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

Fronius Verto 33.3 Plus vs Growatt MID 33K-HU

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

Full specification

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