Skip to main content
Fronius Symo 15.0-3 208 vs MID 15KTL3-X 7 of 17 identical Swap Change inverters

Fronius Symo 15.0-3 208 vs Growatt MID 15KTL3-X

Fronius Symo 15.0-3 208
Fronius International
Fronius Symo 15.0-3 208
15 kW Grid-tie
Open inverter page Datasheet PDF
VS
Growatt MID 15KTL3-X
Growatt
MID 15KTL3-X
15 kW 98.6 % euro Grid-tie
Open inverter page Datasheet PDF
The verdict

10 differences, and they point both ways

The largest is warranty: 5 yrs longer. 7 of 17 comparable parameters are identical, with 15 more left out because at least one datasheet does not publish them.

See all 10 differences
How alike are they
7 of 17 comparable
parameters are identical
identical differs not published
01

What actually differs

10 of 17 parameters
Parameter Fronius Symo 15.0-3 208 MID 15KTL3-X Difference
Warranty 10 yrs 5 yrs 5 yrs longer
Max DC voltage 1000 V 1100 V 100 V apart
Max efficiency 97.3 % 98.8 % 1.5 pp more efficient
Max AC power 15.00 kW 16.60 kW 1.60 kW apart
Weight 35.5 kg 23.0 kg 12.5 kg lighter
Weight per kW 2.4 kg/kW 1.5 kg/kW 0.8 kg/kW lighter
Max AC current 41.6 A 24.2 A 17.4 A apart
Start voltage 200 V 250 V 50 V earlier start
Ingress protection NEMA 4X IP65 NEMA 4X vs IP65
Dimensions 724x511x226 mm 395x525x222 mm 724x511x226 mm vs 395x525x222 mm
02

Full specification

Parameter Fronius Symo 15.0-3 208 MID 15KTL3-X Difference
AC output
Rated AC power 15.00 kW 15.00 kW Same
Max AC power 15.00 kW 16.60 kW 1.60 kW apart
Grid connection 3-phase 3-phase Same
Nominal AC voltage - 400 V Not published by Fronius International
Max AC current 41.6 A 24.2 A 17.4 A apart
PV input
Max PV power - 22.50 kW Not published by Fronius International
DC/AC ratio - 1.50 Not published by Fronius International
Max DC voltage 1000 V 1100 V 100 V apart
MPPT voltage range - 200-1000 V Not published by Fronius International
Start voltage 200 V 250 V -50 V for Fronius Symo 15.0-3 208
MPP trackers - 2 Not published by Fronius International
Strings per tracker - - Neither datasheet publishes this
Max input current per tracker - - Neither datasheet publishes this
Efficiency
European efficiency - 98.6 % Not published by Fronius International
Max efficiency 97.3 % 98.8 % +1.5 pp for MID 15KTL3-X
CEC efficiency 96.5 % - Not published by Growatt
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 35.5 kg 23.0 kg -12.5 kg for MID 15KTL3-X
Weight per kW 2.4 kg/kW 1.5 kg/kW -0.8 kg/kW for MID 15KTL3-X
Dimensions 724x511x226 mm 395x525x222 mm 724x511x226 mm vs 395x525x222 mm
Ingress protection NEMA 4X IP65 NEMA 4X vs IP65
Cooling forced-air forced-air Same
Noise - - Neither datasheet publishes this
Max operating temperature 60 °C 60 °C Same
Connectivity and safety
Wi-Fi Yes Yes Same
Ethernet Yes Yes Same
Arc fault protection Yes - Not published by Growatt
Integrated DC switch Yes Yes Same
Warranty
Warranty 10 yrs 5 yrs +5 yrs for Fronius Symo 15.0-3 208
03

More useful comparisons

Open all inverters
Same type, similar size
Sungrow
Fronius Symo 15.0-3 208 vs Sungrow SG15KTL-M
8 differences, the largest is max dc voltage
Same type, similar size
Huawei
Fronius Symo 15.0-3 208 vs Huawei SUN2000-15KTL-M2
9 differences, the largest is max dc voltage
Same type, similar size
Huawei
Fronius Symo 15.0-3 208 vs Huawei SUN2000-15KTL-M0
9 differences, the largest is max dc voltage
Same type, similar size
Growatt
Growatt MID 15KTL3-X vs Growatt MOD 15KTL3-X
10 differences, the largest is european efficiency
04

Written summary

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