On-Grid
GoodWe undefined GW20K-ET

GoodWe • GoodWe ET Series 15-30kW

GW20K-ET

Region:Italy, Czech Republic
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.
20kW
Nominal AC Power
98%
Max Efficiency
520 x 660
Dimensions (mm)
Size Your System Find Installer

Ideal Use Case

The GoodWe GW20K-ET is tailored for specific solar energy needs. This inverter is an excellent choice if you:

Operate a 20.0 kW commercial solar installation
Use three-phase grid connection
Need 2 independent MPPT trackers for different roof orientations
Want maximum energy harvest (98.0% 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 Power20 kW
Max Efficiency98 %
Euro Efficiency97.5 %
Max AC Current33.3 A
Rated AC Current0 A
Number of Feed-in Phases3
THD (Total Harmonic Distortion)3 %

DC Input Data

MPP Voltage Range200~800 V
Max DC Voltage1000 V
Min DC Voltage to Start200 V
Max DC Current60 A
Number of MPP Trackers2
DC Inputs4

Mechanical & Environmental Data

Dimensions (W x H x D)520 x 660 x 220 mm
Weight48.0 kg
Protection ClassIP65
Cooling MethodFan
DisplayLED
InterfaceRS 485, WLAN

Operating Conditions

Operating Temperature-35 ~ +60 ℃
Humidity0-95 %
Frequency50, 60 Hz
Max Altitude4000 m
Power Consumption (Night)15 W

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Product FAQ

What size solar array can the GoodWe GW20K-ET handle?

The GoodWe GW20K-ET has a nominal AC output of 20kW with a maximum efficiency of 98%. It is typically paired with a solar array of 24–26kW DC for optimal energy harvest.

Is the GoodWe GW20K-ET a hybrid inverter?

The GoodWe GW20K-ET 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 GoodWe GW20K-ET have WiFi monitoring?

Most GoodWe 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 GoodWe GW20K-ET 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 GoodWe GW20K-ET 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.