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WIT 29.9K-XHU vs WT 28K-H-US L2 / WT 28K-HU-US L2 7 of 21 identical Swap Change inverters

Growatt WIT 29.9K-XHU vs Growatt WT 28K-H-US L2 / WT 28K-HU-US L2

Growatt WIT 29.9K-XHU
Growatt
WIT 29.9K-XHU
29.9 kW Hybrid
Open inverter page Datasheet PDF
VS
Growatt WT 28K-H-US L2 / WT 28K-HU-US L2
Growatt
WT 28K-H-US L2 / WT 28K-HU-US L2
28 kW Hybrid
Open inverter page Datasheet PDF
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 differences
How alike are they
7 of 21 comparable
parameters are identical
identical differs not published
01

What actually differs

14 of 21 parameters
Parameter WIT 29.9K-XHU WT 28K-H-US L2 / WT 28K-HU-US L2 Difference
Rated AC power 29.90 kW 28.00 kW 1.90 kW apart
Max DC voltage 1100 V 800 V 300 V apart
Max input current per tracker 40.0 A 32.0 A 8.0 A more headroom
Max AC power 29.90 kW 28.00 kW 1.90 kW apart
Max PV power 59.80 kW 54.00 kW 5.80 kW apart
MPP trackers 4 2 2 trackers more
Weight 90.0 kg 133.0 kg 43.0 kg lighter
Weight per kW 3.0 kg/kW 4.8 kg/kW 1.7 kg/kW lighter
Nominal AC voltage 400 V 208 V 192 V apart
Max AC current 45.3 A 85.6 A 40.3 A apart
DC/AC ratio 2.00 1.93 0.07 more oversizing headroom
MPPT voltage range 180-1000 V 180-600 V 180-1000 V vs 180-600 V
Battery voltage 200-900V 380-650V 200-900V vs 380-650V
Dimensions 585x920x320 mm 1350x820x501 mm 585x920x320 mm vs 1350x820x501 mm
02

Full specification

Parameter WIT 29.9K-XHU WT 28K-H-US L2 / WT 28K-HU-US L2 Difference
AC output
Rated AC power 29.90 kW 28.00 kW 1.90 kW apart
Max AC power 29.90 kW 28.00 kW 1.90 kW apart
Grid connection 3-phase 3-phase Same
Nominal AC voltage 400 V 208 V 192 V apart
Max AC current 45.3 A 85.6 A 40.3 A apart
PV input
Max PV power 59.80 kW 54.00 kW 5.80 kW apart
DC/AC ratio 2.00 1.93 +0.07 for WIT 29.9K-XHU
Max DC voltage 1100 V 800 V 300 V apart
MPPT voltage range 180-1000 V 180-600 V 180-1000 V vs 180-600 V
Start voltage 195 V 195 V Same
MPP trackers 4 2 +2 trackers for WIT 29.9K-XHU
Strings per tracker 2 - Not published by Growatt
Max input current per tracker 40.0 A 32.0 A +8.0 A for WIT 29.9K-XHU
Efficiency
European efficiency - - Neither datasheet publishes this
Max efficiency 98.1 % 98.0 % Effectively the same
CEC efficiency - - Neither datasheet publishes this
Battery
Battery input Yes Yes Same
Battery voltage 200-900V 380-650V 200-900V vs 380-650V
Max charge current 165 A - Not published by Growatt
Backup power - - Neither datasheet publishes this
Physical
Weight 90.0 kg 133.0 kg -43.0 kg for WIT 29.9K-XHU
Weight per kW 3.0 kg/kW 4.8 kg/kW -1.7 kg/kW for WIT 29.9K-XHU
Dimensions 585x920x320 mm 1350x820x501 mm 585x920x320 mm vs 1350x820x501 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

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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.