Federal Cheaper Home Batteries Program: The 2026 Stacking Guide for NSW, VIC, WA & QLD
One Federal rebate. Four state schemes. Combined incentives worth up to $8,000+. Here's exactly how the Cheaper Home Batteries Program works in 2026 — and how households in every mainland state can layer state rebates, zero-interest loans and Solar Sharer plans on top for battery payback under 6 years.
Taylor M
NatHERS & Home Energy Specialist
The short answer
- • Federal Cheaper Home Batteries Program discounts an installed battery by ~30% (~$300/kWh, ~$3,000 on a 10 kWh battery) via STCs.
- • It stacks with every state scheme — NSW loans, Solar Victoria loans, WA Residential Battery Scheme, QLD Battery Booster.
- • Must be paired with solar and installed by a CEC accredited installer using CEC-approved battery hardware.
- • Discount is applied at point of sale — you never lodge STC paperwork yourself.
- • STC value steps down annually to 2030 — earlier installs lock in a bigger discount.
How the Federal rebate actually works
From 1 July 2025, the Federal Government expanded the Small-scale Renewable Energy Scheme (SRES) to cover home batteries. Every kWh of usable battery capacity earns Small-scale Technology Certificates (STCs), which have a market value of roughly $35–$40 each. Batteries earn around 8–9 STCs per usable kWh in 2026 — worth about $300/kWh.
Your installer redeems the STCs and passes the value through as an instant discount on your quote. You never touch a portal, never wait for a rebate cheque. If a quote doesn't itemise the STC discount, ask for it — it's not optional.
| Battery size | Approx. STC discount (2026) | Typical installed price after Federal |
|---|---|---|
| 6.5 kWh | ~$1,950 | $6,500–$8,000 |
| 10 kWh | ~$3,000 | $8,500–$10,500 |
| 13.5 kWh (Powerwall) | ~$4,050 | $11,000–$13,500 |
| 20 kWh | ~$6,000 | $15,000–$18,500 |
Prices are indicative installed prices after the Federal STC discount but before any state scheme. State rebates in the next section come off these numbers.
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Get Your EstimateThe stacking map — Federal + each state
Every mainland state now has its own battery scheme that layers on top of the Federal rebate. Here's the 2026 snapshot:
| State | State incentive | Combined (10 kWh) | Guide |
|---|---|---|---|
| NSW | $15,000 zero-interest loan (Home Energy Saver) — covers battery + insulation + heat pump | ~$3,000 Federal + up to $15k financed | NSW guide → |
| VIC | Solar Homes interest-free battery loan up to $8,800 + Solar Sharer plan (from 1 Oct 2026) | ~$3,000 Federal + $8,800 financed | VIC guide → |
| WA (Synergy) | $130/kWh rebate, max $1,300 + $10,000 no-interest loan (Plenti) | ~$4,300 upfront | WA guide → |
| WA (Horizon) | $380/kWh rebate, max $3,800 + $10,000 no-interest loan | ~$6,800 upfront | WA guide → |
| QLD | $3,000 standard / $4,000 for households under $180k (Battery Booster) | ~$6,000–$7,000 upfront | QLD guide → |
SA, TAS, ACT and NT don't currently run a dedicated state battery rebate — households in those states rely on the Federal Cheaper Home Batteries Program alone (still ~$3,000 off a 10 kWh install), plus retailer VPP sign-on bonuses of $500–$1,500 that stack on top.
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Check My SavingsEligibility — what has to be true
The Federal program has a short list of non-negotiables:
- • Solar first (or same install). The battery must be paired with new or existing rooftop solar.
- • Battery size: 5 kWh minimum usable capacity, 100 kWh maximum. Only the first 50 kWh earns STCs.
- • Approved hardware. The battery must be on the Clean Energy Council approved product list.
- • Approved installer. Installation must be performed by a CEC accredited installer with the battery endorsement.
- • VPP-capable. The battery must be able to connect to a Virtual Power Plant (you don't have to join one — it just has to be capable).
- • One rebate per property. You can't stack multiple Federal claims on the same address.
Why installing sooner beats waiting
The Federal STC discount is designed to phase down. Each year the "deeming period" (how many years of future generation your battery is credited for up front) shrinks by one year, so the $/kWh discount drops accordingly:
| Install year | Approx. $/kWh | 10 kWh discount |
|---|---|---|
| 2026 | ~$300 | ~$3,000 |
| 2027 | ~$260 | ~$2,600 |
| 2028 | ~$220 | ~$2,200 |
| 2029 | ~$185 | ~$1,850 |
| 2030 (final year) | ~$145 | ~$1,450 |
Values are indicative — actual STC price fluctuates with the market. Waiting a year on a 10 kWh install typically costs ~$400 in lost Federal discount.
Pairing with Solar Sharer plans
From 1 July 2026 (NSW, SA, SE QLD) and 1 October 2026 (VIC), retailers must offer plans with 3 hours of free midday power. A battery lets you charge from that free window and your rooftop solar, then discharge across the 4pm–9pm peak at 35–45c/kWh retail rates.
Read the full breakdown in the Solar Sharer national guide and the Victorian rollout.
Where to start in your state
A NatHERS or Whole-of-Home assessment identifies the smart order for upgrades — insulation and heat pumps often deliver a better return than a battery, and stacking them into the same rebate window multiplies your savings. Pick your state to compare accredited assessors:
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