Australia’s rooftop solar market is facing a significant shift as the Clean Energy Council (CEC) implements stricter safety standards for photovoltaic (PV) modules, effective May 1, 2026. The CEC announced on April 28, 2026, that all new applications for solar panel models seeking inclusion on its approved list must now comply with the updated IEC 61730:2023 safety standard.
This regulatory update is critical for Australian homeowners and installers, as only CEC-approved modules are eligible to generate Small-scale Technology Certificates (STCs). These certificates are a cornerstone of Australia’s federal incentive scheme, providing a point-of-sale discount that significantly reduces the upfront cost of residential solar installations.
The New Standard: IEC 61730:2023
The IEC 61730:2023 standard represents the latest iteration of international safety requirements for PV modules. Previously, manufacturers had the option to apply under either the 2016 or 2023 versions of the standard. However, from May 1, 2026, this flexibility ends, making the 2023 version mandatory for all new panel applications.
It is important to note that existing solar panel models already listed under the older IEC 61730:2016 standard will remain approved until their individual expiry dates. Furthermore, any existing stock of these panels held by retailers and installers is unaffected by the change, allowing for their continued installation and STC eligibility.
“The 1 May deadline is the latest in a series of certification changes reshaping which panels can qualify for Australia’s rooftop incentive scheme.”
This move by the CEC underscores a continuous effort to enhance the safety and reliability of solar installations across Australia. It follows a similar transition in October 2024, which required new module applications to comply with IEC 61215:2021, prompting retailers to clear older-certified stock.
Impact on Consumers and Installers
For solar panel manufacturers, the immediate impact is the need to ensure all new models submitted for CEC approval meet the rigorous IEC 61730:2023 standard. This could involve additional testing and certification processes.
Solar installers must be diligent in sourcing panels that are on the CEC’s approved list, particularly for new systems or upgrades that rely on STCs. While existing stock is exempt, future procurement will be limited to panels certified under the newer standard. Choosing a reputable installer who is up-to-date with these regulations is paramount for homeowners. For guidance on selecting a qualified professional, refer to our guide on How to Choose a Solar Installer in Australia 2026: Accreditation, Warranties & Avoiding Scams.
For Australian homeowners, the primary implication relates to the availability and cost of STC-eligible solar panels. While the current changes do not invalidate existing installations or stock, they shape the future landscape of available products. The STC scheme is crucial, as it typically reduces the upfront cost of a 6.6kW solar system by approximately AUD $1,500 to $2,000, depending on the installation zone and specific timing. For a larger 10kW system, the discount can be around AUD $3,000.
Solar System Costs in 2026 (After STC Rebates)
| System Size | Typical Price Range (AUD) | Best For |
|---|---|---|
| 3kW | $3,500 – $5,000 | Small units or couples |
| 5kW | $4,500 – $6,500 | Small families |
| 6.6kW | $5,000 – $8,500 | Standard 3-4 bedroom home |
| 8kW | $7,500 – $10,500 | Large families with high use |
| 10kW | $9,500 – $13,000 | Homes with pools or EVs |
Note: These prices are approximate and vary based on brand, location, and specific components.
The average price per watt for residential solar panels in Australia in 2026 ranges from AUD $0.88 to $0.95, fully installed, including GST and the STC rebate. Maintaining STC eligibility through CEC-approved panels is therefore vital for keeping solar power accessible and affordable.
Broader Context: A Booming Market
The introduction of these stricter standards comes at a time when Australia’s rooftop solar market continues its robust growth. In March 2026 alone, 341 MW of small-scale PV was registered, indicating sustained consumer demand and industry activity.
This continuous evolution of standards, while posing temporary adjustments for the industry, ultimately aims to safeguard consumer investments and ensure the long-term integrity and performance of Australia’s burgeoning solar energy sector. As energy bills continue to be a concern for many households, maximising the efficiency and longevity of solar installations remains a key priority. For strategies on managing household energy costs, consider exploring our article on Australia’s Top Energy-Efficient Home Upgrades 2026: Maximise ROI as Electricity Bills Soar This Winter.
The Clean Energy Regulator (CER), which uses the CEC’s approved modules list for STC claims, works in tandem to ensure compliance and consumer protection. This latest update serves as a reminder for all stakeholders to stay informed about regulatory changes that underpin the financial incentives driving Australia’s renewable energy transition.