State rebate
Eligible usable capacity from 5 kWh, paid at $130/kWh for Synergy or $380/kWh for Horizon Power, capped at 10 kWh. VPP and other conditions apply.
Official eligibility rules ↗Current settings · 7 September 2026See the support.
Battery + solar support calculator
See the support.
Then see the price.
Estimate the WA battery rebate, federal battery STCs and optional solar-panel STCs separately, then see how the government no-interest loan could sit against the remaining balance.
Live estimate
Build the numbers.
Price before support$15,000
Estimated WA rebate− $1,300$130/kWh, capped at 10 kWh
Federal battery STCs94Current 2026 battery factor and capacity taper applied
Federal value used in estimate− $3,76094 potential STCs in total, assuming eligibility · $40 gross reference excluding GST
Indicative price after assumptions$9,940
Illustrative WA loan pathway · eligibility not assessed$9,940 at 0% over 10 yearsAbout $83 per month. Actual repayment schedule follows an approved Plenti contract.
Email this estimate to PSA Illustrative general information only—not a quote, financial advice, eligibility decision or credit approval. Battery STCs assume the 6.8 factor for systems certified 1 May–31 December 2026. Optional solar PV STCs assume a 2026 installation in Perth metro zone 3 and eligible new or additional capacity. Actual entitlement and dollar value can differ with postcode, equipment, installation date, market price and agent fees. Confirm the current written quote and scheme terms before proceeding.
- WA rebateSynergy or Horizon Power rate, based on usable capacity
- Federal STCsBattery support plus optional 2026 Perth solar-panel certificates
- Payment viewPossible 0% WA loan illustrated without promising approval
What the estimate includes
Three figures.
Three different rules.
A clean quote should keep each support stream separate. That makes the real equipment and installation price easier to compare.
Battery + solar STCs
The battery estimate applies the 6.8 factor and capacity taper for 1 May–31 December 2026. Optional solar PV support uses the 2026 five-year deeming period and Perth metro zone 3 rating.
Official calculator guidance ↗WA 0% loan
Eligible households may apply for $2,001–$10,000 over 3–10 years. Income, identity, credit and responsible-lending checks apply.
Compare finance pathways ↗A checked number beats a headline
Want PSA to check
your actual quote?
Email the battery size, inverter model, suburb, solar size if included, and written before-support price. PSA can check the installation assumptions and current Synergy scheme pathway.
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