Topic
STC basics
15 pages, one place. Start with the quick answers, go deeper with the articles.
In depth 9
- How many STCs does a solar system get? Formula and tablesSTCs = kW x zone rating x deeming years, rounded down. Worked tables for 3 to 13 kW across all four zones for 2026 and 2027 installs, with dollar valu…
- Renewable energy certificates in Australia explainedSTCs, LGCs, VEECs, ESCs and PRCs: what each certificate is, who creates it, who buys it and why Australia runs five different ones. A plain-English ma…
- Small-scale technology certificates explainedHow the Small-scale Renewable Energy Scheme works: the legislation, the liable entities, the clearing house, the 2030 end date and what it means for i…
- What is an STC? The certificate behind the solar rebateAn STC is a tradable certificate worth one megawatt-hour of deemed renewable energy. Learn who creates it, who buys it and why it becomes the discount…
- STC deeming period 2027: what changes in JanuaryThe solar STC deeming period shortens every 1 January as the scheme winds down to 2030. See what that does to certificates per job and how to plan you…
- STC scheme explained for installers: duties and deadlinesWhat the STC scheme expects of installers: accreditation, evidence, the 12-month creation window, audits and clawback, plus the calendar dates that ch…
- STC trading explained: spot, clearing house and settlementHow the STC market is built: spot trading, the $40 clearing house, brokers and agents, rate locks and settlement terms. What a price quote actually pr…
- STC trading for solar installers: a business owner's guideHow a solar installer should run STC trading as a business function: cash flow, rate locks, agent versus registered person, volume tiers and a monthly…
- How do STCs work? Following the money on one jobFollow a single 6.6 kW solar job from quote to cash. See who holds the certificates, who pays whom, and where an installer's cash is tied up along the…
Quick answers 6
- What is an STC agent?An STC agent is a business registered with the Clean Energy Regulator that creates, manages and transfers STCs in the REC Registry on behalf of system…
- Is the STC scheme ending?Yes, but gradually. The Small-scale Renewable Energy Scheme ends on 31 December 2030. Until then the deeming period falls by a year each 1 January, so…
- What is an STC in solar panels?An STC, or small-scale technology certificate, is a tradable certificate created for each unit of expected renewable energy from a solar system. It is…
- What is the difference between STCs and LGCs?STCs are created upfront for small-scale systems of up to 100 kW, and from 1 October 2026 for solar up to 1 MW, based on expected output. LGCs are cre…
- What is an STC worth?At the time of writing an STC has been worth roughly $38 to $40, and the Clean Energy Regulator's clearing house ceiling is $40. A typical 6.6 kW home…
- Who buys STCs?Electricity retailers and other liable entities are the end buyers of STCs, because they must surrender them each year. Installers usually sell to a c…
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