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Fronius Verto 20.0 vs SG20RT-P2 12 of 25 identical Swap Change inverters

Fronius Verto 20.0 vs Sungrow SG20RT-P2

Fronius Verto 20.0
Fronius International
Fronius Verto 20.0
20 kW 98.3 % euro Grid-tie
Open inverter page Datasheet PDF
VS
Sungrow SG20RT-P2
Sungrow
SG20RT-P2
20 kW 97.9 % euro Grid-tie
Open inverter page Datasheet PDF
The verdict

13 differences, and they point both ways

The largest is max dc voltage: 100 V apart. 12 of 25 comparable parameters are identical, with 7 more left out because at least one datasheet does not publish them.

See all 13 differences
How alike are they
12 of 25 comparable
parameters are identical
identical differs not published
01

What actually differs

13 of 25 parameters
Parameter Fronius Verto 20.0 SG20RT-P2 Difference
Max DC voltage 1000 V 1100 V 100 V apart
Max input current per tracker 28.0 A 32.0 A 4.0 A more headroom
European efficiency 98.3 % 97.9 % 0.4 pp more efficient
Max AC power 20.00 kW 22.00 kW 2.00 kW apart
MPP trackers 4 2 2 trackers more
Weight 35.2 kg 22.0 kg 13.2 kg lighter
Weight per kW 1.8 kg/kW 1.1 kg/kW 0.7 kg/kW lighter
Max efficiency 98.6 % 98.3 % 0.3 pp more efficient
Max AC current 30.3 A 31.9 A 1.6 A apart
Start voltage 150 V 180 V 30 V earlier start
Ingress protection IP66 IP65 IP66 vs IP65
MPPT voltage range 150-870 V 160-1000 V 150-870 V vs 160-1000 V
Dimensions 730x540x278 mm 480x370x195 mm 730x540x278 mm vs 480x370x195 mm
02

Full specification

Parameter Fronius Verto 20.0 SG20RT-P2 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 30.3 A 31.9 A 1.6 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 1000 V 1100 V 100 V apart
MPPT voltage range 150-870 V 160-1000 V 150-870 V vs 160-1000 V
Start voltage 150 V 180 V -30 V for Fronius Verto 20.0
MPP trackers 4 2 +2 trackers for Fronius Verto 20.0
Strings per tracker 2 2 Same
Max input current per tracker 28.0 A 32.0 A +4.0 A for SG20RT-P2
Efficiency
European efficiency 98.3 % 97.9 % +0.4 pp for Fronius Verto 20.0
Max efficiency 98.6 % 98.3 % +0.3 pp for Fronius Verto 20.0
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 35.2 kg 22.0 kg -13.2 kg for SG20RT-P2
Weight per kW 1.8 kg/kW 1.1 kg/kW -0.7 kg/kW for SG20RT-P2
Dimensions 730x540x278 mm 480x370x195 mm 730x540x278 mm vs 480x370x195 mm
Ingress protection IP66 IP65 IP66 vs IP65
Cooling forced-air forced-air Same
Noise 56 dB - Not published by Sungrow
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 - - Neither datasheet publishes this
03

More useful comparisons

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Fronius Verto 20.0 vs Huawei SUN2000-20KTL-M2
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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.