STC vs state rebates: what actually changes your quote

Three lines people collapse into “the rebate”

1. STCs — federal Small-scale Technology Certificates under the Small-scale Renewable Energy Scheme. Usually assigned to the installer. Count depends on size, zone rating, and deeming remaining toward 2030.
2. State or territory programs — extra solar or battery support with their own forms, dates, and approved-product lists. Not automatic. Not national.
3. Feed-in tariff — a retailer credit for exported kWh. Not a rebate. Compare on Energy Made Easy.

If a quote has one blob called “govt discount,” ask them to split it. The rebates guide is the parent page; this essay is the sorting hat.

What actually changes the number you pay

Installing later in the decade, all else equal, often means fewer STCs because deeming shortens. Waiting for “a bigger rebate” can be backwards. A household in Broome (a higher zone) still does not receive a cash sun bonus into a bank account; they create more certificates than an equivalent eligible system in Hobart, all else equal. We will not invent either dollar figure.

A state battery program can dwarf the STC line if you qualify this month. If you do not, it is zero. Victoria, New South Wales, South Australia, the ACT, and other jurisdictions have opened and closed programs. Check the agency page. See batteries.

A juicy FiT on a 12-month plan does not change the invoice; it changes the bill after commissioning — until the plan ends. Historic premium solar-bonus tariffs are closed to new customers. Do not use a 2011 newspaper figure as a 2026 expectation.

How to read the quote

Ask for gross, STC benefit, and net payable. Then ask whether any state line is included, and for the URL of the program. If the salesperson cannot show the Clean Energy Regulator method (size, zone, deeming) and cannot show the state page, they have a pitch, not a calculation.

Put two quotes in the same columns using the installer checklist and compare two quotes. The cost guide explains why we will not print a live Australian dollar-per-watt.

Method note

This essay does not reprint a live STC spot price. The Regulator and the market do that. We date the review. We point to resources. Last reviewed 25 September 2026.

Related: how STCs reduce the upfront price, when a battery makes sense.

A sorting example

A quote that shows “govt discount” as one blob might be hiding an STC assignment, a state battery form, and nothing else — or it might be hiding a made-up line. Ask for the split. Ask for the Regulator calculation (size, zone, deeming) and the state URL. Then put two quotes in the same columns.

A feed-in tariff still does not belong in that blob. It is a retailer credit after commissioning. See Energy Made Easy and how solar works.

Parent: rebates. Related: cost, batteries, resources.

Keep the layers honest

Write STC, state, and FiT on three lines. Then compare two quotes. Then verify on the Regulator and the agency page. That is the whole method. We will not print a spot price that would be wrong next week.

Carry this into the quote meeting

Split STC, state, and FiT. Ask for size, zone, and deeming. Ask for the agency URL. Then compare two quotes. No spot price here.

Parent hubs and siblings are linked above. Last reviewed 25 September 2026. General information only.