Australia’s solar incentive stack is layered: federal STCs on eligible PV, state programs that come and go, and the federal Cheaper Home Batteries Program for eligible storage — live since 1 July 2025 at ~$372/kWh usable. This national guide maps how the pieces fit, with 2026 STC spot context ($39.85 as of 2026-08-05), so you can read any quote critically and compare CEC-accredited installers on MrSolar.
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Indicative 2026 pricing: a typical 6.6kW system often quotes around $5,000–$8,000 after the STC discount (metro installs often $5,000–$7,500; premium/regional can run higher). See our solar cost guide.
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Small-scale Technology Certificates are created on eligible systems under 100 kW installed by CEC-accredited practitioners using approved products. Certificate volume falls as deeming years countdown to 2030. At $39.85 as of 2026-08-05, MrSolar’s table shows about $1,435 for Zone 3 6.6kW and $1,235 for Zone 4 6.6kW. Brisbane, Perth and Adelaide track Zone 3 in our defaults; Melbourne and Hobart Zone 4; Darwin higher. Always match postcode maths on the quote. Ask the installer to show the certificate or voucher maths with your postcode, the $39.85 spot assumption (as of 2026-08-05) where STCs apply, and a separate line for any Cheaper Home Batteries Program dollars (~$372/kWh usable since 1 July 2025). Save PDFs of every plan, approval and datasheet — warranty claims years later depend on that trail.
Victoria’s Solar Homes remains the headline solar rebate story. Queensland’s Battery Booster, SA’s Home Battery Scheme, ACT Next Gen storage support and NT battery programs target storage or specific cohorts. NSW and Tasmania generally rely on federal STCs for panels today. Treat every state dollar as conditional on income, property type and annual budgets — verify before you celebrate. Size usable kWh to your 4pm–9pm consumption, confirm CEC listing, and keep federal (~$372/kWh usable) and any state battery support itemised — never as one mystery “government discount”. Photograph your switchboard and roof planes before quoting day to cut variation risk.
Since 1 July 2025 the federal battery discount has been operating as an STC-style point-of-sale reduction of roughly $372 per usable kWh. That is about $3,720 off a 10 kWh usable battery before state top-ups. It offers support now — never describe it as something that “will offer” help in the future. Usable capacity, not marketing kWh, drives the dollar amount. Ask the installer to show the certificate or voucher maths with your postcode, the $39.85 spot assumption (as of 2026-08-05) where STCs apply, and a separate line for any Cheaper Home Batteries Program dollars (~$372/kWh usable since 1 July 2025). Save PDFs of every plan, approval and datasheet — warranty claims years later depend on that trail.
Many metro 6.6kW PV systems quote around $5,000–$8,000 after STC in 2026, with sharper markets often $5,000–$7,500. Batteries commonly add $10,000–$16,000 before federal and state support. Commercial and complex residential sites sit outside these bands. Averages are planning tools; three written quotes are buying tools. Ask the installer to show the certificate or voucher maths with your postcode, the $39.85 spot assumption (as of 2026-08-05) where STCs apply, and a separate line for any Cheaper Home Batteries Program dollars (~$372/kWh usable since 1 July 2025). Photograph your switchboard and roof planes before quoting day to cut variation risk.
Non-accredited installers, non-listed products, missing serial documentation, incorrect zone claims and rushed DNSP paperwork are the usual villains. Fake review scores and “free solar” ads are marketing, not incentives. Keep assignment forms. If the discount maths cannot be reproduced from size × zone × spot, pause. Ask the installer to show the certificate or voucher maths with your postcode, the $39.85 spot assumption (as of 2026-08-05) where STCs apply, and a separate line for any Cheaper Home Batteries Program dollars (~$372/kWh usable since 1 July 2025). Save PDFs of every plan, approval and datasheet — warranty claims years later depend on that trail.
Confirm goals (bill cut, backup, EV). Get three CEC-accredited quotes via MrSolar. Itemise STCs, state support and battery discount. Approve DNSP pathway. Install, commission, monitor. Revisit retailer plans after energisation — incentives do not replace tariff hygiene. Keep decisions grounded in your interval data, roof constraints and written DNSP settings rather than national averages or salesperson screenshots. Photograph your switchboard and roof planes before quoting day to cut variation risk. Keep decisions grounded in your interval data, roof constraints and written DNSP settings rather than national averages or salesperson screenshots. Save PDFs of every plan, approval and datasheet — warranty claims years later depend on that trail.
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Written and reviewed by Daniel (Marketplace lead, Epic Unicorn Pty Ltd). We build pages from Australian solar datasets and regulatory references, then map you to CEC-accredited installers only.
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