About This Product

The GW GW12K-ETA-G20 is a 12 kW three-phase hybrid inverter from GoodWe’s ESA Series 5-30 kW high-voltage energy storage platform. It is designed to manage solar generation, compatible high-voltage battery storage, grid connection and backup power as part of a GoodWe ESA energy storage system. The inverter supports a 700-950 V battery operating range and provides 12 kVA rated apparent power to both the grid and backup output. Its four MPPT inputs provide flexibility when designing larger residential or small commercial solar arrays with different roof orientations or string configurations.

Who This Product Suits

The GW GW12K-ETA-G20 suits larger three-phase residential installations and smaller commercial systems requiring solar, battery storage and backup capability in one GoodWe platform. It is particularly suited to sites with higher daytime loads, multiple solar array orientations or a requirement for substantial three-phase backup capacity. Installers can use its four MPPTs to separate different PV strings while integrating a compatible high-voltage GoodWe battery system. Correct battery configuration, protection equipment and grid approval should be confirmed for each installation.

Specifications Explained

The GW GW12K-ETA-G20 has a maximum apparent power output to the grid of 12 kVA and a nominal backup apparent power rating of 12 kVA. Its high-voltage battery input operates from 700 to 950 V, with maximum continuous charging and discharging currents of 16.1 A and 17.7 A respectively. Four independent MPPT inputs are provided, each rated for up to 21 A input current, allowing greater flexibility across separate PV strings. Within the ESA platform, GoodWe specifies support for up to 200% DC oversizing, backup switching in less than 4 ms and an IP66-rated enclosure for suitable indoor or outdoor installation conditions.

Summary

The GW GW12K-ETA-G20 is a GoodWe three-phase 12 kW hybrid inverter intended for higher-capacity solar and battery installations using the ESA Series platform. Its four MPPTs, 700-950 V battery range and 12 kVA backup capability make it suitable for systems where flexible PV design and meaningful backup power are required. It is best matched with correctly specified GoodWe-compatible high-voltage batteries and should be installed and commissioned as part of a properly engineered three-phase energy storage system.

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.