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SG12RT-20 vs SUN-12K-G03-LV 8 of 20 identical Swap Change inverters

Sungrow SG12RT-20 vs Deye SUN-12K-G03-LV

Sungrow SG12RT-20
Sungrow
SG12RT-20
12 kW 98.1 % euro Grid-tie
Open inverter page Datasheet PDF
VS
Deye
SUN-12K-G03-LV
12 kW 97.8 % euro Grid-tie
Open inverter page Datasheet PDF
The verdict

SG12RT-20 leads on the differences that matter

The largest is max dc voltage: 300 V apart. 8 of 20 comparable parameters are identical, with 12 more left out because at least one datasheet does not publish them.

See all 12 differences
How alike are they
8 of 20 comparable
parameters are identical
identical differs not published
01

What actually differs

12 of 20 parameters
Parameter SG12RT-20 SUN-12K-G03-LV Difference
Max DC voltage 1100 V 800 V 300 V apart
Max AC power 12.00 kW 13.20 kW 1.20 kW apart
Weight 17.0 kg 28.0 kg 11.0 kg lighter
Weight per kW 1.4 kg/kW 2.3 kg/kW 0.9 kg/kW lighter
European efficiency 98.1 % 97.8 % 0.3 pp more efficient
Nominal AC voltage 400 V 220 V 180 V apart
Max AC current 20.0 A 34.6 A 14.6 A apart
Start voltage 180 V 250 V 70 V earlier start
Max operating temperature 60 °C 65 °C 5 °C more heat tolerant
MPPT voltage range 160-1000 V 200-700 V 160-1000 V vs 200-700 V
Strings per tracker 1 2 1 string apart
Dimensions 480x370x195 mm 520x400x240 mm 480x370x195 mm vs 520x400x240 mm
02

Full specification

Parameter SG12RT-20 SUN-12K-G03-LV Difference
AC output
Rated AC power 12.00 kW 12.00 kW Same
Max AC power 12.00 kW 13.20 kW 1.20 kW apart
Grid connection 3-phase 3-phase Same
Nominal AC voltage 400 V 220 V 180 V apart
Max AC current 20.0 A 34.6 A 14.6 A apart
PV input
Max PV power - 15.60 kW Not published by Sungrow
DC/AC ratio - 1.30 Not published by Sungrow
Max DC voltage 1100 V 800 V 300 V apart
MPPT voltage range 160-1000 V 200-700 V 160-1000 V vs 200-700 V
Start voltage 180 V 250 V -70 V for SG12RT-20
MPP trackers 2 2 Same
Strings per tracker 1 2 1 string apart
Max input current per tracker 25.0 A 25.0 A Same
Efficiency
European efficiency 98.1 % 97.8 % +0.3 pp for SG12RT-20
Max efficiency 98.5 % 98.6 % 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 17.0 kg 28.0 kg -11.0 kg for SG12RT-20
Weight per kW 1.4 kg/kW 2.3 kg/kW -0.9 kg/kW for SG12RT-20
Dimensions 480x370x195 mm 520x400x240 mm 480x370x195 mm vs 520x400x240 mm
Ingress protection IP65 IP65 Same
Cooling forced-air forced-air Same
Noise - 45 dB Not published by Sungrow
Max operating temperature 60 °C 65 °C +5 °C for SUN-12K-G03-LV
Connectivity and safety
Wi-Fi - Yes Not published by Sungrow
Ethernet - Yes Not published by Sungrow
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.