Skip to main content
GW25K-MT vs STP 25-50 (Sunny Tripower X 25) 9 of 20 identical Swap Change inverters

GoodWe GW25K-MT vs SMA Solar STP 25-50 (Sunny Tripower X 25)

GoodWe GW25K-MT
GoodWe
GW25K-MT
25 kW 98.4 % euro Grid-tie
Open inverter page Datasheet PDF
VS
SMA Solar STP 25-50 (Sunny Tripower X 25)
SMA Solar
STP 25-50 (Sunny Tripower X 25)
25 kW 98.0 % euro Grid-tie
Open inverter page Datasheet PDF
The verdict

GW25K-MT leads on the differences that matter

The largest is max dc voltage: 100 V apart. 9 of 20 comparable parameters are identical, with 12 more left out because at least one datasheet does not publish them.

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

What actually differs

11 of 20 parameters
Parameter GW25K-MT STP 25-50 (Sunny Tripower X 25) Difference
Max DC voltage 1100 V 1000 V 100 V apart
Max input current per tracker 30.0 A 24.0 A 6.0 A more headroom
European efficiency 98.4 % 98.0 % 0.4 pp more efficient
Max AC power 27.50 kW 25.00 kW 2.50 kW apart
Weight 40.0 kg 35.0 kg 5.0 kg lighter
Max efficiency 98.7 % 98.2 % 0.5 pp more efficient
Nominal AC voltage 400 V 230 V 170 V apart
Max AC current 40.0 A 36.6 A 3.4 A apart
Weight per kW 1.6 kg/kW 1.4 kg/kW 0.2 kg/kW lighter
MPPT voltage range 200-950 V 150-1000 V 200-950 V vs 150-1000 V
Dimensions 590x480x200 mm 762x728x266 mm 590x480x200 mm vs 762x728x266 mm
02

Full specification

Parameter GW25K-MT STP 25-50 (Sunny Tripower X 25) Difference
AC output
Rated AC power 25.00 kW 25.00 kW Same
Max AC power 27.50 kW 25.00 kW 2.50 kW apart
Grid connection 3-phase 3-phase Same
Nominal AC voltage 400 V 230 V 170 V apart
Max AC current 40.0 A 36.6 A 3.4 A apart
PV input
Max PV power - 37.50 kW Not published by GoodWe
DC/AC ratio - 1.50 Not published by GoodWe
Max DC voltage 1100 V 1000 V 100 V apart
MPPT voltage range 200-950 V 150-1000 V 200-950 V vs 150-1000 V
Start voltage 180 V 188 V Effectively the same
MPP trackers - 3 Not published by GoodWe
Strings per tracker 2 2 Same
Max input current per tracker 30.0 A 24.0 A +6.0 A for GW25K-MT
Efficiency
European efficiency 98.4 % 98.0 % +0.4 pp for GW25K-MT
Max efficiency 98.7 % 98.2 % +0.5 pp for GW25K-MT
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 40.0 kg 35.0 kg -5.0 kg for STP 25-50 (Sunny Tripower X 25)
Weight per kW 1.6 kg/kW 1.4 kg/kW -0.2 kg/kW for STP 25-50 (Sunny Tripower X 25)
Dimensions 590x480x200 mm 762x728x266 mm 590x480x200 mm vs 762x728x266 mm
Ingress protection IP65 IP65 Same
Cooling forced-air forced-air Same
Noise - 59 dB Not published by GoodWe
Max operating temperature 60 °C 60 °C Same
Connectivity and safety
Wi-Fi Yes Yes Same
Ethernet - Yes Not published by GoodWe
Arc fault protection - Yes Not published by GoodWe
Integrated DC switch Yes Yes Same
Warranty
Warranty - 5 yrs Not published by GoodWe
03

More useful comparisons

Open all inverters
Same type, similar size
Growatt
GoodWe GW25K-MT vs Growatt MID 25KTL3-X2 (Pro.E)
10 differences, the largest is max input current per tracker
Same type, similar size
Growatt
GoodWe GW25K-MT vs Growatt MID 25KTL3-X
7 differences, the largest is weight
Same type, similar size
Growatt
GoodWe GW25K-MT vs Growatt MID 25KTL3-X1
9 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.