WA Solar Rebate Guide — STCs and Financial Incentives
Understand solar credits, how to claim rebates, and maximise your return on solar investment
Solar rebates in Australia are available through Small-scale Technology Certificates (STCs) and tax deductions. This guide explains how STCs work, their current value, how to claim them, and what you need to know about CEC accreditation.
Understanding Solar Rebates in Australia
How Federal Solar Incentives Work
Australia's federal government encourages solar installation through STCs and tax benefits. These reduce your upfront installation cost significantly. Most installers factor these into their quotes, meaning your actual out-of-pocket cost is much lower than the system's retail price.
Small-scale Technology Certificates (STCs)
What Are STCs?
STCs are financial credits generated when you install solar panels, batteries, or heat pumps. For a 6kW solar system installed in Perth, you receive 6 STCs. These certificates have a market value and can be sold to reduce your installation cost.
How STCs Reduce Your Cost
Your installer can claim STCs immediately after installation and pass the value directly to you as a cost reduction. For example, if STCs are worth $40 each and you receive 6 STCs, you get $240 off the installation cost. Most installers quote the final price already including STC value.
Current STC Value (March 2026)
STC values fluctuate monthly based on supply and demand from energy retailers. As of March 2026, STCs typically trade between $35–$45 per certificate. Your installer can confirm the exact value for your system when you get a quote. Always ask for a breakdown showing the STC value included in your quote.
Tax Deduction Benefits
Non-Assessable Lump Sum
In addition to STCs, you may claim a non-assessable amount on your tax return. For residential solar, this typically ranges from $880–$4,200 depending on system size. You don't need to declare this income, and it effectively reduces your tax liability.
How to Claim the Tax Deduction
- Keep your solar installer's invoice and compliance certificate
- Claim the non-assessable lump sum on your next tax return
- Consult your accountant for specific advice on your situation
- The benefit flows through your tax return automatically
Installation Documentation
Your installer provides a Certificate of Installation and an Electrical Compliance Certificate. These documents prove your system meets Australian standards and are required for claiming rebates and tax benefits. Keep these permanently.
Clean Energy Council (CEC) Accreditation
Why CEC Accreditation Matters
Only installers certified by the Clean Energy Council (CEC) can legally claim STCs on your behalf. If your installer isn't CEC-accredited, you cannot claim solar credits. Always verify accreditation before signing a contract.
What to Check
- Is your installer listed on the CEC database? (cleanenergycouncil.org.au)
- Do they hold current CEC Accreditation?
- Are their electricians licensed in WA?
- Do they carry professional indemnity insurance?
Our CEC Accreditation
Response Electricians holds full CEC accreditation and WA electrical licensing. We can claim STCs and tax benefits on your behalf as part of your installation package. You receive the benefit of the entire rebate amount.
Solar System Cost Breakdown (6kW Example)
Typical Retail Price
- Panels: $2,000–$2,500
- Inverter: $1,500–$2,000
- Installation labour and materials: $1,500–$2,000
- Compliance and testing: $300–$500
- Subtotal (before rebates): $5,300–$7,000
After STCs and Tax Benefits
- STC value (6 × $40): -$240
- Tax deduction benefit: -$800–$1,200
- Final out-of-pocket cost: $4,300–$5,700
Actual costs vary based on system complexity, location, and current STC market value. Get quotes from multiple CEC-accredited installers to compare offers.
Battery Storage Incentives
WA Battery Programs
Western Australia has offered battery storage rebates in past years. Check with the government's energy programs website for current battery incentives. Battery storage systems also generate STCs, further reducing your cost.
Battery + Solar Combination
Pairing batteries with solar maximizes your rebate benefit. STCs apply to the entire system, and battery storage enables off-peak charging for additional savings. Combined systems cost more upfront but deliver the greatest long-term value.
How to Claim Your Solar Rebates
Step-by-Step Process
- Choose a CEC-accredited installer — verify accreditation before signing
- Get a detailed quote — ensuring STC value is clearly shown
- Sign the contract — confirming the installer will claim STCs on your behalf
- System installation — completed by licensed electricians
- Testing and compliance — installer verifies system meets standards
- STC claim — installer submits STCs to the Clean Energy Regulator
- Receive benefit — STC value is credited to you, usually before system activation
- Tax benefit — claim on your next tax return with your accountant
Timeline
Most CEC installers claim STCs immediately after installation is complete and tested. You typically receive the STC benefit within 2–4 weeks. Tax deductions are claimed at the end of the financial year.
Important Considerations
- Don't pay the full retail price if offers aren't being applied
- Verify CEC accreditation on the official database
- Get the STC value in writing as part of your quote
- Keep all installation documents for warranty and tax purposes
- Confirm your installer handles STC claims (not your responsibility)
- Compare multiple quotes—rebate amounts vary between installers
Frequently Asked Questions
STCs are financial credits for solar installation. A 6kW system generates 6 certificates worth $35–$45 each. Your installer claims these and the value reduces your upfront cost. You don't have to do anything—it's handled as part of installation.
As of March 2026, STCs typically trade between $35–$45 per certificate. Values fluctuate monthly based on market demand. Your installer can confirm the exact value for your system when quoting. Always get this value in writing.
Your installer claims STCs on your behalf during installation—you don't do anything. You may also claim a non-assessable tax deduction ($880–$4,200). Consult your accountant about your specific tax situation.
Yes. Only CEC-accredited installers can legally claim STCs. Always verify your installer is listed on the Clean Energy Council database before signing. If they're not accredited, you cannot claim rebates.
Get Solar Installed With Maximum Rebates in Perth
Response Electricians is CEC-accredited and handles all STCs and tax benefits for you. Get a transparent quote showing your final cost after all rebates.