Sigen C&I Inverter Range Now CEC Approved in Australia: What Commercial Solar Buyers Need to Know
Sigenergy’s Sigen C&I inverter range is now officially CEC approved in Australia.
That means it meets Australian standards and is ready to be installed on commercial and industrial solar projects right now. If you’ve been waiting for a battery-ready commercial inverter that’s compliant locally — this is it.
Designed for Real Commercial Loads
The Sigen C&I inverter range is built specifically for commercial and industrial systems — not residential hardware scaled up.
Key specs include:
- Power output: 50kW, 99.9kW, 110kW & 125kW models
- Maximum efficiency: Up to 98.8%
- Up to 10 MPPTs (model dependent)
- Maximum DC input voltage: 1100V
- IP66 rating for outdoor installation
- Full three-phase support
What that means for your business:
- Greater string flexibility for complex roof layouts
- High-efficiency power conversion
- Suitable for warehouses, factories, schools and large office buildings
- Outdoor-ready installation capability
Approved Models
The following models are now CEC approved and available for installation in Australia:
PV Inverters
- 50kW
- 99.9kW
- 110kW
- 125kW
HYA Hybrid Inverters (On-Grid Only)
- 50kW
- 99.9kW
- 110kW
- 125kW
HYB Hybrid Inverters (On-Grid & Off-Grid)
- 50kW
- 99.9kW
- 110kW
- 125kW
This gives commercial projects flexibility depending on whether you’re installing solar only, hybrid on-grid, or hybrid with off-grid capability.
DC-Coupled and Battery Ready
The Sigen C&I inverter uses a DC-coupled architecture, which allows solar energy to charge batteries directly.
Why that matters:
- Fewer energy conversion steps
- Higher system efficiency
- Simpler battery integration
- No major redesign required later
If you want to install solar now and integrate battery storage either today or in the future, the Sigen C&I inverter is designed to support both. With the SigenStack batteries now CEC approved, businesses have the flexibility to add storage when it suits their energy strategy and capital planning. For commercial projects managing investment carefully, that flexibility helps reduce long-term risk. If you’d like to understand the difference between AC and DC coupling more read our article on it here.
Battery Approval Status
The SigenStack12kWh batteries now CEC approved, which a fully integrated Sigenergy commercial battery solution is available now.
Integrated Smart Energy Management
The inverter includes a built-in Energy Management System (EMS).
This enables:
- Real-time system monitoring
- Solar self-consumption optimisation
- Load control
- Support for peak demand management
For sites exposed to demand charges or time-of-use tariffs, intelligent energy control can unlock additional savings beyond basic solar generation.
Built for Expansion
Energy usage evolves. If your business grows, adds EV charging, or changes operating hours, the Sigen C&I inverter supports:
- Parallel installation
- System expansion
- Future battery integration
Sigenergy’s focus is always on designing its hardware to be ready to adapt and evolve according to what you need.
What the CEC Approval Means
The recent CEC approval simply means the Sigen C&I inverter range is ready for compliant installation in Australia. That’s it, it’s available for commercial deployment today. They can be found on the CEC approved list of inverters here.
Talk to Lenergy About Your Commercial Solar Project
At Lenergy, we design commercial solar systems around your real-world load profile, tariff exposure and long-term plans — not just hardware specifications.
If you’re considering commercial solar or want to explore a battery-ready design using the Sigen C&I inverter range, speak with our team.
We’ll assess your site and recommend a system that makes sense financially and operationally.
