Changelog

Release Notes - July

Building on the mid-June releases, this update brings a large wave of new hardware support, optimized energy trading, new imbalance-trading partner, expanded DSO RTU (telecontrol) monitoring, and a broad set of dashboard, planning and reliability improvements.

Device Management

Newly supported devices

You can now connect, monitor and control more hardware directly from Voltmasters. See the full device integrations overview.

• GoodWe SEC3000C: hybrid battery inverter (PCS). Documentation

• Huawei SmartLogger Hybrid: battery PCS that groups SUN2000 inverters and grid meters behind a single SmartLogger — now also supporting multiple grid meters on one SmartLogger. Documentation

• Risen Storage V2 and EcoSourcen EMS V2: battery systems. Documentation

• Sinexcel DC Charger: DC fast charger for electric vehicles. Documentation

• SMA Sunny Tripower TL-30 and additional STP models (STP 8000TL / 9000TL / 10000TL / 17000TL): PV inverters. Documentation

• SAJ CHS2: its grid meter is now resolved automatically under the hybrid inverter.

Improved commissioning

• Huawei SmartLogger discovery is faster and more reliable: it reads device identification to map inverters and grid meters, rejects stale entries, and shows live progress during commissioning.

Energy Management

Battery scheduling

• Grid charge for injection: a new strategy option that lets the battery buy cheap grid energy specifically to resell it at injection-price peaks (used together with injection sales). Documentation

• More accurate injection planning: several fixes so the schedule dispatches injection sales correctly at price peaks. Documentation

• The battery now rests during idle slots: during an idle schedule slot the battery no longer self-supplies the whole site to zero grid. It only "boosts", discharging just enough to keep the site within the grid import limit, and leaves the economic self-supply to the planned slots. Documentation

EV charging

• Smoother EV & battery coordination: EV power budget now ramps smoothly. Documentation

Solar (PV)

• Better PV production forecasts: daily per-inverter scoring of forecast versus actual, with automatic bias correction and weather-aware improvements.

  

Energy Trading

New imbalance-trading partners

• Engie is now available as imbalance trading provider. Configure them in the project's energy trading module. Documentation

Improved

• Simpler trading configuration: trading eligibility is now determined automatically by device controllability, so the manual per-device enable/disable form has been removed. Documentation

• New EPEX regions: energy-price calculation now supports new EPEX bidding zones: DE, AT, CH, GB, PL. Documentation

DSO RTU (Telecontrol)

• Sibelga is now supported as a telecontrol operator (over Modbus TCP), added through a new multi-operator telecontrol layer. Documentation

• Local emergency-stop triggers: configured IO digital inputs can now assert production/consumption emergency stops locally, combined (OR-ed) with the grid operator's IEC-104 commands. Documentation

  
• RTU status dashboard: a new telecontrol visualization shows live RTU status and raises incidents when the RTU triggers an emergency stop. Documentation

  
• Fluvius energy-data mandate: support for the Fluvius (itsme) mandate flow to retrieve metering data. Documentation

  

EMS Validation

• Project delivery validation: New projects can be marked ready for validation, with a status bar on the EMS dashboard. This requests the Voltmasters project engineers to validate the configuration.

Planning & Overrides

• One-off consumption planning: schedule temporary load for a concrete date/time range, alongside the existing recurring weekly slots. Documentation

  
• Scheduled manual overrides: device manual overrides can now be scheduled with from/till pickers. Documentation

Mobile app

• IO extension ports are now available in the mobile app, showing each port's direction and assignment (controllable load, telecontrol trigger, emergency stop or switch position).

Release Notes - June (part 2)

This release introduces support for IO extensions and controllable loads, expands the list of supported hardware, adds a Flexible energy contract type, a network check for EMS controllers, and a partner webhook API, alongside numerous accuracy and reliability improvements.

Device Management

IO extensions & controllable loads

You can now connect an IO extension to the EMS controller and use its relay outputs to switch simple on/off loads (for example heating elements, pumps or auxiliary equipment) on and off directly from Voltmasters.

• IO extension as a new device category, with digital inputs and relay outputs. Moxa is the first supported brand.

• Controllable loads wired to a relay output of an IO extension, with:

  • a configurable relay actuation mode (normally open / normally closed, and whether the device is ON or OFF when the contacts close)

  • a default output state

  • scheduling parameters to control when the load may switch

• A dedicated Ports tab on the IO extension to configure each port (direction and usage).

• Manual overrides to force a port or a controllable load on or off.

• Telecontrol emergency stops: map IO extension output ports to the production and consumption telecontrol stops in the project settings. Each port can be used by a single stop.

Newly supported devices

• Poweroad Flex261 AIO Liquid Cooled: liquid-cooled all-in-one battery system.

• Schneider iEM3355 & iEM3455: energy meters, added as beta.

• SAJ CHS2 self-consumption mode: the SAJ CHS2 hybrid inverter can now be configured to allow self-consumption mode, giving you more control over how the device prioritises using your own generated energy.

Energy Management

New

• Flexible energy contract type. Alongside dynamic and fixed contracts, you can now choose a Flexible contract: rates are adjusted periodically (for example monthly or quarterly) but remain fixed within that period. The contract-type tooltip now explains the difference between dynamic, flexible and fixed.

Partner Portal & Integrations

New

• Partner webhook API. Partners can now manage webhook subscriptions through the integration API (create, list, view, update, delete, ping, and rotate the signing secret) and receive notifications when a project's coupling configuration changes. A project site-config endpoint has been added as well. See documentation: https://platform.voltmasters.be/docs/integration/api#/operations/v1.listIntegrationWebhook

Settings & Administration

New

• Network check for EMS controllers. Voltmasters can now test network connectivity from the controller to specific hosts and services (TCP, DNS, NTP, STUN and HTTP), including latency, resolved addresses and HTTP status, to quickly diagnose connectivity problems.

Release Notes - June

Device Management

Newly supported devices

A major expansion of supported hardware. You can now connect, monitor, and control the following devices directly from Voltmasters.

Batteries & battery inverters

• SAJ CHS2: hybrid inverter combining solar and battery in a single unit

• Teplore V2: battery inverter for residential and commercial storage

• Elecnova Eco: battery inverter for energy storage

• EcoPowerCell: battery system for storing solar energy

Solar (PV) inverters

• Solax X3: three-phase PV inverter, now supporting a 4th PV string

• Solax X3 Pro 15K G2: high-power three-phase PV inverter

• Solaxmega: PV inverter for larger installations

EV chargers

• Mennekes Amtron: smart charging station for electric vehicles

Energy meters

• Socomec DIRIS A-30: energy meter for accurate consumption measurement

Improved

• Several devices have graduated out of beta and are now fully supported.

Energy Management

Improved

• The Grid Limit Safety Controller now has an improved emergency-stop procedure and clearer warnings. It actively monitors your grid connection limit and intervenes before it is exceeded, helping you avoid peak penalties and outages.

• The consumption peak is now calculated per 15-minute interval, in line with grid operator settlement.

EMS Dashboard & Monitoring

New

• Calendar date picker on dashboard graphs. Jump straight to any day, or switch between day, week, and month views to review historical data.

Improved

• Battery statistics no longer show unknown or unavailable values, for a cleaner overview.

• EV charging dashboard with corrected values, a revised connector interface, and a clearer charging-session tooltip.

• Improved energy price graph on the EMS dashboard, now showing live consumption and injection prices.

Incident Management

New

• New incident types for battery (BMS) and inverter (PCS) faults, so hardware problems are detected and reported more precisely, including readable descriptions in your own language.

Partner Portal

The partner portal gets a major upgrade this release.

New Partner Dashboard

The partner portal now opens on a brand-new Partner Dashboard, your central cockpit as a Voltmasters partner. In one place you get:

• Key figures for your portfolio: active projects, active subscriptions, hardware integrations, and hardware-agnostic coverage

• A live feed of recent changes across all your projects

• Direct access to your account manager and technical support contacts

• Quick links to the technical documentation and shared documents you can use to introducte Voltmasters to your clients.

Support & ticketing

Alongside the dashboard, the partner portal now includes built-in support, so you no longer need email to get help:

• Create support tickets directly from the portal

• Track all your tickets in a single overview, each linked to the relevant project and device

• Tickets are handled through our helpdesk for faster, traceable follow-up

Release Notes - April

Security

New

• Two-factor authentication (2FA) is now available for added account security.

• We strongly recommend enabling it for all users.

Reporting & insights

New consumption report

Available via the Energy Meters dashboard.

Includes:

• Totals and peak values per energy meter

• Totals per PV inverter

• Project-level totals

• Date range filtering

• Tariff scheme filtering (day/night)

• Export functionality

• Minute-level export for detailed internal settlement

EMS Dashboard

New

• Per-minute measurements in daily view for more accurate visibility of peaks and fluctuations.

• New graph for:

  • energy prices

  • grid power

• New KPI blocks:

  • Self-supply rate

  • Self-consumption rate

Improved

• Updated graph UI for better readability.

• Smoother chart rendering.

• Filters moved closer to graphs.

• Improved labels for:

  • Consumption

  • Grid import

  • Grid export

• Each battery now shows SOC in the energy flow diagram.

Energy Management

New

• New battery load balancing strategies:

  • Cascade

  • Pro Rata

• Configurable in project settings.

• Grid capacity / contract power changes can now be:

  • Applied immediately

  • Scheduled for later execution

• Scheduled changes are automatically applied.

• Detection of deviations between battery setpoint and actual battery power.

• On each device, you can now configure whether the TCP connection must be exclusive or may be shared.

• Imbalance prices are now fully logged for all prices published by Elia in the context of market pricing.

  • Purpose: market analysis to support development of proprietary control strategies.

Incident Management

New

• Incidents now include severity levels:

  • Info

  • Warning

  • Critical

• Open incidents can now be manually marked as resolved.

Improved

• Status icons better reflect open, muted, and severe incidents.

Device Management

New support

• ABB EV chargers

• Fluvius P1 energy meters

• Sunny Tripower PV models

• Expanded support for SunSpec-compatible PV inverters

New

• Energy meter can be set as main meter directly during setup.

• Battery setup now requires minimum and maximum SOC values.

• Clear distinction between virtual and physical devices in the setup form.

Improved

• Additional tooltips added to input fields.

Project Management

Improved

• Projects without devices are now more clearly highlighted in the project list.

• Net connection references / meter point IDs can now be managed.

• Improved validation and country-specific guidance added.

PV & Energy Data

Improved

More consistent and accurate calculations for:

• battery state of charge

• PV production

• quarter-hour peaks

• consumption totals

• PV dashboard now correctly retains inverter selection between combined and individual views.

API & Integrations

New

New integration API for partners and energy providers:

• Retrieve projects

• Energy meter data per quarter-hour

• Peak and interval values for external reporting and integrations

Release Notes - March

Partner Portal & Management

New

• New Partner Portal for improved collaboration and management.

• Partner information visible in the sidebar.

• Partner logo shown in the menu.

• Users can be invited via email to access the partner environment.

• Partner settings available per project.

• Website link added to partner profile.

Billing

• Overview of invoices.

• Overview of subscriptions.

• Export/download of subscription data.

• Partner billing details are now automatically prefilled during subscription checkout.

• Mandatory user consent checkbox when activating subscriptions.

Project Management

New

• Direct navigation from project status icon to incidents.

• Firmware update prompt may appear when creating a new project.

• API key management moved to project settings.

Improved

• Grid settings in project configuration are now better structured.

Device Management

New

• New All Devices page.

• Direct link to device settings.

• Filters by type + model.

• Per-device telecontrol can now be enabled/disabled individually.

• Manual device overrides with full history tracking.

New supported devices / brands

• PowerVault

• Eastron SDM630

• Etrel

• Siemens

• Growatt

• Risen Storage

Improved

• Reduced number of required fields when adding devices.

• Better prevention of duplicate devices.

EMS Dashboard & Monitoring

New

• New control mode view.

• New EV Charging Pro dashboard for charging stations.

• Live data on dashboards:

  • battery status

  • real-time solar production

  • charging status

• Daily PV forecast now visible in dashboards.

Improved

• Redesigned energy flow diagram.

• Improved layout.

• Better handling of long names.

• Battery State of Charge added.

• Higher refresh rate for the energy flow diagram.

Solar / PV

New

• Incident created when PV production is missing for 2 hours while production is expected.

• Smarter PV forecasting using weather data and historical data.

• Nominal power and production capacity added to configuration.

• PV curtailment visualization in graphs.

• Display of total curtailed energy.

Improved

• More accurate solar forecasting.

• Inverter power is now taken into account in predictions.

• Nominal power can be auto-filled when adding PV installations.

• Improved fallback when weather or prediction data is unavailable.

Energy Management

New

• Manual consumption planning input now available.

• Peak power split into:

  • consumption

  • injection

Improved

• Better handling of negative values in imbalance graphs.

• Clearer explanation for consumption planning inputs.

API & Integrations

New

• Introduction of a general API with API key authentication.

• API endpoints for:

  • devices

  • curtailment

  • calibration

  • overrides

  • incidents

  • manual overrides

• Full API documentation available.

Improved

• Trevi integration now uses a separate certificate per project.

• Fix for ENTSO-E day-ahead prices when quarters are missing.

General Improvements

• Faster user experience due to background controller updates.

• More reliable tooltips and graphs.

• Improved error messages for invalid email addresses.

• Grafana Pro dashboards are now refreshed daily to ensure the latest version is always available.

Release Notes - February

EV Charger Support

• New EV Charger module: full support for EV chargers in the platform.

• EV dashboard: new overview page with charging stations and connectors, real-time power, donut chart, and SoC column.

• Charging priority: priority can be set per connector; changes are processed in a queue.

• Integration: EV chargers included in the EMS dashboard (block) and in consumption planning.

• In project settings, a power boost reserve can be configured. This buffer is built up to smooth peak loads from DC fast chargers.

Subscriptions and Invoicing

• Subscription flow: new “activate-subscription” structure with subscription plans.

• Management page to handle subscriptions and invoices.

• Possibility to adjust billing details for upcoming invoices.

EMS Dashboard and BMS Dashboard

• Dashboard redesign: renewed EMS dashboard with line chart and improved battery visualization.

• Energy meters: “show unmeasured” option for energy meters; device type calculator now uses active power.

• EMS dashboard optimization

Consumption Planning

• Interface to manually enter consumption planning.

• Plan additional consumption as recurring. For example, for machines that switch on at fixed times where sufficient energy must be buffered to smooth this consumption peak.

Incidents and Monitoring

• Muted incidents: incidents can be muted; muted incidents no longer count toward status/badges in the project overview.

• New triggers: incident for negative consumption; command that verifies whether PV production is actually generating when it should.

Device Support and Management

• New brands/models: Hite (PCS/BMS), Solis, Growatt, Socomec (energy meter), Schneider IEM3555 energy meter. Sunspec generic PV device; SCU BRES reverse PCS adapter; proxy for Gres BMS; Hite combiner box.

• Adding devices: wizard redesigned:

  • Device properties are read live from the device.

  • Check if the device is reachable during setup.

  • Child devices are detected and offered for automatic addition (e.g., hybrid inverters).

• Support for multiple BMS devices per inverter.

• Improved validation and device configuration.

MCP (Model Context Protocol)

• MCP server: new MCP server with device search and resources. Currently in beta.

Strategy and Trading

• Project strategy: deadband as a project strategy setting.

Minor Adjustments and Improvements

• UI/UX: small design and padding fixes; horizontal scrolling on battery components (no mouse wheel); fixed scrolling in charts; copy-to-clipboard for hardware ID (HTTPS); phone number no longer required/unique in profile.

• Forms: improvements to General Settings, add device form, and user profile (including precognition, password saving); tooltips and visibility logic in device settings.

• Charts: hidden series filtered from tooltip; tooltip rendering fixed when first series is disabled; minimum y-axis set to 0; adjusted line width; check added when chart element is not found (no mount).

Release Notes – Web Application

• Rework of the EMS dashboard

• Filter muted incidents from project overviews and the incidents item in the project menu

• Project filtering based on incidents now takes the muted status of incidents into account

• Project configuration: new fields added — power boost reserve (%) and deadband (kW)

• Fix for negative production values on the EMS dashboard

• Google Chat notification when creating new projects

• Data update: total(Dis)ChargedWattHours replaced by consumptionWh and productionWh

• Energy flow diagram now uses kW values read directly from the PCS, instead of V × A × cos φ

• Extended input validation for imbalance provider configuration

• Profile update: phone number is no longer required and no longer needs to be unique

• Fix for negative values on the EMS dashboard and energy meters

Firmware versie 0.0.192

PV Curtailment Optimization

• Grid export limit is now implemented directly in PV inverter setpoint calculations.

• Improved curtailment handling for edge cases:

  • negative injection price, positive consumption price

  • negative injection price and negative consumption price

Battery Scheduling

• Added a new “Charge at max power” action type to the battery schedule.

• Introduced an explicit action to charge the battery at maximum available power.

• compensate_pv_surplus is now actively scheduled instead of defaulting to idle behavior.

Control Logic Improvements

• Added a dead zone to self-supply control to prevent unnecessary oscillations.

• Improved trading logic to prevent unintended battery charging from the grid when trading is enabled.

Controller Debugger UI – Enhancements

Activity Logs

• Important system events are now logged locally on the controller, improving diagnostics and troubleshooting.

Extended Controller Dashboard

The dashboard now includes additional system-level information:

• System information

• Memory usage

• Storage status

• Network details

• Complete list of incidents

Configuration Tab

• API authentication token is now displayed in a readable format for secure server communication.

Forecast Page Improvements

• Added date filtering (from–until).

• Improved graph layout and readability.

• Updated styling of statistics summary blocks.

Controllers Overview

• Added a new controller type: BatteryScheduleController.

Forecast API & Data Processing

Forecast API Update

• Forecast API migrated from v1 to v2.

• Power values are now returned in Watts (W) instead of Watt-hours (Wh).

Internal Data Handling

• All forecast data is automatically converted from W to kW for processing and visualization, including:

  • Consumption

  • Total PV generation

  • PV generation per inverter

Debug Enhancements

• Debug server now exposes historical forecast data up to 48 hours in the past.

• Forecast visualizations in the debugger have been improved for clarity and usability.

New Features

• Provisioning flow added for new EMS controllers.

• Sites dashboard extended with search and filter functionality.

• Support added for Schneider PAS600.

• Gateway device information added to the device communication overview.

• Option added to enable or disable advanced logging to reduce data usage.

• Project settings now display controller information and include an EMS controller update button.

• Project name, time zone, and project ID are now included in controller configuration.

Improvements & Fixes

ESS, PV & Data Accuracy

• Corrected consumption and production calculations in the ESS graph.

• PV dashboard data corrected.

• Battery performance email values corrected.

• Peak power information removed from battery performance emails.

UI & UX

• Device override interface improved.

• Tooltip corrected in the projects table when a controller is offline.

• Changelog table updated.

• Improved translations of algorithms.

Incidents & Monitoring

• Added new incident type: “unknown” for unidentified keys.

• Improved handling of unknown incident types.

• Removed duplicate incident detection.

• Chat notification added for fire alarm incidents.

• Additional checks added to hide battery temperature or DC breaker statistics when not available.

User Permissions & Visibility

• Both customers and installers now have access to the pro dashboards.

• Manual override is hidden for non-connectable inverters.

• Pro dashboard variables extended with project_id.

Stability & Reliability

• Various internal optimizations and stability improvements across the system.

Firmware Version 0.0.191

This single update consolidates all functional, structural, and integration changes implemented across all intermediate versions.

Device, Adapter and Integration Support

A major expansion of supported hardware.

Newly Supported Devices

• Huawei Smartlogger

• SMA inverters (Sunny Tripower, Sunny Boy and related models)

• Fronius inverters

• ABB inverters

• Goodwe inverters

• Sungrow inverters

• Carlo Gavazzi EM24 energy meter

• Fluvius AMR digital meter

• Virtual PV adapter

PCS, Battery and BMS Improvements

• New adapters for:

  • Liquid-cooled BMS

  • EP Energy EPES233 PCS

  • SCU BRES BMS and PCS

  • EnjoyPower PCS

  • Poweroad PMS PCS

• Corrected register mappings for all PCS types

• Added DC-side max charge and discharge current readouts

• Added battery production and consumption channels

• Added calibration command and calibration state handling

• Added derating coefficient support

• Added unmanaged device mode for read-only operation

• Improved device health evaluation using severity classification

Metering Enhancements

• Added auxiliary energy meters for PV and PCS

• Corrected inverted metering direction

• Improved active-power accuracy

• Added production capacity configuration

Trading, Forecasting and Imbalance Logic

Trevi

• Full implementation of Trevi battery trading provider

• Added Trevi imbalance signal support

• Added persistent trading state management

• Improved trading signal mapping and decision logic

• Added calibration lockout to prevent usage during automatic calibration

• Integrated Trevi metadata and measurements into process image logging

Yuso

• Full Yuso optimization integration

• Added Yuso imbalance signal support

• Fixed maxSiteOfftakeActivePower reporting

• Added logic to prevent charging from grid when operating in Yuso local mode

• Updated standby behaviour and local-mode optimizations

Forecasting

• Added complete forecast provider (API and static fallback mode)

• Added retry logic for forecast updates

• Fixed interval clearing issues

• Improved W→kW conversion accuracy

• Added fallback to self-supply when forecast data is insufficient

• Improved alignment of forecast data with 15-minute intervals

Algorithms, Control and Optimization

Cost Optimization

• Fully rewritten charging and discharging algorithm

• Proportional power distribution based on energy headroom

• Battery grouping logic based on pricing differences

• Improved PV buffering and oversupply handling

• Improved consumption reconstruction and calculation logic

• Enhanced load scheduling with minimum runtime rules

Oscillation Prevention

• Redesigned oscillation prevention controller

• Per-device measurement latency handling

• Controlled minTimeBetweenChanges

• Decision history tracking with persistent storage

• Integrated into main control cycle

• Removed legacy deadzone controller

Grid Logic

• Added grid limit exceeded incident

• Added grid power feedback correction logic

• Improved grid limit controller integration

• Corrected grid export calculations

Self-Supply Logic

• Migrated to algorithm-based architecture

• Updated fallback behaviour using forecast data

• Improved PV curtailment handling

Monitoring, Debugging and Process Image

Debugger Enhancements

• Added full control decision viewer

• Added forecast inspector

• Added device channel viewer

• Added project information (name, ID, URL)

• Added local and public IP display

• Added modbus REPL for device testing

• Added connectivity test command

• Added calibration status preview

• Added raw configuration view

• Improved stale data detection and tooltips

Logging and Process Image

• Added logging of:

  • Battery power

  • Grid power

  • PV production

  • Process image snapshots

  • Trading provider states

  • Control decisions

  • Forecast data

• Enabled structured cloning of controller calls

• Added per-cycle logging of control cycles

Simulator and Development Tools

Simulator

• Full energy flow simulator added

• Timeline representation of consumption, PV and battery behaviour

• Integration with forecast data

• Simulation of cost with and without optimization

• Multiple bug fixes related to data models, paths and build process

• Major redesign of simulation data structures

Mockbus

• Added editable registers

• Simplified simulation behaviour

Developer Tooling

• Added build pipeline for both bytecode and bundled builds

• Added prerelease checking

• Added Docker mount improvements

• Added health monitor to terminate unhealthy processes

• Added extended developer documentation

Configuration and User Interface

Configuration Improvements

• Added import/export of JSON configuration

• Added override file support

• Improved parsing of optional arrays and nested config

• Added flags such as canBeUsedForEnergyTrading

• Updated battery settings (power limits, initial SoC)

• Improved SoC calculation and distribution logic

• Differentiated system configuration from process image

UI and Visualization

• Updated graphs to step-type with improved clarity

• Added horizontal reference lines

• Updated PV disabled state visibility

• Added scenario selection support

• Improved 24-hour views

Refactoring and Structural Improvements

• Reorganized algorithms and controllers into shared modules

• Removed unused controllers and dead code

• Simplified utility functions and naming

• Unified control logic for battery power distribution

• Cleaned formatting across major code sections

• Consolidated duplicated logic

• Improved fallback behaviour and error handling

Bug Fixes

Key issues resolved:

• Negative PV production values

• Incorrect unit conversions

• Unhealthy device handling bugs

• Forecast data mapping errors

• PMS and BMS register mapping issues

• Incorrect energy meter inversion

• Forecast and simulation alignment issues

• Influx logging inconsistencies

• Build failures and bundling issues

• Misreported power in Yuso integrations

• Oscillation prevention deadlocks

• Incorrect PV limit behaviour

• Missing trading state persistence