Skip to main content
Fronius Verto 15.0 vs SG15KTL-M 10 of 20 identical Swap Change inverters

Fronius Verto 15.0 vs Sungrow SG15KTL-M

Fronius Verto 15.0
Fronius International
Fronius Verto 15.0
15 kW 98.2 % euro Grid-tie
Open inverter page Datasheet PDF
VS
Sungrow
SG15KTL-M
15 kW 98.3 % euro Grid-tie
Open inverter page Datasheet PDF
The verdict

Fronius Verto 15.0 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 15.0 SG15KTL-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 2.3 kg/kW 1.6 kg/kW 0.7 kg/kW lighter
Start voltage 150 V 250 V 100 V earlier start
Ingress protection IP66 IP65 IP66 vs IP65
Max AC current 22.7 A 24.0 A 1.3 A apart
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 15.0 SG15KTL-M Difference
AC output
Rated AC power 15.00 kW 15.00 kW Same
Max AC power 15.00 kW 15.00 kW Same
Grid connection 3-phase 3-phase Same
Nominal AC voltage 400 V 400 V Same
Max AC current 22.7 A 24.0 A 1.3 A apart
PV input
Max PV power 22.50 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 15.0
MPP trackers 4 2 +2 trackers for Fronius Verto 15.0
Strings per tracker 2 2 Same
Max input current per tracker 28.0 A 22.0 A +6.0 A for Fronius Verto 15.0
Efficiency
European efficiency 98.2 % 98.3 % Effectively the same
Max efficiency 98.5 % 98.6 % 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 24.0 kg -11.2 kg for SG15KTL-M
Weight per kW 2.3 kg/kW 1.6 kg/kW -0.7 kg/kW for SG15KTL-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

More useful comparisons

Open all inverters
Same type, similar size
Growatt
Fronius Verto 15.0 vs Growatt MID 15KTL3-X
12 differences, the largest is max dc voltage
Same type, similar size
Huawei
Fronius Verto 15.0 vs Huawei SUN2000-15KTL-M2
12 differences, the largest is max dc voltage
Same type, similar size
Huawei
Fronius Verto 15.0 vs Huawei SUN2000-15KTL-M0
12 differences, the largest is max dc voltage
Same type, similar size
Growatt
Sungrow SG15KTL-M vs Growatt MOD 15KTL3-X
9 differences, the largest is max input current per tracker
04

Written summary

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