Skip to main content
Fronius Verto 20.0 vs SUN-20K-G02-LV 8 of 25 identical Swap Change inverters

Fronius Verto 20.0 vs Deye SUN-20K-G02-LV

Fronius Verto 20.0
Fronius International
Fronius Verto 20.0
20 kW 98.3 % euro Grid-tie
Open inverter page Datasheet PDF
VS
Deye
SUN-20K-G02-LV
20 kW 98.0 % euro Grid-tie
Open inverter page Datasheet PDF
The verdict

17 differences, and they point both ways

The largest is max dc voltage: 200 V apart. 8 of 25 comparable parameters are identical, with 7 more left out because at least one datasheet does not publish them.

See all 17 differences
How alike are they
8 of 25 comparable
parameters are identical
identical differs not published
01

What actually differs

17 of 25 parameters
Parameter Fronius Verto 20.0 SUN-20K-G02-LV Difference
Max DC voltage 1000 V 800 V 200 V apart
Max input current per tracker 28.0 A 40.0 A 12.0 A more headroom
European efficiency 98.3 % 98.0 % 0.3 pp more efficient
Max AC power 20.00 kW 22.00 kW 2.00 kW apart
Max PV power 30.00 kW 26.00 kW 4.00 kW apart
Weight 35.2 kg 44.5 kg 9.3 kg lighter
Noise 56 dB 45 dB 12 dB quieter
DC/AC ratio 1.50 1.30 0.20 more oversizing headroom
Weight per kW 1.8 kg/kW 2.2 kg/kW 0.5 kg/kW lighter
Nominal AC voltage 400 V 220 V 180 V apart
Max AC current 30.3 A 57.8 A 27.5 A apart
Start voltage 150 V 250 V 100 V earlier start
Max operating temperature 60 °C 65 °C 5 °C more heat tolerant
Ingress protection IP66 IP65 IP66 vs IP65
MPPT voltage range 150-870 V 200-700 V 150-870 V vs 200-700 V
Strings per tracker 2 3 1 string apart
Dimensions 730x540x278 mm 537x648x304 mm 730x540x278 mm vs 537x648x304 mm
02

Full specification

Parameter Fronius Verto 20.0 SUN-20K-G02-LV 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 220 V 180 V apart
Max AC current 30.3 A 57.8 A 27.5 A apart
PV input
Max PV power 30.00 kW 26.00 kW 4.00 kW apart
DC/AC ratio 1.50 1.30 +0.20 for Fronius Verto 20.0
Max DC voltage 1000 V 800 V 200 V apart
MPPT voltage range 150-870 V 200-700 V 150-870 V vs 200-700 V
Start voltage 150 V 250 V -100 V for Fronius Verto 20.0
MPP trackers 4 4 Same
Strings per tracker 2 3 1 string apart
Max input current per tracker 28.0 A 40.0 A +12.0 A for SUN-20K-G02-LV
Efficiency
European efficiency 98.3 % 98.0 % +0.3 pp for Fronius Verto 20.0
Max efficiency 98.6 % 98.7 % Effectively the 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 44.5 kg -9.3 kg for Fronius Verto 20.0
Weight per kW 1.8 kg/kW 2.2 kg/kW -0.5 kg/kW for Fronius Verto 20.0
Dimensions 730x540x278 mm 537x648x304 mm 730x540x278 mm vs 537x648x304 mm
Ingress protection IP66 IP65 IP66 vs IP65
Cooling forced-air forced-air Same
Noise 56 dB 45 dB -12 dB for SUN-20K-G02-LV
Max operating temperature 60 °C 65 °C +5 °C for SUN-20K-G02-LV
Connectivity and safety
Wi-Fi Yes Yes Same
Ethernet Yes Yes Same
Arc fault protection Yes - Not published by Deye
Integrated DC switch Yes Yes Same
Warranty
Warranty - - Neither datasheet publishes this
03

More useful comparisons

Open all inverters
Same type, similar size
Growatt
Fronius Verto 20.0 vs Growatt MID 20KTL3-X
11 differences, the largest is max dc voltage
Same type, similar size
Sungrow
Fronius Verto 20.0 vs Sungrow SG20KTL-M
10 differences, the largest is max dc voltage
Same type, similar size
Huawei
Fronius Verto 20.0 vs Huawei SUN2000-20KTL-M2
12 differences, the largest is max dc voltage
04

Written summary

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