STC Calculator (Solar Rebate Calculator)
Find out how much you could save with the Australian Government solar rebate using our easy-to-use STC calculator. At ND Solar Group, we help homeowners and businesses across Sydney understand exactly how many Small-scale Technology Certificates (STCs) their system may be eligible for and what that means in real dollar savings.
The federal solar rebate works by reducing the upfront cost of your solar system. The more STCs your system is entitled to, the larger the discount applied at installation. Our calculator gives you a fast and accurate estimate based on your location, system size, and installation year.
How the Solar Rebate Works
When you install a solar system, you may be eligible to receive STCs under the Small-scale Renewable Energy Scheme. These certificates are created based on:
The size of your solar system in kilowatts
Your postcode zone and solar output rating
The year the system is installed
The remaining deeming period until 2030
Each STC has a market value. These certificates are typically assigned to your installer in exchange for an upfront discount on your system, reducing the amount you pay out of pocket.
As the deeming period reduces each year, the number of STCs available also decreases. This means installing sooner generally results in a higher rebate.
Get an Accurate Solar Quote, Not Just an Estimate
While the calculator provides a strong guide, final STC numbers can only be confirmed once your system design, panel orientation, and network approvals are completed.
That is where ND Solar Group comes in.
We provide:
Fully engineered system designs
Accurate STC creation and paperwork
Transparent rebate application with no hidden margins
In-house installation by licensed solar electricians
Systems designed for maximum performance and long-term savings
You can explore our full Solar Installation services, including Residential Solar Installation, Commercial Solar Installation, Solar Panels, Solar Inverters, Solar Batteries, and EV Charger Installation to see how we design complete, future-ready energy systems.