A standard 6.6 kW residential solar system in Australia typically costs between $4,500 and $9,000 after applying the federal STC rebate, depending on the brand of panels and inverter chosen. Larger systems (10 kW to 13 kW) range from $8,000 to $14,000, and adding battery storage such as a Tesla Powerwall adds approximately $12,000 to $18,000.
Overview
Australia has some of the highest solar irradiance in the world, making solar panels an excellent investment for both homes and businesses. A properly designed and installed solar system can dramatically reduce electricity bills and even generate income through feed-in tariffs. However, solar installation requires a CEC-accredited electrician to ensure the system is safe, efficient, and eligible for government rebates. From initial site assessment and system design through to grid connection and monitoring setup, a qualified solar electrician handles every step.
When you need this service
- ✓Installing a new rooftop solar system for your home or business
- ✓Upgrading an existing solar system with more panels or a new inverter
- ✓Adding battery storage (e.g. Tesla Powerwall, BYD, Sungrow) to an existing system
- ✓Troubleshooting solar production issues such as inverter faults or underperformance
- ✓Connecting a new solar system to the grid and setting up your feed-in tariff
How it works
- 1
Site Assessment & Design
A CEC-accredited electrician assesses your roof orientation, shading, energy usage, and electrical infrastructure to design an optimally sized system.
- 2
Quote & Rebate Paperwork
You receive a detailed quote showing system cost, estimated STC rebate, projected energy savings, and payback period. The electrician handles STC paperwork.
- 3
Installation
Panels, inverter, and wiring are installed — typically completed in one day for residential systems. A new solar meter or meter reconfiguration is arranged with your energy retailer.
- 4
Grid Connection & Monitoring
The system is connected to the grid, tested, and commissioned. You receive login details for online monitoring so you can track generation in real time.
How much does it cost?
Solar panel system costs in Australia vary by system size and component quality. A 6.6 kW system (the most popular residential size) costs $4,500 to $9,000 after the federal STC rebate. A 10 kW system costs $8,000 to $14,000. Premium panels (e.g. SunPower, REC) and hybrid inverters (e.g. Fronius, SMA) sit at the higher end but offer better performance and longer warranties. Battery storage adds $10,000 to $18,000 depending on capacity. The STC rebate is being phased down annually, so installing sooner locks in a higher rebate.
Australian regulations
Solar installations in Australia must be performed by a CEC (Clean Energy Council) accredited installer to qualify for the federal Small-scale Technology Certificate (STC) rebate. The system must comply with AS/NZS 5033 (Installation and safety requirements for PV arrays), AS 4777 (Grid connection of energy systems via inverters), and AS/NZS 3000 (Wiring Rules). Each state's energy distributor has specific connection and approval requirements. In some states, systems above 5 kW require distributor pre-approval before installation.