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GW33K-SDT-CN-G40 vs SG33CX-P2 9 of 19 identical Swap Change inverters

GoodWe GW33K-SDT-CN-G40 vs Sungrow SG33CX-P2

GoodWe GW33K-SDT-CN-G40
GoodWe
GW33K-SDT-CN-G40
33 kW Grid-tie
Open inverter page Datasheet PDF
VS
Sungrow SG33CX-P2
Sungrow
SG33CX-P2
33 kW 98.3 % euro Grid-tie
Open inverter page Datasheet PDF
The verdict

10 differences, and they point both ways

The largest is max input current per tracker: 9.0 A more headroom. 9 of 19 comparable parameters are identical, with 13 more left out because at least one datasheet does not publish them.

See all 10 differences
How alike are they
9 of 19 comparable
parameters are identical
identical differs not published
01

What actually differs

10 of 19 parameters
Parameter GW33K-SDT-CN-G40 SG33CX-P2 Difference
Max input current per tracker 21.0 A 30.0 A 9.0 A more headroom
Max AC power 36.30 kW 33.00 kW 3.30 kW apart
Weight 19.0 kg 38.0 kg 19.0 kg lighter
Weight per kW 0.6 kg/kW 1.2 kg/kW 0.6 kg/kW lighter
Nominal AC voltage 380 V 400 V 20 V apart
Start voltage 160 V 200 V 40 V earlier start
MPP trackers 2 3 1 tracker more
Max efficiency 98.7 % 98.5 % 0.2 pp more efficient
MPPT voltage range 140-1000 V 160-1000 V 140-1000 V vs 160-1000 V
Dimensions 413x530x211 mm 575x645x245 mm 413x530x211 mm vs 575x645x245 mm
02

Full specification

Parameter GW33K-SDT-CN-G40 SG33CX-P2 Difference
AC output
Rated AC power 33.00 kW 33.00 kW Same
Max AC power 36.30 kW 33.00 kW 3.30 kW apart
Grid connection 3-phase 3-phase Same
Nominal AC voltage 380 V 400 V 20 V apart
Max AC current 55.0 A 55.2 A Effectively the same
PV input
Max PV power - 46.20 kW Not published by GoodWe
DC/AC ratio - 1.40 Not published by GoodWe
Max DC voltage 1100 V 1100 V Same
MPPT voltage range 140-1000 V 160-1000 V 140-1000 V vs 160-1000 V
Start voltage 160 V 200 V -40 V for GW33K-SDT-CN-G40
MPP trackers 2 3 +1 trackers for SG33CX-P2
Strings per tracker 2 2 Same
Max input current per tracker 21.0 A 30.0 A +9.0 A for SG33CX-P2
Efficiency
European efficiency - 98.3 % Not published by GoodWe
Max efficiency 98.7 % 98.5 % +0.2 pp for GW33K-SDT-CN-G40
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 19.0 kg 38.0 kg -19.0 kg for GW33K-SDT-CN-G40
Weight per kW 0.6 kg/kW 1.2 kg/kW -0.6 kg/kW for GW33K-SDT-CN-G40
Dimensions 413x530x211 mm 575x645x245 mm 413x530x211 mm vs 575x645x245 mm
Ingress protection IP66 IP66 Same
Cooling forced-air forced-air Same
Noise 45 dB - Not published by Sungrow
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 - Yes Not published by GoodWe
Integrated DC switch Yes Yes Same
Warranty
Warranty - - Neither datasheet publishes this
03

More useful comparisons

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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.