June 2026 Update

Device Connectivity & Integration

SOLARWATT Charger max

Automatic 1-phase ↔ 3-phase switching is now supported natively.

EEBUS on EMX 

KEO stack activated for the EMX gateway, enabling support for EEBUS-compatible devices.

Energy Management & Inverter Support

getCurrentPowerLimit default value 

Implemented for multiple inverter bindings: Stand-In, Huawei SUN 2000, SOLARWATT Inverter vision, Sunspec next. Resolvers updated accordingly.

PVPowerProductionMeasurable Resolver added for the Stand-In Binding.

Peak-Filter

Upper measurement limit for energy meters raised from 100 kW to 250 kW, enabling correct metering for larger PV plants and high-consumption sites.

Setup & Configuration (EM.setup)

PV Plant save behavior 

Data is now only stored when the user explicitly clicks "Save & Continue." No unintentional partial saves.

Feed-in tariff removed from EM.setup 

Management is now exclusively via TTG.utility and the customer portal (TIH/EMH). No fields, values, or hints for feed-in tariffs are shown in EM.setup anymore.

priceProfitFeedin 

No longer a mandatory field in the PV plant binding. EM.setup configuration updated accordingly.

Load management 

Added

System & Asset Management

Asset management overhaul 

Unified, reliable approach for asset detection and initialization. Ensures accurate registration of all devices and the gateway. Results in faster updates, smoother initialization, and more stable overall system behavior.

Bug Fixes

Curtailment Logic (SEC-2297)

Simultaneous PV production + battery charging 

Curtailment now reliably reduces grid feed-in by the correct amount, including the battery charging power. Previously, feed-in was insufficiently curtailed in this scenario.

Battery discharge at hybrid inverter

Battery discharge power is no longer incorrectly affected by curtailment logic.

Charger & Phase Switching

KEBA P40 / SOLARWATT Vision Max

Fixed: automatic switchback from 1-phase to 3-phase charging in PV Optimization mode was not triggered when sufficient PV surplus was available again.

API & Data Accuracy

Location & HEMS APIs

Fixed: consumption and production values were reported significantly higher than actual values shown in Admincenter. Root cause: events were published twice, leading to doubled readings. Duplicate event publishing has been removed. API data and Admincenter now match.

EM.setup

Page reload

Header and info text now always visible, regardless of whether the page is reloaded or navigated to normally.

Ethernet IP config without cable  

No longer causes a 500 error. Situation is now handled gracefully.

Location / Country field 

Fixed saving failure caused by incorrect country code processing. Country codes are now saved correctly.

Language selector

Fixed poor visibility on dark backgrounds in the login area.

PV installation date

Now a required field (marked with *). Manual keyboard entries in the correct format (e.g., 20.04.2026) are accepted and retained. Previously, entries could be lost or the field left empty when the date picker was not used.

"Install selected device" button

Now correctly stays disabled when no device is selected. Fixed a regression where after an error, the same error message persisted even after a valid device was selected.

Device-Specific

PV plant tag WorkACOut  

Restored: syncing had stopped after the update to KiwiOS X Edge 10.26.19.0 and was replaced by other tags. This change has been reverted.

Stiebel Eltron heat pumps  

Fixed too-low work values. Issue occurred when KEBA P40 / SOLARWATT Charger max was active simultaneously. Resolved via optimized readout behavior in the No Code binding.

False positive LED error 

Fixed: orange LED animation was incorrectly triggered in certain scenarios.

Weidmüller debug tag removed ns:things:features:ns.koct.weidmuller.debug:properties:measuringMethod is no longer needed and has been removed to prevent issues in cloud components.

Stability and Infrastructure

ARP Discovery

Increased robustness: excessive network events (e.g., from faulty or frequently reconnecting devices) are now handled to prevent event loop overload.

Empty asset list after update to 10.26.7.4 — Fixed. Root cause was a failure in asset registry initialization (see CON-20373).

Reactive Support 

Added retry mechanism for cases where ThingRegistry is unavailable at startup. A gateway reboot is no longer required if this occurs.

Startup process 

General stability improvements to the startup sequence.

PV optimization toggling 

Reduced toggling in scenarios with fluctuating PV power output by adjusting responsiveness evaluation for new power setpoints.