Skip to main content
Sunny Tripower X 50 (STP 50-80) vs MAX 50KTL3 LV 15 of 23 identical Swap Change inverters

SMA Solar Sunny Tripower X 50 (STP 50-80) vs Growatt MAX 50KTL3 LV

SMA Solar Sunny Tripower X 50 (STP 50-80)
SMA Solar
Sunny Tripower X 50 (STP 50-80)
50 kW 97.7 % euro Grid-tie
Open inverter page Datasheet PDF
VS
Growatt MAX 50KTL3 LV
Growatt
MAX 50KTL3 LV
50 kW 98.4 % euro Grid-tie
Open inverter page Datasheet PDF
The verdict

8 differences, and they point both ways

The largest is european efficiency: 0.7 pp more efficient. 15 of 23 comparable parameters are identical, with 9 more left out because at least one datasheet does not publish them.

See all 8 differences
How alike are they
15 of 23 comparable
parameters are identical
identical differs not published
01

What actually differs

8 of 23 parameters
Parameter Sunny Tripower X 50 (STP 50-80) MAX 50KTL3 LV Difference
European efficiency 97.7 % 98.4 % 0.7 pp more efficient
Max input current per tracker 40.0 A 26.0 A 14.0 A more headroom
Max efficiency 98.1 % 98.8 % 0.7 pp more efficient
Max AC power 50.00 kW 55.50 kW 5.50 kW apart
Weight 50.5 kg 82.0 kg 31.5 kg lighter
Weight per kW 1.0 kg/kW 1.6 kg/kW 0.6 kg/kW lighter
Max AC current 79.5 A 80.5 A 1.0 A apart
Dimensions 718x680x332 mm 600x860x300 mm 718x680x332 mm vs 600x860x300 mm
02

Full specification

Parameter Sunny Tripower X 50 (STP 50-80) MAX 50KTL3 LV Difference
AC output
Rated AC power 50.00 kW 50.00 kW Same
Max AC power 50.00 kW 55.50 kW 5.50 kW apart
Grid connection 3-phase 3-phase Same
Nominal AC voltage 400 V 400 V Same
Max AC current 79.5 A 80.5 A 1.0 A apart
PV input
Max PV power 75.00 kW 75.00 kW Same
DC/AC ratio 1.50 1.50 Same
Max DC voltage 1100 V 1100 V Same
MPPT voltage range 200-1000 V 200-1000 V Same
Start voltage 250 V 250 V Same
MPP trackers 5 - Not published by Growatt
Strings per tracker 2 2 Same
Max input current per tracker 40.0 A 26.0 A +14.0 A for Sunny Tripower X 50 (STP 50-80)
Efficiency
European efficiency 97.7 % 98.4 % +0.7 pp for MAX 50KTL3 LV
Max efficiency 98.1 % 98.8 % +0.7 pp for MAX 50KTL3 LV
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 50.5 kg 82.0 kg -31.5 kg for Sunny Tripower X 50 (STP 50-80)
Weight per kW 1.0 kg/kW 1.6 kg/kW -0.6 kg/kW for Sunny Tripower X 50 (STP 50-80)
Dimensions 718x680x332 mm 600x860x300 mm 718x680x332 mm vs 600x860x300 mm
Ingress protection IP65 IP65 Same
Cooling forced-air forced-air Same
Noise 63 dB - Not published by Growatt
Max operating temperature 60 °C 60 °C Same
Connectivity and safety
Wi-Fi Yes Yes Same
Ethernet Yes - Not published by Growatt
Arc fault protection Yes - Not published by Growatt
Integrated DC switch Yes Yes Same
Warranty
Warranty 5 yrs 5 yrs Same
03

More useful comparisons

Open all inverters
Same type, similar size
Huawei
SMA Solar Sunny Tripower X 50 (STP 50-80) vs Huawei SUN2000-50KTL-JPM0
11 differences, the largest is european efficiency
Same type, similar size
Huawei
SMA Solar Sunny Tripower X 50 (STP 50-80) vs Huawei SUN2000-50KTL-M0
10 differences, the largest is european efficiency
Same type, similar size
Ginlong Solis
SMA Solar Sunny Tripower X 50 (STP 50-80) vs Solis-50K-HV
11 differences, the largest is european efficiency
Same type, similar size
Sungrow
Growatt MAX 50KTL3 LV vs Sungrow SG50CX
6 differences, the largest is max ac power
04

Written summary

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