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STP 12-50 (Sunny Tripower X 12) vs MOD 12KTL3-X 13 of 26 identical Swap Change inverters

SMA Solar STP 12-50 (Sunny Tripower X 12) vs Growatt MOD 12KTL3-X

SMA Solar STP 12-50 (Sunny Tripower X 12)
SMA Solar
STP 12-50 (Sunny Tripower X 12)
12 kW 97.6 % euro Grid-tie
Open inverter page Datasheet PDF
VS
Growatt MOD 12KTL3-X
Growatt
MOD 12KTL3-X
12 kW 98.2 % euro Grid-tie
Open inverter page Datasheet PDF
The verdict

MOD 12KTL3-X leads on the differences that matter

The largest is european efficiency: 0.6 pp more efficient. 13 of 26 comparable parameters are identical, with 6 more left out because at least one datasheet does not publish them.

See all 13 differences
How alike are they
13 of 26 comparable
parameters are identical
identical differs not published
01

What actually differs

13 of 26 parameters
Parameter STP 12-50 (Sunny Tripower X 12) MOD 12KTL3-X Difference
European efficiency 97.6 % 98.2 % 0.6 pp more efficient
Max DC voltage 1000 V 1100 V 100 V apart
Max input current per tracker 24.0 A 26.0 A 2.0 A more headroom
Weight 35.0 kg 14.0 kg 21.0 kg lighter
Weight per kW 2.9 kg/kW 1.2 kg/kW 1.7 kg/kW lighter
Max efficiency 98.2 % 98.6 % 0.4 pp more efficient
Nominal AC voltage 230 V 400 V 170 V apart
MPP trackers 3 2 1 tracker more
Ingress protection IP65 IP66 IP65 vs IP66
Start voltage 188 V 160 V 28 V earlier start
MPPT voltage range 150-1000 V 140-1000 V 150-1000 V vs 140-1000 V
Dimensions 762x728x266 mm 387x425x178 mm 762x728x266 mm vs 387x425x178 mm
Cooling forced-air natural forced-air vs natural
02

Full specification

Parameter STP 12-50 (Sunny Tripower X 12) MOD 12KTL3-X Difference
AC output
Rated AC power 12.00 kW 12.00 kW Same
Max AC power 12.00 kW 12.00 kW Same
Grid connection 3-phase 3-phase Same
Nominal AC voltage 230 V 400 V 170 V apart
Max AC current 20.0 A 20.0 A Same
PV input
Max PV power 18.00 kW 18.00 kW Same
DC/AC ratio 1.50 1.50 Same
Max DC voltage 1000 V 1100 V 100 V apart
MPPT voltage range 150-1000 V 140-1000 V 150-1000 V vs 140-1000 V
Start voltage 188 V 160 V -28 V for MOD 12KTL3-X
MPP trackers 3 2 +1 trackers for STP 12-50 (Sunny Tripower X 12)
Strings per tracker 2 2 Same
Max input current per tracker 24.0 A 26.0 A +2.0 A for MOD 12KTL3-X
Efficiency
European efficiency 97.6 % 98.2 % +0.6 pp for MOD 12KTL3-X
Max efficiency 98.2 % 98.6 % +0.4 pp for MOD 12KTL3-X
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 35.0 kg 14.0 kg -21.0 kg for MOD 12KTL3-X
Weight per kW 2.9 kg/kW 1.2 kg/kW -1.7 kg/kW for MOD 12KTL3-X
Dimensions 762x728x266 mm 387x425x178 mm 762x728x266 mm vs 387x425x178 mm
Ingress protection IP65 IP66 IP65 vs IP66
Cooling forced-air natural forced-air vs natural
Noise 59 dB - Not published by Growatt
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 5 yrs 5 yrs Same
03

More useful comparisons

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SMA Solar STP 12-50 (Sunny Tripower X 12) vs Growatt MOD 12KTL3-X2(Pro)
15 differences, the largest is european efficiency
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SMA Solar STP 12-50 (Sunny Tripower X 12) vs Sungrow SG12KTL-M
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SMA Solar STP 12-50 (Sunny Tripower X 12) vs Sungrow SG12RT-20
11 differences, the largest is european efficiency
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GoodWe
Growatt MOD 12KTL3-X vs GoodWe GW12KLN-DT
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.