About This Product

GW GW25K-ETA-G20 is a 25 kW three-phase hybrid inverter/power module from GoodWe’s ESA Series energy storage platform. It is designed to manage solar PV generation, high-voltage battery storage, grid connection and backup power within a compatible GoodWe energy storage system. The inverter provides four MPPT trackers and supports up to 50 kW of PV input, allowing larger and more complex solar arrays to be connected. Its 25 kW rating makes it suited to higher-demand residential and small commercial three-phase installations where substantial solar and battery capacity is required.

Who This Product Suits

The GoodWe GW25K-ETA-G20 suits large three-phase homes, rural properties and small commercial sites requiring a high-capacity hybrid solar and battery system. It is particularly useful where several roof orientations or larger PV arrays need to be accommodated, as GoodWe provides four independent MPPTs on this model. The inverter is also suited to systems where backup power is an important design requirement, with a 25 kVA nominal backup output and fast transfer between grid-connected and backup operation. Battery and system compatibility should always be confirmed as part of the system design.

Specifications Explained

The GW25K-ETA-G20 has a rated three-phase AC output of 25 kW and accepts up to 50 kW of PV input. Its four MPPTs have maximum input currents of 21 A, 21 A, 42 A and 42 A, with the two higher-current trackers supporting two strings each. The high-voltage battery input operates from 700 to 950 V, with maximum continuous charging and discharging currents of 33.3 A and 36.7 A respectively; maximum charging power is 25 kW and maximum discharging power is 27.5 kW. Nominal backup apparent power is 25 kVA, with an on/off-grid switching time of less than 4 ms. Maximum conversion efficiency is specified at 98.2%, and the inverter is IP66 rated for protection against dust and water ingress.

Summary

The GW GW25K-ETA-G20 is a high-capacity GoodWe three-phase hybrid inverter designed for solar, battery storage and backup applications. Its 25 kW AC rating, four MPPTs, 50 kW maximum PV input and 700-950 V battery operating range make it suitable for substantial residential and small commercial energy systems. GoodWe has also provided a 25 kVA nominal backup output and sub-4 ms transfer capability for installations where continuity of supply is part of the system design.

Weights & Measurements

About GoodWe

GoodWe is a widely used inverter manufacturer with a large presence in Australia. Their portfolio covers single-phase, three-phase, and hybrid inverters, offering stable performance and competitive pricing. GoodWe systems are known for straightforward commissioning and solid reliability across a range of residential and commercial applications.