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WIT 18K-HU vs S6-EH1P18K03-NV-YD-L 10 of 23 identical Swap Change inverters

Growatt WIT 18K-HU vs Ginlong Solis S6-EH1P18K03-NV-YD-L

Growatt WIT 18K-HU
Growatt
WIT 18K-HU
18 kW 97.0 % euro Hybrid
Open inverter page Datasheet PDF
VS
Ginlong Solis S6-EH1P18K03-NV-YD-L
Ginlong Solis
S6-EH1P18K03-NV-YD-L
18 kW 97.0 % euro Hybrid
Open inverter page Datasheet PDF
The verdict

WIT 18K-HU leads on the differences that matter

The largest is max dc voltage: 450 V apart. 10 of 23 comparable parameters are identical, with 9 more left out because at least one datasheet does not publish them.

See all 13 differences
How alike are they
10 of 23 comparable
parameters are identical
identical differs not published
01

What actually differs

13 of 23 parameters
Parameter WIT 18K-HU S6-EH1P18K03-NV-YD-L Difference
Max DC voltage 1000 V 550 V 450 V apart
Max input current per tracker 40.0 A 20.0 A 20.0 A more headroom
Max PV power 36.00 kW 28.80 kW 7.20 kW apart
DC/AC ratio 2.00 1.60 0.40 more oversizing headroom
Noise 55 dB 65 dB 10 dB quieter
Grid connection 3-phase Single-phase 3-phase vs Single-phase
Nominal AC voltage 400 V 230 V 170 V apart
Start voltage 180 V 100 V 80 V earlier start
MPP trackers 2 3 1 tracker more
MPPT voltage range 150-850 V 80-520 V 150-850 V vs 80-520 V
Battery voltage 40-60V 40-60 V 40-60V vs 40-60 V
Weight 55.0 kg 55.5 kg 0.5 kg lighter
Dimensions 695x475x254 mm 845x459x313 mm 695x475x254 mm vs 845x459x313 mm
02

Full specification

Parameter WIT 18K-HU S6-EH1P18K03-NV-YD-L Difference
AC output
Rated AC power 18.00 kW 18.00 kW Same
Max AC power 18.00 kW 18.00 kW Same
Grid connection 3-phase Single-phase 3-phase vs Single-phase
Nominal AC voltage 400 V 230 V 170 V apart
Max AC current - 81.8 A Not published by Growatt
PV input
Max PV power 36.00 kW 28.80 kW 7.20 kW apart
DC/AC ratio 2.00 1.60 +0.40 for WIT 18K-HU
Max DC voltage 1000 V 550 V 450 V apart
MPPT voltage range 150-850 V 80-520 V 150-850 V vs 80-520 V
Start voltage 180 V 100 V -80 V for S6-EH1P18K03-NV-YD-L
MPP trackers 2 3 +1 trackers for S6-EH1P18K03-NV-YD-L
Strings per tracker 2 2 Same
Max input current per tracker 40.0 A 20.0 A +20.0 A for WIT 18K-HU
Efficiency
European efficiency 97.0 % 97.0 % Same
Max efficiency 97.6 % 97.6 % Same
CEC efficiency - - Neither datasheet publishes this
Battery
Battery input Yes Yes Same
Battery voltage 40-60V 40-60 V 40-60V vs 40-60 V
Max charge current 420 A - Not published by Ginlong Solis
Backup power - - Neither datasheet publishes this
Physical
Weight 55.0 kg 55.5 kg -0.5 kg for WIT 18K-HU
Weight per kW 3.1 kg/kW 3.1 kg/kW Same
Dimensions 695x475x254 mm 845x459x313 mm 695x475x254 mm vs 845x459x313 mm
Ingress protection IP66 IP66 Same
Cooling forced-air forced-air Same
Noise 55 dB 65 dB -10 dB for WIT 18K-HU
Max operating temperature 60 °C 60 °C Same
Connectivity and safety
Wi-Fi Yes - Not published by Ginlong Solis
Ethernet - - Neither datasheet publishes this
Arc fault protection - - Neither datasheet publishes this
Integrated DC switch Yes - Not published by Ginlong Solis
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.