Growatt WT 28K-H-US L2 / WT 28K-HU-US L2 vs Growatt WIT 29.9K-XHU
VS
The verdict
WIT 29.9K-XHU leads on the differences that matter
The largest is rated ac power: 1.90 kW apart. 7 of 21 comparable parameters are identical, with 11 more left out because at least one datasheet does not publish them.
See all 14 differencesHow alike are they
7
of 21 comparable
parameters are identical
parameters are identical
identical
differs
not published
01
14 of 21 parameters
What actually differs
Parameter
WT 28K-H-US L2 / WT 28K-HU-US L2
WIT 29.9K-XHU
Difference
Rated AC power
28.00 kW
29.90 kW
1.90 kW apart
Max DC voltage
800 V
1100 V
300 V apart
Max input current per tracker
32.0 A
40.0 A
8.0 A more headroom
Max AC power
28.00 kW
29.90 kW
1.90 kW apart
Max PV power
54.00 kW
59.80 kW
5.80 kW apart
MPP trackers
2
4
2 trackers more
Weight
133.0 kg
90.0 kg
43.0 kg lighter
Weight per kW
4.8 kg/kW
3.0 kg/kW
1.7 kg/kW lighter
Nominal AC voltage
208 V
400 V
192 V apart
Max AC current
85.6 A
45.3 A
40.3 A apart
DC/AC ratio
1.93
2.00
0.07 more oversizing headroom
MPPT voltage range
180-600 V
180-1000 V
180-600 V vs 180-1000 V
Battery voltage
380-650V
200-900V
380-650V vs 200-900V
Dimensions
1350x820x501 mm
585x920x320 mm
1350x820x501 mm vs 585x920x320 mm
02
Full specification
Parameter
WT 28K-H-US L2 / WT 28K-HU-US L2
WIT 29.9K-XHU
Difference
AC output
Rated AC power
28.00 kW
29.90 kW
1.90 kW apart
Max AC power
28.00 kW
29.90 kW
1.90 kW apart
Grid connection
3-phase
3-phase
Same
Nominal AC voltage
208 V
400 V
192 V apart
Max AC current
85.6 A
45.3 A
40.3 A apart
PV input
Max PV power
54.00 kW
59.80 kW
5.80 kW apart
DC/AC ratio
1.93
2.00
+0.07 for WIT 29.9K-XHU
Max DC voltage
800 V
1100 V
300 V apart
MPPT voltage range
180-600 V
180-1000 V
180-600 V vs 180-1000 V
Start voltage
195 V
195 V
Same
MPP trackers
2
4
+2 trackers for WIT 29.9K-XHU
Strings per tracker
-
2
Not published by Growatt
Max input current per tracker
32.0 A
40.0 A
+8.0 A for WIT 29.9K-XHU
Efficiency
European efficiency
-
-
Neither datasheet publishes this
Max efficiency
98.0 %
98.1 %
Effectively the same
CEC efficiency
-
-
Neither datasheet publishes this
Battery
Battery input
Yes
Yes
Same
Battery voltage
380-650V
200-900V
380-650V vs 200-900V
Max charge current
-
165 A
Not published by Growatt
Backup power
-
-
Neither datasheet publishes this
Physical
Weight
133.0 kg
90.0 kg
-43.0 kg for WIT 29.9K-XHU
Weight per kW
4.8 kg/kW
3.0 kg/kW
-1.7 kg/kW for WIT 29.9K-XHU
Dimensions
1350x820x501 mm
585x920x320 mm
1350x820x501 mm vs 585x920x320 mm
Ingress protection
IP66
IP66
Same
Cooling
forced-air
forced-air
Same
Noise
-
55 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
-
-
Neither datasheet publishes this
Integrated DC switch
-
-
Neither datasheet publishes this
Warranty
Warranty
-
5 yrs
Not published by Growatt
03
Open all inverters
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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.