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SUN2000-20KTL-M2 vs STP 20-US-50 (Sunny Tripower X-US 20) 10 of 23 identical Swap Change inverters

Huawei SUN2000-20KTL-M2 vs SMA Solar STP 20-US-50 (Sunny Tripower X-US 20)

Huawei
SUN2000-20KTL-M2
20 kW 98.3 % euro Grid-tie
Open inverter page Datasheet PDF
VS
SMA Solar STP 20-US-50 (Sunny Tripower X-US 20)
SMA Solar
STP 20-US-50 (Sunny Tripower X-US 20)
20 kW Grid-tie
Open inverter page Datasheet PDF
The verdict

13 differences, and they point both ways

The largest is max dc voltage: 80 V apart. 10 of 23 comparable parameters are identical, with 9 more left out because at least one datasheet does not publish them.

See all 13 differences
How alike are they
10 of 23 comparable
parameters are identical
identical differs not published
01

What actually differs

13 of 23 parameters
Parameter SUN2000-20KTL-M2 STP 20-US-50 (Sunny Tripower X-US 20) Difference
Max DC voltage 1080 V 1000 V 80 V apart
Max input current per tracker 22.0 A 24.0 A 2.0 A more headroom
Max AC power 22.00 kW 20.00 kW 2.00 kW apart
Weight 25.0 kg 35.0 kg 10.0 kg lighter
Weight per kW 1.2 kg/kW 1.8 kg/kW 0.5 kg/kW lighter
Nominal AC voltage 400 V 480 V 80 V apart
Max AC current 33.5 A 24.0 A 9.5 A apart
MPP trackers 2 3 1 tracker more
Ingress protection IP65 Type 4X (UL 50E) IP65 vs Type 4X (UL 50E)
MPPT voltage range 160-950 V 150-1000 V 160-950 V vs 150-1000 V
Start voltage 200 V 188 V 12 V earlier start
Dimensions 470x525x262 mm 762x728x266 mm 470x525x262 mm vs 762x728x266 mm
Cooling natural forced-air natural vs forced-air
02

Full specification

Parameter SUN2000-20KTL-M2 STP 20-US-50 (Sunny Tripower X-US 20) Difference
AC output
Rated AC power 20.00 kW 20.00 kW Same
Max AC power 22.00 kW 20.00 kW 2.00 kW apart
Grid connection 3-phase 3-phase Same
Nominal AC voltage 400 V 480 V 80 V apart
Max AC current 33.5 A 24.0 A 9.5 A apart
PV input
Max PV power 30.00 kW 30.00 kW Same
DC/AC ratio 1.50 1.50 Same
Max DC voltage 1080 V 1000 V 80 V apart
MPPT voltage range 160-950 V 150-1000 V 160-950 V vs 150-1000 V
Start voltage 200 V 188 V -12 V for STP 20-US-50 (Sunny Tripower X-US 20)
MPP trackers 2 3 +1 trackers for STP 20-US-50 (Sunny Tripower X-US 20)
Strings per tracker 2 2 Same
Max input current per tracker 22.0 A 24.0 A +2.0 A for STP 20-US-50 (Sunny Tripower X-US 20)
Efficiency
European efficiency 98.3 % - Not published by SMA Solar
Max efficiency 98.7 % - Not published by SMA Solar
CEC efficiency - 97.5 % Not published by Huawei
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 25.0 kg 35.0 kg -10.0 kg for SUN2000-20KTL-M2
Weight per kW 1.2 kg/kW 1.8 kg/kW -0.5 kg/kW for SUN2000-20KTL-M2
Dimensions 470x525x262 mm 762x728x266 mm 470x525x262 mm vs 762x728x266 mm
Ingress protection IP65 Type 4X (UL 50E) IP65 vs Type 4X (UL 50E)
Cooling natural forced-air natural vs forced-air
Noise - 59 dB Not published by Huawei
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 - 10 yrs Not published by Huawei
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.