localization. Key outcomes include improved config UI stability and end-to-end test reliability; targeted forecast and UI fixes for negative prices, CO2 formatting, and NaN handling; new user-facing features such as 12h/24h time format and custom CSS; energyflow enhancements for loadpoint handling and unit consistency; and internationalization plus data export capabilities to broaden adoption and analytics. These deliverables reduce support overhead, improve planning accuracy, and empower users with more flexible configuration and exports, while modernizing the codebase with npm upgrades and lint improvements.

April 2025

23 Commits • 8 Features

Apr 1, 2025

April 2025 monthly summary for evcc: Delivered substantial UI, configurability, and reliability improvements. Expanded Energyflow UI to cover solar, battery, and loadpoints; enhanced Config UI with automatic Plant ID generation and i18n translations; introduced CO2 forecasting in Green Grid Compass with regional adjustments; stabilized end-to-end tests with enhanced logging and modal handling; polished UI with Zero Watt display and finish time; and improved configuration options (priority 0, Modbus 8N2, i18n) to boost usability and international collaboration.

March 2025

31 Commits • 25 Features

Mar 1, 2025

March 2025 monthly summary for evcc: Delivered a suite of Config UI enhancements, reliability improvements, and tooling upgrades that materially boost business value and engineering efficiency. Key features and usability improvements include robust device error handling in Config UI (#19267), sponsor token paste fix (#19456), persistence of product name while keeping device type (#19808), trimming string values (#20169), and poll-risk explanations (#20122). Forecast and solar data reliability was enhanced by publishing solar forecast only when a forecast exists (#19591), hiding forecast when not configured, and enabling solar tariff configuration in Config UI (#20079). Stability and quality were strengthened with end-to-end reliability improvements and Playwright stability work, including a charger/meter modal refactor (#20124) and broader stability improvements (#20035, #20140). The month also advanced tooling and UI polish through Storybook migration (#19780), npm dependency upgrades (#19725, #20136), and UI/UX refinements such as mobile layout improvements (#20007), aux icon rename to smartconsumer (#20217), and increased max current options (#20269).

February 2025

38 Commits • 18 Features

Feb 1, 2025

February 2025 (evcc-io/evcc) delivered notable UX and stability improvements across Loadpoint, Plan, Config, and Forecast areas, enabling clearer workflows, safer configurations, and enhanced forecasting. Implemented direct linking in Loadpoint UI, refined configuration UX with markdown help, priority, sort, and deprecation handling plus YAML-driven assets, and improved Plan UI and Forecast UI behavior. Addressed critical bugs in Config UI merge and session data completeness. Also performed dependency maintenance (Go i18n and npm) to boost stability and test reliability. These updates improve usability, data safety, and operational reliability, delivering clearer business value to users.

January 2025

19 Commits • 13 Features

Jan 1, 2025

January 2025 – Major UI and data-model improvements in evcc, focusing on reliability, configurability, and cross-provider integration. Key features include showing configured battery grid charge limits, loadpoints UI enhancements, planning improvements, and unified configuration UI state handling, complemented by energy flow tooltips for multi-battery contexts. Major fixes address tooltip reliability in Sessions, accurate statistics start dates, and browser-safe money formatting. Overall, these changes enhance user experience, data accuracy, and developer productivity, while enabling easier integration with energy providers and cleaner UI workflows.

December 2024

13 Commits • 8 Features

Dec 1, 2024

December 2024 (2024-12) monthly summary focusing on delivering high-impact features, reliability improvements, and security updates across the evcc repository. The month resulted in clearer energy insights, more robust recurring planning, a more responsive VehicleStatus UI, and a faster, more stable CI/testing pipeline, with maintained code quality and up-to-date tooling. Key features delivered: - Energy Flow Visualization Enhancements: improved handling of unknown power values and enhanced tooltip usability/accuracy in related charts and dashboards. - Repeating Charging Plans Support: added repeatingPlanning logic and safeguards to prevent premature deletion of repeating plans after planning completes. - VehicleStatus UI Refresh: improved wrap behavior and responsiveness for better display across screen sizes. - Loadpoint Planning Naming Consistency Refactor: standardized finish naming and improved consistency across planner logic. - Documentation and Code Quality Improvements: improved help text formatting, template capitalization consistency, and trailing whitespace cleanup; relevant docs updated. - Logging UI and Regex Improvements: more permissive log parsing and UI refinements for log level animation/opacity. - CI/Testing Infrastructure Enhancements: updated Playwright CI to use built-in Chrome and accelerated test reliability and speed. - Dependency Upgrades and Security: npm dependencies upgraded to improve security and tooling efficiency. Major bugs fixed: - Energy flow and unknown production handling improved to prevent misdisplay of values in charts. - Radar/tip related UI inconsistencies addressed; tooltip behavior stabilized. - Log parsing robustness improved for special characters in trace areas. - CI stability improvements addressing login reliability in Playwright tests. Overall impact and accomplishments: - Business value: clearer energy visualization enables better decision-making for energy usage and planning, improved reliability of recurring plans translates to fewer manual interventions, and more stable CI/testing reduces release risk. - Technical achievements: multiple feature deliveries with clean refactors, UI improvements across core dashboards, and strengthened development workflow through CI enhancements and dependency updates. Technologies/skills demonstrated: - Go-based EVCC core changes and feature work; TypeScript/Frontend considerations for UI refinements; Playwright-based CI improvements; npm package management for security; documentation and code hygiene improvements.

November 2024

17 Commits • 6 Features

Nov 1, 2024

November 2024 monthly performance summary for evcc: Delivered cross-cutting frontend and configuration improvements across browser compatibility, cost optimization, tariff configuration, security controls, and UI/Localization. Restored support for semi-legacy browsers, improved SmartCostLimit precision and step calculation, expanded tariff fields (formula, charges, tax) and better rate-matching error reporting, added a CLI flag to disable authentication for flexible safe-testing scenarios, and shipped extensive UI/Localization enhancements (durations, formatting, translations) along with a Solax template escaping fix. Completed dependency upgrades and lint/test improvements to speed development cycles, improving overall stability and developer velocity. Business impact includes higher user satisfaction across browsers, more accurate cost optimization, richer tariff configurability, and faster delivery with improved quality.

Activity

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Quality Metrics

Correctness91.2%
Maintainability89.0%
Architecture85.2%
Performance86.4%
AI Usage23.0%

Skills & Technologies

Programming Languages

BashCSSDockerfileGoHTMLJSONJavaScriptMakefileMarkdownSQL

Technical Skills

AI IntegrationAI Prompt EngineeringAI integrationAPI DesignAPI DevelopmentAPI IntegrationAPI MockingAPI SpecificationAPI designAPI developmentAPI integrationAsset ManagementAuthenticationBackend DevelopmentBackend development

Repositories Contributed To

1 repo

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

evcc-io/evcc

Nov 2024 Apr 2026
18 Months active

Languages Used

GoJavaScriptMarkdownShellTOMLTypeScriptVueVue.js

Technical Skills

AuthenticationBackend DevelopmentBackend developmentBrowser CompatibilityCLI developmentConfiguration