South Australia

South Australian solar and battery rebates, with sources.

Federal-only: SA was the first state with a major battery rebate (the Home Battery Scheme), and it’s now the only major state without a consumer-facing battery rebate after the program wound down. SA homeowners currently claim federal STCs and the federal Cheaper Home Batteries Program.

South Australia · STC Zone 3 (1.382) · Last verified 2026-05-23

SA state programs

No active South Australian state rebate for solar or batteries as of May 2026. The Home Battery Scheme entered wind-down following the 2022–23 State Budget; existing conditionally-approved subsidies are still being progressed (energymining.sa.gov.au).

Federal programs — these apply in SA too

Small-scale Technology Certificates (STCs)

Administered by Clean Energy Regulator · Status: open — Open, phasing down annually until scheme end in 2030

An upfront discount on your solar panel system, applied by the installer at point of sale.

What it is worth: Calculated as: system size (kW) × your postcode zone rating × deeming period (5 years in 2026). Each STC trades on the open market — typically around $36–$39. A 6.6 kW system in Sydney (Zone 3) currently generates around 44–46 STCs.

Eligibility

  • System size ≤ 100 kW
  • CEC-accredited installer and CEC-approved panels and inverter
  • New install (not a replacement of an existing system claimed within the same window)

Stacks with

  • Federal Cheaper Home Batteries Program (battery STCs are a separate stream)
  • Every active state rebate stacks with STCs

The catch most people miss: STC value drops every 1 January as the deeming period shrinks by one year. A system installed in December 2026 is worth meaningfully more in STCs than the same system installed in January 2027.

Cheaper Home Batteries Program

Administered by Department of Climate Change, Energy, the Environment and Water (delivered as STCs) · Status: open — Open since 1 July 2025

Roughly a quarter off the installed cost of a home battery, applied upfront like the solar STC.

What it is worth: Calculated as: usable battery kWh × STC factor × certificate spot price. From 1 May 2026 the STC factor is 6.8 per usable kWh (down from 8.4 in Jan–Apr 2026). Tapered above 14 kWh — 60% rate from 14–28 kWh, 15% rate from 28–50 kWh, nothing above 50 kWh.

Eligibility

  • Battery installed on a new or existing solar PV system
  • Usable capacity between 5 kWh and 100 kWh nominal
  • One battery rebate per address — only the first battery at any site qualifies
  • System commissioned on or after 1 July 2025

Stacks with

  • Federal STCs on the solar panels
  • NSW VPP incentive
  • WA Residential Battery Scheme
  • NT Home and Business Battery Scheme
  • ACT Sustainable Household Scheme loan

The catch most people miss: The STC factor steps down on 1 May each year. An identically-priced battery installed 30 April 2026 is worth roughly $300–$400 more in rebate than the same battery installed 1 May 2026 (10 kWh example). Homeowners who delay past April lose meaningful money.

Common questions

Did SA replace the Home Battery Scheme?
No replacement consumer rebate has been announced. SA Government activity in this space is currently grid-scale (emPowering SA) rather than household-level rebates.
What can an SA homeowner claim in 2026?
Two federal programs: STCs on solar panels and the Cheaper Home Batteries Program on the battery. Both are delivered as an upfront discount applied by the installer at the quote, so the homeowner doesn’t pay the full price and claim back later.
What zone is Adelaide in for STC purposes?
Adelaide is in Zone 3 with a zone rating of 1.382. Most of South Australia outside the southern coastal strip also sits in Zone 3.
My quote mentions a SA battery rebate — is that real?
Be careful. The Home Battery Scheme is in wind-down. Anything still being marketed as a "SA battery rebate" in 2026 should be checked against energymining.sa.gov.au. The federal Cheaper Home Batteries rebate is real and current; it just isn’t SA-specific.

Postcode in, up to 3 vetted installers out. Free for homeowners, no obligation. Federal rebates · Solar guides