Release Highlights

• Improved implementations:
  • EWS Schönau Time-of-Use-Tariff
  • ENTSO-E Time-of-Use-Tariff: support for Lithuania
  • Hardy Barth Wallbox EVSE
  • State-of-Health-Cycle Controller
  • Timeslot PeakShaving "Hochlastzeitfenster" Controller
• UI improvements:
  • "Location validator" in UI System Profile
  • Standardise input of calendar events ("JSCalendar")

• Core improvements:
  • Modbus-Bridge improvements
  • EnergyScheduler v2
  • E-Mobility EVSE

Details

OpenEMS Edge

• Bridge Modbus: Fix task scheduling and simplify task handling by @timo-schlegel in https://github.com/OpenEMS/openems/pull/3547
• FEMS Backports 2026-02-18 in https://github.com/OpenEMS/openems/pull/3568
  • Hardy Barth: EVSE Implementation and Switch Architecture Commit
  • TimeOfUseTariff.Ews: migrate to Http-Bridge Commit
  • E-Mobility EVSE: Add Lost Line Commit
  • E-Mobility EVCS-to-EVSE: fix CanSwitchArchitecture for Systems that do not yet have READ_ONLY Commit
  • AppCenter: Add P30 EVSE to switch Commit
  • App Center EVSE: Switch with existing Vehicle Commit
  • EnergyScheduler v2: fix charging during DELAY_DISCHARGE Commit
  • EnergyScheduler v2 GoC: use MaximumGridFeedInLimit Commit
  • EnergyScheduler v2: improvements Commit
  • EnergyScheduler v2: improvements Commit
  • ChannelDoc: Add a way to set text dynamically Commit
  • EnergyScheduler v2: Plot GlobalOptimizationContext with JFreeChart Commit
  • EnergyScheduler v2 RunOptimizerApp: Plot SimulationResult with JFreeChart Commit
  • Edge2Edge: fix handling of hashes Commit
  • TimeOfUseTariff.ENTSO-E: add bidding zone Lithuania Commit
  • Controller.Ess.SoH.Cycle: improving balancing logic and add more channels Commit
  • Controller.Ess.SoH.Cycle: IsRunning instead of mode Property Commit
  • App.Ess.SohCycle: set dependency for FENECON Home & Commercial Commit
  • App.Ess.SohCycle: SoH Cycle App Commit
  • IO.Fenecon.MasterBox2V0.Relay: Implemented Commit
  • App.Prediction.Default: add new app "Default Prediction" Commit

OpenEMS UI

• EnergyMonitor: Update arrows by @da-Kai in https://github.com/OpenEMS/openems/pull/3375
• Single Threshold: Add unit labels by @sthhs in https://github.com/OpenEMS/openems/pull/3515
• Header: Fix title disappear from the header on first load. by @Jasonlee6789 in https://github.com/OpenEMS/openems/pull/3569
• FEMS Backports 2026-02-18 in https://github.com/OpenEMS/openems/pull/3568
  • JSCalendar: refactor Commit
  • "Location validator" section in Profile Commit
  • E-Mobility EVSE: Prevent vehicle-id Error from showing outside the vehicle settings Commit
  • E-Mobility EVSE: Fix for app center vehicles Commit
  • E-Mobility EVSE: Fix car update Commit
  • Timeslot PeakShaving: fix string to number conversion Commit
  • Accessibility: Implement wcag 1.4.4 Commit
  • Set fixed version for angular/cdk Commit
  • Replaced outdated links and added language placeholder Commit
  • Offline + Time-of-Use new icon Commit
  • Fix rerouting for non admins Commit
  • Reduce GetEdgesRequests Commit
  • Websocket.ts: add missing promise reject callback Commit
  • Adjustments for Manual Commit

OpenEMS Backend

• FEMS Backports 2026-02-18 in https://github.com/OpenEMS/openems/pull/3568
  • BackendEdge: Update readme + create new gradle tasks Commit
  • Backend-Edge-Manager: Gradle and Docker builds Commit

Common/General

• Docker: Fix builds by @da-Kai in https://github.com/OpenEMS/openems/pull/3563
• Intellij + Gradle: Setup Guide by @alexbelkedev in https://github.com/OpenEMS/openems/pull/3554
• FEMS Backports 2026-02-18 in https://github.com/OpenEMS/openems/pull/3568
  • Update Docker Commit
  • App Center: Fix Keba Toggle Switch Errors Commit
  • Java-WebSocket Wrapper: include JavaDoc Commit
  • Gradle: lazy configuration for all tasks Commit

Version Upgrades

• Bump org.jetbrains.kotlin:kotlin-osgi-bundle from 2.3.0 to 2.3.10 in /cnf by @dependabot[bot] in https://github.com/OpenEMS/openems/pull/3560
• Bump com.auth0:auth0 from 3.0.0 to 3.1.0 in /cnf in the auth0 group by @dependabot[bot] in https://github.com/OpenEMS/openems/pull/3559
• Bump the pax-logging group in /cnf with 2 updates by @dependabot[bot] in https://github.com/OpenEMS/openems/pull/3558
• Bump com.auth0:auth0 from 3.1.0 to 3.2.0 in /cnf in the auth0 group by @dependabot[bot] in https://github.com/OpenEMS/openems/pull/3564
• Bump org.postgresql:postgresql from 42.7.9 to 42.7.10 in /cnf by @dependabot[bot] in https://github.com/OpenEMS/openems/pull/3565
• Bump org.junit.jupiter:junit-jupiter-api from 6.0.2 to 6.0.3 in /cnf by @dependabot[bot] in https://github.com/OpenEMS/openems/pull/3580
• Bump org.postgresql:postgresql from 42.7.9 to 42.7.10 in /cnf by @dependabot[bot] in https://github.com/OpenEMS/openems/pull/3579
• Bump net.bytebuddy:byte-buddy from 1.18.4 to 1.18.5 in /cnf by @dependabot[bot] in https://github.com/OpenEMS/openems/pull/3578
• Bump org.jetbrains.kotlin:kotlin-osgi-bundle from 2.3.0 to 2.3.10 in /cnf by @dependabot[bot] in https://github.com/OpenEMS/openems/pull/3576
• Bump com.auth0:java-jwt from 4.5.0 to 4.5.1 in /cnf in the auth0 group by @dependabot[bot] in https://github.com/OpenEMS/openems/pull/3575
• Bump the pax-logging group in /cnf with 2 updates by @dependabot[bot] in https://github.com/OpenEMS/openems/pull/3574
• Bump qs from 6.14.1 to 6.14.2 in /ui by @dependabot[bot] in https://github.com/OpenEMS/openems/pull/3567
• Bump @modelcontextprotocol/sdk and @angular/cli in /ui by @dependabot[bot] in https://github.com/OpenEMS/openems/pull/3556
• Bump swiper from 12.0.3 to 12.1.2 in /ui by @dependabot[bot] in https://github.com/OpenEMS/openems/pull/3582
• Bump webpack and @angular-devkit/build-angular in /ui by @dependabot[bot] in https://github.com/OpenEMS/openems/pull/3557

New Contributors

• @timo-schlegel made their first contribution in https://github.com/OpenEMS/openems/pull/3547
• @alexbelkedev made their first contribution in https://github.com/OpenEMS/openems/pull/3554

Full Changelog: https://github.com/OpenEMS/openems/compare/2026.2.0...2026.3.0