Skip to main content
GW75K-MT vs SUN-75K-G 11 of 20 identical Swap Change inverters

GoodWe GW75K-MT vs Deye SUN-75K-G

GoodWe GW75K-MT
GoodWe
GW75K-MT
75 kW 98.3 % euro Grid-tie
Open inverter page Datasheet PDF
VS
Deye SUN-75K-G
Deye
SUN-75K-G
75 kW 98.3 % euro Grid-tie
Open inverter page Datasheet PDF
The verdict

9 differences, and they point both ways

The largest is max dc voltage: 100 V apart. 11 of 20 comparable parameters are identical, with 12 more left out because at least one datasheet does not publish them.

See all 9 differences
How alike are they
11 of 20 comparable
parameters are identical
identical differs not published
01

What actually differs

9 of 20 parameters
Parameter GW75K-MT SUN-75K-G Difference
Max DC voltage 1100 V 1000 V 100 V apart
Max input current per tracker 44.0 A 40.0 A 4.0 A more headroom
Max AC power 75.00 kW 82.50 kW 7.50 kW apart
Weight 70.0 kg 60.0 kg 10.0 kg lighter
Max AC current 133.0 A 119.6 A 13.4 A apart
Start voltage 200 V 250 V 50 V earlier start
Max operating temperature 60 °C 65 °C 5 °C more heat tolerant
MPPT voltage range 200-1000 V 200-850 V 200-1000 V vs 200-850 V
Dimensions 788x586x267 mm 575x700x297 mm 788x586x267 mm vs 575x700x297 mm
02

Full specification

Parameter GW75K-MT SUN-75K-G Difference
AC output
Rated AC power 75.00 kW 75.00 kW Same
Max AC power 75.00 kW 82.50 kW 7.50 kW apart
Grid connection 3-phase 3-phase Same
Nominal AC voltage 400 V 400 V Same
Max AC current 133.0 A 119.6 A 13.4 A apart
PV input
Max PV power - 97.50 kW Not published by GoodWe
DC/AC ratio - 1.30 Not published by GoodWe
Max DC voltage 1100 V 1000 V 100 V apart
MPPT voltage range 200-1000 V 200-850 V 200-1000 V vs 200-850 V
Start voltage 200 V 250 V -50 V for GW75K-MT
MPP trackers 4 4 Same
Strings per tracker 4 - Not published by Deye
Max input current per tracker 44.0 A 40.0 A +4.0 A for GW75K-MT
Efficiency
European efficiency 98.3 % 98.3 % Same
Max efficiency 98.8 % 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 70.0 kg 60.0 kg -10.0 kg for SUN-75K-G
Weight per kW 0.9 kg/kW 0.8 kg/kW Effectively the same
Dimensions 788x586x267 mm 575x700x297 mm 788x586x267 mm vs 575x700x297 mm
Ingress protection IP65 IP65 Same
Cooling forced-air forced-air Same
Noise - 55 dB Not published by GoodWe
Max operating temperature 60 °C 65 °C +5 °C for SUN-75K-G
Connectivity and safety
Wi-Fi Yes Yes Same
Ethernet - Yes Not published by GoodWe
Arc fault protection - - Neither datasheet publishes this
Integrated DC switch Yes Yes Same
Warranty
Warranty - - Neither datasheet publishes this
03

More useful comparisons

Open all inverters
Same type, similar size
GoodWe
GoodWe GW75K-MT vs GoodWe GW75KBF-MT
4 differences, the largest is max ac power
Same type, similar size
Ginlong Solis
GoodWe GW75K-MT vs Ginlong Solis S6-GC75K-LV
8 differences, the largest is max input current per tracker
Same type, similar size
Deye
GoodWe GW75K-MT vs Deye SUN-75K-G03
9 differences, the largest is max dc voltage
04

Written summary

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