About This Product

GW GW9.999K-ETA-G20 is a GoodWe ESA Series HV three-phase hybrid storage power module for solar systems that include high-voltage battery storage and back-up capability. It is part of GoodWe’s ESA all-in-one energy storage range, designed around a three-phase inverter, LFP battery system and integrated energy management. This model is the 9.999 kVA class unit in the ETA-G20 line and is intended for properties where solar generation, battery charging and essential-load back-up need to be managed together.

Who This Product Suits

GW GW9.999K-ETA-G20 suits GoodWe three-phase battery storage installations where the system is being designed as a complete ESA solution rather than a simple inverter swap. It is a practical fit for homes, rural properties and small commercial sites with three-phase supply, higher daytime consumption, or a need for battery-backed circuits. It should be selected by an installer as part of a correctly matched GoodWe ESA battery and monitoring setup.

Specifications Explained

GW GW9.999K-ETA-G20 is a three-phase hybrid storage inverter module with a 700-950 V high-voltage LFP battery interface and a nominal battery voltage of 750 V. The unit supports four MPPT inputs, with 21 A maximum input current per MPPT, which gives installers useful flexibility when arranging multiple solar strings. Rated output is 9.999 kVA to the grid, with 10 kVA nominal back-up apparent power. Maximum continuous battery charge and discharge current is listed at 13.4 A and 14.7 A respectively, and the product is commonly supplied with Wi-Fi communication and CT metering hardware for system monitoring and energy control.

Summary

GW GW9.999K-ETA-G20 is a GoodWe ESA Series HV three-phase hybrid storage power module for near-10 kVA solar and battery systems. Its main strengths are the high-voltage LFP battery interface, four-MPPT layout, three-phase operation and integrated back-up capability. For the right GoodWe ESA system design, it is a solid option where solar, battery storage and back-up loads need to work together cleanly.

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.