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SG20RT vs SUN2000-20KTL-M2 15 of 25 identical Swap Change inverters

Sungrow SG20RT vs Huawei SUN2000-20KTL-M2

Sungrow SG20RT
Sungrow
SG20RT
20 kW 98.1 % euro Grid-tie
Open inverter page Datasheet PDF
VS
Huawei
SUN2000-20KTL-M2
20 kW 98.3 % euro Grid-tie
Open inverter page Datasheet PDF
The verdict

SG20RT leads on the differences that matter

The largest is max input current per tracker: 3.0 A more headroom. 15 of 25 comparable parameters are identical, with 7 more left out because at least one datasheet does not publish them.

See all 10 differences
How alike are they
15 of 25 comparable
parameters are identical
identical differs not published
01

What actually differs

10 of 25 parameters
Parameter SG20RT SUN2000-20KTL-M2 Difference
Max input current per tracker 25.0 A 22.0 A 3.0 A more headroom
Weight 21.0 kg 25.0 kg 4.0 kg lighter
Max DC voltage 1100 V 1080 V 20 V apart
European efficiency 98.1 % 98.3 % 0.2 pp more efficient
Max AC current 31.9 A 33.5 A 1.6 A apart
MPPT voltage range 160-1000 V 160-950 V 160-1000 V vs 160-950 V
Start voltage 180 V 200 V 20 V earlier start
Weight per kW 1.1 kg/kW 1.2 kg/kW 0.2 kg/kW lighter
Dimensions 480x370x195 mm 470x525x262 mm 480x370x195 mm vs 470x525x262 mm
Cooling forced-air natural forced-air vs natural
02

Full specification

Parameter SG20RT SUN2000-20KTL-M2 Difference
AC output
Rated AC power 20.00 kW 20.00 kW Same
Max AC power 22.00 kW 22.00 kW Same
Grid connection 3-phase 3-phase Same
Nominal AC voltage 400 V 400 V Same
Max AC current 31.9 A 33.5 A 1.6 A apart
PV input
Max PV power 30.00 kW 30.00 kW Same
DC/AC ratio 1.50 1.50 Same
Max DC voltage 1100 V 1080 V 20 V apart
MPPT voltage range 160-1000 V 160-950 V 160-1000 V vs 160-950 V
Start voltage 180 V 200 V -20 V for SG20RT
MPP trackers 2 2 Same
Strings per tracker 2 2 Same
Max input current per tracker 25.0 A 22.0 A +3.0 A for SG20RT
Efficiency
European efficiency 98.1 % 98.3 % +0.2 pp for SUN2000-20KTL-M2
Max efficiency 98.5 % 98.7 % Effectively the 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 21.0 kg 25.0 kg -4.0 kg for SG20RT
Weight per kW 1.1 kg/kW 1.2 kg/kW -0.2 kg/kW for SG20RT
Dimensions 480x370x195 mm 470x525x262 mm 480x370x195 mm vs 470x525x262 mm
Ingress protection IP65 IP65 Same
Cooling forced-air natural forced-air vs natural
Noise - - Neither datasheet publishes this
Max operating temperature 60 °C 60 °C Same
Connectivity and safety
Wi-Fi Yes Yes Same
Ethernet Yes Yes Same
Arc fault protection Yes Yes Same
Integrated DC switch Yes Yes Same
Warranty
Warranty - - Neither datasheet publishes this
03

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The same specification on paper
04

Written summary

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