On-Grid
Deye undefined SUN-18K-G02

Deye • Deye Inverter SUN-18-25K-G02

SUN-18K-G02

Region:Spain
Region shows where the seller or factory is located. Most ship globally, and all listed suppliers should be able to ship to your current location.
21.6kW
Nominal AC Power
98.6%
Max Efficiency
400 x 520
Dimensions (mm)
Size Your System Find Installer

Ideal Use Case

The Deye SUN-18K-G02 is tailored for specific solar energy needs. This inverter is an excellent choice if you:

Operate a 21.6 kW commercial solar installation
Use three-phase grid connection
Need 2 independent MPPT trackers for different roof orientations
Want maximum energy harvest (98.6% peak efficiency)
Focus on grid-tied operation without battery storage
Operate in extremely cold climates

Don’t guess your solar setup — calculate it first!

Take our Solar Quiz to get a personalized recommendation for panels, inverter, battery capacity, and system size — before you spend money on the wrong setup.

Run Technical Sizing

AC Output Data

Nominal AC Power21.6 kW
Max Efficiency98.6 %
Euro Efficiency97.8 %
Max AC Current28.7 A
Rated AC Current26.1 A
Number of Feed-in Phases3
THD (Total Harmonic Distortion)3 %

DC Input Data

MPP Voltage Range200~850 V
Max DC Voltage1000 V
Min DC Voltage to Start250 V
Max DC Current44 A
Number of MPP Trackers2
DC Inputs4
ConnectorsMC4

Mechanical & Environmental Data

Dimensions (W x H x D)400 x 520 x 240 mm
Weight28.0 kg
Protection ClassIP65
Cooling MethodFan
DisplayLCD
InterfaceRS 232, RS 485, WLAN

Operating Conditions

Operating Temperature-25 ~ +65 ℃
Humidity0-100 %
Frequency47-62 Hz
Max Altitude2000 m
Transformer TypeTransformerless
Power Consumption (Night)1 W

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Product FAQ

What size solar array can the Deye SUN-18K-G02 handle?

The Deye SUN-18K-G02 has a nominal AC output of 21.6kW with a maximum efficiency of 98.6%. It is typically paired with a solar array of 26–28kW DC for optimal energy harvest.

Is the Deye SUN-18K-G02 a hybrid inverter?

The Deye SUN-18K-G02 is a on-grid inverter. To add battery storage, you would need a separate AC-coupled battery inverter or upgrade to a hybrid model.

Does the Deye SUN-18K-G02 have WiFi monitoring?

Most Deye inverters come with or support optional WiFi/Ethernet dongles. This allows you to track your solar production and battery status via a mobile app or web portal in real-time.

How many MPPT trackers does the Deye SUN-18K-G02 have?

This inverter features 2 independent MPPT trackers with a maximum DC input voltage of 1000V. Multiple trackers allow panels on different roof faces or orientations to operate independently for maximum yield.

Is the Deye SUN-18K-G02 a three-phase inverter?

Yes, this is a three-phase inverter. Three-phase inverters are ideal for larger homes, commercial systems, or regions with three-phase grid connections.