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WT 40K-H-US L2 / WT 40K-HU-US L2 vs GW40K-ET-10 7 of 20 identical Swap Change inverters

Growatt WT 40K-H-US L2 / WT 40K-HU-US L2 vs GoodWe GW40K-ET-10

Growatt WT 40K-H-US L2 / WT 40K-HU-US L2
Growatt
WT 40K-H-US L2 / WT 40K-HU-US L2
40 kW Hybrid
Open inverter page Datasheet PDF
VS
GoodWe GW40K-ET-10
GoodWe
GW40K-ET-10
40 kW 97.8 % euro Hybrid
Open inverter page Datasheet PDF
The verdict

GW40K-ET-10 leads on the differences that matter

The largest is max dc voltage: 200 V apart. 7 of 20 comparable parameters are identical, with 12 more left out because at least one datasheet does not publish them.

See all 13 differences
How alike are they
7 of 20 comparable
parameters are identical
identical differs not published
01

What actually differs

13 of 20 parameters
Parameter WT 40K-H-US L2 / WT 40K-HU-US L2 GW40K-ET-10 Difference
Max DC voltage 800 V 1000 V 200 V apart
Max input current per tracker 32.0 A 42.0 A 10.0 A more headroom
Max AC power 40.00 kW 44.00 kW 4.00 kW apart
Max PV power 86.40 kW 60.00 kW 26.40 kW apart
DC/AC ratio 2.16 1.50 0.66 more oversizing headroom
Weight 140.0 kg 62.0 kg 78.0 kg lighter
Weight per kW 3.5 kg/kW 1.6 kg/kW 1.9 kg/kW lighter
Nominal AC voltage 208 V 380 V 172 V apart
Max AC current 122.2 A 66.7 A 55.5 A apart
Start voltage 195 V 160 V 35 V earlier start
MPPT voltage range 180-600 V 165-850 V 180-600 V vs 165-850 V
Battery voltage 380-650V 200-800 V 380-650V vs 200-800 V
Dimensions 1350x820x501 mm 660x520x260 mm 1350x820x501 mm vs 660x520x260 mm
02

Full specification

Parameter WT 40K-H-US L2 / WT 40K-HU-US L2 GW40K-ET-10 Difference
AC output
Rated AC power 40.00 kW 40.00 kW Same
Max AC power 40.00 kW 44.00 kW 4.00 kW apart
Grid connection 3-phase 3-phase Same
Nominal AC voltage 208 V 380 V 172 V apart
Max AC current 122.2 A 66.7 A 55.5 A apart
PV input
Max PV power 86.40 kW 60.00 kW 26.40 kW apart
DC/AC ratio 2.16 1.50 +0.66 for WT 40K-H-US L2 / WT 40K-HU-US L2
Max DC voltage 800 V 1000 V 200 V apart
MPPT voltage range 180-600 V 165-850 V 180-600 V vs 165-850 V
Start voltage 195 V 160 V -35 V for GW40K-ET-10
MPP trackers 2 - Not published by GoodWe
Strings per tracker - 2 Not published by Growatt
Max input current per tracker 32.0 A 42.0 A +10.0 A for GW40K-ET-10
Efficiency
European efficiency - 97.8 % Not published by Growatt
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 200-800 V 380-650V vs 200-800 V
Max charge current - 100 A Not published by Growatt
Backup power - - Neither datasheet publishes this
Physical
Weight 140.0 kg 62.0 kg -78.0 kg for GW40K-ET-10
Weight per kW 3.5 kg/kW 1.6 kg/kW -1.9 kg/kW for GW40K-ET-10
Dimensions 1350x820x501 mm 660x520x260 mm 1350x820x501 mm vs 660x520x260 mm
Ingress protection IP66 IP66 Same
Cooling forced-air forced-air Same
Noise - - Neither datasheet publishes this
Max operating temperature 60 °C 60 °C Same
Connectivity and safety
Wi-Fi - Yes Not published by Growatt
Ethernet - - Neither datasheet publishes this
Arc fault protection - Yes Not published by Growatt
Integrated DC switch - Yes Not published by Growatt
Warranty
Warranty - - Neither datasheet publishes this
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.