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GW20K-SDT-CN-G40 vs SG20KTL-M 9 of 19 identical Swap Change inverters

GoodWe GW20K-SDT-CN-G40 vs Sungrow SG20KTL-M

GoodWe GW20K-SDT-CN-G40
GoodWe
GW20K-SDT-CN-G40
20 kW Grid-tie
Open inverter page Datasheet PDF
VS
Sungrow
SG20KTL-M
20 kW 98.3 % euro Grid-tie
Open inverter page Datasheet PDF
The verdict

GW20K-SDT-CN-G40 leads on the differences that matter

The largest is max ac power: 2.00 kW apart. 9 of 19 comparable parameters are identical, with 13 more left out because at least one datasheet does not publish them.

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

What actually differs

10 of 19 parameters
Parameter GW20K-SDT-CN-G40 SG20KTL-M Difference
Max AC power 22.00 kW 20.00 kW 2.00 kW apart
Weight 17.0 kg 24.0 kg 7.0 kg lighter
Max input current per tracker 21.0 A 22.0 A 1.0 A more headroom
Nominal AC voltage 380 V 400 V 20 V apart
Start voltage 160 V 250 V 90 V earlier start
Weight per kW 0.8 kg/kW 1.2 kg/kW 0.3 kg/kW lighter
Max AC current 33.4 A 31.9 A 1.5 A apart
Ingress protection IP66 IP65 IP66 vs IP65
MPPT voltage range 140-1000 V 200-1000 V 140-1000 V vs 200-1000 V
Dimensions 413x530x211 mm 485x370x210 mm 413x530x211 mm vs 485x370x210 mm
02

Full specification

Parameter GW20K-SDT-CN-G40 SG20KTL-M Difference
AC output
Rated AC power 20.00 kW 20.00 kW Same
Max AC power 22.00 kW 20.00 kW 2.00 kW apart
Grid connection 3-phase 3-phase Same
Nominal AC voltage 380 V 400 V 20 V apart
Max AC current 33.4 A 31.9 A 1.5 A apart
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 140-1000 V 200-1000 V 140-1000 V vs 200-1000 V
Start voltage 160 V 250 V -90 V for GW20K-SDT-CN-G40
MPP trackers 2 2 Same
Strings per tracker 2 2 Same
Max input current per tracker 21.0 A 22.0 A +1.0 A for SG20KTL-M
Efficiency
European efficiency - 98.3 % 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 17.0 kg 24.0 kg -7.0 kg for GW20K-SDT-CN-G40
Weight per kW 0.8 kg/kW 1.2 kg/kW -0.3 kg/kW for GW20K-SDT-CN-G40
Dimensions 413x530x211 mm 485x370x210 mm 413x530x211 mm vs 485x370x210 mm
Ingress protection IP66 IP65 IP66 vs IP65
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.