Skip to main content
SG12RT-20 vs GW12KLN-DT 8 of 14 identical Swap Change inverters

Sungrow SG12RT-20 vs GoodWe GW12KLN-DT

Sungrow SG12RT-20
Sungrow
SG12RT-20
12 kW 98.1 % euro Grid-tie
Open inverter page Datasheet PDF
VS
GoodWe GW12KLN-DT
GoodWe
GW12KLN-DT
12 kW 98.1 % euro Grid-tie
Open inverter page Datasheet PDF
The verdict

SG12RT-20 leads on the differences that matter

The largest is max dc voltage: 100 V apart. 8 of 14 comparable parameters are identical, with 18 more left out because at least one datasheet does not publish them.

See all 6 differences
How alike are they
8 of 14 comparable
parameters are identical
identical differs not published
01

What actually differs

6 of 14 parameters
Parameter SG12RT-20 GW12KLN-DT Difference
Max DC voltage 1100 V 1000 V 100 V apart
Max AC power 12.00 kW 16.50 kW 4.50 kW apart
Weight 17.0 kg 26.0 kg 9.0 kg lighter
Weight per kW 1.4 kg/kW 2.2 kg/kW 0.7 kg/kW lighter
Max AC current 20.0 A 31.9 A 11.9 A apart
Dimensions 480x370x195 mm 455x516x220 mm 480x370x195 mm vs 455x516x220 mm
02

Full specification

Parameter SG12RT-20 GW12KLN-DT Difference
AC output
Rated AC power 12.00 kW 12.00 kW Same
Max AC power 12.00 kW 16.50 kW 4.50 kW apart
Grid connection 3-phase 3-phase Same
Nominal AC voltage 400 V 400 V Same
Max AC current 20.0 A 31.9 A 11.9 A apart
PV input
Max PV power - 21.60 kW Not published by Sungrow
DC/AC ratio - 1.80 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 98.1 % 98.1 % Same
Max efficiency 98.5 % 98.5 % 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 26.0 kg -9.0 kg for SG12RT-20
Weight per kW 1.4 kg/kW 2.2 kg/kW -0.7 kg/kW for SG12RT-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

More useful comparisons

Open all inverters
Same type, similar size
Growatt
Sungrow SG12RT-20 vs Growatt MOD 12KTL3-X
9 differences, the largest is weight
Same type, similar size
Growatt
Sungrow SG12RT-20 vs Growatt MOD 12KTL3-X2(Pro)
7 differences, the largest is max input current per tracker
Same type, similar size
Sungrow
Sungrow SG12RT-20 vs Sungrow SG12KTL-M
7 differences, the largest is max input current per tracker
04

Written summary

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