In Australia, a ray of sunlight is powering a green revolution, thanks to the Small-scale Renewable Energy Scheme (SRES).
Introduced in January 2011, the RET was split into two components, each with a unique purpose:
Large-scale Renewable Energy Target (LRET)

Small-scale Renewable Energy Scheme (SRES)
Small-scale Renewable Energy Scheme (SRES): This initiative, on the other hand, offers a financial boost for individuals, small businesses, and community groups to adopt small-scale renewable energy systems. This includes solar panels, wind turbines, hydro systems, solar water heaters, and air source heat pumps.

Small-scale Renewable Energy Scheme (SRES) Explained
The SRES operates by incentivizing the installation of small-scale renewable energy systems, particularly solar PV systems of up to 100 kW. It achieves this through the issuing of Small-scale Technology Certificates (STCs).

Financial incentives that arrive with Small-Scale Renewable Energy Schemes in Australia
Small-scale Technology Certificates (STCs)
- When you install an eligible small-scale renewable energy system, such as solar panels, wind turbines, hydro systems, solar water heaters, or air source heat pumps, STCs are created based on the expected output of the system.
- These STCs act as tradable certificates and represent a certain amount of renewable energy generated by the system over its expected lifetime (usually 15 years).
- One STC is equivalent to one megawatt-hour (MWh) of renewable energy.
Tradable Certificates:
- STCs can be traded on the open market through the REC Registry. It is an online trading platform managed by the Clean Energy Regulator.
- The tradability of STCs allows individuals, businesses, and installers to buy, sell, or trade them according to market demand.
Upfront Discount
- The creation of STCs provides an upfront financial benefit for those installing small-scale renewable energy systems.
- The value of these certificates is often factored into the overall cost of the system, effectively reducing the upfront expense for the system owner.
Location-Based Rewards
- The number of STCs a system generates is influenced by its location.
- Systems installed in sunnier locations are eligible for a larger number of STCs and reflects the expectation of higher energy production.
Financial Flexibility
- The tradable nature of STCs means that their value can fluctuate based on supply and demand in the market.
- When demand for STCs is high, their value increases, providing additional financial benefits for those selling or trading them.
Installer Responsibility
- The installers take on the responsibility of creating and managing the STCs.
- This includes estimating the system's expected output, creating the certificates, and handling the associated risks of holding or selling them.