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SG33T-P2-CN vs GW33K-SDT-CN-G40 11 of 19 identical Swap Change inverters

Sungrow SG33T-P2-CN vs GoodWe GW33K-SDT-CN-G40

Sungrow SG33T-P2-CN
Sungrow
SG33T-P2-CN
33 kW 98.3 % euro Grid-tie
Open inverter page Datasheet PDF
VS
GoodWe GW33K-SDT-CN-G40
GoodWe
GW33K-SDT-CN-G40
33 kW Grid-tie
Open inverter page Datasheet PDF
The verdict

8 differences, and they point both ways

The largest is max input current per tracker: 29.0 A more headroom. 11 of 19 comparable parameters are identical, with 13 more left out because at least one datasheet does not publish them.

See all 8 differences
How alike are they
11 of 19 comparable
parameters are identical
identical differs not published
01

What actually differs

8 of 19 parameters
Parameter SG33T-P2-CN GW33K-SDT-CN-G40 Difference
Max input current per tracker 50.0 A 21.0 A 29.0 A more headroom
Weight 25.0 kg 19.0 kg 6.0 kg lighter
Noise 55 dB 45 dB 10 dB quieter
Nominal AC voltage 400 V 380 V 20 V apart
MPP trackers 3 2 1 tracker more
MPPT voltage range 160-1000 V 140-1000 V 160-1000 V vs 140-1000 V
Start voltage 180 V 160 V 20 V earlier start
Dimensions 466x615x225 mm 413x530x211 mm 466x615x225 mm vs 413x530x211 mm
02

Full specification

Parameter SG33T-P2-CN GW33K-SDT-CN-G40 Difference
AC output
Rated AC power 33.00 kW 33.00 kW Same
Max AC power 36.30 kW 36.30 kW Same
Grid connection 3-phase 3-phase Same
Nominal AC voltage 400 V 380 V 20 V apart
Max AC current 55.0 A 55.0 A Same
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 160-1000 V 140-1000 V 160-1000 V vs 140-1000 V
Start voltage 180 V 160 V -20 V for GW33K-SDT-CN-G40
MPP trackers 3 2 +1 trackers for SG33T-P2-CN
Strings per tracker - 2 Not published by Sungrow
Max input current per tracker 50.0 A 21.0 A +29.0 A for SG33T-P2-CN
Efficiency
European efficiency 98.3 % - Not published by GoodWe
Max efficiency 98.6 % 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 25.0 kg 19.0 kg -6.0 kg for GW33K-SDT-CN-G40
Weight per kW 0.8 kg/kW 0.6 kg/kW Effectively the same
Dimensions 466x615x225 mm 413x530x211 mm 466x615x225 mm vs 413x530x211 mm
Ingress protection IP66 IP66 Same
Cooling forced-air forced-air Same
Noise 55 dB 45 dB -10 dB for GW33K-SDT-CN-G40
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.