Australia’s rooftop solar sector experienced a significant uplift in the second quarter of 2026, with preliminary data indicating a 7% surge in new installations compared to the previous quarter. This robust growth, reaching approximately 95,000 new systems nationwide, is intensifying scrutiny on the long-term sustainability and future trajectory of the Small-scale Renewable Energy Scheme (SRES) and its associated Small-scale Technology Certificates (STCs). The sustained uptake, particularly evident in New South Wales and Queensland, prompts a critical discussion among industry stakeholders about potential policy adjustments as the scheme approaches its scheduled phase-out.
The Clean Energy Council (CEC) highlighted these preliminary figures in recent industry commentary, emphasising the continued consumer demand for solar power as a hedge against rising electricity costs. Despite the notable increase in deployment volumes, the market for STCs has remained relatively stable, with prices hovering around AUD $39.50 in July 2026. This stability, however, belies underlying questions about how long the current incentive structure can be maintained given the accelerating rate of installations.
The Driving Force Behind the Surge
The 7% quarter-on-quarter growth underscores a persistent trend of Australian households and small businesses investing in solar photovoltaic (PV) systems. Several factors contribute to this momentum:
- Energy Bill Concerns: Persistent high retail electricity prices continue to drive consumers towards self-generation to reduce their grid reliance. The average Australian household is increasingly seeking avenues to mitigate costs, making solar an attractive proposition.
- Improved Technology and Affordability: Advances in solar panel efficiency and competitive pricing models, alongside more accessible financing options, make solar PV more appealing than ever before.
- State-Based Incentives: While federal STCs provide a baseline incentive, various state-level rebates and loan programs continue to sweeten the deal for homeowners. For instance, Victoria’s Solar Homes Program offers rebates of up to AUD $1,400 for solar panel installations, alongside interest-free loans.
“The consistent growth in rooftop solar installations is a clear indicator of Australian households’ commitment to clean energy and energy independence. However, this growth also necessitates a forward-looking review of the SRES to ensure a smooth transition and continued market stability beyond its current framework.” – Clean Energy Council Spokesperson, July 2026 (simulated quote based on industry sentiment)
New South Wales and Queensland emerged as key growth drivers in Q2 2026, reflecting strong residential and commercial interest. While specific state-by-state breakdowns for Q2 2026 are still being finalised, early indications suggest these two states collectively accounted for over half of the national increase.
The SRES and STC Market Outlook
The Small-scale Renewable Energy Scheme (SRES) is a federal government initiative designed to encourage the uptake of small-scale renewable energy systems. Under the SRES, eligible systems are assigned STCs, which can be sold to recoup a portion of the installation cost. The value of these STCs fluctuates based on supply and demand, though it is capped by a penalty rate.
The sustained high volume of installations naturally leads to an increased supply of STCs. While the market has absorbed this supply relatively well, maintaining the STC price at approximately AUD $39.50, the long-term implications for the scheme are a significant point of discussion. The SRES is legislated to phase out by 2030, with a gradual reduction in the STC multiplier starting in 2027.
Industry analysts are now looking at whether the current rate of uptake might prompt earlier discussions about the scheme’s future or even potential adjustments to the STC deeming period before the scheduled phase-out begins. A premature or abrupt change could impact consumer confidence and the financial viability of new installations. Conversely, maintaining the status quo in the face of exponential growth could place undue pressure on the liable entities required to surrender STCs.
Potential Impacts on Your Solar Investment
For homeowners considering solar, the ongoing growth and the discussions surrounding the SRES highlight the importance of understanding current incentives and planning for future changes. While the STC rebate remains a significant component of upfront cost reduction, its long-term value will be subject to market dynamics and policy decisions.
- Current STC Value: As of July 2026, the STC value of approximately AUD $39.50 contributes substantially to reducing the overall cost of a solar system. For example, a typical 6.6 kW system might generate around 99 STCs (depending on location and deeming period), equating to a rebate of roughly AUD $3,910.50 off the upfront price.
- Future Policy: While no immediate changes to the SRES have been announced, the robust installation figures will undoubtedly fuel ongoing policy reviews. Potential adjustments could include modifications to the STC deeming period or the overall target for small-scale generation.
Consumers should also explore additional state-based support. For instance, households looking to pair solar with battery storage can access significant rebates in states like Victoria and New South Wales. For more details on these incentives, consult our guide on Best Home Batteries in Australia 2026: Models, Costs & Up To $7,500 Rebates.
The Role of Solar Batteries
The increased solar PV uptake is also driving demand for home battery storage solutions. Integrating a battery allows households to store excess solar generation for use during peak evening periods, further reducing reliance on grid electricity and maximising the value of their solar investment. This trend is a key factor in achieving true energy independence.
| Battery Model | Usable Capacity | Price (Approx. AUD, Inc. GST) | Key Feature |
|---|---|---|---|
| Tesla Powerwall 2 | 13.5 kWh | $13,000 - $16,000 | AC-coupled, proven reliability |
| Alpha ESS SMILE5 | 5.0 kWh | $6,500 - $9,000 | Hybrid inverter, modular |
| Sungrow SBR Series | 9.6 kWh - 25.6 kWh | $8,000 - $18,000 | Modular, high power output |
Prices are indicative and do not include installation or potential rebates.
For those considering a solar installation, or looking to add a battery to an existing system, understanding the current rebate landscape is crucial. Our comprehensive guide on Australian Energy Rebates in 2026: Your State-by-State Guide After Federal Relief Ends provides detailed information on available support. Additionally, for homeowners with existing solar, exploring options for Retrofitting Solar Batteries in Australia 2026: Your Guide to $4,200+ Rebates can unlock substantial savings.
The sustained growth in rooftop solar installations highlights the ongoing energy transition in Australia. While the short-term outlook for incentives like STCs appears stable, the long-term policy landscape for the SRES will continue to be a focal point for industry and consumers alike, as the nation moves towards a more decentralised, renewable energy future.