KOSTAL Inverters

Integration with KOSTAL hybrid inverter systems for energy storage, photovoltaic production, and grid monitoring.

Overview

This bundle provides support for two KOSTAL inverter product families:

  • KOSTAL PIKO: Hybrid inverter with integrated battery management, photovoltaic DC conversion, and grid meter

  • KOSTAL Plenticore: Hybrid inverter with energy storage, PV production, and integrated Smart Energy Meter (KSEM)

Both systems communicate via standard network protocols and support read-only (fast internal control) and read-write (slow external control) operating modes where applicable.

Supported Devices

Components

This bundle implements OpenEMS Components for two KOSTAL inverter families:

KOSTAL PIKO Family

The PIKO family components communicate via HTTP/REST API to the inverter.

PIKO Core Component

Name: KOSTAL PIKO Core

Factory-PID: Kostal.Piko.Core

Implemented Natures/Interfaces

  • KostalPikoCore

  • OpenemsComponent

  • EventHandler

Description: Core communication component. Always required to establish communication with the inverter.

Configuration:

  • id (String): Component ID for unique identification (default: "kostalPiko0")

  • alias (String): Human-readable alias for the component

  • enabled (Boolean): Enable/disable this component (default: true)

  • ip (String): IP address of the PIKO inverter (required)

  • unitID (Integer): Modbus Unit ID (default: 0xff)

  • port (Integer): Port for communication (default: 81)

PIKO ESS Component

Name: KOSTAL PIKO ESS

Factory-PID: Kostal.Piko.Ess

Implemented Natures/Interfaces

  • KostalPikoEss

  • SymmetricEss

  • OpenemsComponent

Description: Energy storage system component for battery control and monitoring.

Configuration:

  • id (String): Component ID for unique identification (default: "ess0")

  • alias (String): Human-readable alias for the component

  • enabled (Boolean): Enable/disable this component (default: true)

PIKO Charger Component

Name: KOSTAL PIKO PV-Charger

Factory-PID: Kostal.Piko.Charger

Implemented Natures/Interfaces

  • KostalPikoCharger

  • EssDcCharger

  • OpenemsComponent

  • ModbusSlave

Description: DC Charger/MPP tracker for photovoltaic system.

Configuration:

  • id (String): Component ID for unique identification (default: "charger0")

  • alias (String): Human-readable alias for the component

  • enabled (Boolean): Enable/disable this component (default: true)

PIKO Grid Meter Component

Name: KOSTAL PIKO Grid-Meter

Factory-PID: Kostal.Piko.GridMeter

Implemented Natures/Interfaces

  • KostalPikoGridMeter

  • ElectricityMeter

  • OpenemsComponent

Description: Grid meter component for monitoring grid power.

Configuration:

  • id (String): Component ID for unique identification (default: "meter0")

  • alias (String): Human-readable alias for the component

  • enabled (Boolean): Enable/disable this component (default: true)

KOSTAL Plenticore Family

The Plenticore family components communicate via Modbus TCP.

Plenticore ESS Component

Name: KOSTAL Plenticore ESS

Factory-PID: Kostal.Plenticore.Ess

Implemented Natures/Interfaces

  • KostalManagedEss

  • ManagedSymmetricEss

  • SymmetricEss

  • ModbusComponent

  • TimedataProvider

  • EventHandler

  • OpenemsComponent

Description: Hybrid energy storage system (battery) with management capabilities.

Configuration:

  • id (String): Component ID for unique identification (default: "ess0")

  • alias (String): Human-readable alias for the component

  • enabled (Boolean): Enable/disable this component (default: true)

  • readOnlyMode (Boolean): Prevent power commands to inverter (default: true)

  • controlMode (Enum): Control mode - INTERNAL or EXTERNAL (default: INTERNAL)

  • minsoc (Integer): Minimum battery state of charge in % (default: 5)

  • watchdog (Integer): Watchdog timeout in seconds (default: 30)

  • tolerance (Integer): Tolerance in watts to skip Modbus writing (default: 50)

  • modbus_id (String): ID of Modbus bridge (default: "modbus0")

  • debugMode (Boolean): Enable debug mode (default: false)

Plenticore PV-Inverter Component

Name: KOSTAL Plenticore PV-Inverter

Factory-PID: Kostal.Plenticore.PV-Inverter

Implemented Natures/Interfaces

  • KostalPvInverter

  • ManagedSymmetricPvInverter

  • ElectricityMeter

  • ModbusComponent

  • OpenemsComponent

  • TimedataProvider

Description: Hybrid inverter component for photovoltaic production monitoring and power limiting.

Configuration:

  • id (String): Component ID for unique identification (default: "pvInverter0")

  • alias (String): Human-readable alias for the component

  • enabled (Boolean): Enable/disable this component (default: true)

  • readOnly (Boolean): Prevent power-limitation commands to inverter (default: true)

  • modbus_id (String): ID of Modbus bridge (default: "modbus0")

  • modbusUnitId (Integer): Modbus Unit ID (default: 71)

Plenticore KSEM Component

Name: KOSTAL Smart Energy Meter (KSEM)

Factory-PID: Kostal.Plenticore.KSEM

Implemented Natures/Interfaces

  • KostalGridMeter

  • ElectricityMeter

  • OpenemsComponent

  • ModbusComponent

  • TimedataProvider

Description: Smart Energy Meter (KSEM) for grid or inverter-based energy monitoring.

Configuration:

  • id (String): Component ID for unique identification (default: "meter0")

  • alias (String): Human-readable alias for the component

  • enabled (Boolean): Enable/disable this component (default: true)

  • modbus_id (String): ID of Modbus bridge (default: "modbus0")

  • modbusUnitId (Integer): Modbus Unit ID (default: 71)

  • viaInverter (Boolean): Read meter data via inverter (default: false)

  • wordwrap (Boolean): Use word-wrapped conversion (default: false)

  • type (Enum): Meter type - GRID, PRODUCTION, or CONSUMPTION (default: GRID)

Source Code