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

Growatt MID 40K-HU vs Growatt WT 40K-H-US L2 / WT 40K-HU-US L2

Growatt MID 40K-HU
Growatt
MID 40K-HU
40 kW 97.2 % 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

MID 40K-HU 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 MID 40K-HU 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 40.0 A 32.0 A 8.0 A more headroom
Max efficiency 98.6 % 98.0 % 0.6 pp more efficient
Max PV power 80.00 kW 86.40 kW 6.40 kW apart
Weight 48.0 kg 140.0 kg 92.0 kg lighter
Weight per kW 1.2 kg/kW 3.5 kg/kW 2.3 kg/kW lighter
DC/AC ratio 2.00 2.16 0.16 more oversizing headroom
Nominal AC voltage 400 V 208 V 192 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 200-1000 V 180-600 V 200-1000 V vs 180-600 V
Battery voltage 600-980 V 380-650V 600-980 V vs 380-650V
Dimensions 570x680x256 mm 1350x820x501 mm 570x680x256 mm vs 1350x820x501 mm
02

Full specification

Parameter MID 40K-HU 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 40.00 kW 40.00 kW Same
Grid connection 3-phase 3-phase Same
Nominal AC voltage 400 V 208 V 192 V apart
Max AC current 66.7 A 122.2 A 55.5 A apart
PV input
Max PV power 80.00 kW 86.40 kW 6.40 kW apart
DC/AC ratio 2.00 2.16 +0.16 for WT 40K-H-US L2 / WT 40K-HU-US L2
Max DC voltage 1000 V 800 V 200 V apart
MPPT voltage range 200-1000 V 180-600 V 200-1000 V vs 180-600 V
Start voltage 160 V 195 V -35 V for MID 40K-HU
MPP trackers - 2 Not published by Growatt
Strings per tracker 2 - Not published by Growatt
Max input current per tracker 40.0 A 32.0 A +8.0 A for MID 40K-HU
Efficiency
European efficiency 97.2 % - Not published by Growatt
Max efficiency 98.6 % 98.0 % +0.6 pp for MID 40K-HU
CEC efficiency - - Neither datasheet publishes this
Battery
Battery input Yes Yes Same
Battery voltage 600-980 V 380-650V 600-980 V vs 380-650V
Max charge current 42 A - Not published by Growatt
Backup power 30.0 kW - Not published by Growatt
Physical
Weight 48.0 kg 140.0 kg -92.0 kg for MID 40K-HU
Weight per kW 1.2 kg/kW 3.5 kg/kW -2.3 kg/kW for MID 40K-HU
Dimensions 570x680x256 mm 1350x820x501 mm 570x680x256 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 - - Neither datasheet publishes this
Arc fault protection Yes - Not published by Growatt
Integrated DC switch Yes - Not published by Growatt
Warranty
Warranty 5 yrs - Not published by Growatt
03

More useful comparisons

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Growatt MID 40K-HU vs Ginlong Solis S6-EH3P40K-H
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Growatt MID 40K-HU 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.