Goodwe 30kw Hybrid 3-Phase HV Inverter

GoodWe 30kW Three-Phase Hybrid Inverter – GW30K-ET

The GoodWe GW30K-ET is a 30kW three-phase hybrid inverter designed for
larger residential properties and small commercial or industrial
installations. It combines solar power conversion, high-voltage battery
integration and energy management in one wall-mounted unit.

With three MPPTs, support for a substantial solar array and a dedicated
three-phase backup output, the GW30K-ET provides a practical foundation
for properties looking to use more solar energy, manage electricity
demand and maintain selected loads during grid interruptions.

Key Features

• 30kW three-phase hybrid inverter
• Designed for compatible high-voltage lithium-ion battery systems
• Three MPPTs with two PV string inputs per MPPT
• Maximum recommended PV input power of 45,000W
• 30kVA nominal three-phase backup output
• Peak shaving and integrated dry contact for external load control
• Maximum inverter efficiency of 98%
• IP66-rated, wall-mounted enclosure
• Wi-Fi and app-based monitoring interface

Solar Power for Larger Properties

The GW30K-ET supports a maximum PV input power of 45,000W, allowing the
solar array’s rated capacity to be larger than the inverter’s nominal
30kW output. The inverter does not continuously deliver 45kW of AC power.
Actual solar production depends on the panels, orientation, shading,
weather and installation conditions.

PV Input Specifications

• Maximum PV input power: 45,000W
• Maximum PV input voltage: 1,000V
• MPPT operating voltage range: 200–850V
• PV start-up voltage: 200V
• Number of MPPTs: 3
• PV string inputs: 6, with 2 strings per MPPT
• Maximum input current: 30A per MPPT
• Maximum short-circuit current: 38A per MPPT

The number of panels that can be connected depends on their electrical
specifications and the string design. The installer must check operating
voltage, cold-weather open-circuit voltage, input current and
short-circuit current against the inverter’s limits.

High-Voltage Battery Storage

Connect the GW30K-ET to a compatible high-voltage lithium-ion battery
system to store energy for use when needed. Battery storage can help
support selected loads during grid outages and increase the use of
solar energy generated on site.

Battery Input Specifications

• Battery type: lithium-ion
• Nominal battery voltage: 500V
• Battery operating voltage range: 200–800V
• Battery inputs: 2
• Maximum continuous charging current: 50A per input
• Maximum continuous discharging current: 50A per input
• Maximum charging power: 15kW per input
• Maximum discharging power: 15kW per input

The battery’s own voltage, current, power and management-system limits
also apply. A compatible battery does not automatically provide the
inverter’s full 30kW battery discharge capacity.

Battery Compatibility

GoodWe’s compatibility overview lists selected GoodWe Lynx Home F and
F G2, BYD Battery-Box Premium HVS and HVM, and Dyness Tower battery
configurations for the ET 15–30kW series. Specific models, module
quantities, firmware and communication requirements must be confirmed
before ordering.

The GW30K-ET is designed for compatible high-voltage lithium-ion battery
systems. Standard 48V battery banks, lead-acid and gel batteries are not
suitable for direct connection.

Three-Phase Backup Power

The inverter has a nominal three-phase backup output of 30kVA. It can
support connected backup circuits during a grid interruption when paired
with a suitably sized and compatible battery system.

• Nominal backup apparent power: 30kVA
• Maximum backup apparent power: 36kVA for 60 seconds, as specified by GoodWe
• Nominal backup output voltage: 380/400V
• Nominal backup frequency: 50/60Hz

Available backup power and runtime depend on the battery’s discharge
capability, state of charge, connected loads and system design. Loads,
starting currents and distribution across the three phases must be
assessed by the installer.

Energy Management and Monitoring

Peak Shaving

The inverter includes peak-shaving functionality to help manage the
power drawn from the grid during periods of higher demand. Its benefit
depends on the site’s load profile, battery capacity and system settings.

External Load Control

An integrated dry contact can be used to activate suitable external loads,
such as a heat pump, through an appropriately designed control circuit.
This can help coordinate certain loads with the property’s energy strategy.

System Monitoring

The GW30K-ET uses a Wi-Fi and app-based user interface for monitoring.
It supports RS485 and CAN communication with the battery management
system, and RS485 communication with a compatible meter.

Protection and Installation

The inverter includes a range of integrated protection and monitoring
functions to support a properly designed solar installation.

• Type II DC surge protection
• Type III AC surge protection
• PV insulation resistance detection
• PV string current and residual current monitoring
• PV and battery reverse-polarity protection
• Anti-islanding protection
• AC overcurrent, short-circuit and overvoltage protection
• Integrated DC switch and remote shutdown
• Optional arc-fault circuit interruption and rapid shutdown functions

Optional functions or devices may need to be purchased separately.
External switchgear, cabling, earthing and other protection must be
specified for the installation and applicable requirements.

Physical Specifications

• Dimensions: 520 × 660 × 220mm (W × H × D)
• Weight: 54kg
• Ingress protection rating: IP66
• Cooling: smart fan cooling
• Mounting: wall mounted
• Operating temperature range: −35°C to +60°C

Suitable Applications

The GoodWe GW30K-ET is suited to projects requiring a three-phase hybrid
inverter, including larger homes, farms, guesthouses, workshops and
small commercial or industrial properties. The final system size should
be selected according to the site’s electricity consumption, connected
loads, available roof or ground space and backup requirements.

Frequently Asked Questions

Does the GoodWe 30kW inverter include solar panels and batteries?

This product is the inverter. Solar panels, batteries, mounting equipment,
cabling and installation are supplied separately unless included in a
specified package or quotation.

Can I connect a 48V battery to the GW30K-ET?

No. A standard 48V battery bank is outside this inverter’s specified
high-voltage battery operating range. Use a compatible high-voltage
lithium-ion battery system.

How many solar panels can I connect?

The inverter supports a maximum PV input power of 45,000W, but the
permitted number of panels depends on their voltage, current and the
proposed string arrangement. The final design must remain within all
inverter input limits.

Can this inverter provide power during load shedding?

Yes. It has a dedicated three-phase backup output. The loads it can
support and the available runtime depend on the connected battery,
available solar power and installation design.

Is every high-voltage battery compatible?

No. The battery’s voltage alone is not enough to establish compatibility.
The exact model, BMS communication, module configuration and firmware
must be checked against GoodWe’s current compatibility information.

Need Help Selecting a Battery or Solar Array?

Contact JC Solar Panels for assistance with selecting compatible
batteries, solar panels and equipment for your GW30K-ET installation.
We can also assist with a quotation based on your property’s requirements.