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GW50K-ET-10 vs WIT 55K-A-US L2 / WIT 55K-AU-US L2 4 of 12 identical Swap Change inverters

GoodWe GW50K-ET-10 vs Growatt WIT 55K-A-US L2 / WIT 55K-AU-US L2

GoodWe GW50K-ET-10
GoodWe
GW50K-ET-10
50 kW 97.8 % euro Hybrid
Open inverter page Datasheet PDF
VS
Growatt WIT 55K-A-US L2 / WIT 55K-AU-US L2
Growatt
WIT 55K-A-US L2 / WIT 55K-AU-US L2
55 kW Hybrid
Open inverter page Datasheet PDF
The verdict

GW50K-ET-10 leads on the differences that matter

The largest is rated ac power: 5.00 kW apart. 4 of 12 comparable parameters are identical, with 20 more left out because at least one datasheet does not publish them.

See all 8 differences
How alike are they
4 of 12 comparable
parameters are identical
identical differs not published
01

What actually differs

8 of 12 parameters
Parameter GW50K-ET-10 WIT 55K-A-US L2 / WIT 55K-AU-US L2 Difference
Rated AC power 50.00 kW 55.00 kW 5.00 kW apart
Max AC power 55.00 kW 60.50 kW 5.50 kW apart
Weight 65.0 kg 120.0 kg 55.0 kg lighter
Weight per kW 1.3 kg/kW 2.2 kg/kW 0.9 kg/kW lighter
Max AC current 83.3 A 168.1 A 84.8 A apart
Ingress protection IP66 IP66/NEMA 4X IP66 vs IP66/NEMA 4X
Battery voltage 200-800 V 380~450V 200-800 V vs 380~450V
Dimensions 660x520x260 mm 820x1350x501 mm 660x520x260 mm vs 820x1350x501 mm
02

Full specification

Parameter GW50K-ET-10 WIT 55K-A-US L2 / WIT 55K-AU-US L2 Difference
AC output
Rated AC power 50.00 kW 55.00 kW 5.00 kW apart
Max AC power 55.00 kW 60.50 kW 5.50 kW apart
Grid connection 3-phase 3-phase Same
Nominal AC voltage 380 V - Not published by Growatt
Max AC current 83.3 A 168.1 A 84.8 A apart
PV input
Max PV power 75.00 kW - Not published by Growatt
DC/AC ratio 1.50 - Not published by Growatt
Max DC voltage 1000 V - Not published by Growatt
MPPT voltage range 165-850 V - Not published by Growatt
Start voltage 160 V - Not published by Growatt
MPP trackers - - Neither datasheet publishes this
Strings per tracker 2 - Not published by Growatt
Max input current per tracker 42.0 A - Not published by Growatt
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 380~450V 200-800 V vs 380~450V
Max charge current 100 A - Not published by Growatt
Backup power - - Neither datasheet publishes this
Physical
Weight 65.0 kg 120.0 kg -55.0 kg for GW50K-ET-10
Weight per kW 1.3 kg/kW 2.2 kg/kW -0.9 kg/kW for GW50K-ET-10
Dimensions 660x520x260 mm 820x1350x501 mm 660x520x260 mm vs 820x1350x501 mm
Ingress protection IP66 IP66/NEMA 4X IP66 vs IP66/NEMA 4X
Cooling forced-air - Not published by Growatt
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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Ginlong Solis
Growatt WIT 55K-A-US L2 / WIT 55K-AU-US L2 vs Ginlong Solis S6-EH3P60K-H(21A)
9 differences, the largest is rated ac power
04

Written summary

Every figure here is from the manufacturers' own datasheets - a dash means the value is not published, never an estimate.