There are two Government schemes available in Queensland for solar photovoltaic (PV) systems.
Small-scale Renewable Energy Scheme
This Australian Government scheme encourages the installation of solar water heaters, heat pumps, and small-scale solar PV (up to 100kW), wind and hydro systems by issuing buyers with Small-scale Technology Certificates (STCs).
STCs are an electronic form of money and are allocated to you when you install an eligible system. You get one certificate per megawatt hour of electricity calculated to be generated by your solar PV system up until 2030. That is, the number of STCs your system is eligible for will decrease each year.
STCs have to be created within 12 months of your system being installed.
There are two ways to cash-in your certificates:
You can create and sell your STCs yourself Wholesale buyers of electricity (mainly electricity retailers) purchase STCs to help them meet their renewable energy targets. The price they pay per certificate depends on market supply and demand at the time. STC trading is done online via the Renewable Energy Certificate (REC) Registry, and their REC calculator helps you estimate how many STCs your proposed solar PV system will earn.
You can assign your STCs to a registered agent Registered agents are usually solar retailers or traders who will pay you the market value for your STCs. Solar retailers usually offer an upfront discount off your solar PV system if you assign your STCs to them. This is the most popular option as it’s simpler and faster than trading your STCs yourself.
Under this Queensland Government scheme, electricity retailers pay eligible customers in regional Queensland a feed-in tariff (FiT) for their unused solar power that they export to the grid. That exported power translates to a credit on the customer’s electricity bill.
Effective from 31 August 2017, the maximum inverter capacity that qualifies for the regional FiT increased from 5 kW to 30 kW.