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SG17RT-20 vs GW17K-SDT-CN-G40 10 of 19 identical Swap Change inverters

Sungrow SG17RT-20 vs GoodWe GW17K-SDT-CN-G40

Sungrow SG17RT-20
Sungrow
SG17RT-20
17 kW 98.2 % euro Grid-tie
Open inverter page Datasheet PDF
VS
GoodWe GW17K-SDT-CN-G40
GoodWe
GW17K-SDT-CN-G40
17 kW Grid-tie
Open inverter page Datasheet PDF
The verdict

9 differences, and they point both ways

The largest is max input current per tracker: 4.0 A more headroom. 10 of 19 comparable parameters are identical, with 13 more left out because at least one datasheet does not publish them.

See all 9 differences
How alike are they
10 of 19 comparable
parameters are identical
identical differs not published
01

What actually differs

9 of 19 parameters
Parameter SG17RT-20 GW17K-SDT-CN-G40 Difference
Max input current per tracker 25.0 A 21.0 A 4.0 A more headroom
Max AC power 17.00 kW 18.70 kW 1.70 kW apart
Weight 20.0 kg 17.0 kg 3.0 kg lighter
Nominal AC voltage 400 V 380 V 20 V apart
Ingress protection IP65 IP66 IP65 vs IP66
MPPT voltage range 160-1000 V 140-1000 V 160-1000 V vs 140-1000 V
Start voltage 180 V 160 V 20 V earlier start
Strings per tracker 1 2 1 string apart
Dimensions 480x370x195 mm 413x530x211 mm 480x370x195 mm vs 413x530x211 mm
02

Full specification

Parameter SG17RT-20 GW17K-SDT-CN-G40 Difference
AC output
Rated AC power 17.00 kW 17.00 kW Same
Max AC power 17.00 kW 18.70 kW 1.70 kW apart
Grid connection 3-phase 3-phase Same
Nominal AC voltage 400 V 380 V 20 V apart
Max AC current 28.3 A 28.4 A Effectively the same
PV input
Max PV power - - Neither datasheet publishes this
DC/AC ratio - - Neither datasheet publishes this
Max DC voltage 1100 V 1100 V Same
MPPT voltage range 160-1000 V 140-1000 V 160-1000 V vs 140-1000 V
Start voltage 180 V 160 V -20 V for GW17K-SDT-CN-G40
MPP trackers 2 2 Same
Strings per tracker 1 2 1 string apart
Max input current per tracker 25.0 A 21.0 A +4.0 A for SG17RT-20
Efficiency
European efficiency 98.2 % - Not published by GoodWe
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 17.0 kg -3.0 kg for GW17K-SDT-CN-G40
Weight per kW 1.2 kg/kW 1.0 kg/kW Effectively the same
Dimensions 480x370x195 mm 413x530x211 mm 480x370x195 mm vs 413x530x211 mm
Ingress protection IP65 IP66 IP65 vs IP66
Cooling forced-air forced-air Same
Noise - 45 dB Not published by Sungrow
Max operating temperature 60 °C 60 °C Same
Connectivity and safety
Wi-Fi - - Neither datasheet publishes this
Ethernet - - Neither datasheet publishes this
Arc fault protection - - Neither datasheet publishes this
Integrated DC switch Yes Yes Same
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.