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STP 20000TL-30 vs SUN2000-20KTL-M2 8 of 23 identical Swap Change inverters

SMA Solar STP 20000TL-30 vs Huawei SUN2000-20KTL-M2

SMA Solar
STP 20000TL-30
20 kW 98.0 % euro Grid-tie
Open inverter page Datasheet PDF
VS
Huawei
SUN2000-20KTL-M2
20 kW 98.3 % euro Grid-tie
Open inverter page Datasheet PDF
The verdict

15 differences, and they point both ways

The largest is max dc voltage: 80 V apart. 8 of 23 comparable parameters are identical, with 9 more left out because at least one datasheet does not publish them.

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

What actually differs

15 of 23 parameters
Parameter STP 20000TL-30 SUN2000-20KTL-M2 Difference
Max DC voltage 1000 V 1080 V 80 V apart
Max input current per tracker 33.0 A 22.0 A 11.0 A more headroom
Max AC power 20.00 kW 22.00 kW 2.00 kW apart
Max PV power 36.00 kW 30.00 kW 6.00 kW apart
DC/AC ratio 1.80 1.50 0.30 more oversizing headroom
Weight 61.0 kg 25.0 kg 36.0 kg lighter
Weight per kW 3.0 kg/kW 1.2 kg/kW 1.8 kg/kW lighter
European efficiency 98.0 % 98.3 % 0.3 pp more efficient
Max AC current 29.0 A 33.5 A 4.5 A apart
Max efficiency 98.4 % 98.7 % 0.2 pp more efficient
MPPT voltage range 240-800 V 160-950 V 240-800 V vs 160-950 V
Start voltage 188 V 200 V 12 V earlier start
Strings per tracker 3 2 1 string apart
Dimensions 682x661x264 mm 470x525x262 mm 682x661x264 mm vs 470x525x262 mm
Cooling forced-air natural forced-air vs natural
02

Full specification

Parameter STP 20000TL-30 SUN2000-20KTL-M2 Difference
AC output
Rated AC power 20.00 kW 20.00 kW Same
Max AC power 20.00 kW 22.00 kW 2.00 kW apart
Grid connection 3-phase 3-phase Same
Nominal AC voltage 400 V 400 V Same
Max AC current 29.0 A 33.5 A 4.5 A apart
PV input
Max PV power 36.00 kW 30.00 kW 6.00 kW apart
DC/AC ratio 1.80 1.50 +0.30 for STP 20000TL-30
Max DC voltage 1000 V 1080 V 80 V apart
MPPT voltage range 240-800 V 160-950 V 240-800 V vs 160-950 V
Start voltage 188 V 200 V -12 V for STP 20000TL-30
MPP trackers 2 2 Same
Strings per tracker 3 2 1 string apart
Max input current per tracker 33.0 A 22.0 A +11.0 A for STP 20000TL-30
Efficiency
European efficiency 98.0 % 98.3 % +0.3 pp for SUN2000-20KTL-M2
Max efficiency 98.4 % 98.7 % +0.2 pp for SUN2000-20KTL-M2
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 61.0 kg 25.0 kg -36.0 kg for SUN2000-20KTL-M2
Weight per kW 3.0 kg/kW 1.2 kg/kW -1.8 kg/kW for SUN2000-20KTL-M2
Dimensions 682x661x264 mm 470x525x262 mm 682x661x264 mm vs 470x525x262 mm
Ingress protection IP65 IP65 Same
Cooling forced-air natural forced-air vs natural
Noise 51 dB - Not published by Huawei
Max operating temperature 60 °C 60 °C Same
Connectivity and safety
Wi-Fi - Yes Not published by SMA Solar
Ethernet Yes Yes Same
Arc fault protection - Yes Not published by SMA Solar
Integrated DC switch Yes Yes Same
Warranty
Warranty 5 yrs - Not published by Huawei
03

More useful comparisons

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SMA Solar STP 20000TL-30 vs Growatt MID 20KTL3-X
12 differences, the largest is european efficiency
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Fronius International
SMA Solar STP 20000TL-30 vs Fronius Verto 20.0
14 differences, the largest is max input current per tracker
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Sungrow
SMA Solar STP 20000TL-30 vs Sungrow SG20KTL-M
11 differences, the largest is max dc voltage
Same type, similar size
Huawei
Huawei SUN2000-20KTL-M2 vs Huawei SUN2000-20KTL-M0
The same specification on paper
04

Written summary

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