Small-scale technology certificates (STCs) function like a discount that’s applied to your solar quote, allowing you to install solar systems and batteries for cheaper.

The discount occurs upfront—this is different from a rebate where you receive cash back later.

STC entitlements are available through the federal Small-scale Renewable Energy Scheme (SRES), enabling homeowners to reduce the installation costs on approved renewable energy systems such as rooftop solar systems and batteries.

If you’re eligible for STCs, the amount you can save will depend on the number of STCs you can claim—and the number you can claim will be influenced by a variety of factors.

These factors include but aren’t limited to:

• Your solar system or battery needs to be installed by an accredited solar installer (which we are!).
• The size of your system, limited to systems up to 1 MW as of 1 October 2026—the previous limit was 100 Kw. Applications for mid-scale systems between 100 kW and 1 MW are expected to open soon in November 2026. More information on mid-scale solar and available schemes can be found here.
• The geographical location.
• The estimated electricity your system will generate.

Importantly, the value of each STC is variable as they can change from one week to the next.

But don’t worry! At BJ Energy, we can apply for STCs on your behalf and include any discount you’ll receive in the quote for your solar installation.

Interested in a solar system or battery but aren’t sure of your STC entitlements? Contact our professional Adelaide solar experts on 0423 366 428, and we’ll guide you through the process.