2025 Solar Rebates and Incentives in Western Australia
february 20, 2026 • 7 min read • Finance
Installing solar panels in Western Australia has never been more affordable, thanks to a range of government incentives and rebates designed to encourage renewable energy adoption. This comprehensive guide explains all the financial benefits available to WA homeowners in 2025.
Small-scale Technology Certificates (STCs)
The federal government’s Small-scale Renewable Energy Scheme (SRES) provides upfront discounts on solar installations through STCs. Here’s what you need to know:
- What are STCs? Tradeable certificates representing the expected electricity generation of your solar system over its lifetime (up to 15 years)
- How much are they worth? The value fluctuates based on market demand, typically ranging from $35-$40 per certificate
- How do you claim them? Most installers handle STC claims and provide the discount upfront
Example: A 6.6kW system in Perth Zone 3 generates approximately 117 STCs, worth around $4,095 at current rates—applied as an instant discount on your installation.
Estimated STC Values by System Size
| System Size | Approx. STCs | Estimated Value* |
|---|---|---|
| 5kW | 89 | $3,115 |
| 6.6kW | 117 | $4,095 |
| 10kW | 177 | $6,195 |
| 13kW | 230 | $8,050 |
*Based on $35 per STC. Values may vary.
Important: STC values decrease each year until the scheme ends in 2030. Installing sooner means greater savings!
Feed-in Tariffs (FiT)
When your solar system produces more electricity than you use, the excess is exported to the grid. Your electricity retailer pays you for this exported energy through feed-in tariffs.
Current WA Feed-in Tariff Rates (2025)
| Retailer | Rate (per kWh) |
|---|---|
| Synergy | 2.25c – 10c |
| Horizon Power | 10c – 50c (varies by region) |
While feed-in tariffs have decreased over the years, they still provide valuable credits, especially for systems that export during peak sun hours.
Interest-Free Loans and Payment Plans
Several options make solar more accessible:
- Green loans: Many banks offer preferential rates for renewable energy investments
- Installer payment plans: Interest-free options spreading costs over 12-60 months
- CEFC financing: The Clean Energy Finance Corporation supports various solar loan products
Battery Storage Incentives
Adding battery storage maximises your solar investment. While federal battery incentives are limited, several programs can help:
- Virtual Power Plant (VPP) programs offering bill credits
- Some retailers offer battery-specific feed-in tariffs
- Potential GST exemptions for eligible battery systems
How to Maximise Your Savings
- Act quickly: STC values decrease annually
- Size your system appropriately: Larger systems generate more STCs
- Choose quality components: Higher efficiency means better long-term returns
- Compare quotes: Ensure your STC discount is being passed on fully
- Consider batteries: Maximise self-consumption as feed-in rates decline
Frequently Asked Questions
Do I have to pay tax on solar rebates?
No, STCs and feed-in tariff payments for residential systems are not considered taxable income for most homeowners.
Can I claim solar as a tax deduction?
For residential installations, no. However, businesses may claim depreciation and other deductions.
How long do these incentives last?
The STC scheme is legislated to continue until 2030, though the value decreases each year. Feed-in tariffs are set by individual retailers and may change.