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GW20KN-DT vs SG20KTL-M 10 of 14 identical Swap Change inverters

GoodWe GW20KN-DT vs Sungrow SG20KTL-M

GoodWe GW20KN-DT
GoodWe
GW20KN-DT
20 kW 98.1 % euro 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

SG20KTL-M leads on the differences that matter

The largest is max dc voltage: 100 V apart. 10 of 14 comparable parameters are identical, with 18 more left out because at least one datasheet does not publish them.

See all 4 differences
How alike are they
10 of 14 comparable
parameters are identical
identical differs not published
01

What actually differs

4 of 14 parameters
Parameter GW20KN-DT SG20KTL-M Difference
Max DC voltage 1000 V 1100 V 100 V apart
Weight 26.0 kg 24.0 kg 2.0 kg lighter
European efficiency 98.1 % 98.3 % 0.2 pp more efficient
Dimensions 455x516x220 mm 485x370x210 mm 455x516x220 mm vs 485x370x210 mm
02

Full specification

Parameter GW20KN-DT SG20KTL-M Difference
AC output
Rated AC power 20.00 kW 20.00 kW Same
Max AC power 20.00 kW 20.00 kW Same
Grid connection 3-phase 3-phase Same
Nominal AC voltage 400 V 400 V Same
Max AC current 31.9 A 31.9 A Same
PV input
Max PV power 26.00 kW - Not published by Sungrow
DC/AC ratio 1.30 - Not published by Sungrow
Max DC voltage 1000 V 1100 V 100 V apart
MPPT voltage range - 200-1000 V Not published by GoodWe
Start voltage - 250 V Not published by GoodWe
MPP trackers 2 2 Same
Strings per tracker - 2 Not published by GoodWe
Max input current per tracker - 22.0 A Not published by GoodWe
Efficiency
European efficiency 98.1 % 98.3 % +0.2 pp for SG20KTL-M
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 26.0 kg 24.0 kg -2.0 kg for SG20KTL-M
Weight per kW 1.3 kg/kW 1.2 kg/kW Effectively the same
Dimensions 455x516x220 mm 485x370x210 mm 455x516x220 mm vs 485x370x210 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.