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SE66.6K (for 220V/230V line-to-line grids) vs Solis-40K 5 of 15 identical Swap Change inverters

SolarEdge SE66.6K (for 220V/230V line-to-line grids) vs Solis-40K

SolarEdge SE66.6K (for 220V/230V line-to-line grids)
SolarEdge
SE66.6K (for 220V/230V line-to-line grids)
38.45 kW 98.0 % euro Grid-tie
Open inverter page Datasheet PDF
VS
Solis-40K
Ginlong Solis
Solis-40K
40 kW 98.4 % euro Grid-tie
Open inverter page Datasheet PDF
The verdict

Solis-40K leads on the differences that matter

The largest is rated ac power: 1.55 kW apart. 5 of 15 comparable parameters are identical, with 17 more left out because at least one datasheet does not publish them.

See all 10 differences
How alike are they
5 of 15 comparable
parameters are identical
identical differs not published
01

What actually differs

10 of 15 parameters
Parameter SE66.6K (for 220V/230V line-to-line grids) Solis-40K Difference
Rated AC power 38.45 kW 40.00 kW 1.55 kW apart
Max DC voltage 600 V 1100 V 500 V apart
European efficiency 98.0 % 98.4 % 0.4 pp more efficient
Max AC power 38.45 kW 44.00 kW 5.55 kW apart
Max PV power 67.28 kW 48.00 kW 19.28 kW apart
DC/AC ratio 1.75 1.20 0.55 more oversizing headroom
Max efficiency 98.3 % 98.8 % 0.5 pp more efficient
Nominal AC voltage 230 V 400 V 170 V apart
Max AC current 96.5 A 66.9 A 29.6 A apart
MPPT voltage range 370-600 V 200-1000 V 370-600 V vs 200-1000 V
02

Full specification

Parameter SE66.6K (for 220V/230V line-to-line grids) Solis-40K Difference
AC output
Rated AC power 38.45 kW 40.00 kW 1.55 kW apart
Max AC power 38.45 kW 44.00 kW 5.55 kW apart
Grid connection 3-phase 3-phase Same
Nominal AC voltage 230 V 400 V 170 V apart
Max AC current 96.5 A 66.9 A 29.6 A apart
PV input
Max PV power 67.28 kW 48.00 kW 19.28 kW apart
DC/AC ratio 1.75 1.20 +0.55 for SE66.6K (for 220V/230V line-to-line grids)
Max DC voltage 600 V 1100 V 500 V apart
MPPT voltage range 370-600 V 200-1000 V 370-600 V vs 200-1000 V
Start voltage - 200 V Not published by SolarEdge
MPP trackers - 4 Not published by SolarEdge
Strings per tracker - - Neither datasheet publishes this
Max input current per tracker - - Neither datasheet publishes this
Efficiency
European efficiency 98.0 % 98.4 % +0.4 pp for Solis-40K
Max efficiency 98.3 % 98.8 % +0.5 pp for Solis-40K
CEC efficiency - - Neither datasheet publishes this
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 - 61.0 kg Not published by SolarEdge
Weight per kW - 1.5 kg/kW Not published by SolarEdge
Dimensions - 700x630x357 mm Not published by SolarEdge
Ingress protection IP65 IP65 Same
Cooling forced-air - Not published by Ginlong Solis
Noise 67 dB - Not published by Ginlong Solis
Max operating temperature 60 °C 60 °C Same
Connectivity and safety
Wi-Fi Yes Yes Same
Ethernet Yes - Not published by Ginlong Solis
Arc fault protection Yes - Not published by Ginlong Solis
Integrated DC switch Yes Yes Same
Warranty
Warranty - - Neither datasheet publishes this
03

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Solis-40K vs Sungrow SG40CX
5 differences, the largest is weight
04

Written summary

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