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SUN-18K-G02 vs SE17.3KUS 5 of 19 identical Swap Change inverters

Deye SUN-18K-G02 vs SolarEdge SE17.3KUS

Deye
SUN-18K-G02
18 kW 97.8 % euro Grid-tie
Open inverter page Datasheet PDF
VS
SolarEdge SE17.3KUS
SolarEdge
SE17.3KUS
17.3 kW Grid-tie
Open inverter page Datasheet PDF
The verdict

SUN-18K-G02 leads on the differences that matter

The largest is rated ac power: 0.70 kW apart. 5 of 19 comparable parameters are identical, with 13 more left out because at least one datasheet does not publish them.

See all 14 differences
How alike are they
5 of 19 comparable
parameters are identical
identical differs not published
01

What actually differs

14 of 19 parameters
Parameter SUN-18K-G02 SE17.3KUS Difference
Rated AC power 18.00 kW 17.30 kW 0.70 kW apart
Max DC voltage 1000 V 600 V 400 V apart
Max AC power 19.80 kW 17.30 kW 2.50 kW apart
Max PV power 21.60 kW 30.27 kW 8.67 kW apart
DC/AC ratio 1.20 1.75 0.55 more oversizing headroom
Weight 28.0 kg 35.5 kg 7.5 kg lighter
Noise 45 dB 62 dB 17 dB quieter
Weight per kW 1.6 kg/kW 2.1 kg/kW 0.5 kg/kW lighter
Nominal AC voltage 400 V 208 V 192 V apart
Max AC current 28.7 A 48.2 A 19.6 A apart
Max operating temperature 65 °C 60 °C 5 °C more heat tolerant
Ingress protection IP65 NEMA 3R IP65 vs NEMA 3R
MPPT voltage range 200-850 V 370-600 V 200-850 V vs 370-600 V
Dimensions 520x400x240 mm 808x317x300 mm 520x400x240 mm vs 808x317x300 mm
02

Full specification

Parameter SUN-18K-G02 SE17.3KUS Difference
AC output
Rated AC power 18.00 kW 17.30 kW 0.70 kW apart
Max AC power 19.80 kW 17.30 kW 2.50 kW apart
Grid connection 3-phase 3-phase Same
Nominal AC voltage 400 V 208 V 192 V apart
Max AC current 28.7 A 48.2 A 19.6 A apart
PV input
Max PV power 21.60 kW 30.27 kW 8.67 kW apart
DC/AC ratio 1.20 1.75 +0.55 for SE17.3KUS
Max DC voltage 1000 V 600 V 400 V apart
MPPT voltage range 200-850 V 370-600 V 200-850 V vs 370-600 V
Start voltage 250 V - Not published by SolarEdge
MPP trackers 2 - Not published by SolarEdge
Strings per tracker - - Neither datasheet publishes this
Max input current per tracker - - Neither datasheet publishes this
Efficiency
European efficiency 97.8 % - Not published by SolarEdge
Max efficiency 98.6 % - Not published by SolarEdge
CEC efficiency - 97.5 % Not published by Deye
Battery
Battery input - - Neither datasheet publishes this
Battery voltage - - Neither datasheet publishes this
Max charge current - - Neither datasheet publishes this
Backup power - - Neither datasheet publishes this
Physical
Weight 28.0 kg 35.5 kg -7.5 kg for SUN-18K-G02
Weight per kW 1.6 kg/kW 2.1 kg/kW -0.5 kg/kW for SUN-18K-G02
Dimensions 520x400x240 mm 808x317x300 mm 520x400x240 mm vs 808x317x300 mm
Ingress protection IP65 NEMA 3R IP65 vs NEMA 3R
Cooling forced-air forced-air Same
Noise 45 dB 62 dB -17 dB for SUN-18K-G02
Max operating temperature 65 °C 60 °C +5 °C for SUN-18K-G02
Connectivity and safety
Wi-Fi Yes Yes Same
Ethernet Yes Yes Same
Arc fault protection - Yes Not published by Deye
Integrated DC switch Yes Yes Same
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.