Goodwe ET Series User manual

User Manual
Hybrid Inverter
ET Series
15-30kW
V1.0-2022-8-30

I
User Manual V1.0-2022-08-30 Copyright Statement
The information in this user manual is subject to change due to product updates or other
descriptions here are for guidance only.
No part of this manual can be reproduced or transmitted to the public platform in any form or by
any means without the prior written authorization of GoodWe Technologies Co.,Ltd.
and other GOODWE trademarks are trademarks of GoodWe Technologies
GoodWe Technologies Co.,Ltd.
Trademarks
Copyright©GoodWe Technologies Co., Ltd. All rights reserved.
Notice

II
CONTENT User Manual V1.0-2022-08-30
CONTENT

III
User Manual V1.0-2022-08-30 CONTENT

1
User Manual V1.0-2022-08-30
1 About This Manual
1.1 Applicable Model
1.2 Target Audience
This manual describes the product information, installation, electrical connection,
commissioning, troubleshooting, and maintenance. Read through this manual before
product features, functions, and safety precautions. This manual is subject to update without
https://en.goodwe.com.
This manual applies to trained and knowledgeable technical professionals. The technical
personnel has to be familiar with the product, local standards, and electric systems.
Model Nominal Output Power Nominal Output Voltage
GW15K-ET 15000W
380/400V, 3L/N/PE
GW20K-ET 20000W
GW25K-ET 25000W
GW29.9K-ET 29900W
GW30K-ET 30000W

2
01 About This Manual User Manual V1.0-2022-08-30
1.4 Updates
The latest document contains all the updates made in earlier issues.
V1.0 2022-08-30
 First Issue
DANGER
WARNING
CAUTION
NOTICE

3
User Manual V1.0-2022-08-30 02 Safety Precaution
2 Safety Precaution
2.1 General Safety
2.2 PV String Safety
NOTICE
 The information in this user manual is subject to change due to product updates or other
descriptions here are for guidance only.
 Before installations, read through the user manual to learn about the product and the
precautions.

familiar with local standards and safety regulations.


not follow the instructions. https://en.goodwe.com/
warranty.
NOTICE
follow all the safety instructions and cautions before any operations. Improper operation might
DANGER
happen if other types of DC terminals are used, which are beyond the manufacturers liability.
WARNING
 Ensure the component frames and the bracket system are securely grounded.
 Ensure the DC cables are connected tightly, securely and correctly.



Please strictly follow these safety instructions in the user manual during the operation.

4
02 Safety Precaution User Manual V1.0-2022-08-30
DANGER


Disconnect all incoming
product before working on it.
Delayed discharge. Wait 5
the components are completely
discharged.
Read through the user
manual before any
operations.
Potential risks exist. Wear
proper PPE before any
operations.
High-temperature hazard. Do
not touch the product under
burnt.
Grounding point.
as household waste. Discard
the product in compliance with
local laws and regulations,
or send it back to the
manufacturer.
2.3 Inverter Safety
WARNING


output current.




5
User Manual V1.0-2022-08-30 02 Safety Precaution
2.5 Personnel Requirements
NOTICE

safety precautions and correct operations.

2.4 Battery Safety
WARNING


 If the battery discharged completely, please charge it in strict accordance with the


the battery might be damaged permanently.


2.6 EU Declaration of Conformity









You can download the EU Declaration of Conformity on https://en.goodwe.com.

03 Product Introduction User Manual V1.0-2022-08-30
3 Product Introduction
management system. The power generated in the PV system can be used, stored in the battery,
output to the utility grid, etc.
Intended usage
Model
Model description
3.1 Product Overview
 GW15K-ET
 GW20K-ET
 GW25K-ET
 GW29.9K-ET
 GW30K-ET
No. Referring to Explanation
1 Brand Code GW: GoodWe
2 Rated Power 15K: the rated power is 15000W.
3 Series Code
GW15K-ET
1 2 3
Supported Grid Types
TN-S
PE PE PE PE
L1
L2
L3
N
L1
L2
L3
N
PE
L1
L2
L3
N
PE
L1
L2
L3
PEN
TN-C TN-C-S TT

User Manual V1.0-2022-08-30 03 Product Introduction
3.2 Application Scenarios
WARNING

the system is disconnected.




shutdown function may fail.



loads as below:

unstable.
 .

8
03 Product Introduction User Manual V1.0-2022-08-30
Self consumption mode
Power cable Signal cable
No. Parts Description
1 PV string
& rapid
shutdown
module
can be obtained from the packing box.
2
3 Battery
4 Battery
breaker 1000V.
5 Load Breaker Depend on the actual using load.
breaker and
SPDT switch
 GW15K-ET: nominal current 400V
 GW20K-ET: nominal current 400V
 GW25K-ET: nominal current 400V
 GW29.9K/30K-ET: nominal current 400V
Smart meter
8
loads

supply or other important loads.

4
6
8
3
7
12
6
5
Utility meter Utility grid
PV string &
rapid shutdown
module
Battery
Battery breaker
ON-GRID
breaker
ON-GRID load
Load
breaker
CT
6

9
User Manual V1.0-2022-08-30 03 Product Introduction
3.3 Working Mode
3.3.1 System Working Mode

remaining power can be sold to the grid.

Economic mode
NOTICE
 Select Economic mode only when it meets the local laws and regulations, e.g., whether the
grid is allowed to charge the battery. If not, do not use this mode.


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03 Product Introduction User Manual V1.0-2022-08-30

grid.

be powered by the grid.
 When the battery cannot supply power, the PV system will supply the loads in priority. If the
 If neither the PV system nor the battery could supply power, the grid would supply power to
 When the grid is disconnected and the backup function is disabled, the power generated in
the PV system will supply the loads in priority, and the excess power will charge the batteries.
Self consumption mode
NOTICE
 For solar power, consider self consumption mode in priority: the excess power charges the
 It is suitable for areas with high electricity prices and little or no solar power generation
subsidies.
3
2 1 1

11
User Manual V1.0-2022-08-30 03 Product Introduction

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03 Product Introduction User Manual V1.0-2022-08-30

 When the utility grid works properly, the power generated in the PV system will charge the
sold to the grid.
 When the utility grid works abnormally, the power generated in the PV system will supply
 When there is no power generated in the PV system:

not select this mode if the grid is not allowed to charge the battery according to the local
laws and regulations

the grid is abnormal.
Back-up mode
NOTICE
 The back-up mode is mainly applied to the scenario where the grid is unstable and there
 The battery stops discharging when it reaches SOC. When there is sunlight the next day,
3
1 2 2

13
User Manual V1.0-2022-08-30 03 Product Introduction
Peak Shaving mode
NOTICE
SOC
limit
B C D E F
300W
Time
Power
Time Description
B The PV system charges the battery in priority as the import power from the gird is
lower.
C The grid charges the battery as the import power from the grid is 300W lower than
D The PV system continues to charge the battery, but the grid stops charging. The
E The battery enters self consumption mode as the battery SOC is higher than Peak
F

14
03 Product Introduction User Manual V1.0-2022-08-30
3.3.2 Inverter Operation Mode
No. Parts Description
1 Waiting
mode  When the conditions are met, it enters the self-check mode.

2 Self-check
mode initialization, etc.
 When the conditions are met, it enters the grid-tied mode, and the

mode.
 If the self-check is not passed, it enters the fault mode.
3 Grid-Tied
mode 
 If a fault is detected, it enters the fault mode.

output function is not turned on, it enters the wait mode.
4
mode
 If a fault is detected, it enters the fault mode.

output function is not turned on, it enters the wait mode.

output function is turned on, it enters the self-check mode.
5 Fault mode
cleared, it enters the wait mode.
Waiting mode
Grid-Tied modeFault mode
Self-check
mode

15
User Manual V1.0-2022-08-30 03 Product Introduction
3.4 Features
usage.





Power derating
Reasons to occur electric arcs.
 Damaged connectors in the PV or battery system.
 Wrong connected or broken cables.



phenomenon through the app.

AFCI
the PV modules.
RSD

03 Product Introduction User Manual V1.0-2022-08-30
be noticed.
Earth Fault Alarm
contactors to enable/disable the load.
The load control methods are as follows:

automatically within the setting time period.

loads will be disabled.

grid protection setting.
Load Control
Loads
Circuit breaker
A1
A2
REY+
REY-