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SG17RT-20 vs GW17KN-DT 9 of 14 identical Swap Change inverters

Sungrow SG17RT-20 vs GoodWe GW17KN-DT

Sungrow SG17RT-20
Sungrow
SG17RT-20
17 kW 98.2 % euro Grid-tie
Open inverter page Datasheet PDF
VS
GoodWe GW17KN-DT
GoodWe
GW17KN-DT
17 kW 98.1 % euro Grid-tie
Open inverter page Datasheet PDF
The verdict

SG17RT-20 leads on the differences that matter

The largest is max dc voltage: 100 V apart. 9 of 14 comparable parameters are identical, with 18 more left out because at least one datasheet does not publish them.

See all 5 differences
How alike are they
9 of 14 comparable
parameters are identical
identical differs not published
01

What actually differs

5 of 14 parameters
Parameter SG17RT-20 GW17KN-DT Difference
Max DC voltage 1100 V 1000 V 100 V apart
Weight 20.0 kg 26.0 kg 6.0 kg lighter
Weight per kW 1.2 kg/kW 1.5 kg/kW 0.4 kg/kW lighter
Max AC current 28.3 A 28.8 A 0.5 A apart
Dimensions 480x370x195 mm 455x516x220 mm 480x370x195 mm vs 455x516x220 mm
02

Full specification

Parameter SG17RT-20 GW17KN-DT Difference
AC output
Rated AC power 17.00 kW 17.00 kW Same
Max AC power 17.00 kW 17.00 kW Same
Grid connection 3-phase 3-phase Same
Nominal AC voltage 400 V 400 V Same
Max AC current 28.3 A 28.8 A 0.5 A apart
PV input
Max PV power - 22.10 kW Not published by Sungrow
DC/AC ratio - 1.30 Not published by Sungrow
Max DC voltage 1100 V 1000 V 100 V apart
MPPT voltage range 160-1000 V - Not published by GoodWe
Start voltage 180 V - Not published by GoodWe
MPP trackers 2 2 Same
Strings per tracker 1 - Not published by GoodWe
Max input current per tracker 25.0 A - Not published by GoodWe
Efficiency
European efficiency 98.2 % 98.1 % Effectively the same
Max efficiency 98.6 % 98.6 % Same
CEC efficiency - - Neither datasheet publishes this
Battery
Battery input - - Neither datasheet publishes this
Battery voltage - - Neither datasheet publishes this
Max charge current - - Neither datasheet publishes this
Backup power - - Neither datasheet publishes this
Physical
Weight 20.0 kg 26.0 kg -6.0 kg for SG17RT-20
Weight per kW 1.2 kg/kW 1.5 kg/kW -0.4 kg/kW for SG17RT-20
Dimensions 480x370x195 mm 455x516x220 mm 480x370x195 mm vs 455x516x220 mm
Ingress protection IP65 IP65 Same
Cooling forced-air - Not published by GoodWe
Noise - - Neither datasheet publishes this
Max operating temperature 60 °C 60 °C Same
Connectivity and safety
Wi-Fi - Yes Not published by Sungrow
Ethernet - - Neither datasheet publishes this
Arc fault protection - - Neither datasheet publishes this
Integrated DC switch Yes - Not published by GoodWe
Warranty
Warranty - - Neither datasheet publishes this
03

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04

Written summary

Every figure here is from the manufacturers' own datasheets - a dash means the value is not published, never an estimate.