STC’s Explained

STC’s (Small Technology Certificates) provide a financial incentive for individuals and businesses toward the purchase of solar systems and energy efficient devices such as heat pumps.

The larger the solar system (kW), the more financial incentive you will receive towards the purchase of your system. For example, a 10kW solar system is eligible for 152 STC’s worth approximately $5,500 (Zone three, eleven year deeming period, based on STC price at the time of writing).

The Clean Energy Regulator administers both the Large-scale Renewable Energy Target and the Small-scale Renewable Energy Scheme (installations less than 100kW). Your SunStak solar system will be eligible for the generation of STC’s, reducing the upfront cost of installing solar. We have already included the value of these STC’s in the purchase price. The number of STC’s you will be eligible for depends on the following equation.

Solar system size (kW) x Postcode Zone Rating x Deeming Period (years) = Number of STCs (rounded down).

Solar system STC zones. Credit to Solar Quotes

To calculate how many STC’s your solar system is eligible for, check the rec-registry calculator.

When does this scheme end?

The amount of certificates a system is illegible for reduces slightly each year as the calculation is based on the amount of energy generated between the time the system is installed and 2030, when the scheme ends.

Can I claim the STC incentive multiple times?

Yes, it is possible for you to install multiple solar systems on a single residence and claim the STC’s on all systems.

Note: If you have an existing Gross Metered system, the new solar system will be installed alongside the existing one, on a separate Net Meter. It will not impact you eligibility for claiming STC’s.