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Fronius Verto 20.0 vs SG20KTL-M 10 of 20 identical Swap Change inverters

Fronius Verto 20.0 vs Sungrow SG20KTL-M

Fronius Verto 20.0
Fronius International
Fronius Verto 20.0
20 kW 98.3 % euro Grid-tie
Open inverter page Datasheet PDF
VS
Sungrow
SG20KTL-M
20 kW 98.3 % euro Grid-tie
Open inverter page Datasheet PDF
The verdict

Fronius Verto 20.0 leads on the differences that matter

The largest is max dc voltage: 100 V apart. 10 of 20 comparable parameters are identical, with 12 more left out because at least one datasheet does not publish them.

See all 10 differences
How alike are they
10 of 20 comparable
parameters are identical
identical differs not published
01

What actually differs

10 of 20 parameters
Parameter Fronius Verto 20.0 SG20KTL-M Difference
Max DC voltage 1000 V 1100 V 100 V apart
Max input current per tracker 28.0 A 22.0 A 6.0 A more headroom
MPP trackers 4 2 2 trackers more
Weight 35.2 kg 24.0 kg 11.2 kg lighter
Weight per kW 1.8 kg/kW 1.2 kg/kW 0.6 kg/kW lighter
Start voltage 150 V 250 V 100 V earlier start
Max AC current 30.3 A 31.9 A 1.6 A apart
Ingress protection IP66 IP65 IP66 vs IP65
MPPT voltage range 150-870 V 200-1000 V 150-870 V vs 200-1000 V
Dimensions 730x540x278 mm 485x370x210 mm 730x540x278 mm vs 485x370x210 mm
02

Full specification

Parameter Fronius Verto 20.0 SG20KTL-M Difference
AC output
Rated AC power 20.00 kW 20.00 kW Same
Max AC power 20.00 kW 20.00 kW Same
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 - 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 150-870 V 200-1000 V 150-870 V vs 200-1000 V
Start voltage 150 V 250 V -100 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 22.0 A +6.0 A for Fronius Verto 20.0
Efficiency
European efficiency 98.3 % 98.3 % Same
Max efficiency 98.6 % 98.6 % Same
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 24.0 kg -11.2 kg for SG20KTL-M
Weight per kW 1.8 kg/kW 1.2 kg/kW -0.6 kg/kW for SG20KTL-M
Dimensions 730x540x278 mm 485x370x210 mm 730x540x278 mm vs 485x370x210 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 - 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 - - Neither datasheet publishes this
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.