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GW40K-SDT-P30 vs SG40CX-P2 12 of 20 identical Swap Change inverters

GoodWe GW40K-SDT-P30 vs Sungrow SG40CX-P2

GoodWe GW40K-SDT-P30
GoodWe
GW40K-SDT-P30
40 kW Grid-tie
Open inverter page Datasheet PDF
VS
Sungrow SG40CX-P2
Sungrow
SG40CX-P2
40 kW 98.3 % euro Grid-tie
Open inverter page Datasheet PDF
The verdict

GW40K-SDT-P30 leads on the differences that matter

The largest is max input current per tracker: 12.0 A more headroom. 12 of 20 comparable parameters are identical, with 12 more left out because at least one datasheet does not publish them.

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

What actually differs

8 of 20 parameters
Parameter GW40K-SDT-P30 SG40CX-P2 Difference
Max input current per tracker 42.0 A 30.0 A 12.0 A more headroom
Weight 30.0 kg 40.0 kg 10.0 kg lighter
Max efficiency 98.8 % 98.5 % 0.3 pp more efficient
Nominal AC voltage 380 V 400 V 20 V apart
Start voltage 160 V 200 V 40 V earlier start
Weight per kW 0.8 kg/kW 1.0 kg/kW 0.2 kg/kW lighter
MPPT voltage range 140-1000 V 160-1000 V 140-1000 V vs 160-1000 V
Dimensions 483x585x230 mm 575x645x245 mm 483x585x230 mm vs 575x645x245 mm
02

Full specification

Parameter GW40K-SDT-P30 SG40CX-P2 Difference
AC output
Rated AC power 40.00 kW 40.00 kW Same
Max AC power 44.00 kW 44.00 kW Same
Grid connection 3-phase 3-phase Same
Nominal AC voltage 380 V 400 V 20 V apart
Max AC current 66.7 A 66.9 A Effectively the same
PV input
Max PV power - 56.00 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 GW40K-SDT-P30
MPP trackers - 4 Not published by GoodWe
Strings per tracker - 2 Not published by GoodWe
Max input current per tracker 42.0 A 30.0 A +12.0 A for GW40K-SDT-P30
Efficiency
European efficiency - 98.3 % Not published by GoodWe
Max efficiency 98.8 % 98.5 % +0.3 pp for GW40K-SDT-P30
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 30.0 kg 40.0 kg -10.0 kg for GW40K-SDT-P30
Weight per kW 0.8 kg/kW 1.0 kg/kW -0.2 kg/kW for GW40K-SDT-P30
Dimensions 483x585x230 mm 575x645x245 mm 483x585x230 mm vs 575x645x245 mm
Ingress protection IP66 IP66 Same
Cooling forced-air forced-air Same
Noise 29 dB - Not published by Sungrow
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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6 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.