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

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

GoodWe GW40K-ET-10
GoodWe
GW40K-ET-10
40 kW 97.8 % euro Hybrid
Open inverter page Datasheet PDF
VS
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
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 GW40K-ET-10 WT 40K-H-US L2 / WT 40K-HU-US L2 Difference
Max DC voltage 1000 V 800 V 200 V apart
Max input current per tracker 42.0 A 32.0 A 10.0 A more headroom
Max AC power 44.00 kW 40.00 kW 4.00 kW apart
Max PV power 60.00 kW 86.40 kW 26.40 kW apart
DC/AC ratio 1.50 2.16 0.66 more oversizing headroom
Weight 62.0 kg 140.0 kg 78.0 kg lighter
Weight per kW 1.6 kg/kW 3.5 kg/kW 1.9 kg/kW lighter
Nominal AC voltage 380 V 208 V 172 V apart
Max AC current 66.7 A 122.2 A 55.5 A apart
Start voltage 160 V 195 V 35 V earlier start
MPPT voltage range 165-850 V 180-600 V 165-850 V vs 180-600 V
Battery voltage 200-800 V 380-650V 200-800 V vs 380-650V
Dimensions 660x520x260 mm 1350x820x501 mm 660x520x260 mm vs 1350x820x501 mm
02

Full specification

Parameter GW40K-ET-10 WT 40K-H-US L2 / WT 40K-HU-US L2 Difference
AC output
Rated AC power 40.00 kW 40.00 kW Same
Max AC power 44.00 kW 40.00 kW 4.00 kW apart
Grid connection 3-phase 3-phase Same
Nominal AC voltage 380 V 208 V 172 V apart
Max AC current 66.7 A 122.2 A 55.5 A apart
PV input
Max PV power 60.00 kW 86.40 kW 26.40 kW apart
DC/AC ratio 1.50 2.16 +0.66 for WT 40K-H-US L2 / WT 40K-HU-US L2
Max DC voltage 1000 V 800 V 200 V apart
MPPT voltage range 165-850 V 180-600 V 165-850 V vs 180-600 V
Start voltage 160 V 195 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 42.0 A 32.0 A +10.0 A for GW40K-ET-10
Efficiency
European efficiency 97.8 % - Not published by Growatt
Max efficiency 98.1 % 98.0 % Effectively the same
CEC efficiency - - Neither datasheet publishes this
Battery
Battery input Yes Yes Same
Battery voltage 200-800 V 380-650V 200-800 V vs 380-650V
Max charge current 100 A - Not published by Growatt
Backup power - - Neither datasheet publishes this
Physical
Weight 62.0 kg 140.0 kg -78.0 kg for GW40K-ET-10
Weight per kW 1.6 kg/kW 3.5 kg/kW -1.9 kg/kW for GW40K-ET-10
Dimensions 660x520x260 mm 1350x820x501 mm 660x520x260 mm vs 1350x820x501 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

More useful comparisons

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GoodWe GW40K-ET-10 vs Deye SUN-40K-SG01HP3-EU-BM4
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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.