Quick answer: The "federal solar rebate" is the Small-scale Renewable Energy Scheme, delivered through Small-scale Technology Certificates (STCs) — a point-of-sale discount worth roughly $2,000–$2,500 on a typical 6.6kW Sydney system in 2026.
Updated August 2026 for NSW residents.
The "federal solar rebate" almost everyone refers to is actually the Small-scale Renewable Energy Scheme, delivered through Small-scale Technology Certificates, or STCs. It's the single biggest reason solar in Australia is cheaper than most people assume — and also the most frequently misexplained part of any solar quote. Here's exactly how it works in 2026.
An STC is a tradeable certificate created when you install an eligible small-scale renewable energy system, like rooftop solar panels. The number of certificates your system generates is based on its size, your location's solar resource ("zone rating"), and how many years remain until the scheme's scheduled end in 2030.
Your installer creates these certificates on your behalf and sells them, on your behalf, to a certificate buyer (usually through an agent) at the prevailing market price. That value is deducted directly from your quoted price before you pay — you are not required to apply for anything separately or wait for a refund. The scheme is administered by the Clean Energy Regulator under the Small-scale Renewable Energy Scheme.
A 6.6kW system installed in the Sydney metro zone (STC Zone 3) in 2026 typically generates in the vicinity of 90–110 STCs, depending on the exact installation date and deeming period remaining. Larger systems generate proportionally more.
STC market prices float within a government-set cap (currently around $40 per certificate, though the traded market price is often somewhat below the cap depending on supply and demand). For a typical 6.6kW Sydney installation in 2026, this translates to roughly $2,000–$2,500 off the upfront cost — the figure quoted throughout this site's cost guides is already net of this discount.
(Figures current as of August 2026 — these incentives step down on a set schedule; confirm current values before quoting.)
This is why the STC "rebate" is really a point-of-sale discount, not a rebate you claim from the government yourself.
The number of STCs a system generates is calculated using a "deeming period" — effectively, years of assumed future generation remaining until the scheme's legislated end on 31 December 2030. Because that end date is fixed, the deeming period shortens every year, and STC entitlements step down accordingly on 1 January each year.
In practical terms: the same system installed in December will generate more STCs than an identical system installed the following January. The gap isn't dramatic in any single year, but it's real and it compounds as 2030 approaches — a good reason not to indefinitely delay a decision you've already made, though it's rarely a reason to rush a purchase before you're properly ready.
(Figures current as of August 2026 — these incentives step down on a set schedule; confirm current values before quoting.)
No — this is one of the most common points of confusion. STCs under this scheme apply to solar panel generation capacity. Home batteries are covered under a separate program, the federal Cheaper Home Batteries Program (which, confusingly, is also delivered via STCs but calculated completely differently, based on usable battery capacity in kWh). We cover that in detail in our NSW Solar Incentives guide, since NSW households can stack it with a state-based battery incentive.
The STC scheme is genuinely valuable and completely legitimate, but it's also routinely used as a vague marketing hook ("massive government rebate!") rather than explained properly. A trustworthy installer will show you the actual certificate count, the assumed certificate price, and the resulting dollar discount as a specific line item — not just a headline number. To see how the STC discount folds into full system pricing, read our Cost of Solar in Sydney 2026 guide.
For a typical 6.6kW Sydney installation in 2026, STCs translate to roughly $2,000–$2,500 off the upfront cost. STC prices float within a government-set cap of around $40 per certificate, often trading a little below it.
No. Your installer or their agent creates the STCs on your behalf and applies the value as a point-of-sale discount on your invoice. You pay the reduced price directly rather than claiming anything from the government or waiting for a cheque.
STC entitlements are based on a "deeming period" of assumed generation until the scheme's fixed end on 31 December 2030. Because the end date is fixed, the deeming period shortens each year, so entitlements step down on 1 January.
No. STCs under this scheme apply to solar panels only. Batteries are covered by the separate federal Cheaper Home Batteries Program, calculated on usable battery capacity in kWh, which NSW households can stack with a state incentive.
Want to see your exact STC entitlement and rebate-inclusive price for your address? Get a precise, itemised quote through Blue Energy Solar's calculator at blueenergysolar.com.au, or call 0421 458 217 / email sales@blueenergysolar.com.au.
