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STP 12-50 (Sunny Tripower X 12) vs SG12KTL-M 7 of 20 identical Swap Change inverters

SMA Solar STP 12-50 (Sunny Tripower X 12) vs Sungrow SG12KTL-M

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
Sungrow
SG12KTL-M
12 kW 98.1 % euro Grid-tie
Open inverter page Datasheet PDF
The verdict

SG12KTL-M leads on the differences that matter

The largest is european efficiency: 0.5 pp more efficient. 7 of 20 comparable parameters are identical, with 12 more left out because at least one datasheet does not publish them.

See all 13 differences
How alike are they
7 of 20 comparable
parameters are identical
identical differs not published
01

What actually differs

13 of 20 parameters
Parameter STP 12-50 (Sunny Tripower X 12) SG12KTL-M Difference
European efficiency 97.6 % 98.1 % 0.5 pp more efficient
Max DC voltage 1000 V 1100 V 100 V apart
Max input current per tracker 24.0 A 11.0 A 13.0 A more headroom
Weight 35.0 kg 20.0 kg 15.0 kg lighter
Weight per kW 2.9 kg/kW 1.7 kg/kW 1.2 kg/kW lighter
Max efficiency 98.2 % 98.6 % 0.4 pp more efficient
Nominal AC voltage 230 V 400 V 170 V apart
Start voltage 188 V 250 V 62 V earlier start
MPP trackers 3 2 1 tracker more
MPPT voltage range 150-1000 V 200-1000 V 150-1000 V vs 200-1000 V
Strings per tracker 2 1 1 string apart
Dimensions 762x728x266 mm 485x370x160 mm 762x728x266 mm vs 485x370x160 mm
Cooling forced-air natural forced-air vs natural
02

Full specification

Parameter STP 12-50 (Sunny Tripower X 12) SG12KTL-M 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 - Not published by Sungrow
DC/AC ratio 1.50 - Not published by Sungrow
Max DC voltage 1000 V 1100 V 100 V apart
MPPT voltage range 150-1000 V 200-1000 V 150-1000 V vs 200-1000 V
Start voltage 188 V 250 V -62 V for STP 12-50 (Sunny Tripower X 12)
MPP trackers 3 2 +1 trackers for STP 12-50 (Sunny Tripower X 12)
Strings per tracker 2 1 1 string apart
Max input current per tracker 24.0 A 11.0 A +13.0 A for STP 12-50 (Sunny Tripower X 12)
Efficiency
European efficiency 97.6 % 98.1 % +0.5 pp for SG12KTL-M
Max efficiency 98.2 % 98.6 % +0.4 pp for SG12KTL-M
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 20.0 kg -15.0 kg for SG12KTL-M
Weight per kW 2.9 kg/kW 1.7 kg/kW -1.2 kg/kW for SG12KTL-M
Dimensions 762x728x266 mm 485x370x160 mm 762x728x266 mm vs 485x370x160 mm
Ingress protection IP65 IP65 Same
Cooling forced-air natural forced-air vs natural
Noise 59 dB - Not published by Sungrow
Max operating temperature 60 °C 60 °C Same
Connectivity and safety
Wi-Fi Yes - Not published by Sungrow
Ethernet Yes - Not published by Sungrow
Arc fault protection Yes - Not published by Sungrow
Integrated DC switch Yes Yes Same
Warranty
Warranty 5 yrs - Not published by Sungrow
03

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04

Written summary

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