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MID 33K-HU vs Fronius Verto 33.3 Plus 13 of 27 identical Swap Change inverters

Growatt MID 33K-HU vs Fronius Verto 33.3 Plus

Growatt MID 33K-HU
Growatt
MID 33K-HU
33 kW 97.2 % euro Hybrid
Open inverter page Datasheet PDF
VS
Fronius Verto 33.3 Plus
Fronius International
Fronius Verto 33.3 Plus
33.3 kW 98.0 % euro Hybrid
Open inverter page Datasheet PDF
The verdict

14 differences, and they point both ways

The largest is rated ac power: 0.30 kW apart. 13 of 27 comparable parameters are identical, with 5 more left out because at least one datasheet does not publish them.

See all 14 differences
How alike are they
13 of 27 comparable
parameters are identical
identical differs not published
01

What actually differs

14 of 27 parameters
Parameter MID 33K-HU Fronius Verto 33.3 Plus Difference
Rated AC power 33.00 kW 33.30 kW 0.30 kW apart
European efficiency 97.2 % 98.0 % 0.8 pp more efficient
Max input current per tracker 40.0 A 28.0 A 12.0 A more headroom
Max AC power 33.00 kW 33.30 kW 0.30 kW apart
Max PV power 66.00 kW 39.00 kW 27.00 kW apart
DC/AC ratio 2.00 1.17 0.83 more oversizing headroom
Max charge current 42 A 50 A 8 A faster charging
Weight 48.0 kg 43.0 kg 5.0 kg lighter
Max efficiency 98.6 % 98.2 % 0.4 pp more efficient
Max AC current 55.0 A 50.5 A 4.5 A apart
MPPT voltage range 200-1000 V 150-870 V 200-1000 V vs 150-870 V
Battery voltage 600-980 V 150-700 600-980 V vs 150-700
Start voltage 160 V 150 V 10 V earlier start
Dimensions 570x680x256 mm 865x574x279 mm 570x680x256 mm vs 865x574x279 mm
02

Full specification

Parameter MID 33K-HU Fronius Verto 33.3 Plus Difference
AC output
Rated AC power 33.00 kW 33.30 kW 0.30 kW apart
Max AC power 33.00 kW 33.30 kW 0.30 kW apart
Grid connection 3-phase 3-phase Same
Nominal AC voltage 400 V 400 V Same
Max AC current 55.0 A 50.5 A 4.5 A apart
PV input
Max PV power 66.00 kW 39.00 kW 27.00 kW apart
DC/AC ratio 2.00 1.17 +0.83 for MID 33K-HU
Max DC voltage 1000 V 1000 V Same
MPPT voltage range 200-1000 V 150-870 V 200-1000 V vs 150-870 V
Start voltage 160 V 150 V -10 V for Fronius Verto 33.3 Plus
MPP trackers - 3 Not published by Growatt
Strings per tracker 2 2 Same
Max input current per tracker 40.0 A 28.0 A +12.0 A for MID 33K-HU
Efficiency
European efficiency 97.2 % 98.0 % +0.8 pp for Fronius Verto 33.3 Plus
Max efficiency 98.6 % 98.2 % +0.4 pp for MID 33K-HU
CEC efficiency - - Neither datasheet publishes this
Battery
Battery input Yes Yes Same
Battery voltage 600-980 V 150-700 600-980 V vs 150-700
Max charge current 42 A 50 A +8 A for Fronius Verto 33.3 Plus
Backup power 30.0 kW - Not published by Fronius International
Physical
Weight 48.0 kg 43.0 kg -5.0 kg for Fronius Verto 33.3 Plus
Weight per kW 1.5 kg/kW 1.3 kg/kW Effectively the same
Dimensions 570x680x256 mm 865x574x279 mm 570x680x256 mm vs 865x574x279 mm
Ingress protection IP66 IP66 Same
Cooling forced-air forced-air Same
Noise 55 dB 57 dB Effectively the same
Max operating temperature 60 °C 60 °C Same
Connectivity and safety
Wi-Fi Yes Yes Same
Ethernet - Yes Not published by Growatt
Arc fault protection Yes Yes Same
Integrated DC switch Yes Yes Same
Warranty
Warranty 5 yrs - Not published by Fronius International
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.