Changelog

Release Notes - End of August

The release of Vic AI, the assistant inside the platform, plus EMS controller network configuration managed from the platform, Smappee and Posevault hardware support, imbalance against day-ahead prices in one chart, and connection alarms for every trading provider.

Vic AI assistant

• Vic AI: the platform has an AI assistant. Vic answers questions about the platform and the energy topics around it, reads your own projects, devices, incidents and project configuration live, and links you straight to the screen where you can act. Answers come with the documentation pages they are based on, as clickable sources. Ask in Dutch, French or English and Vic answers in the same language. Vic only reads, it never changes a setting. Documentation

• Support ticket from the chat: when Vic cannot solve a question, a button appears under the answer to open a support ticket. The ticket carries an AI summary of the conversation, the full question-and-answer history and the project you had open, so a Voltmasters engineer picks it up with the context already in place. The ticket is only created by your click, never by Vic itself. The confirmation names the email address the ticket was filed under.
• Vic in the mobile app: the assistant is available in the mobile app as well. It knows which app screens exist and links to them, and sends you to the browser for a task that only exists in the web portal, such as device parameters or imbalance trading.

Device Management

• Smappee Genius Flex: the Genius Flex gateway is supported as an EV charger and as an energy meter, over the MQTT interface the gateway serves on the installation network. One platform device covers one connector, and the metering loads behind a gateway are found through device discovery. Documentation

• Smappee BESS: the Smappee storage system can be added as a power conversion system, with its battery as a linked child device, so one device covers the installation whatever the number of containers behind the gateway. Documentation

• Posevault BESS: the Posevault storage system is supported as a power conversion system with a linked battery management system. The battery capacity has to be filled in, because the device reports its power rating instead of its pack size. Documentation

• MQTT connections: a device reached over an MQTT broker asks for the address, the user name and the password.

• Manual override visible in the device list: devices with a manual override running or still planned carry an Override badge in the device overview.
  

  

Project settings & commissioning

• Network configuration of the EMS controller from the platform: the network settings of the controller are managed in the project settings and pushed to the controller. Gateway and DNS sit under an advanced section, with DNS servers as one comma-separated field. The confirmation screen lists every interface that will be taken over, including the ones you just added, and the controller raises an incident and rolls back if the applied configuration turns out to be unreachable.
  

  

• Fluvius Netflex RTU: choosing Netflex as the telecontrol provider provisions the RTU network addresses automatically.

Dashboards & reporting

• Imbalance against day-ahead: the imbalance tab of the energy prices block draws both market signals in one chart, the day-ahead price as a filled line and the imbalance price as a dotted line, both in EUR/MWh on the same axis so the two can be read against each other.
  

  

Reliability & control quality

• Frax EMS: the reactive setpoint reaches the inverter, and the system no longer reports every battery alarm when it has no alarm data. Documentation
• Dyness DH series: the integrated MPPT no longer switches on and off under a grid export limit. Documentation
• Hite: reactive power steering was added to the combiner box and single cabinet inverters. Documentation
• EV charging sessions: a finished session stops counting time, and the number of phases no longer outlives the session that reported it. Documentation

Release Notes - Late August

A large release: historical EV charging sessions, ORES telecontrol for Wallonia, a grid power target, energy cost per meter, Grid limiting per phase, a home-screen widget for the mobile app, a network check, and a long list of new hardware and control fixes.

EV charging

• Historical charging sessions: the EV dashboard has a new Historical charging sessions table. Every session the charger reports is kept: start and end, charge point and connector, duration, energy delivered, peak power, status, and the vehicle state of charge at start and end when the charger reports it. You can filter per connector and per status and export the selection as CSV. History starts on 20 August 2026 and only for EMS controllers that report sessions; for anything older the quarter-hour aggregation remains available. Documentation

• Charging decisions per connector: the latest control decision block on the EMS dashboard now also shows the setpoint the controller decided for each individual EV connector, instead of only the charge point as a whole.
• Site-level chargers: charging sites that are steered as one whole (Alpitronic HYC1000, ABB Terra Gateway Pro) no longer show a connectors tab, because there is nothing to configure per connector on them.
• EV charging on trading sites: the power boost reserve and the draw of chargers that are not managed by the EMS are now taken into account on sites that trade.

Device Management

Newly supported devices

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

• Alfen NG9: AC EV charger, up to 32 A per phase. Available on controllers from version 0.0.287. Documentation
• Alpitronic Hypercharger: the HYC50, HYC150, HYC200, HYC300 and HYC400 DC chargers (from controller 0.0.287), plus the HYC1000 cabinet, which is steered at station level with a single site budget and comes with its own load management alarm (from controller 0.0.329). Documentation
• ABB Terra Gateway Pro: a site controller in front of a group of ABB DC chargers. The EMS steers the site as a whole through the gateway. You configure the unit IDs of the chargers behind it, the grid topology of the site, and the charging current the gateway falls back to when it loses the EMS. New alarms report a charger behind the gateway that is offline, faulted or unreachable, and a site that fell back to its own budget. Available on controllers from version 0.0.320. Documentation
• Generic PLC energy meter: for installations where the meter is read by a PLC that republishes the measurements on Modbus TCP. Any meter can be brought into the platform this way. Available on controllers from version 0.0.320. Documentation
• PV on the Solis hybrid inverter: the solar field of a Solis hybrid battery inverter now appears automatically as a separate PV device with its own production, next to the battery. It comes with a set of new alarms for this inverter family, covering remote control, AC coupling, generator start and stop, and firmware mismatches. Available on controllers from version 0.0.328. Documentation
• Growatt grid-tied inverters (beta): the MIC-TL-X, MIN-TL-X, MOD-KTL3-X, MID-KTL3-X, MAC-KTL3-X and MAX-KTL3 series are selectable as beta models. Documentation
• AlphaESS: the STORION battery system now requires controller version 0.0.320 or later.

Adding and managing devices

• Deleted devices, and restoring them: the device overview has a new filter with a Deleted status. A deleted device can be restored from there, together with the references that were removed with it. The platform tells you when a restore is not possible, for example when the parent device no longer exists.

• Richer device filters: the device overview can now be filtered on status, brand or model, type, whether the device is controllable, and a minimum and maximum nominal power.
• IP address column: the device list has a new optional IP address column, next to the MAC address column.
• MAC address lookup: the controller is now asked directly for the MAC address of a device, including for child devices and for devices that were already in the fleet.

Telecontrol & grid operators

• ORES telecontrol (Wallonia): ORES can now be selected as a DSO RTU provider. The grid operator's RTU polls the EMS over Modbus RTU, sends an active and a reactive power setpoint per steered asset, and reads back the measurements of that asset and of the grid connection point. Documentation
• ORES watchdogs: the telecontrol settings gained an ORES watchdogs section where you map the hardwired watchdog pair exchanged with the ORES RTU: the watchdog read as a digital input, and the watchdog driven back as a relay output. While the input is active, ORES cannot send valid setpoints and the site falls back to its contractual power.

• Grid operator comparison: the "Fluvius comparison" page is now called Grid operator comparison, because it compares the local grid meter with the official quarter-hour values of whichever operator applies.

EMS dashboard & battery planning

• Grid power target: a project can now be balanced towards a small standing import instead of towards 0 kW. This is meant for sites where an external device curtails solar production to prevent injection: the extra import makes that device release production, which the battery then stores. A second setting keeps the target capped at the current on-site generation, so nothing is bought overnight. On an ordinary installation the right value stays 0 kW. Available on controllers from version 0.0.323. Documentation
  

  

• Strategy shown in the control mode block: on self-supply sites the control mode block now names the strategy that is actually configured, instead of only the control mode.

• Live data after a background tab: devices no longer appear offline after the browser tab has been in the background, the energy flow diagram reconnects on its own, and the live connection is recovered without having to switch tabs first.

Dashboards & reporting

• Energy cost per meter: every meter on the energy meter dashboard now shows what its grid import cost, what its export earned, and the net of the two, valued at the project's contract prices for the selected period. The disclaimer behind the title's tooltip says exactly what the amounts cover: the volumetric part of the contract only, no capacity tariff or fixed charges, no imbalance, and an indication rather than a settlement. Documentation
  

• Negative prices in the price graph: the energy price graph now colours the area below zero separately, so negative prices are visible at a glance.
  

  

Mobile app

• Home-screen widget: the app can show a widget on the phone's home screen with the state of charge, grid power, and PV, wind and EV power. A reading is left out entirely when the site does not have that hardware, so the widget always matches the installation. The values come from the same source as the graphs in the app, so the widget cannot disagree with what you see after tapping through, and it includes a small grid sparkline over the past hours.

Incidents & Notifications

• Who muted an alarm: the incident list shows a Muted by column, so it is visible who silenced an alarm type.

Project settings & commissioning

• Network check: A check of what the EMS controller can reach, grouped per purpose: name resolution, time synchronisation, platform and measurement data, software updates, and remote access. Each group that fails comes with a concrete recommendation naming the port and the addresses to open, and the verdict says in one line whether action is needed. The results distinguish TCP from UDP, and the page waits for the answer instead of showing a stale one.

• Commissioning checklist: we expanded the internal validation procedure. These are the validation checks our engineers are analysing when you mark your project as 'ready for validation'.

• Energy cost settings for clients: clients can now reach the net settings and grid meter settings of the projects they may edit. Before, this was only for installers.

Public API

• Charging sessions endpoint: the EV charging sessions of a project can be read over the API, newest first and paginated, filtered on a time window, on a single charge point and on session status.
• Quarter-hour EV energy endpoint: the energy charged per charge point can be read per clock-aligned quarter of an hour, over a window of up to 31 days per call, reaching back as far as the charge point has been reporting.

Reliability & control quality

• Dyness DH series: Adapter optimization. Documentation
• SAJ CHS2: Adapter optimization. Documentation
• Elecnova ECO: the start sequence follows a strict state machine with a power-off dwell, so the inverter no longer flaps between standby and running, and a "powered off" alarm no longer fires while a start is in progress. Documentation
• Sinexcel DC charger: a stale idle setpoint no longer latches the charger at plug-in, the charger can start a session again, and no power limits are left latched after the adapter stops. Documentation
• Grid limiting: the limit is now calculated per phase against the worst phase instead of against the average, so an unbalanced installation stays within its connection.

Release Notes - Mid August

A small release: two new energy meters, PV production on the integrated MPPT of the Dyness DH series, explained battery strategies in the planning modal, and a set of device and alarm fixes.

Device Management

Newly supported devices

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

• Acrel ADL400: three-phase DIN-rail energy meter, usable as grid meter or submeter. Available on controllers from version 0.0.315. Documentation
• Schneider PowerLogic PM5000: energy meter covering the whole PM51xx to PM56xx family. Available on controllers from version 0.0.317. Documentation
• PV on the Dyness DH100F and DH200F: the solar field on the battery's integrated MPPT now appears automatically as a separate PV device under the battery system, with its own production and yield. Documentation

Device fixes

• Dyness DH series: the status of the battery is now shown with readable labels, the MPPT yield is divided over the connected strings in proportion to their capacity, string readings stay visible while the MPPT is idle, and a reversed string current no longer shows up as an impossible amount of solar production. Detection of the integrated MPPT also works when the installation is read out at night.
• SAJ CHS2: the grid meter and battery values are read from the correct registers, a healthy meter is no longer reported as faulty right after start-up, and no meter values are shown while the meter is not on the bus. Documentation
• GoodWe SEC3000C: the solar capacity is no longer fixed on a value measured while the inverter was still ramping up. Documentation
• Huawei SmartLogger: on plant level the battery is now also controlled when the site has a shortage instead of a surplus. Documentation
• Battery readings: an implausible state-of-charge reading no longer discards the rest of the battery data for that cycle; the last known charge level is kept instead.

EMS dashboard & battery planning

• Strategies explained: every strategy in the battery planning modal now has an info icon that describes what the controller actually does during such a block. The "Automatic" hint moved into the same tooltip, so all options are explained the same way.
  

Incidents & Notifications

• No more emergency alerts from test incidents: incident types that are still being field-tested no longer trigger emergency notifications. They are still recorded and remain visible to administrators.
• Calmer oscillation damping: fewer false detections, one report per episode instead of a report per occurrence, no reports when nothing was actually damped, and damping is only released once the installation really stops oscillating.

Reliability & control quality

• Silent devices detected faster: the controller monitors on its own whether every device keeps delivering fresh data and reports a device that falls silent.

Release Notes - Early August

This release adds a charge-level projection to the battery plan, battery planning in the mobile app, more supported hardware, an automatically detected MAC address when adding devices, oscillation damping for battery control, and a broad set of interface, incident and reliability improvements.

EMS dashboard & battery planning

• Charge-level projection: next to the "Plan" button of the battery plan there is now a Charge level button. It asks the controller for its projected state of charge and shows the curve in a modal, together with the covered time range and the minimum/maximum charge band of the battery. Available on controllers from version 0.0.314.
  

Device Management

Newly supported devices

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

• AlphaESS STORION-LC-TB125: battery system (PCS and BMS), including the grid meter and PV inverter that sit behind it and are read out through the battery system. Documentation
• Hoymiles HoyUltra 2: battery system (PCS). Documentation
• Schneider EVlink Pro AC: AC EV charger, with a new connector fault incident type that reports a faulty charging connector. Documentation

Adding and managing devices

• MAC address read automatically: when the Add Device wizard probes a device, the EMS controller now reports the MAC address it reads off the network.
• MAC address column: the device list has a new optional MAC address column. The address is refreshed automatically when a device's connection settings change.
• Slave ID prefilled: when adding a device, the Modbus slave ID is prefilled with the value most commonly used by comparable devices.
• Clearer device overviews: both device lists are now ordered by project, then type, then name, and the cross-project overview shows the project column by default.

Mobile app

• Battery planning on mobile: the quarter-hour battery plan can now be read and adjusted from the mobile app, just like on the web dashboard.
• Two days of energy prices: the price graph can now show today and tomorrow instead of a single day.
• Notifications follow the incident: a push notification is dismissed automatically once the incident it announced is resolved.

Incidents & Notifications

• Recurring incidents recognised correctly: a repeated incident is now matched on the controller's own key instead of on its message text, so a reworded message no longer leaves the previous occurrence open and unrelated incidents no longer close each other.
• Readable incident lists: descriptions are truncated to one line in the list, and the full description appears immediately on hover.
• Cleaner inbox: notifications for incidents that were removed by the retention cleanup are now removed as well, so resolved items no longer reappear as unread.

Reliability & control quality

• Oscillation damping: the controller detects power oscillations and damps them, and raises an incident when it does. Telecontrol emergency stops always take priority: they bypass the damping and hold windows completely, so a grid-operator stop is never delayed.
• Isuna battery systems: several control fixes: the EMS setpoint is followed while charging, PV curtailment works when part of the strings are already off, battery power is reported without PV conversion losses, and no control state survives a restart.
• PV communication-loss fallback: the fallback power limit for SunSpec PV inverters is armed more reliably and released correctly when the adapter stops.

Interface & navigation

• Faster-feeling pages: charts and cards now show a skeleton in the shape of the content while data loads, and the loading overlay disappears as soon as the chart appears.
• Overview rows open the project: clicking anywhere on a row in the project overview opens that project's dashboard.
• Automatic reload after an update: when a new version is deployed while you have a page open, the page reloads itself once instead of showing an error.

Accounts

• Smoother invitations: a user who registers through a project invitation is signed in right away, and the terms and conditions are only requested after the invitation has been accepted.

Release Notes - Late July

This release introduces a fully reworked battery planning view with per-quarter overrides, day-ahead prices for 22 European bidding zones, Portuguese as application language, RTU event history for telecontrol, remote battery restart, and a broad set of chart, reporting and reliability improvements.

Languages

• Portuguese is now available as an application language.
• Invitations in the recipient's language: when inviting users or partners you can now pick the language of the invitation. The invitation emails also got a refreshed, responsive design.

EMS dashboard & battery planning

• Reworked battery planning: the battery action plan is now shown per quarter-hour on the dashboard, with the past rendered as a solid read-only band and clearer, translated reasons in the tooltips. The installation graphs were merged into a single view.

• Per-quarter strategy overrides: on cost-optimization projects you can now override the planned battery behaviour per quarter-hour directly from the plan, including a power input for "follow scheduled power".

• Manual reactive-power override for battery systems (PCS).
• Energy-price block: a predicted price range is now visualised in the graph, imbalance prices are only shown for countries that actually have them, and imbalance prices are displayed on market time.

• The battery and PV trading state now reflects the controller's actual steering intent.

Device Management

Newly supported devices

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

• Huawei LUNA2000-215 Smart String ESS: battery system (PCS). Documentation
• Solis hybrid inverter: battery PCS. Documentation
• Sinexcel PWS1-1725KTL-H: battery PCS. Documentation
• Pylontech LEMS: BMS support (previously listed as Pylontech M5). Documentation
• Risen Storage V2: per-stack BMS devices are now available under the PCS. Documentation

Device features

• Remote battery restart: supported battery systems can now be restarted from the Actions page on the device detail.
• IO port event history: the device ports page has a new History tab showing port on/off events with filters, pagination and exact timestamps.

• Configurable communication-loss fallback: the fallback power limit applied when communication with a PV inverter or EV charger is lost can now be configured per device.
• Add Device wizard: parameters now reload automatically when you pick a different adapter for custom devices.
• Clearer audit trail: device parameter and model changes are logged more completely, the activity log can be filtered by user and device, and search also matches deleted device parameters.
• Devices that are used as a proxy target are now protected against accidental deletion.
• Controllable load devices now have their own icons.

Telecontrol (DSO RTU)

• RTU event history: the telecontrol page now shows the history of RTU constraint events, including reason codes and date filtering in your own timezone.

• Per-device-type production setpoints are now shown in the telecontrol state.

Energy prices

• Day-ahead prices for 22 bidding zones: coverage was expanded with Denmark, Sweden, Norway, Ukraine and more; Italy was split into its seven bidding zones; and missing prices for Luxembourg and Italy were fixed. One year of historical prices was backfilled.
• Gridual imbalance trading is now available in production, including a dedicated energy-trading Pro dashboard.
• Yuso imbalance trading: battery and PV can now be controlled simultaneously, with separate PV and battery connections.

Charts & Reporting

• CSV export on every chart: all dashboard charts now have an export button to download the underlying data.

• Chart readability: power axes keep a sensible minimum range so small variations no longer look dramatic, small battery energy values scale correctly, and the cursor and tooltips of stepped price series were improved.
• Timezone-correct date filters: report and dashboard date filters now interpret the chosen dates in the right timezone, so viewers in a different timezone no longer see the previous calendar day.
• Fluvius comparison now includes consumption and production graphs.
• Energy-meter dashboard: smarter default grid-meter selection and meter icons that match the measurement type.
• Menu: the reports (including the new Savings dashboard) were regrouped under a Reports menu section.

Reliability & control quality

• More accurate PV forecasts: forecast calibration against measured production was improved, curtailed periods are handled correctly, and forecast diagnostics were added.
• Clearer grid-limit incidents: grid-limit warnings now use a limit-proportional margin, a warning severity, and an actionable message.
• Fixed a PV curtailment deadlock and export-limit oscillations that could cause PV output to swing between zero and full capacity.
• Stability fixes for the SMA Sunny Tripower, Solis hybrid, Elecnova and Huawei Luna device integrations.
• Controller network configuration: host network interfaces can now be managed remotely.

Incidents & Notifications

• Incident emails only for critical incidents: like push notifications, incident emails are now limited to critical incidents to reduce noise.

Release Notes - Mid-July

This release adds new languages (Spanish, French and German), wind turbine support, a Spanish time-of-use energy contract, more supported hardware, smarter peak-shaving and sub-meter load management, and a broad batch of dashboard, device-settings and reliability improvements.

Languages

• Spanish, French and German are now available as application languages, alongside the existing ones, both in the web platform and the mobile app. You can switch language in your profile, and the interface (including energy-price and device copy) is fully translated.

Device Management

Newly supported devices

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

• C-Battery Cbat-IQ: battery system (PCS), including multi-bank support. Documentation
• Elecnova ECO-E233LS: added PCS and BMS model support. Documentation
• EME eCON+ energy meter: energy metering support, including proxy/sub-meter handling behind the eCON+. Documentation
• Solar irradiance meters (Soluzione Solare, IMT Technology): measure on-site solar irradiance and derive a PV power curve from it for more accurate solar output. Documentation
• Victron EasySolar-II (beta): battery inverter (PCS). Documentation
• Sungrow SG125CX-P2 (beta): PV inverter. Documentation

Device settings

• Cleaner device tables: updated default visible columns and removed the firmware-version column for a clearer overview.

Wind

• Wind turbine support: wind turbines can now be added as a device type, with turbine parameters (hub height, rotor diameter, cut-in/cut-out speed, power curve). The platform produces wind-output forecasts from weather data, calibrated against measured production, and includes wind generation in the battery scheduling and grid-limit calculations. Documentation
  

Energy Management

Contracts & pricing

• Spanish time-of-use energy contract (P1-P6): a new fixed contract type that applies the Spanish CNMC 3.0TD/6.1TD tariff periods per quarter-hour (season, hour and weekend/holiday, Madrid time). Only offered for Spanish projects. Documentation

Battery & load control

• Peak-shaving reserve: the former "power boost reserve" (only used for DC fast charging) is now a general peak-shaving reserve that keeps grid import under its limit for any load. It is applied consistently across self-supply and cost-optimization. Documentation
  

  

• Sub-meter load management: load management now enforces limits across the full metering hierarchy. When a (sub-)meter approaches its limit, the platform first discharges the battery and curtails EV charging before shedding controllable loads, keeping each meter within its limit.
  

EMS dashboard

• Clearer control-mode block: added labels for injection and PV-bypass schedule reasons, PV standby / full-production / curtailment states, overrule direction, and a "disabled" / "external control" status.
  
• Energy-price block: price blocks can now be expanded, EPEX prices are shown in the same block, and the chart is bound to a single day for easier reading. Documentation
  
• Removed the standalone imbalance-price display and graph from the dashboard and trading pages.

Reliability & control quality

• More accurate battery scheduling: injection and grid-charge planning were refined so reserved energy is no longer spent too early and cheap-window arbitrage is dispatched correctly.
• Better Victron control: DC-coupled MPPT curtailment and VE.Bus battery control are more stable on single-, two- and three-phase systems.

Metering & Reporting (Fluvius)

• Fluvius comparison: reworked the comparison view with clearer date-range and mandate selection, better anomaly detection, and terminology updated from "controller" to "local measurement" for clarity. Documentation
  

Pro Dashboards

• Clearer Pro dashboards: graph legends now show device names instead of technical identifiers, and the Algorithm and EV-charging dashboards have filters at the top so you can select the devices and series you want to see.
  

API

• Forecast: You can now fetch all forecast data via API.

Incidents & Notifications

• Only critical incidents are pushed: mobile push notifications are now limited to critical incidents to reduce noise.
• Fewer false alarms: the stale-heartbeat threshold was increased from 15 to 30 minutes, and missing consumption predictions now self-heal before an incident is raised.

Mobile app

• The project dashboard now shows the controller software version and wind turbine data.
• Spanish language was added.

Telecontrol (DSO RTU)

• EME eCON+ as telecontrol provider: the eCON+ can now be used as a telecontrol provider over Modbus. Documentation

Projects & reporting

• Country filter on projects: the project overview can now be filtered by country.
• Detailed consumption export: missing minutes are now added as empty rows so every interval is present in the export.

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 Version 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