Fronius Verto 33.3 Plus vs Growatt WT 35K-H-US L2 / WT 35K-HU-US L2
Fronius International
Fronius Verto 33.3 Plus
33.3 kW
98.0 % euro
Hybrid
VS
The verdict
15 differences, and they point both ways
The largest is rated ac power: 1.70 kW apart. 6 of 21 comparable parameters are identical, with 11 more left out because at least one datasheet does not publish them.
See all 15 differencesHow alike are they
6
of 21 comparable
parameters are identical
parameters are identical
identical
differs
not published
01
15 of 21 parameters
What actually differs
Parameter
Fronius Verto 33.3 Plus
WT 35K-H-US L2 / WT 35K-HU-US L2
Difference
Rated AC power
33.30 kW
35.00 kW
1.70 kW apart
Max DC voltage
1000 V
800 V
200 V apart
Max input current per tracker
28.0 A
32.0 A
4.0 A more headroom
Max AC power
33.30 kW
35.00 kW
1.70 kW apart
Max PV power
39.00 kW
75.60 kW
36.60 kW apart
DC/AC ratio
1.17
2.16
0.99 more oversizing headroom
Weight
43.0 kg
133.0 kg
90.0 kg lighter
Weight per kW
1.3 kg/kW
3.8 kg/kW
2.5 kg/kW lighter
Nominal AC voltage
400 V
208 V
192 V apart
Max AC current
50.5 A
106.9 A
56.4 A apart
Start voltage
150 V
195 V
45 V earlier start
MPP trackers
3
2
1 tracker more
MPPT voltage range
150-870 V
180-600 V
150-870 V vs 180-600 V
Battery voltage
150-700
380-650V
150-700 vs 380-650V
Dimensions
865x574x279 mm
1350x820x501 mm
865x574x279 mm vs 1350x820x501 mm
02
Full specification
Parameter
Fronius Verto 33.3 Plus
WT 35K-H-US L2 / WT 35K-HU-US L2
Difference
AC output
Rated AC power
33.30 kW
35.00 kW
1.70 kW apart
Max AC power
33.30 kW
35.00 kW
1.70 kW apart
Grid connection
3-phase
3-phase
Same
Nominal AC voltage
400 V
208 V
192 V apart
Max AC current
50.5 A
106.9 A
56.4 A apart
PV input
Max PV power
39.00 kW
75.60 kW
36.60 kW apart
DC/AC ratio
1.17
2.16
+0.99 for WT 35K-H-US L2 / WT 35K-HU-US L2
Max DC voltage
1000 V
800 V
200 V apart
MPPT voltage range
150-870 V
180-600 V
150-870 V vs 180-600 V
Start voltage
150 V
195 V
-45 V for Fronius Verto 33.3 Plus
MPP trackers
3
2
+1 trackers for Fronius Verto 33.3 Plus
Strings per tracker
2
-
Not published by Growatt
Max input current per tracker
28.0 A
32.0 A
+4.0 A for WT 35K-H-US L2 / WT 35K-HU-US L2
Efficiency
European efficiency
98.0 %
-
Not published by Growatt
Max efficiency
98.2 %
98.0 %
Effectively the same
CEC efficiency
-
-
Neither datasheet publishes this
Battery
Battery input
Yes
Yes
Same
Battery voltage
150-700
380-650V
150-700 vs 380-650V
Max charge current
50 A
-
Not published by Growatt
Backup power
-
-
Neither datasheet publishes this
Physical
Weight
43.0 kg
133.0 kg
-90.0 kg for Fronius Verto 33.3 Plus
Weight per kW
1.3 kg/kW
3.8 kg/kW
-2.5 kg/kW for Fronius Verto 33.3 Plus
Dimensions
865x574x279 mm
1350x820x501 mm
865x574x279 mm vs 1350x820x501 mm
Ingress protection
IP66
IP66
Same
Cooling
forced-air
forced-air
Same
Noise
57 dB
-
Not published by Growatt
Max operating temperature
60 °C
60 °C
Same
Connectivity and safety
Wi-Fi
Yes
-
Not published by Growatt
Ethernet
Yes
-
Not published by Growatt
Arc fault protection
Yes
-
Not published by Growatt
Integrated DC switch
Yes
-
Not published by Growatt
Warranty
Warranty
-
-
Neither datasheet publishes this
03
Open all inverters
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15 differences, the largest is rated ac power
04
Written summary
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Every figure here is from the manufacturers' own datasheets - a dash means the value is not published, never an estimate.