Australia’s commercial sector is driving a significant surge in solar installations, with the Clean Energy Regulator (CER) reporting an 18% increase in Small-scale Technology Certificate (STC) creation for commercial systems during the second quarter of 2026. This data, released on August 7, 2026, indicates robust business confidence in solar investment and provides a stable outlook for the STC market, directly impacting the upfront cost of solar for Australian enterprises.

The CER’s latest quarterly report highlights a substantial uptick in STCs generated from systems larger than 100 kW, which primarily represent commercial and industrial installations. This growth contrasts with a more modest increase in residential STC creation, underscoring a strategic shift in solar adoption across the country. For businesses, this trend means continued access to valuable upfront discounts, making solar power an increasingly attractive proposition for managing operational costs.

Understanding Small-scale Technology Certificates (STCs)

STCs are electronic certificates generated under the Small-scale Renewable Energy Scheme (SRES) for eligible solar photovoltaic (PV) systems, solar water heaters, and heat pumps. Each STC represents one megawatt-hour (MWh) of renewable electricity generated or displaced over the system’s deemed lifespan. These certificates can be sold to recoup a portion of the installation cost, effectively acting as a government rebate. The value of an STC fluctuates based on market demand and supply, but the CER’s STC Clearing House provides a safety net, buying and selling STCs at a fixed price of AUD $40.00.

The recent report confirms that the STC market remains robust, with the clearing house price holding firm at this AUD $40.00 mark. This stability is crucial for businesses planning solar investments, as it provides certainty regarding the value of their upfront incentive.

“The strong performance in commercial STC creation for Q2 2026 demonstrates the growing commitment of Australian businesses to decarbonise their operations and reduce energy expenditure,” stated a CER spokesperson on the report’s release. “This sustained demand helps maintain a healthy STC market, ensuring that the financial incentives for solar adoption remain predictable and effective.”

Commercial Solar Driving Growth

During Q2 2026 (April to June), the CER recorded approximately 4.2 million STCs created specifically from commercial solar installations, an 18% increase compared to Q1 2026. This figure contributes significantly to the total 10.5 million STCs created across all categories in the quarter. The average commercial solar system size eligible for STCs has also seen a slight increase, reflecting larger-scale deployments by businesses.

This growth is particularly evident in states with high commercial activity and strong solar resources. Queensland and New South Wales led the nation in commercial STC creation, followed closely by Victoria. Businesses in these regions are increasingly leveraging solar to mitigate rising electricity costs and meet corporate sustainability targets. For example, a typical 100 kW commercial solar system could generate approximately 130 STCs in Sydney, translating to an upfront saving of around AUD $5,200 at the current clearing house price. Larger systems, such as a 250 kW installation, could see savings of up to AUD $13,000.

Impact on Businesses and Future Outlook

The sustained growth in commercial solar installations, supported by stable STC values, offers several benefits for Australian businesses:

  • Reduced Operating Costs: Generating electricity on-site significantly lowers reliance on grid power, leading to substantial savings on electricity bills. Businesses can further optimise these savings by carefully choosing Your Australian Energy Provider in 2026: A Definitive Guide that offers favourable feed-in tariffs or virtual power plant opportunities.
  • Enhanced Sustainability Credentials: Investing in solar improves a company’s environmental profile, appealing to increasingly eco-conscious consumers and investors.
  • Energy Independence: On-site generation provides a degree of insulation from volatile wholesale electricity prices.
  • Predictable Incentives: The stable STC market provides clarity on upfront cost reductions, allowing for more accurate financial planning.

While the STC scheme is set to phase out by 2030, the current stability and strong demand indicate that significant incentives will remain available for businesses considering solar in the coming years. This makes the present an opportune time for commercial entities to evaluate their energy needs and explore solar solutions. Beyond STCs, businesses may also be eligible for various state-specific Australian Energy Rebates in 2026: Your State-by-State Guide After Federal Relief Ends that can further reduce installation costs.

The CER’s Q2 2026 report paints a clear picture: Australian businesses are increasingly embracing solar power, driven by economic benefits and environmental responsibility. The robust STC market is playing a critical role in facilitating this transition, providing predictable financial support for commercial solar investments.