About This Product

The Sigenergy 100kW 3 Phase C&I Hybrid Solar Inverter with Backup (On & Off Grid) 8 MPPT IP66 is a commercial and industrial three-phase hybrid inverter designed for large solar and battery-ready installations. It is built for high-capacity PV systems and supports both on-grid operation and backup load connection where the system design allows. With 8 MPPT inputs, it gives installers flexibility across multiple roof sections, string orientations or array layouts.

This model is suited to C&I solar projects where the customer wants a strong solar inverter platform with the option to integrate energy storage and backup functionality as part of a Sigenergy system.

Who This Product Suits

The Sigenergy 100kW 3 Phase C&I Hybrid Solar Inverter with Backup (On & Off Grid) 8 MPPT IP66 suits commercial buildings, industrial sites, warehouses, farms, schools, retail centres and other larger three-phase electrical installations.

It is best suited to projects where high solar generation, battery integration and selected backup load support are part of the design. It is not a small residential inverter; it should be selected and installed by suitably qualified solar and electrical professionals as part of a properly engineered C&I system.

Specifications Explained

The Sigenergy 100kW 3 Phase C&I Hybrid Solar Inverter with Backup (On & Off Grid) 8 MPPT IP66 provides 100kW class three-phase output for larger commercial solar systems. The 8 MPPT design allows separate solar string groups to be managed independently, which can help when panels are installed across different roof faces or conditions.

The hybrid design means the inverter is intended for solar and battery system integration rather than PV-only operation. The backup capability allows selected loads to be supported through the correct system design, compatible Sigenergy equipment and compliant installation. The IP66 rating means the enclosure is designed for outdoor environments with strong protection against dust and water ingress.

Summary

The Sigenergy 100kW 3 Phase C&I Hybrid Solar Inverter with Backup (On & Off Grid) 8 MPPT IP66 is a practical C&I inverter choice for larger three-phase solar installations that need hybrid capability and backup-ready design. Its 8 MPPT layout gives good design flexibility, while the IP66 enclosure supports Australian outdoor installation conditions.

For best results, this inverter should be matched with compatible Sigenergy battery and control equipment and installed as part of a compliant commercial energy system.

Further Information From The Manufacturer

The Sigenergy 99.9kW 3 Phase C&I Hybrid Solar Inverter with Backup (Sigen PV 99.9M1-HYB-AU) is a high-capacity, commercial-grade hybrid inverter engineered for large-scale solar and energy storage projects. Designed for on-grid and off-grid operation, this inverter ensures seamless, reliable power supply during grid outages, making it ideal for commercial and utility-scale installations where uninterrupted energy is critical.

With 99.9kW of hybrid capacity and eight independent MPPTs, the inverter optimises energy generation across complex solar array layouts while supporting high-efficiency conversion. Its modular and scalable architecture allows system expansion from kilowatt to megawatt levels using the Sigenergy Gateway, providing flexibility for growing commercial operations.

The inverter is fully battery-ready, integrating with SigenStor modules, SigenStack controllers, and Sigenergy’s intelligent energy management ecosystem. Advanced monitoring via wireless meters and cloud-based apps allows real-time system performance tracking, helping installers and operators manage large-scale solar + storage systems efficiently.

Backup and Reliability: The Sigen PV 99.9M1-HYB-AU features fast backup switchover, ensuring zero-delay continuity during grid outages, while 150% overload handling supports smooth equipment startup under high-demand conditions. IP66 protection and smart cooling ensure safe, reliable operation even in harsh environments.

Key Differences Between SigenStack Inverters:

• SigenStack HYA Inverter: Grid-tied and battery-ready, but does not support off-grid operation or backup during grid outages.
• SigenStack HYB Inverter: Designed to provide off-grid and backup power, ensuring continuous operation during outages (final specifications to be confirmed by Sigenergy).

Key Features:

• 99.9kW hybrid capacity for large commercial and utility-scale solar systems
• Backup capability for uninterrupted power during grid outages
• High-efficiency conversion for maximum energy yield
• Eight MPPTs for flexible array design
• Modular and scalable – expand systems from kW to MW
• Seamless integration with SigenStor, SigenStack, and Sigenergy Gateway
• Advanced real-time monitoring via app and cloud

Specifications:

• Rated output power: 99.9kW
• Max PV input: compatible with large commercial arrays
• Battery compatibility: SigenStor modules
• Communication: WLAN, Ethernet, RS485, 4G/3G/2G via Sigenergy Gateway
• Operating environment: IP66-rated enclosure, smart cooling, -30°C to 60°C

Benefits:

• Continuous power supply for critical commercial operations
• Supports large-scale battery and PV integration
• Flexible modular expansion for future growth
• Easy system monitoring with cloud and app integration
• Reliable operation in harsh outdoor conditions
• Simplifies installation and reduces onsite labour with compact, lightweight design

The Sigen PV 99.9M1-HYB-AU Hybrid Solar Inverter with Backup is a robust, future-ready solution for commercial and utility-scale solar + storage systems, delivering high performance, resilience, and uninterrupted energy in a single installer-friendly unit.

Weights & Measurements Information

About Sigenergy

Sigenergy develops premium hybrid inverters and modular battery systems commonly used in residential and light-commercial energy-storage projects. Their products focus on safety, rapid installation, and high-power backup capability. With strong attention to software and user interface design, Sigenergy systems provide reliable day-to-day performance and detailed monitoring.