2026.8.0

Release Highlights

• New implementations:
  • Bitcoin Miners with Braiins OS
  • Fix-Reactive-Power App
  • App for German EEG 2025 (avoid feed-in during negative spot prices)
• Improved implementations:
  • ENTSO-E
  • Fix-Active-Power Controller and UI
  • Askoma Electric Heater
  • my-PV Electric Heater
  • Mennekes Wallbox
  • Hardy Barth Wallbox
  • FENECON Home, Commercial 50, Commercial 100, Commercial 92, Hybrid 10, 9-10, GW & Mini
  • Siemens Meter
  • ESS Grid-Optimized-Charge Controller
  • SG Ready Heat-Pump
  • Victron
  • Simulator for EVSE ChargePoint
  • REFU Battery Inverter
  • KACO Battery Inverter
  • Clever PV
  • SOCOMEC Modbus/TCP Meter
• UI improvements:
  • Set ENGLISH as fallback language
  • New-UI improvements
• Core improvements:
  • Modbus Bridge
  • Power Distribution for ESS Cluster
  • Energy Scheduler v2
  • Apply prettier formatting for UI
  • Update to Angular 22
  • Improve IntelliJ compatibility
  • Integrate AI review & vibe coding skills

Details

OpenEMS Edge

• FEMS Backports 2026-07-06 in #3814
  • [Edge] Modbus-Bridge: add optional delay between unit id changes Commit
  • [Edge] Document the Power Distribution Commit
  • [Edge] Fix Reactive Power App Commit
  • [Edge] ENTSO-E: only use position 1 for Germany+Austria Commit
  • [Edge] FixActivePower: extend Controller capabilities Commit
  • [Edge] Askoma Heat: integration with Energy Schedule Commit
  • [Edge] Implement Braiins OS meter Commit
  • [Edge] E-Mobility: Mennekes Phase-Switch Commit
  • [Edge] New Grid Optimized Charge Commit
  • [Edge] my-PV writable Commit
  • [Edge] Reset UpdateHandlerTests.java Commit
  • [Edge] FENECON Commercial 92 App: Set Ramp Ess Protection Commit
  • [Edge] OpenemsComponent: add nullable method to get channel Commit
  • [Edge] ReferenceTarget: take default value if property isnt provided in config Commit
  • [Edge] Mennekes improvements Commit
  • [Edge] ManagedSymmetricEss Modbus-Table: expose AvailableChargeEnergy and AvailableDischargeEnergy Commit
  • [Edge] Fix-Active-Power-Controller: add Energy Scheduler v2 support for ONCE-Modes Commit
  • [Edge] BraiinsOS: add JUnit tests Commit
  • [Edge] FENECON Hybrid 10, 9-10, GW & Mini: add missing App properties Commit
  • [Edge] App Center: Siemens Meter app Commit
  • [Edge] GridOptimizedCharge: avoid warnings in combination with Time-of-Use-Ctrl Commit
  • [Edge] Energy Scheduler v2 Integration: Braiins BTC Miner Commit
  • [Edge] Masterbox: mplement GPIO with State Led Commit
  • [Edge] Power Distribution v2: improve reactive power Commit
  • [Edge] MasterBox: implement Modbus Slave Table Commit
  • [Edge] Mennekes App Release Commit
  • [Edge] App-Center: EnergyScheduler Version Task Commit
  • [Edge] Energy getSchedule-Request improvements Commit
  • [Edge] Fix reset of accumulated channels after system restart Commit
  • [Edge] Battery.Fenecon.Home: Fix serial number prefix Commit
  • [Edge] App.FENECON.Commercial.100: VDE4110 GridCode Commit
  • [Edge] App.TimeOfUseTariff: compatibility with FENECON Commercial 100 + EWS Schönau Commit
  • [Edge] App.Tariff.Manual.EEG2025.GridSell: App for German EEG 2025 Commit
  • [Edge] App Center EVCS/EVSE: Required App Version Commit
  • [Edge] Energy getSchedule-Request: add _sum/EssSoc Commit
  • [Edge] Add AppSafetyCountry mapping and Lithuania EN50549 support Commit
  • [Edge] Refactor ESS protection with selectable ramp/voltage modes Commit
  • [Edge] Add MasterBox2v0 and CM4S Gen3 hardware app integration Commit
  • [Edge] Energy Scheduler v2: Add custom constraints to Fitness Commit
  • [Edge] Energy Scheduler v2: Add evaluation step to simulation Commit
  • [Edge] Energy Scheduler v2: Add new hyperparameters Commit
  • [Edge] Energy GetSchedule: round from down to quarter Commit
  • [UI/Edge] Controller.Io.HeatPump.SgReady: add optional meter Commit
  • [Edge/UI] STS-Box: Adjustments to GenSet properties Commit
  • [Edge|Backend] App.Tariff.Manual.EEG2025.GridSell: installable as free App Commit
• [Edge] Update readme.adoc: added link to referenced source code files by @sjjh in #3817
• [Edge] io.openems.edge.victron: keep configured capacity when BMS reports 0 by @jankaifer in #3808
• [Edge] ElectricityMeter: avoid divide-by-zero by @tsicking in #3777
• [Edge] io.openems.edge.victron: drop all write tasks in Read-Only-Mode by @jankaifer in #3807
• [Edge] ENTSO-E: add mathematical expression by @sfeilmeier in #3699
• [Edge] Update readme.adoc: list formating by @sjjh in #3845
• FEMS Backports 2026-07-15 in #3825
  • [Edge] AbstractWorker: performance fixes Commit
  • [Edge] DependencyUtil: fix potential memory leak Commit
  • [Edge] Energy Scheduler v2: improve Optimizer threads Commit
  • [Edge] AppValidateWorker: fix NPE Commit
  • [Edge] App Core Meta: fix translation Commit
  • [Edge] Tariff.Manual.EEG2025.GridSell: fix unit of fixedGridSellPrice Commit
  • [Edge] Simulator.Evse.ChargePoint: added simulator for EVSE ChargePoint Commit
  • [Edge] FENECON Home: fix wrong configuration of the RS485 interface port [Commit](htt...

2026.7.0

This is a pure maintenance release.

Details

Common/General

• Update readme.adoc: improved formating by @sjjh in #3786
• Update docker.adoc: link optimization by @sjjh in #3785
• Update systemd.adoc: updated jar filename by @sjjh in #3768
• Update readme.adoc: improved formatting by @sjjh in #3764

Version Upgrades

• Bump actions/cache from 5 to 6 in /.github/workflows by @dependabot[bot] in #3791
• Bump com.auth0:auth0 from 3.7.0 to 3.8.0 in /cnf in the auth0 group by @dependabot[bot] in #3772
• Bump the squareup group in /cnf with 2 updates by @dependabot[bot] in #3770
• Bump codecov/codecov-action from 6 to 7 in /.github/workflows by @dependabot[bot] in #3771
• Update Gradle to 9.6.1 by @sfeilmeier in #3801
• Bump biz.aQute.bnd:biz.aQute.bnd.gradle from 7.2.3 to 7.3.0 in /cnf by @dependabot[bot] in #3762
• Bump org.apache.felix:org.apache.felix.http.jetty12 from 1.1.10 to 2.0.0 in /cnf by @dependabot[bot] in #3761
• Bump actions/checkout from 6 to 7 in /.github/workflows by @dependabot[bot] in #3787
• Bump the fastexcel group in /cnf with 2 updates by @dependabot[bot] in #3769

Full Changelog: 2026.6.0...2026.7.0

2026.6.0

Release Highlights

• Improved implementations:
  • OpenDTU
  • Huawei PV-Inverter & PV-Inverter
  • SolarEdge ESS PV hybrid inverters
  • CHINT DDSU666 & DTSU666 meter
  • SOCOMEC e47/48 meter
  • KACO Battery Inverter
  • FENECON Energy Storage Systems
  • IO Weidmueller UR20
  • Hardy Barth Wallbox
  • Askoma Heating Element
  • Swisspower Time-Of-Use-Tariff
  • Controller ESS Limit Total Discharge
  • Controller ESS Prepare Battery Extension
  • Controller Api Modbus
• UI improvements:
  • Work on New UI Navigation project ("NUI")
• Core improvements:
  • Add support for Grid-Sell Prices
  • Continued update of JUnit tests to Jupiter
  • Improvements to EnergyScheduler v2
  • Better support for IntelliJ IDEA
  • Add AI agent instructions and Skills

Details

OpenEMS Edge

• Implement OpenDTU meter by @sthhs in #3562
• ESS Limit Total Discharge – handle Hybrid ESS by @timo-schlegel in #3640
• Huawei Smart Logger and PV Inverter by @DerStoecki in #3545
• Huawei PV-Inverter: Code cleanup by @sfeilmeier in #3710
• OpenDTU Meter: Clean up code and implement ManagedSymmetricPvInverter by @sthhs in #3709
• Add support for SolarEdge ESS PV hybrid inverters by @timo-schlegel in #3571
• Adding edge meter package for chint ddsu666 by @ramaguruprakash in #3692
• Implmenet socomec e47/48 by @Sn0w3y in #3388
• Add DTSU666 support to Chint meter bundle by @tushabe in #3728
• Controller Api Modbus: Fix Modify Method by @tsicking in #3743
• Fix(Edge) Kaco BatteryInverter Sunspec Model Frequency: Unit by @TimStoecker in #3735
• FEMS Backports 2026-05-01 in #3708
  • [Edge] App Center: automatically updating config with dependencies Commit
  • [Edge] Controller.Ess.PrepareBatteryExtension: add status info while in reference cycle Commit
  • [Edge] IO.Weidmueller.UR20: Refactor module handling and dynamic channel management Commit
  • [Edge] App.Evcs.IesKeywatt: installable for Admin only Commit
  • [Edge] GoodWe: Add Warning State whenever the GridMode becomes Undefined Commit
  • [Edge] Hardy Barth Wallbox: Use different limit set method Commit
  • [Edge] Energy Scheduler v2: Add Grid-Sell Prices Commit
  • [Edge] Evse.ChargePoint.Mennekes: change SetPoint to Watt Commit
  • [Edge] IOC.Fenecon.MasterBox Commit
  • [Edge] Heat.Askoma: schedule modes with JSCalendar Commit
  • [Edge] QuarterlyValues: fix NPE in toString-Method Commit
  • [Edge] Core.Sum: Optimizations Commit
  • [Edge] TimeOfUseTariff.Swisspower: update API url Commit
  • [Edge] GoodWe: fix internal filter limits for DC setpoint Commit
• FEMS Backports 2026-05-15 in #3729
  • [Edge] GenerateTargetsFromReferences: improve docs Commit
  • [Edge] Controller.Ess.PrepareBatteryExtension: fix capacity expansion reference cycle got stuck Commit
  • [Edge] Energy Component: implement JsonRpc GetSchedule Commit
  • [Edge] Core.Energy Simulator: shift prices to avoid misbehaviour with negative prices Commit
  • [Edge] FENECON Commercial 92 App: fix meter dependency Commit
  • [Edge] EnergyScheduler v2: Fitness Refactoring Commit
  • [Edge] Add new unit types and test helper methods Commit
  • [Edge] GoodWe.Grid-Meter: read serial number Commit
  • [Edge] Implement battery firmware update and enhance protection logic Commit
  • [Edge] App Center: systemd network settings via App Commit
  • [Edge] Ess.Generic.ManagedSymmetric: Add ess fault due to battery/inverter faults Commit

OpenEMS UI

• FEMS Backports 2026-05-01 in #3708
  • [UI] NUI: refactor heating element Commit
  • [UI] fix screenorientation not available Commit
  • [UI] EVSE App Center: add link to create Vehicle App Commit
  • [UI] Evse.ChargePoint.Mennekes: add chargepoint image Commit
  • [UI] NUI: Controller.Ess.FixActivePower Commit
  • [UI] add sumstate to every page Commit
  • [UI] Lock rotation on mobile and Tablet Commit
  • [UI] NUI: refactor time of use tariff Commit
• FEMS Backports 2026-05-15 in #3729
  • [UI] Fix Heatingelement history not showing Commit
  • [UI] Remove extra value in grid modal (new and old UI) Commit
  • [UI] Update android.compileSdkVersion Commit
  • [UI] Refactor Storage Commit
  • [UI] fix wrong title for App Center Commit
  • [UI] Askoma Heat Commit
  • [UI] NUI: Controller.ChannelThreshold Commit

OpenEMS Backend

• FEMS Backports 2026-05-01 in #3708
  • [Backend] User Settings of type JsonObject or String Commit
• FEMS Backports 2026-05-15 in #3729
  • [Backend] Alerting: Update JUnit tests Commit

Common/General

• Add documentation for running the prebuilt UI to the Getting Started guide by @mzenker in #3702
• Fix link to GermanDSO.java in timeofusetariff.entsoe/readme.adoc by @janklostermann in #3713
• Update modbus device template to new reference target system by @simon-lgb in #3717
• fix documentation structure and links for UI. by @mzenker in #3712
• FEMS Backports 2026-05-01 in #3708
  • [Common] CI: Add sonarqube scans Commit
  • [Common] CI: update sonarqube and gradle Commit
  • [Common] Tools: fix build-debian-package script if git repo is dirty Commit
• FEMS Backports 2026-05-15 in #3729
  • [Common] IntelliJ IDEA run configurations [Commit](https://githu...

2026.5.0

Release Highlights

• We celebrated 10 years of OpenEMS since the first hello-world commit
  • See blog post on https://openems.io/2026/04/24/10-years-of-openems/
  • Discuss at https://community.openems.io/t/10-years-of-openems/10828
• Improved implementations:
  • Mennekes Wallbox
  • FENECON Commercial 92 Cluster
  • FENECON Commercial 100
  • FENECON Mini
  • KACO Battery-Inverter
  • ASKOMA Heating Element
  • Shelly
• UI improvements:
  • New tree-based navigation is shaping
  • Localization for OEM distribution changelog
• Core improvements:
  • There is a new way to manage OSGi References by Component-ID. See Commit
  • Websocket ClientReconnectorWorker: circumvent possible deadlock Commit

Details

OpenEMS Edge

• FEMS Backports 2026-04-04 by @fenecon in #3667
  • [Edge] Simplify OSGi Reference by Component-ID: replace updateReferenceFilter Commit
  • [Edge] Websocket ClientReconnectorWorker: circumvent possible deadlock Commit
  • [Edge] JSCalendar: enforce an explicit Clock Commit
  • [Edge] Use TariffManager in Sum Commit
  • [Edge] Add Reference Cycle Support to Planned Battery Extension Commit
  • [Edge] GlobalOptimizationContext: fix possible NPE for no prices Commit
  • [Edge] JSCalendar: fix timezone handling Commit
  • [Edge] FENECON Commercial 100: App fix for always creating STS-Box Commit
  • [Edge] FENECON Commercial 100: Fix App for GenSet Commit
• FEMS Backports 2026-04-19 by @fenecon in #3688
  • [Edge] CycleWorker: measure execution times Commit
  • [Edge] FENECON Mini: implement App Commit
  • [Edge] EVSE: add Consumption to Excel export Commit
  • [Edge] Add documentation for EVSE Commit
  • [Edge] KACO Battery-Inverter: add ErrorRestartBehaviourConfig Commit
  • [Edge] Add Annotation for Config Channel Persistence Priority Commit
  • [Edge] [Debian] Store special log files for firmware updates in /var/log/openems Commit
  • [Edge] App.Heat.Askoma Write Commit
  • [Edge] PT1-Filter: fix apply low/high limits Commit
  • [Edge] ManagedSymmetricEss: improve how filter is applied Commit
  • [Edge] Mennekes EVSE: Cleanup isReadyForCharging handling Commit
  • [Edge] Commercial 92 Cluster: set default power strategy Commit
  • [Edge] App.Meter.Shelly.Meter: allow installation for owner Commit
  • [Edge] GridOptimizedCharge: Apply no limit when the grid feed-in limit is almost zero Commit
  • [Edge] Add Grid-Sell-Price to SumImpl Commit
  • [Edge] Migrate JUnit test cases Commit
  • [Edge] Goodwe update fixes Commit
  • [Edge] Extend ManagedSymmetricEss Modbus List by actual power value channels Commit
• [Edge] Controller.Evcs: fix awaitLastChanges checking INCREASING twice instead of DECREASING by @rishabhvaish in #3668

OpenEMS UI

• FEMS Backports 2026-04-04 by @fenecon in #3667
  • [UI] Fix system overview for installer accounts Commit
  • [UI] NUI: fix recreating new navigation nodes after empty navigationtree Commit
  • [UI] add missing channel subscribe for emergency reserve controller Commit
  • [UI] fix get edges infinite scroll list Commit
  • [UI] EVCS Read-Only: fix modal Commit
  • [UI] fix chartheight Commit
• FEMS Backports 2026-04-19 by @fenecon in #3688
  • [UI] Fix NumberUtils.divideSafely() Commit
  • [UI] various cleanups Commit
  • [UI] Adjust confirm button position on mobile Commit
  • [UI] General Improvements Commit
  • [UI] NUI: grid optimized charge Commit
  • [UI] JSCalendar: show tasks with no recurrenceRule Commit
  • [UI] GridOptimizedCharge: Visualisation for the new state Commit
  • [UI] fix heatpump history Commit
  • [UI] NUI: Refactor Heat Commit
  • [UI] Localization for changelog Commit
  • [UI] NUI: Improve new Widget navigation and fix help key Commit
  • [UI] Darkmode description colors Commit
  • [UI] fix history values Commit

OpenEMS Backend

• FEMS Backports 2026-04-19 by @fenecon in #3688
  • [Backend] Metadata.Odoo: configurable login user Commit
• Backend WebsocketServer: Reject invalid Apikey at handshake by @da-Kai in #3700

Common/General

• FEMS Backports 2026-04-04 by @fenecon in #3667
  • [Common] Gradle: avoid Mockito warning Commit
• Docker: Add attestations and sbom by @da-Kai in #3675
• Update setup-ide.adoc: removed consollino UI by @sjjh in #3690
• Update readme.adoc: typo by @sjjh in #3701

Version Upgrades

• Bump the bytebuddy group in /cnf with 2 updates by @dependabot[bot] in #3665
• Bump pygments from 2.19.2 to 2.20.0 in /tools/integration_tests by @dependabot[bot] in #3662
• Bump codecov/codecov-action from 5 to 6 in /.github/workflows by @dependabot[bot] in #3656
• Bump com.auth0:auth0 from 3.3.0 to 3.4.0 in /cnf in the auth0 group by @dependabot[bot] in #3673
• Bump io.openems:j2mod from 3.3.0-openems.1 to 3.3.0-openems.2 in /cnf by @dependabot[bot] in #3683
• Bump com.google.guava:guava from 33.5.0-jre to 33.6.0-jre in /cnf in the guava group by @dependabot[bot] in #3682
• Bump org.apache.felix:org.apache.felix.scr from 2....

2026.4.0

Release Highlights

• Improved implementations:
  • Victron
  • Shelly
  • FENECON Home 6, 10 & 15, Commercial 50, 92 & 100
  • RRD4j
  • Hardy Barth
  • Mennekes
  • Controller.IO.ChannelSingleThreshold
  • Bosch.BPTS5Hybrid:
• UI improvements:
  • New tree-based navigation is shaping
  • Time-of-Use-Tariff: support for Peak-Shaving mode
• Documentation improvements:
  • Improved Device & Service documentation and Docs navigation; example: https://openems.github.io/openems.io/openems/latest/edge/device_service.d/io.openems.edge.meter.carlo.gavazzi.html
  • Updated IntelliJ IDEA guide
• Core improvements:
  • For Energy Storage Systems
    • PID- and PT1-Filter improvements
    • ESS.Power: faster Power Distribution v2
  • E-Mobility new architecture (EVSE)
  • Central location for grid buy & sell limits
  • TariffManager prepares for grid buy & grid sell tariffs
  • Support for grid-forming GenSet (as supported by FENECON Commercial 50 and 100)

Details

OpenEMS Edge

• Victron ESS: Refactor AC-in setpoint calculation by @Sn0w3y in #3584
• Bosch.BPTS5Hybrid: Update Jetty by @Sn0w3y in #3647
• FEMS Backports 2026-03-21 by @fenecon in #3624
  • Shelly Pro 3EM: implement App Commit
  • Shelly: add support for more devices Commit
  • ManagedSymmetricEss/GoodWe: refactor how (PID-)filter is applied Commit
  • EVSE Electric Vehicle: add configurable battery capacity Commit
  • Ess.Power: distribution prepare for different handlers Commit
  • FEMS App EWS Schönau: public release Commit
  • Meta: add gridBuyHardLimit() and gridSellHardLimit() Commit
  • Meta: improve Grid-Buy-Soft-Limit Commit
  • Add new TariffManager Commit
  • Add Time-of-Use Feed-In Tariffs Commit
  • ENTSO-E: refactor + prepare fetch via Backend Commit
  • FENECON Commercial 50/100: Genset Component Commit
  • Cycle Worker: add Log Verbosity Commit
  • Meta: Refactor Grid-Feed-In-Limit Commit
  • Vehicle: Add Battery Capacity to component config Commit
  • Vehicle: Add Battery Capacity to App and Switch Commit
  • JSCalendar: fix problem with two overlapping fallback tasks Commit
  • Managed(As|S)ymmetricEss cleanup Commit
  • _Property-Channels: fix duplicated channels of component in same bundle Commit
  • handleExecuteSystemCommandRequest for Docker Commit
  • ModbusTcp: fix timeout config Commit
  • App Center: App for FENECON Pro Hybrid 9-10 Commit
  • FENECON Commercial 100: Add GoodWe 100 Type Commit
  • Energy Scheduler v2: Model production curtailment in EnergyFlow Commit
  • Commercial 92 Cluster (Master): set default power strategy Commit
  • App Center: Vehicle fix install always Commit
  • RRD4j: improve handling of unused files Commit
  • GoodWe and Kdk Grid-Meter Apps Commit
  • FENECON Commercial 50 VDE4110 Commit
  • App Center: fix scheduler order for switch EVSE/EVCS Commit
  • App Center: improve switching between EVCS and EVSE Commit
  • Hardy Barth: fix properties of second charge point Commit
  • EVSE: improve calculation of combined abilities Commit
  • Meta MaximumGridFeedInLimit & HardyBarth NPE Commit
  • EVSE Switch App: synchronize Apps with Backend after Fallback Commit
  • FENECON Home 6,10 (Gen2) & 15: "dynamischer Rundsteuerempfänger" Commit
• Controller.IO.ChannelSingleThreshold: add configurable fallback for undefined state by @janklostermann in #3646
• Controller.Ess.GridOptimizedCharge: fix IndexOutOfBoundsException in DelayCharge.calculateAvailEnergy by @rishabhvaish in #3645
• Add ManagedEvcsCluster, make ESS optional, configurable guaranteed charge power by @chpoulter in #3084
• Bosch.BPTS5Hybrid: refactor to HttpBridge by @Sn0w3y in #3650
• Victron: fix link to source code in readme.adoc by @janklostermann in #3630
• FEMS Backports 2026-03-28 by @fenecon in #3660
  • Ess.Power: add tree map solver to PowerDistribution v2 Commit
  • EVSE Mennekes: Improvements Commit
  • AppCenter: i18n for links Commit
  • FENECON Commercial 92: enable deinstallation of SelfConsumptionOptimization Commit
  • App.Evcs.HardyBarth: use Correct Alias for second CP Commit
  • Mennekes EVSE Implementation Commit
  • FENECON Commercial 50/100: Genset bugfixes Commit

OpenEMS UI

• Local UI: Use browser Language as Default by @da-Kai in #3415
• AppComponent: fix missing onActivate method (#3591) by @rishabhvaish in #3597
• FEMS Backports 2026-03-21 by @fenecon in #3624
  • New Navigation: desktop tree view Commit
  • EVSE: show charge power Commit
  • SoH Cycle Controller: show ESS Modal Commit
  • Time-of-Use-Tariff: show Peak-Shaving mode [Commit](https://github.com/OpenEMS/openems/commit/
    cf62ec6)
  • Add support for JSCalendar Scheduler Commit
  • NUI: align tree view to top Commit
  • NUI: Refactor production Commit
  • SoH-Controller: fix channel subscribe Commit
  • fix subscribe bug Commit
  • Fix missing User.language Commit
  • remove duplicated evcss in consumption [Commit](https://github.com/OpenEMS/op...

2026.3.0

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 #3547
• FEMS Backports 2026-02-18 in #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 #3375
• Single Threshold: Add unit labels by @sthhs in #3515
• Header: Fix title disappear from the header on first load. by @Jasonlee6789 in #3569
• FEMS Backports 2026-02-18 in #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 #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 #3563
• Intellij + Gradle: Setup Guide by @alexbelkedev in #3554
• FEMS Backports 2026-02-18 in #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 #3560
• Bump com.auth0:auth0 from 3.0.0 to 3.1.0 in /cnf in the auth0 group by @dependabot[bot] in #3559
• Bump the pax-logging group in /cnf with 2 updates by @dependabot[bot] in #3558
• Bump com.auth0:auth0 from 3.1.0 to 3.2.0 in /cnf in the auth0 group by @dependabot[bot] in #3564
• Bump org.postgresql:postgresql from 42.7.9 to 42.7.10 in /cnf by @dependabot[bot] in #3565
• Bump org.junit.jupiter:junit-jupiter-api from 6.0.2 to 6.0.3 in /cnf by @dependabot[bot] in #3580
• Bump org.postgresql:postgresql from 42.7.9 to 42.7.10 in /cnf by @dependabot[bot] in #3579
• Bump net.bytebuddy:byte-buddy from 1.18.4 to 1.18.5 in /cnf by @dependabot[bot] in #3578
• Bump org.jetbrains.kotlin:kotlin-osgi-bundle from 2.3.0 to 2.3.10 in /cnf by @dependabot[bot] in #3576
• Bump com.auth0:java-jwt from 4.5.0 to 4.5.1 in /cnf in the auth0 group by @dependabot[bot] in #3575
• Bump the pax-logging group in /cnf with 2 updates by @dependabot[bot] in #3574
• Bump qs from 6.14.1 to 6.14.2 in /ui by @dependabot[bot] in #3567
• Bump @modelcontextprotocol/sdk and @angular/cli in /ui by @dependabot[bot] in #3556
• Bump swiper from 12.0.3 to 12.1.2 in /ui by @dependabot[bot] in #3582
• Bump webpack and @angular-devkit/build-angular in /ui by @dependabot[bot] in #3557

New Contributors

• @timo-schlegel made their first contribution in #3547
• @alexbelkedev made their first contribution in #3554

Full Changelog: 2026.2.0...2026.3.0

2026.2.0

NOTE: This release includes large changes to the OpenEMS Backend authentication flow to Odoo and KeyCloak. These changes are not yet included in the OpenEMS-Odoo-Addon and the Docker-Compose setups. For now it is recommended to use older OpenEMS Backend (namely 2026.1.0) to prevent problems and cyber security risks.

Release Highlights

• New implementations:
  • Janitza UMG806 (via UMG604 Master)
  • Hager ECR380D
• Improved implementations:
  • Shelly IOs
  • Edge-2-Edge
  • Single-Threshold-Controller
  • Kostal Piko
• UI improvements:
  • Better visualization on small screens (like a Tablet)
  • Improved Pull-to-Refresh
• Backend improvements:
  • Split services to multiple servers - allows load-balancing Edge connections
  • OAuth authentication via KeyCloak (and Odoo)
• Core improvements:
  • Integration-Tests framework (in python)
  • ESS distribution strategy "Optimize by keeping all near equal"
  • Improvements to EVSE E-Mobility Architecture, Energy Scheduler v2 and JSCalendar
  • Grid-Buy-Soft-Limit (specifically for Sweden)

Details

OpenEMS Edge

• Add support for Janitza UMG806 (via UMG604 Master) by @schiegg in #3449

• [Edge] Meter.Janitza.UMG806: cleanup after #3449 by @sfeilmeier in #3502

• Shelly Firmware: Check if stable version update is present by @sthhs in #3517

• Edge2Edge: filter undefined integer modbus values by @tcdrop in #3479

• Fix: Handle undefined SOC in solver strategy "Optimize by keeping all near equal" by @tsicking in #3516

• ControllerIoChannelSingleThresholdImpl.java: Changed inputChannel fro… by @sjjh in #3510

• Kostal Piko inverter: Corrected dayYield from kWh to Wh + Units of totalYield and dayYield by @sjjh in #3538

• New energy meter of type Hager ECR380D by @hrohmer in #3336

• FEMS Backports 2026-01-15 by FENECON in #3518

  • [Edge] Evse.Controller: implement "Minimum-with-Surplus" mode Commit
  • [Edge] App.Prediction.Weather: add components aliases Commit
  • [Edge] HTTP Bridge: improvements Commit
  • [Edge] JSCalendar: improvements Commit
  • [Edge] Battery.Fenecon.Home: update register types from INTEGER to LONG for energy channels Commit
  • [Edge] Evse.Controller: implement "Minimum-with-Surplus" mode Commit
  • [Edge] EnergyScheduler v2: Fix regular optimization schedule Commit
  • [Edge] JSCalendar: implement MONTHLY recurrence Commit
  • [Edge] BatteryProtection: support dynamic ForceCharge/Discharge current Commit
  • [Edge] XmlUtils: activate SECURE_PROCESSING feature Commit
  • [Edge] FENECON Commercial 100 App Commit
  • [Edge] JSCalendarApi: fix error Commit
  • [Edge] App.System.Fenecon.Home: Remove relay validation Commit
  • [Edge] EnergyScheduler v2 improvements Commit
  • [Edge] Move JSCalendar JSONRPC API-Routes to common Commit
  • [Edge] EnergyScheduler v2 improvements Commit
  • [Edge] QuarterlyValues: use Instant instead of ZonedDateTime Commit
  • [Edge] EnergyScheduler v2 improvements Commit
  • [Edge] Battery.Fenecon.Home: add registers Commit
  • [Edge] EnergyScheduler & TimeOfUseTariffController: resolve cyclic dependencies Commit
  • [Edge] EnergyScheduler: Add generations counter Commit

• FEMS Backports 2026-01-24 by FENECON in #3540

  • [Edge] ESHv2: fix possible NPE Commit
  • [Edge] ESHv2 Time-of-Use-Tariff Ctrl DELAY_DISCHARGE fix charge from AC Commit
  • [Edge] Predictors: Implement better logging Commit
  • [Edge] Controller.Ess.SoH.Cycle: Implement State-of-Health Cycle Controller Commit
  • [Edge] JSCalendar: implement nthOfPeriod for monthly byDay Commit
  • [Edge] Implement Grid-Buy-Soft-Limit in _meta (2) Commit
  • [Edge] App.FENECON.Home*: Bugfix for LED Commit
  • [Edge] Implement Grid-Buy-Soft-Limit in _meta Commit
  • [Edge] JSCalendar: Add Api-Routes to existing Components Commit
  • [Edge] FENECON 100 battery inverter: add type Commit
  • [Edge] Battery.Fenecon.Home: fix register names Commit

OpenEMS UI

• Adjust large screen widget size based on nav position by @Sn0w3y in #3354
• Fix: Pull-to-Refresh not working by @Sn0w3y in #3531
• [UI] Use Angular property binding for SVG fill attribute by @sfeilmeier in #3542
• Fixed copy-paste bug - was subWeeks instead of subMonths/subYears by @Sn0w3y in #3541
• FEMS Backports 2026-01-15 by FENECON in #3518
  • [UI] formly-range-type: set default value Commit
  • [UI] IBN: add configuration for alerting Commit
  • [UI] Add validator for first- and last-name fields Commit
  • [UI] eslint-rule json-no-duplicate-keys Commit
  • [UI] App Center: fix display of registered keys Commit
  • [UI] fix redirects Commit
  • [UI] improve oauth flow Commit
  • [UI] Fix user back button Commit
  • [UI] Settings | Systemlog: fix toggle Commit
  • [UI] OAuth for android app Commit
  • [UI] OAuth implementation Commit
  • [UI] Spinner for excel export Commit
• FEMS Backports 2026-01-24 by FENECON in #3540
  • [UI] Fixed style issue with formly serial number fields. Commit
  • [UI] EVSE: Only show Phase-Switch for KEBA P40 Commit
  • [UI] fix channels subscribe Commit
  • [UI] Fixes for mobile UI Commit
  • [UI] fix for missing sum state on live page ...

2026.1.0

Release Highlights

• New implementations: Victron, OpenWB, Janitza UMG801, SMA STP-10.0 SE Hybrid, SDM72D-M-2 meter, MQTT Bridge
• Improvements: Controller Timeslot Peakshaving, Kostal Piko & Plenticore, Autodiscovery for Shelly devices
• Core development efforts: Energy Scheduler v2, JSCalendar, New E-Mobility Architecture (EVSE), Predictors

Details

Common/General

• [Docs] Move development environment setup from getting started to a separate page by @simon-lgb in #3268
• Update docker.adoc: added hint & link to influxdb deployment by @sjjh in #3201

OpenEMS Backend

• FEMS Backports 2025-12-17 in #3471
  • Add settings to GetEdges Commit

OpenEMS Edge

• Implement OpenWB Series 2 EVCS by @sthhs in #3299
• Add support for Janitza UMG801 by @schiegg in #3451
• Janitza Meters: cleanup implementations by @sfeilmeier in #3454
• Add MQTT bridge implementation for OpenEMS Edge by @Sn0w3y in #3458
• Controller Timeslot Peakshaving: Avoid endless while loop by @tsicking in #3464
• fixed Kostal Piko HTML parsing bug: kWh for Total Energy in HTML, instead of expected Wh in ActiveProductionEnergy by @janklostermann in #3465
• Add Single Channel datasource for dynamic simulation input by @Sn0w3y in #3448
• Kostal Plenticore: correct and simplify smartmode by @iseeberg79 in #3417
• Refactor openwb mqtt by @Sn0w3y in #3467
• Implement SMA STP-10.0 SE Hybrid ESS by @tsicking in #2618
• [Edge] Update GermanDSO: zeitvariable Netzentgelte §14a Modul 3 for 2026 by @sfeilmeier in #3473
• Implements VirtualMeter on PvInverterCluster by @chpoulter in #3085
• [Edge] Add support for SDM72D-M-2 meter by @Sn0w3y in #3491
• Add Victron Package by @Sn0w3y in #3457
• Update bnd to 7.2.0 by @sfeilmeier in #3494
• FEMS Backports 2025-12-17 in #3471
  • App.Evcs.Keba: fix ReadOnly in EVSE Commit
  • App.System.Fenecon.Home: Control State-LED Commit
  • Battery.Fenecon.Home: Change Prio for Softwareversion and NumberOfModulesPerTower Commit
  • App.FENECON.Commercial.50.Gen3: add compatibility with App.PeakShaving.* Commit
  • GoodWe.BatteryInverter: improvements to MaxAcImport/Export Commit
  • Core.AppManager: force updating configs of components Commit
  • Core.Energy: handle TimeOfUse-Reference is null Commit
  • App.FENECON.Commercial.92: add missing property default value Commit
  • Energy Scheduler v2: handle non available prices & predictions Commit
  • Fix Eclipse Infos and Warnings Commit
  • Controller.Ess.Time-Of-Use-Tariff: fix PID filter fluctuation in DELAY_DISCHARGE Commit
  • Evse.Controller.Single: implement getTask and getOneTasks Commit
  • Battery.BMW: Improvements to go-stopped-handler Commit
  • Energy Scheduler v2 with EVSE Commit
  • Ess.Power: improve "Keep all near equals" solver Commit
  • AppCenter: remove has ac meter (Home 10, 20 & 30) Commit
  • IO.Shelly.*: validate compatibility with hardware type Commit
  • EVCS App Center: hide ARCHITECTURE_TYPE Commit
  • GoodWe.BatteryInverter: fix writing WBMS_DISCHARGE_MAX_CURRENT Commit
  • GoodWe.Charger.Mppt.Two-String: MPPT 5-8 available in components Commit
  • EVSE JSCalendar JSON-RPC: Add properties lastChangeAt and lastChangeBy Commit
  • Tribuo: Allow only severe logging Commit
  • Fix develop branch Commit
  • Energy Scheduler v2 with EVSE Commit
  • Switch EVCS to EVSE and back via App Center Commit
  • Add "App.Prediction.UnmanagedConsumption" Commit
  • Predictor Production Regression Model v2 Commit
  • Industrial L: product update Commit
  • Industrial: Janitza GridMeter for Industrial L and XL Commit
  • Predictor.ProfileClusteringModel: fix daylight saving time change error Commit
  • Energy Scheduler v2: remove internal Cache Commit
  • Improvements to EVSE and JSCalendar Commit
  • Controller.Clever-PV: fix for readOnly error Commit
  • Improve Ancillary Services Commit
  • Switch E Mobility Architecture Commit

OpenEMS UI

• UI bugfix: Fix Log auto unsubscribe + SystemExecute formatting by @da-Kai in #3378
• Enhance breadcrumbs with pointer cursor style by @Sn0w3y in #3413
• FEMS Backports 2025-12-17 in #3471
  • EVSE: manual energy schedule Commit
  • Edge Settings Commit
  • New status icons and adjustments for other icons Commit
  • Charts: hide unused axes; bugfix Commit
  • EN-Buttons translation Commit
  • Manual UI backport Commit
  • Switch E Mobility Architecture Commit

Version Upgrades

• Bump org.apache.felix:org.apache.felix.http.jetty12 from 1.1.4 to 1.1.6 in /cnf by @dependabot[bot] in #3462
• Bump net.bytebuddy:byte-buddy from 1.18.1 to 1.18.2 in /cnf by @dependabot[bot] in #3461
• Bump the bouncycastle group in /cnf with 2 updates by @dependabot[bot] in #3460
• Bump actions/setup-node from 5 to 6 in /.github/workflows by @dependabot[bot] in #3373
• Bump de.bytefish:pgbulkinsert from 8.1.6 to 8.1.8 in /cnf by @dependabot[bot] in #3470
• Bump @angular/common from 20.3.10 to 20.3.14 in /ui by @dependabot[bot] in #3446
• Bump com.google.protobuf:protobuf-java from 4.33.1 to 4.33.2 in /cnf by @dependabot[bot] in #3469
• Bump org.mockito:mockito-core from 5.20.0 to 5.21.0 in /cnf by @dependabot...

2025.12.0

Release Highlights

• Shelly Plug S
  • New autodiscovery feature for Shelly Plugs via App Center via mDNS
  • Supports: Shelly Plus Plug S, Plug S Gen3, Outdoor Plug S Gen3
  • "FEMS App Shelly DIY": this app is available free-of-charge for FENECON users from version 2025.12.1
• E-Mobility
  • New support for ABL eM4 charging station (read-only)
  • Implement forced Phase-Switching for KEBA P40 and P30+S10 (new EVSE architecture)
• Time of Use Tariffs
  • Octopus Go and Heat now support ancillaryCosts (German: variable Netzentgelte)
  • New support for LUOX Energy
  • New support for EWS Schönau
• Under the hood
  • Improved Docker support
  • Improvements to JSCalendar and Energy Scheduler v2

Details

Common/General

• FEMS Backports 2025-11-09 in #3403
  • CI: Add explicit common_test command Commit
  • CI: Update build scripts Commit
  • VSCode: specify default indentation Commit
  • Update build scripts Commit
  • Update build scripts Commit
• Docs: fix broken link and typos by @deining in #3398
• CI: Fix antora build by @da-Kai in #3418
• Gradle: Fix buildBackend by @da-Kai in #3424
• Docs Architecture: Update Cycle component reference by @Eual11 in #3439
• Docs Docker: improve documentation by @akshith30388 in #3412
• Docker: prevent "Interrupted system call" when writing to /etc/apk/repositories by @Sn0w3y in #3368

OpenEMS Backend

• FEMS Backports 2025-11-09 in #3403
  • Extend Odoo Filter Commit
  • Aggregated-InfluxDB: increase allowed Component-IDs for EVSE and EVCS Commit
  • Add ElectricityMeter Channels for ios Commit
  • OAuth2 Registry support Commit

OpenEMS Edge

• FEMS Backports 2025-11-09 in #3403
  • App Manager: ComponentTask with Component Record Commit
  • DynamicDocText: fix failed Test Commit
  • Evcs.Abl: implement ABL eM4 charging station (read-only) Commit
  • TimeOfUseTariff.OctopusGo/Heat: add ancillaryCosts (variable Netzentgelte) Commit
  • Ess.Generic.ManagedSymmetric: Add State Runtime Channels Commit
  • Standardise ErrorAcknowledgeRpc & implement for Industrials Commit
  • fix component not found for default id Commit
  • Temporary fix for failing JUnit test Commit
  • Evcs.HardyBarth: improvements Commit
  • GoodWe.BatteryInverter: adjust notification in State Commit
  • update translation key Commit
  • JSCalendar for Time-of-Use-Tariffs: fix clock issue Commit
  • Controller.IO.HeatingElement: fix NPE in JUnit test Commit
  • EnergyScheduler v2: temporary fix for JUnit tests Commit
  • JSCalendar improvements Commit
  • FENECON Commercial 50: update grid mode mapping Commit
  • Weather.OpenMeteo: fix channel persistence after restart Commit
  • App.TimeOfUseTariff: add compatibility with App.FENECON.Commercial.92.ClusterMaster Commit
  • FENECON Industrial L: Extend System Component with Janitza Grid-Meter (TCP) Commit
  • TimeOfUseTariff.ENTSO-E: improve parsing Commit
  • EVSE + KEBA P40 / P30+S10: implement forced Phase-Switching Commit
  • App.Prediction.Weather: move to 'API' category + do not require owner role Commit
  • Core.AppManager: improve timeouts & error messages Commit
  • Predictor.ProfileClusteringModel: improve error handling Commit
  • TimeOfUseTariff.ENTSO-E: fix query for DE_LU and AT Commit
  • Core.SerialNumber: decrease timeout for persisting serial numbers Commit
  • GoodWe Max Charge/Discharge Power bugfix for old devices Commit
  • AppCenter: Weather App Commit
  • Improve App installation speed Commit
  • Energy-Scheduler v2: improvements Commit
  • Battery.Fenecon.Home: fix software versions Commit
  • Weather.OpenMeteo: fix timezone handling Commit
  • ENTSO-E: default to QUARTERLY resolution Commit
  • App.FENECON.ProHybrid.10 Commit
  • TimeOfUseTariff LUOX Energy Commit
  • Kostal + Samsung: update usage of HTTP Bridge Commit
  • OAuth2 Registry support Commit
• EWS Schönau: TimeOfUseTariff implementation by @Bockhorn-IT in #3302
• Predictor.LSTM: improve robustness and testing by @Sn0w3y in #3402
• Ess.Power: fix possible problems in calculation of ApparentPower constraints by @Sn0w3y in #3401
• OsgiValidateWorker: only validate OpenemsComponents by @Sn0w3y in #3419
• FEMS Backports 2025-11-25 in #3440
  • Energy Scheduler v2: EVSE Cluster Commit
  • Shelly Plug: RelayContactFilter + smart invert Commit
  • FENECON Commercial 92: add GridCode setting Commit
  • Ess.Power: fixed PID filter Commit
  • Plus Plug S, Plug S Gen3, Outdoor Plug S Gen3 Commit
  • Energy Scheduler v2 improvements Commit
  • EnergyScheduler v2: refactor EnergyFlow Commit
  • EWS Schönau ToU: release for Admins Commit
  • Clever-PV / EnerixControl: code cleanup and refactorings [Commit](9d45d08b...

2025.11.0

Release Highlights

• Time-of-Use-Tariff: App for Dynamic Ancillary costs
• Time-of-Use-Tariff Tibber: switch to QUARTER_HOURLY prices
• Compatibility with FENECON Commercial 50
• New Predictor for Consumption forecasting based on historical load profiles
• UI: Add Weather Widget in Live-View
• KOSTAL PIKO PV inverter (via HTTP/HTML)
• UI: Major Update and migration to Angular 20

Details

Common/General

• FEMS Backports 2025-10-02 in #3339
  • CI:
    • Update Unit Tests
    • Reduce Java build Log output: Reduce the log output to make errors clearer.
    • Print test summaries
  • Gradle:
    • Allow more than 2 Tests to run in parrallel
    • Enable parallel build by default
    • Remove failOnNoDiscoveredTests = false
  • Fix 'Configuration file ... is marked executable'
    • Fix warnings like: "Configuration file /usr/lib/systemd/timesyncd.conf.d/fems.conf is marked executable. Please remove executable permission bits. Proceeding anyway."
• Update Gradle + Plugins by @da-Kai in #3337
• Extend auto Stale and Close messages by @da-Kai in #3345
• Update Node.Js to 22 by @da-Kai in #3347
• Update MyModbusDeviceImpl.java by @sjjh in #3315
• Update MyConfig.java: removed import by @sjjh in #3318
• Improve UI docker by @da-Kai in #3366
• Change console output format from plan to colored in gradle build of ci by @miettal in #3364

OpenEMS Backend

• FEMS Backports 2025-10-02 in #3339
  • Dummy AppCenter Metadata
  • Remove UiWebsocketValidator
  • MetadataOdoo: handle uncached Edges
    • Solves throwing an Exception when an Edge is missing in EdgeCache

OpenEMS Edge

• FEMS Backports 2025-10-02 in #3339
  • my-PV + ASKOMA Apps: update names
  • KACO Battery Inverter: introduce SunSpec EnumField16
    • Sunspec channels are automatically created based on EnumField16 enums.
    • These channels are visible as StateChannels in the system.
    • Each channel’s status (OK, Warning, or Failure) is defined during setup—by default, channels are OK unless specifically configured as warnings.
  • FENCON Commercial 50 App
  • Time-of-Use-Tariff:
    • App.TimeOfUseTariff.AncillaryCosts: App for Dynamic Ancillary costs
  • OperatingSystemDebianSystemd: Fix parseIpJson for Debian 9
    • Before a IndexOutOfBoundsException was thrown, which caused App Center install to fail
  • AppCenter:
    • Added a new formly field which handles links and redirects
    • run deactivation async: fixed exception while deactivating multiple nested checkables in CheckOr
    • Add JSONRPC Request for getting App Instances by Filter
  • KEBA ChargePoint: fix JUnit-Test
    • Use fixed DateTime reference, instead of .now(), for reproducability
    • Remove duplicate ReadWorkerTest
  • BridgeModbusTcpImplTest: delete JUnit test failing in CI
    • Introduced in #2879
  • PredictorProductionLinearModel: add channels to track prediction quality
    • Added new channels to track predicted production values from the PredictorProductionLinearModel
    • For each forecast run, predicted values at fixed horizons (1 hour, 6 hours, 12 hours, 24 hours, and 36 hours ahead) are stored in the respective channels
    • This enables precise monitoring and evaluation of the prediction accuracy over these time intervals
  • Meta-App: manage Maximum Grid Feed In Limit settings
    • Moves MAXIMUM_GRID_FEED_IN_LIMIT (GridOptimizeCharge) and FEED_POWER_PARA_SET (GoodWeBatteryInverter) to Meta Component
    • Both controllers use the same value as reference
    • Added a new formly field which handles links and redirects
  • New Predictor for Consumption forecasting based on historical load profiles
    • A new predictor model has been developed to forecast upcoming unmanaged consumption values.
    • The prediction is based on typical household daily load profiles.
    • Load profiles are determined by clustering historical daily consumption time series data.
    • The load profiles correspond to the cluster centres.
    • The upcoming profile is chosen using historical consumption patterns, such as the day of the week, whether the upcoming day is a working or non-working day, and the previous profile.
    • The model evaluates the prediction in real time. So, if during the day the model realizes that the wrong profile was chosen, a better-fitting one is selected for the rest of the day.
    • The forecasted quarterly values are determined by the predicted profile.
  • EVSE New Architecture
    • Add State-Machine to EVSE Single Controller:
      • EV_NOT_CONNECTED: EV is not physically connected to the charge point.
      • EV_CONNECTED: EV is physically connected but not yet charging.
      • CHARGING: Regular charging is ongoing. EV is drawing current according to configured limits and conditions.
      • FINISHED_EV_STOP: Charging finished by EV. EV is not drawing power even if it would be allowed to.
      • FINISHED_ENERGY_SESSION_LIMIT: Charging is finished by OpenEMS because the configured EnergySessionLimit was reached.
      • prepared for more...
    • Add Change-Limit for rising set-points (3 % per second)
    • Improve surplus distribution: recursive call makes sure everything is distributed to max power
    • Drop SESSION_LIMIT_REACHED state; replaced with State-Machine
    • Improve JUnit tests and coverage
    • KEBA: use Enum for setSetEnable() (applies also to EVCS)
    • Phase-Switch is currently not working. Needs to be added to State-Machine
    • Successfully tested with 2 x KEBA P30
    • Configurable minimum power for vehicle
      • Added min and max power in generic vehicle and generic vehicle app
  • KEBA UDP: disable flaky JUnit tests
    • UDP tests sometimes fail with java.lang.Exception: On TestCase [#1]: expected ReadValue [CHARGING] got [UNDEFINED] for Channel [Status] in Nature [Evcs] on Inputs [[]]
  • Tibber: switch to QUARTER_HOURLY prices
    • Change GraphQL to QUARTER_HOURLY resolution, update parsing of prices and JUnit tests
    • See https://developer.tibber.com/docs/changelog for details
  • GoodWe:
    • use new Registers for GridFeedInLimit and FixedPowerFactor: Registers for FENECON Commerical 50 changed
    • allow only possible EmsSetPower limits and correct AcImport/AcExport
  • Controller.Ess.RippleControlReceiver: Rundsteuerempfänger
    • Controller for Ripple Control Receiver
    • Digital Input 2 - Digital Input 4 are used as signal
    • DI2 reduces to 0%, DI3 to 30%, DI4 to 60%
    • If there are more than one relay active, the "strongest" limitation is used => e.g. 0% and 30% are activated => reducing to 0% power
    • Currently only for GoodWe Inverters => Feed-To-Grid Power Limit is set to the lowest of the two options:
    • MaxApparentPower * Limitation or the own set limit
    • removed MaxGridFeedInLimit of GridOptimizeCharge and BatteryInverter and added it in Meta app => uniform using of limit
  • Weather Forecast: keep data in channels
    • The current weather and the forecast for the next 24 hours are now being written in channels
    • This is more efficient in UI
  • Shelly: add invert config property to all ElectricityMeters
  • App.Heat.HeatingElement: ignoring heat and evcs components in the extern meter list
  • KACO Battery Inverter: introduce SunSpec EnumField16
    • Sunspec channels are automatically created based on EnumField16 enums.
    • These channels are visible as StateChannels in the system.
    • Each channel’s status (OK, Warning, or Failure) is defined during setup—by default, channels are OK unless specifically configured as warnings.
  • Consistant Icons
    • changed icons and Buttons to be more consistently identified with functionality
• Fix high and low price description for Octopus Heat TOU Tariff by @sthhs in #3344
• Update timeofusetariff octopus heat Config.java: typo by @sjjh in #3346
• FEMS Backports 2025-10-08 in #3353
  • App.Meter.PqPlus available for OWNER
  • Weather.OpenMeteo: add random jitter to API calls to reduce simultaneous load
  • App.PvInverter.SolarEdge: make Modbus Unit ID configurable
  • Phase Rotation for Heating Element & Eastron meter
    • outsource enum "Phase Rotation" to make it independent
    • changing translations
    • implementing "Phase Rotation" in modbus protocoll of the Eastron meter
    • added property "Phase Rotation" in the Eastron meter app
• implement KOSTAL PIKO PV inverter via HTTP/HTML parsing by @Sn0w3y in #3297

OpenEMS UI

• FEMS Backports 2025-10-02 in #3339
  • Migration to Angular 20
    • Apply ng generate @angular/core:control-flow
    • VSCode: fix html formatting issues with new control flow syntax: Reference
  • Settings | Channels: add option to select multiple channels
  • EVSE New Architecture
    • Extend Evse with navigation to app center update page
    • Refactored app center update pages to be usable with new navigation
    • fix german/english translation of power
  • Fix Helpbutton-component not working due to wrong property name being checked
  • Time-of-Use-Tariff Ancillary Costs: Fix possible input errors
  • Style fixes
  • EVCS Cleanup
    • Added class EvcsComponent to clean up historic...