We’d like to inform you that software version 1.26.0.1 will be rolled out soon!

If auto-updates are enabled, the rollout happens automatically and requires no manual action from you. If you have questions or need assistance, simply reply to this email or contact our support team via the support portal.

Dear Partner,

We'd like to inform you that a new SmartgridOne software version 1.28.0.1 will be rolled out soon. If auto-updates are enabled, the rollout happens automatically. If you have questions, simply reply to this email.

SmartgridOne 1.28.0.1 Prerelease · June 2026

6

New externalsignals

7

New deviceintegrations

4

Refactoreddrivers

6

Reliability

Improvements

Highlight features

The biggest new capabilities in this release

New · Connectivity

Modbus TCP Slave

The SmartgridOne controller can now act as a Modbus TCP slave.
Read out live data or send control commands to the EMS directly from your own SCADA, BMS or automation system - no cloud dependency required.

New · Belgian Market

Fluvius Telecontrole via IEC104

SmartgridOne now supports Fluvius Telecontrole signals via the IEC104 protocol. Direct DSO signaling from the Belgian grid operator can now be used to automatically adjust energy behavior on-site.

Read the docs →

New · Heat Pumps

Shelly + Smartgrid Ready Heat Pumps

You can now use Shelly relays to control Smartgrid Ready Contact heat pumps. An affordable and easy-to-install solution to integrate heat pump management directly into SmartgridOne.

Read the docs →

New Integrations

These devices are now supported in SmartgridOne.

Make your system compatible? Click here! →

Inverter

SolaX – C&I Inverters (X3 Inverters)

Production monitoring and control for SolaX CI series inverters.

Read the docs →

Inverter

FoxESS – GMAX EMU

Monitoring and control support for FoxESS GMAX EMU inverters.

Read the docs →

EV Charger

Mennekes – Amtron EV Chargers

Charging session management and smart control via SmartgridOne.

Read the docs →

Inverter

KStar – KSG Series Inverters

Expanded SmartgridOne inverter compatibility with the KStar KSG series.

Read the docs →

Energy Meter

Socomec – Old Diris A40 Models

Broader compatibility with existing installations using older Diris A40 energy meters.

Read the docs →

Heat Pump

Shelly – Smartgrid Ready Contact Heat Pumps

Use affordable Shelly relays to integrate SG Ready heat pumps into SmartgridOne.

Read the docs →

Improvements & Fixes

A full overview of what changed under the hood

External Signals

·Modbus TCP slave - Read data and send control commands via Modbus TCP directly to the EMS.·Fluvius Telecontrole (IEC104) - Direct DSO signal integration for the Belgian market.·Swiss ripple control - Support via digital inputs for the Swiss grid market.·Nano Energy - New external signal provider added.·Grid power setpoint - Rudimentary support for external grid power setpoint control.·Baselining - Reference power profiles can now be used in scheduling via external signals.·FlecoPower & Pleevi - Regular feedback push + onboarding/deletion functions added.·Imby & Frank Energie - Night-time base load reporting and improved battery status reporting.

System & Control

·Faster control - Decoupled measurements when state estimator is active for much faster response.·EV + battery grid support - Much improved coordination when more EVs charge than the grid allows.·PV uncurtailment - Significantly better detection of when PV can safely produce more power.·Single EV setpoint - Higher setpoint sent when only one EV is charging (no democratic split needed).·Startup delay - Small delay before initial planning upload prevents skewed early plannings.·Outlier filters - Better filtering of device measurements outside realistic scope.

Driver Refactors

·Sungrow hybrid inverter - Fully refactored driver.·Enovates charging station - Completely rewritten for improved stability.·C-Battery inverter - Refactored for improved code quality.·Growatt TLXH - Refactored for maintainability.·Solinteg - Hardened against incorrectly read nominal powers.

Reliability Improvements

·Democratic distributor - Fixed edge cases due to rounding errors.·Victron standard inverters - Corrected register mappings for voltage, current and per-phase power.·Cloud controller - Fixed race condition on internal configuration object access.·EV charger uncurtailment - Fixed incorrect uncurtailment behavior.·Sessy energy meters - Fixed sign of reported power values.·SMA Sunny Boy Smart Energy - Fixed curtailment handling bug.

⚠️ Deprecated

GoodWe UDP control - UDP-based control for GoodWe has been deprecated. Please ensure your GoodWe devices are configured to use the supported Modbus interface instead.

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