Switching to solar is more affordable than most Australia homeowners realise — and STCs (Small-scale Technology Certificates) are a big reason for that. These certificates act like a built-in discount that reduces the upfront cost of your solar system.
Here’s a simple guide to how STCs work and how they help Australia residents save.
What Are STCs?
STCs are part of the Australian Government’s Renewable Energy Target scheme.
When you install a solar system (under 100kW), you earn a number of STCs based on:
- Your system size
- Australia solar zone rating
- The number of years remaining until 2030 (when the scheme gradually phases out)
Each certificate has a market value, and this value is deducted from your installation cost.
How STCs Lower Your Solar Costs
Here’s what typically happens:
- Your solar installer calculates how many STCs your system is eligible for.
- The installer discounts that amount directly from your quote.
- The installer then trades the STCs on your behalf.
Result?
You pay thousands less upfront.
In Canberra, a typical 6.6kW system can receive a substantial STC rebate, significantly reducing total installation costs.
Why STCs Matter in the Australia
- Canberra sits in a favourable solar zone, meaning more certificate value.
- The scheme is still active through 2025.
- It applies whether you buy outright or through finance.
FAQs
Are STCs still available in 2025?
Yes, but they reduce slightly each year until 2030.
Do all installers handle STCs?
Reputable Australia installers typically process STCs automatically.
