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Solar inverter · GoodWe · GT series · CEC approved August 2025

GoodWe GW100K-GT

Name: GoodWe GW100K-GT
Brand: GoodWe
SKU: goodwe-technologies-co-ltd-gw100k-gt-as4777-2-2020

CEC listing: GW100K-GT (AS4777-2 2020)

A 100 kW three-phase solar inverter.

Commercial-scale inverter

At 100 kW, this is built for businesses and large sites. A typical home inverter is 5–10 kW.

Browse home-size inverters →

Installed in Perth, typical: ~$29,997; Estimate for the inverter alone — your quote will vary
Rated power: 100kW; How much solar it can run at once — a large roof
Battery-ready: No; Solar-only: adding a battery later means a second inverter

Datasheet (PDF)Compare inverters See the whole GT series

Spotted something outdated?

What we can tell you

Read from the figures on this page. No review written yet.

It is a solar-only inverter: adding a battery later means a second inverter or an AC-coupled battery.
It needs a three-phase supply — check your switchboard, or ask your installer.
We can't confirm it is on Synergy's approved list — a battery paired with it needs that for the WA Battery Scheme, so ask your installer.
It is CEC-approved, which a new install needs to qualify for STCs.

Key specs, in plain terms

The numbers that matter for a home. The full datasheet is below.

Rated power How much solar it can turn into usable power at once: 100kW
Max efficiency How much of the solar you make reaches the house: 99.0%
Phases Needs a three-phase supply — check your switchboard: 3-phase
Type Runs solar only: Solar
Warranty How long GoodWe Technologies Co Ltd stands behind it: 5yr

Full datasheet

Every figure on file for the GoodWe GW100K-GT, by section.

Full datasheet, by section
Specification	Value
Efficiency
Max efficiency	99%
European efficiency	98.3%
Physical
IP rating	IP66
Installation requirements
Cable gauge	1 mm²

Parsed from the manufacturer datasheet, install manual, and warranty document. Confirm against the linked PDFs before relying on a value for a quote or installation.

Features & compatibility

Battery compatible

Backup capable

CEC approval details

CEC approved

13 Aug 2025

Approval expiry

13 Aug 2028

Status

Active

Eligible for rebates

Yes

About GoodWe Technologies Co Ltd

Years in AU Market

12 years

Australian Office

Yes

CEC-Approved Batteries

CEC-Approved Panels

168

What it costs in Perth

Typical installed, inverter only

$19,998–$39,996

Estimate confidence: Medium

Prices vary by installer, configuration and site complexity. Get exact quotes from installers you choose.

Explore your options

Compare quotes from installers you choose

WA compliance

Synergy approved list: Not confirmed
ESM compliant: Check

Western Power approval is required for every grid-connected install. Under Emergency Solar Management, a new system must be remotely manageable, or take an export limit instead — ask your installer to confirm this inverter’s ESM status.

Australian office

Has local presence

Website

www.goodwe.com.au

12 years in Australian market

How it compares

The GoodWe GW100K-GT against the closest-power inverters from other brands.

Specification	GoodWe GW100K-GTGoodWe	GoodWe GEP100-10GoodWe	GoodWe GW100K-HTGoodWe

Rated power?	99.99 kW	99.99 kW	99.99 kW
Max efficiency?	99.0%best value	0.0%	0.0%
MPPT trackers?	Not verified	Not verified	Not verified

Phases	Three-phase	Single-phase	Three-phase
Type	Solar	Solar	Solar
Battery ready	No	No	No
Warranty	5 years	Not verified	Not verified

Specs from the CEC register and datasheet enrichment. Indicative — confirm exact figures with your installer.

Documents

5-year inverter warranty

GoodWe GW100K-GT

This warranty covers defects in materials and workmanship for five years. It excludes damage caused by improper installation or extreme environmental conditions. Claims can be initiated through the manufacturer's website.

AI-summarised from the manufacturer warranty document. Always confirm against the linked PDF before relying on it for a claim.

Coverage shape: Pro-rata — value reduces with age
If you sell the home: Transfers to the next homeowner
What voids it: The warranty is void if the inverter is installed by non-accredited technicians, or if it is modified in any way.
Environment limits: The warranty does not cover damage from extreme environmental conditions including salt exposure, excessive heat, or flooding.

Read the official warranty document (PDF)

Fault & error codes — GoodWe GW100K-GT

From the install manual

10 documented

Showing 10 of 10. The official install manual is the authoritative source — always confirm before acting.

DC-SPDcriticalCall your installer
Manual (PDF)
Lightning strike detected
Likely cause
The inverter is struck by lightning.
What to do
Disconnect the AC output switch and DC input switch, then connect them 5 minutes later. Contact the dealer or after-sales service if the problem persists.
EEPROM FailcriticalCall your installer
Manual (PDF)
Internal memory failure
Likely cause
The internal memory Flash is abnormal.
What to do
Contact the dealer or after-sales service.
GFI Chk FailcriticalCall your installer
Manual (PDF)
Ground Fault Detection failure
Likely cause
The sampling of the GFCI HCT is abnormal.
What to do
Contact the dealer or after-sales service for assistance.
PV Reverse FaultcriticalCall your installer
Manual (PDF)
Incorrect PV string connection
Likely cause
The PV string is connected in reverse order.
What to do
Check whether the PV strings are connected reversely and correct the connections.
SPI Comm FailcriticalCall your installer
Manual (PDF)
Communication failure with the SPI chip
Likely cause
The chip is not powered on or the program version is wrong.
What to do
Disconnect the AC output switch and DC input switch, then connect them 5 minutes later. Contact the dealer or after-sales service if the problem persists.
Fac FailwarningCall your installer
Manual (PDF)
Grid frequency out of range
Likely cause
The utility grid frequency is out of the allowed range.
What to do
If the problem occurs frequently, check whether the grid frequency is within the permissible range and contact the local power company if necessary.
Night DCSPS FaultwarningCall your installer
Manual (PDF)
Temporary environmental issue
Likely cause
Temporary abnormality caused by environmental factors or internal components are damaged.
What to do
Disconnect the AC output switch and DC input switch, then connect them 5 minutes later. Contact the dealer or after-sales service if the problem persists.
PID ErrorwarningCall your installer
Manual (PDF)
PID module abnormality
Likely cause
Abnormal Ground or PID module is abnormal.
What to do
Check whether the DC wirings and AC wirings are abnormal or if the PID module is faulty, and contact after-sales service if needed.
Relay FailwarningCall your installer
Manual (PDF)
Relay malfunction
Likely cause
The relay is abnormal or short-circuited.
What to do
Contact the dealer or after-sales service for further assistance.
Vac FailurewarningCall your installer
Manual (PDF)
Grid voltage out of range
Likely cause
The utility grid voltage is out of the allowed range.
What to do
Check whether the AC output voltage of the inverter meets the grid requirements and ensure correct wiring.

Part of the GoodWe GT series

Compare every GoodWe GT variant side by side →

More GoodWe Technologies Co Ltd Inverters

GEH10-1U-10 (AS4777-2 2020)

10 kW · 1φ

GEH15-3U-10 (AS4777-2 2020)

15 kW · 1φ

GEH20-3U-10 (AS4777-2 2020)

20 kW · 1φ

GEH25-3U-10 (AS4777-2 2020)

25 kW · 1φ

GEH29.9-3U-10 (AS4777-2 2020)

29.9 kW · 1φ

GEH5.0-1U-10 (AS4777-2 2020)

5 kW · 1φ

View all GoodWe Technologies Co Ltd inverters

More from GoodWe Technologies Co Ltd

Other CEC-approved products from GoodWe Technologies Co Ltd available in Australia.

GoodWe Technologies Co Ltd Batteries

GW100KWH-D-10

100.8 kWh · LFP

GW102.4-BAT-AC-G10

100 kWh · LFP

GW112.6-BAT-AC-G10

110 kWh · LFP

GW5.1-BAT-D-G20

5 kWh · LFP

GW5.1-BAT-D-G21

5 kWh · LFP

GW6.0-BAT-D-G20

5.9 kWh · LFP

View all GoodWe Technologies Co Ltd batteries

GoodWe Technologies Co Ltd Solar Panels

BMM-T3/108A(505W) (IEC 61215-2021)

505W

BMM-T3/108A(510W) (IEC 61215-2021)

510W

BMM-T3/108A(515W) (IEC 61215-2021)

515W

BMM-T3/120A(565W) (IEC 61215-2021)

565W

BMM-T3/120A(570W) (IEC 61215-2021)

570W

BMM-T3/120A(575W) (IEC 61215-2021)

575W

View all GoodWe Technologies Co Ltd panels

View full GoodWe Technologies Co Ltd manufacturer profile

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Get a quote from an installer from our network that covers your area. You choose whether to act on it. No obligation.

About this data

All inverter specifications are sourced from the CEC Approved Products Register. Specifications are provided as published by the CEC and may differ from manufacturer datasheets. Verify current specifications with the manufacturer or your installer before purchasing. Not all listed models may be currently available in Western Australia.

Solar inverter · GoodWe · GT series · CEC approved August 2025

GoodWe GW100K-GT

CEC listing: GW100K-GT (AS4777-2 2020)

A 100 kW three-phase solar inverter.

Commercial-scale inverter

At 100 kW, this is built for businesses and large sites. A typical home inverter is 5–10 kW.

Browse home-size inverters →

Installed in Perth, typical: ~$29,997; Estimate for the inverter alone — your quote will vary
Rated power: 100kW; How much solar it can run at once — a large roof
Battery-ready: No; Solar-only: adding a battery later means a second inverter

Datasheet (PDF)Compare inverters See the whole GT series

Spotted something outdated?

What we can tell you

Read from the figures on this page. No review written yet.

It is a solar-only inverter: adding a battery later means a second inverter or an AC-coupled battery.
It needs a three-phase supply — check your switchboard, or ask your installer.
We can't confirm it is on Synergy's approved list — a battery paired with it needs that for the WA Battery Scheme, so ask your installer.
It is CEC-approved, which a new install needs to qualify for STCs.

Key specs, in plain terms

The numbers that matter for a home. The full datasheet is below.

Rated power How much solar it can turn into usable power at once: 100kW
Max efficiency How much of the solar you make reaches the house: 99.0%
Phases Needs a three-phase supply — check your switchboard: 3-phase
Type Runs solar only: Solar
Warranty How long GoodWe Technologies Co Ltd stands behind it: 5yr

Full datasheet

Every figure on file for the GoodWe GW100K-GT, by section.

Full datasheet, by section
Specification	Value
Efficiency
Max efficiency	99%
European efficiency	98.3%
Physical
IP rating	IP66
Installation requirements
Cable gauge	1 mm²

Parsed from the manufacturer datasheet, install manual, and warranty document. Confirm against the linked PDFs before relying on a value for a quote or installation.

Features & compatibility

Battery compatible

Backup capable

CEC approval details

CEC approved

13 Aug 2025

Approval expiry

13 Aug 2028

Status

Active

Eligible for rebates

Yes

About GoodWe Technologies Co Ltd

Years in AU Market

12 years

Australian Office

Yes

CEC-Approved Batteries

CEC-Approved Panels

168

What it costs in Perth

Typical installed, inverter only

$19,998–$39,996

Estimate confidence: Medium

Prices vary by installer, configuration and site complexity. Get exact quotes from installers you choose.

Explore your options

Compare quotes from installers you choose

WA compliance

Synergy approved list: Not confirmed
ESM compliant: Check

Australian office

Has local presence

Website

www.goodwe.com.au

12 years in Australian market

How it compares

The GoodWe GW100K-GT against the closest-power inverters from other brands.

Specification	GoodWe GW100K-GTGoodWe	GoodWe GEP100-10GoodWe	GoodWe GW100K-HTGoodWe

Rated power?	99.99 kW	99.99 kW	99.99 kW
Max efficiency?	99.0%best value	0.0%	0.0%
MPPT trackers?	Not verified	Not verified	Not verified

Phases	Three-phase	Single-phase	Three-phase
Type	Solar	Solar	Solar
Battery ready	No	No	No
Warranty	5 years	Not verified	Not verified

Specs from the CEC register and datasheet enrichment. Indicative — confirm exact figures with your installer.

Documents

5-year inverter warranty

GoodWe GW100K-GT

AI-summarised from the manufacturer warranty document. Always confirm against the linked PDF before relying on it for a claim.

Coverage shape: Pro-rata — value reduces with age
If you sell the home: Transfers to the next homeowner
What voids it: The warranty is void if the inverter is installed by non-accredited technicians, or if it is modified in any way.
Environment limits: The warranty does not cover damage from extreme environmental conditions including salt exposure, excessive heat, or flooding.

Read the official warranty document (PDF)

Fault & error codes — GoodWe GW100K-GT

From the install manual

10 documented

Showing 10 of 10. The official install manual is the authoritative source — always confirm before acting.

DC-SPDcriticalCall your installer
Manual (PDF)
Lightning strike detected
Likely cause
The inverter is struck by lightning.
What to do
Disconnect the AC output switch and DC input switch, then connect them 5 minutes later. Contact the dealer or after-sales service if the problem persists.
EEPROM FailcriticalCall your installer
Manual (PDF)
Internal memory failure
Likely cause
The internal memory Flash is abnormal.
What to do
Contact the dealer or after-sales service.
GFI Chk FailcriticalCall your installer
Manual (PDF)
Ground Fault Detection failure
Likely cause
The sampling of the GFCI HCT is abnormal.
What to do
Contact the dealer or after-sales service for assistance.
PV Reverse FaultcriticalCall your installer
Manual (PDF)
Incorrect PV string connection
Likely cause
The PV string is connected in reverse order.
What to do
Check whether the PV strings are connected reversely and correct the connections.
SPI Comm FailcriticalCall your installer
Manual (PDF)
Communication failure with the SPI chip
Likely cause
The chip is not powered on or the program version is wrong.
What to do
Disconnect the AC output switch and DC input switch, then connect them 5 minutes later. Contact the dealer or after-sales service if the problem persists.
Fac FailwarningCall your installer
Manual (PDF)
Grid frequency out of range
Likely cause
The utility grid frequency is out of the allowed range.
What to do
If the problem occurs frequently, check whether the grid frequency is within the permissible range and contact the local power company if necessary.
Night DCSPS FaultwarningCall your installer
Manual (PDF)
Temporary environmental issue
Likely cause
Temporary abnormality caused by environmental factors or internal components are damaged.
What to do
Disconnect the AC output switch and DC input switch, then connect them 5 minutes later. Contact the dealer or after-sales service if the problem persists.
PID ErrorwarningCall your installer
Manual (PDF)
PID module abnormality
Likely cause
Abnormal Ground or PID module is abnormal.
What to do
Check whether the DC wirings and AC wirings are abnormal or if the PID module is faulty, and contact after-sales service if needed.
Relay FailwarningCall your installer
Manual (PDF)
Relay malfunction
Likely cause
The relay is abnormal or short-circuited.
What to do
Contact the dealer or after-sales service for further assistance.
Vac FailurewarningCall your installer
Manual (PDF)
Grid voltage out of range
Likely cause
The utility grid voltage is out of the allowed range.
What to do
Check whether the AC output voltage of the inverter meets the grid requirements and ensure correct wiring.

Part of the GoodWe GT series

Compare every GoodWe GT variant side by side →

More GoodWe Technologies Co Ltd Inverters

GEH10-1U-10 (AS4777-2 2020)

10 kW · 1φ

GEH15-3U-10 (AS4777-2 2020)

15 kW · 1φ

GEH20-3U-10 (AS4777-2 2020)

20 kW · 1φ

GEH25-3U-10 (AS4777-2 2020)

25 kW · 1φ

GEH29.9-3U-10 (AS4777-2 2020)

29.9 kW · 1φ

GEH5.0-1U-10 (AS4777-2 2020)

5 kW · 1φ

View all GoodWe Technologies Co Ltd inverters