Australia - Updated July 2026
Solar battery cost in Australia (2026)
A home solar battery in Australia typically costs $7,500 to $17,000 installed before rebates. After the federal Cheaper Home Batteries Program (about $252/kWh on the first 14 kWh), many households pay closer to $5,500 to $12,000, depending on size, brand and site work.
Example: a common 10 kWh install is often about $9,000-$14,000 before rebates. With a federal discount around $2,516, indicative net cost is roughly $6,484-$11,484 before any state incentive.
Solar battery prices by size (indicative)
Ranges are typical residential installs in AUD. Federal rebate uses the May- December 2026 STC factor. State rebates (for example WA) can reduce net cost further.
| Usable size | Installed (before rebate) | Federal rebate | Indicative net |
|---|---|---|---|
| 5 kWh | $5,500 - $8,500 | $1,258 | $4,242 - $7,242 |
| 8 kWh | $8,000 - $11,500 | $2,013 | $5,987 - $9,487 |
| 10 kWh | $9,000 - $14,000 | $2,516 | $6,484 - $11,484 |
| 13.5 kWh | $12,500 - $17,000 | $3,397 | $9,103 - $13,603 |
| 20 kWh | $16,000 - $24,000 | $4,428 | $11,572 - $19,572 |
Popular battery models (indicative midpoints)
Midpoints from our calculator catalog. Real quotes vary; use them to compare relative sizing and rebate impact. For a ranked comparison by use case, see our best home batteries guide.
| Model | Usable kWh | Installed mid | After federal |
|---|---|---|---|
| Alpha ESS SMILE (8 kWh) | 8 | $9,200 | $7,187 |
| LG RESU (10H class) | 9.8 | $12,500 | $10,034 |
| sonnenBatterie 10 | 10 | $15,500 | $12,984 |
| Alpha ESS SMILE | 10 | $11,500 | $8,984 |
| Pylontech US5000 stack | 10 | $10,500 | $7,984 |
| Enphase IQ Battery (10T) | 10.1 | $16,500 | $13,959 |
| BYD Battery-Box HVM | 11 | $12,000 | $9,232 |
| Sungrow SBR | 12.8 | $12,500 | $9,280 |
| Tesla Powerwall 3 | 13.5 | $14,500 | $11,103 |
| GoodWe ESA (~16 kWh) | 16 | $14,000 | $10,176 |
What drives the final solar battery cost?
- Usable capacity - larger batteries cost more upfront; federal rebate tapers above 14 kWh.
- Brand and coupling - AC-coupled systems like the Tesla Powerwall 3 can cost more per kWh; modular DC stacks are often cheaper. See our home battery comparison guide for value vs retrofit picks.
- Inverter and site work - hybrid inverter upgrade, switchboard changes and backup hardware add cost. Hybrid inverter costs and retrofit paths explain when AC-coupled batteries avoid a full inverter swap.
- Rebates and loans - federal discount is national; WA still stacks a state rebate; some states offer loans instead.
- Your rates - payback depends on import rate vs feed-in tariff more than headline $/kWh alone.
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Solar battery cost FAQs
How much does a solar battery cost in Australia in 2026?
Most home batteries cost about $7,500 to $17,000 installed before rebates, or roughly $800 to $1,300 per usable kWh. After the federal Cheaper Home Batteries Program, many households pay closer to $5,500 to $12,000 depending on size, brand and site work.
How much does a 10 kWh solar battery cost after rebate?
A typical 10 kWh system is often about $9,000 to $14,000 installed before rebates. With the May to December 2026 federal discount (about $252/kWh on the first 14 kWh), the federal rebate on 10 kWh is roughly $2516, so net cost commonly lands around $6,500 to $11,500 before any state incentives. See our 10 kWh battery cost guide for size-specific ranges and WA stacking examples.
How much does the federal battery rebate reduce the cost?
From May to December 2026 the federal program uses STC factor 6.8 at about $37 per STC (about $252/kWh on the first 14 kWh), tapering for larger systems. Your installer applies this as a point-of-sale discount. The STC factor steps down again from 1 January 2027. Read our Cheaper Home Batteries Program guide for taper rules and eligibility basics.
Does every state have its own battery rebate?
No. Western Australia still offers a stackable state rebate. NSW models a VPP connection incentive. Many other states have closed upfront rebates and rely on the federal program, with some offering loans instead. Check our state rebate comparison guide and VPP guide for current rules.
What size battery should I buy?
Most smaller Australian homes land between 8 and 13.5 kWh usable. The right size depends on evening use, solar size, electricity rate and feed-in tariff. Read our battery sizing guide or use the free calculator to compare suggested size and best payback for your inputs.
Are these prices exact quotes?
No. Figures on this page are indicative midpoints and ranges for Australian residential installs. Final pricing varies by installer, inverter compatibility, switchboard work and location. Use the calculator for a personalised estimate, then get real installer quotes.
Learn more before you buy
Read our guides on the federal Cheaper Home Batteries Program, sizing, payback and state rebate differences.
- Best home batteries in Australia compared
- Add a battery to existing solar
- Hybrid inverter upgrade cost in Australia
- Tesla Powerwall 3 cost in Australia
- Alpha ESS SMILE cost in Australia
- Pylontech US5000 cost in Australia
- Enphase IQ Battery cost in Australia
- sonnenBatterie cost in Australia
- LG RESU cost in Australia
- GoodWe ESA cost in Australia
- Sungrow SBR cost in Australia
- BYD Battery-Box cost in Australia
- 10 kWh battery cost after rebate
- Is a home battery worth it in Australia?
- Cheaper Home Batteries Program explained
- What size solar battery do I need?
- What changes solar battery payback
- State battery rebates compared
- Virtual power plant (VPP) guide
Solar battery cost by state
State rules change net cost and whether you get a rebate, VPP incentive or loan.