GW9900-ET-20

Perfect Quality

Great Warranty

Australian Owned

Exceptional Quality

The GoodWe GW9900-ET-20 (9.9kW) is a high-performance three-phase hybrid inverter designed for modern residential and small commercial solar systems. Combining solar generation, battery storage, and grid interaction into one intelligent platform, it enables efficient energy management and increased energy independence. With 9.9kW output, high-voltage battery compatibility, and up to 98.2% efficiency, the inverter delivers strong performance while minimising energy losses. Its multi-MPPT design allows flexible system configuration across complex rooftops, maximising solar energy production. The built-in UPS-level backup function (<10ms) ensures reliable power during outages, while smart monitoring via the SEMS platform provides full visibility and control of system performance. Engineered with a durable IP66-rated enclosure and supported by a 10-year warranty, the GW9900-ET-20 offers a reliable, efficient, and scalable solution for hybrid solar and battery systems.

Key Information

Product Code

GW9900-ET-20

Brand

GOODWE

Wattage

Product Warranty

10

Performance Warranty

Maximum Efficiency

Up to 98.2%

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Three-Phase Hybrid Inverter:
Integrates solar, battery storage, and grid supply into one intelligent system for efficient energy management.

High Power Output (9.9kW):
Ideal for large residential and small commercial systems with higher energy demand.

High Voltage Battery Compatibility (150–720V):
Supports high-voltage batteries for improved efficiency and reduced energy losses.

High Efficiency (Up to 98.2%):
Delivers excellent energy conversion performance with minimal losses.

Flexible Multi-MPPT Design:
Up to 3 MPPTs for flexible system design and optimised energy generation.

Backup Power Function (<10ms):
Provides fast switching backup (EPS) to maintain power during outages.

High PV Input Capacity:
Supports high DC input and system oversizing for better energy yield.

IP66 Durable Design:
Suitable for indoor and outdoor installation in harsh environments.

Smart Monitoring:
Remote monitoring and control via GoodWe SEMS platform.

10-Year Warranty:
Reliable long-term performance backed by manufacturer warranty.

‍

GoodWe delivers reliable, high-performance solar inverters and smart energy solutions for homeowners, businesses, and large-scale renewable projects seeking efficient power conversion, advanced system integration, and dependable long-term performance. Founded in 2010, GoodWe has grown into a globally recognised solar technology brand with products installed in more than 100 countries and a strong reputation for innovation, quality engineering, and scalable energy solutions.

Built on strong research and development capabilities and a global manufacturing network, GoodWe specialises in a comprehensive portfolio that includes grid-tied and hybrid solar inverters, energy storage systems, EV chargers, and smart energy management technologies. By combining reliable hardware, intelligent monitoring platforms, and flexible system design, GoodWe provides high-quality solar solutions designed to optimise energy generation, improve system efficiency, and support the transition to cleaner, more sustainable energy for residential, commercial, and utility-scale applications.

GW9900-ET-20

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