Solar Batteries Australia
Store your solar energy for use at night or during blackouts. The federal Cheaper Home Batteries rebate now uses tiered rates: around $252/kWh on the first 14 kWh, then 60% from 14 to 28 kWh, and 15% from 28 to 50 kWh. The next stepdown is 1 January 2027.
Updated May 2026
Why Add Battery Storage?
Self-Consumption
Store excess solar during the day to use at night. Maximise the value of your solar investment.
Blackout Protection
Keep essential circuits running during power outages. Critical for areas with unreliable grid.
Time-of-Use Arbitrage
Charge from solar or off-peak rates, use during expensive peak periods. Save on high tariffs.
Virtual Power Plant (VPP)
Earn credits by sharing stored energy with the grid during demand peaks.
Battery Chemistry Types
Modern home batteries use lithium-ion technology, but different chemistries have different characteristics.
Lithium Iron Phosphate (LFP)
LiFePO4- checkLongest lifespan (6,000+ cycles)
- checkSafest chemistry
- checkBetter temperature tolerance
- checkNo thermal runaway risk
- closeLower energy density
- closeSlightly larger size
Nickel Manganese Cobalt (NMC)
Li-NMC- checkHigher energy density
- checkCompact size
- checkProven technology
- closeShorter lifespan (3,000-5,000 cycles)
- closeMore temperature sensitive
Top Home Batteries
Premium battery systems from trusted manufacturers. All are SAA-approved and eligible for federal rebates.
Tesla Powerwall 3
BYD Battery-Box Premium
Sungrow SBR
Enphase IQ Battery
Alpha ESS SMILE5
Redback Smart Hybrid
What Size Battery Do You Need?
Battery sizing depends on your evening/night energy usage and what you want to achieve. Here's a quick guide:
5-8 kWh
Cover evening usage for a small household. Lights, TV, fridge, basic appliances.
10-13 kWh
Most popular size. Covers overnight usage for average 3-4 person household.
15-20+ kWh
Large homes, high usage, EV charging, or extended backup during outages.
Key Sizing Factors
- check_circleEvening energy consumption (kWh)
- check_circleSolar system size and excess generation
- check_circleBackup power requirements
- check_circleEV charging at night
- check_circleFuture energy needs
Pro tip: We analyse your smart meter data to recommend the optimal battery size based on your actual usage patterns.
Federal Cheaper Home Batteries Rebate
The Cheaper Home Batteries Program is funded through 2030 and offers around 30% off eligible battery systems. Tiered rates have been in effect since 1 May 2026, with the next STC factor stepdown on 1 January 2027.
Why Act Now?
Installers are booking out months in advance. Early action ensures your spot.
$7.2 billion expanded budget. STC factor steps down twice a year, so installing sooner means a larger rebate.
Allow 4-8 weeks from quote to completion. Don't leave it until the last minute.
Solar Battery Prices Australia 2026
Battery prices have dropped significantly. Here's what you can expect to pay before and after the federal rebate.
| Battery Size | Price (Installed) | Federal Rebate (~30%) | Your Cost |
|---|---|---|---|
| 5kWh | $5,000-$7,000 | ~$1,260 | $3,740-$5,740 |
| 10kWh | $8,000-$12,000 | ~$2,520 | $5,480-$9,480 |
| 13.5kWh | $12,000-$16,000 | ~$3,400 | $8,600-$12,600 |
| 20kWh | $15,000-$22,000 | ~$4,430 | $10,570-$17,570 |
*Prices include installation. Federal rebate uses tiered rates since 1 May 2026: ~$252/kWh on the first 14 kWh, ~$151/kWh on 14 to 28 kWh, ~$38/kWh on 28 to 50 kWh. State incentives (WA, SA, NSW VPP) may provide additional savings. STC factor steps down again 1 January 2027.
10kW Solar Battery Price
A 10kWh battery is the most popular residential size, covering overnight usage for a typical 3-4 person home. After the federal rebate of approximately $2,520, expect to pay $5,480-$9,480 installed depending on brand.
6.6kW Solar System with Battery Price
A complete 6.6kW solar + 10kWh battery package typically costs $15,000-$22,000 before rebates. After federal solar STCs ($1,600-$2,800) and battery rebate (~$2,520), your out-of-pocket cost is approximately $9,700-$17,000 depending on location and equipment.
View solar + battery packagesarrow_forwardFrequently Asked Questions
helpHow long do home batteries last?
Most quality batteries last 10-15 years with proper use. LFP chemistry batteries can exceed 6,000 cycles, equating to 15+ years of daily cycling. Warranties typically guarantee 70-80% capacity retention.
helpCan I go completely off-grid with a battery?
Technically possible but expensive. You'd need a very large battery (30-50kWh+) and oversized solar to cover winter and cloudy periods. Most people achieve 80-95% self-sufficiency while staying grid-connected for backup.
helpWill a battery power my whole house in a blackout?
It depends on setup and battery size. Most installations back up essential circuits (lights, fridge, internet). Whole-home backup is possible with larger batteries and compatible inverters like Tesla Powerwall 3.
helpCan I add a battery to existing solar?
Yes! Batteries can be retrofitted to most existing solar systems. We'll assess your current setup and recommend the best approach - either AC-coupled or a hybrid inverter upgrade.
helpWhat is a Virtual Power Plant (VPP)?
A VPP aggregates home batteries to act as one large power plant. You can earn $300-$1,500+ per year by allowing the VPP operator to use a portion of your stored energy during grid peak demand.
Related Resources
Battery Costs
2026 battery pricing guide with costs by capacity and brand.
Learn more →Battery Comparison
Compare top battery brands side by side on specs, warranty and value.
Learn more →Battery Reviews
In-depth reviews of Tesla, BYD, Enphase and more popular batteries.
Learn more →VPP Programs
Compare Virtual Power Plant programs and earn money from your battery.
Learn more →Solar Batteries by State
State-specific battery rebates, incentives and programs to reduce your upfront cost. Each state has a product page (specs and pricing) and a 2026 buyer's guide (rebate stack, top batteries and what to expect locally).
NSW Batteries
Up to $1,500 PDRS VPP incentive + federal battery rebate in New South Wales.
Learn more →QLD Batteries
Highest solar generation in Australia. Federal rebate ~$2,520 for 10kWh in Queensland (post 1 May 2026 tier).
Learn more →VIC Batteries
Strong TOU spreads (peak 40-55c/kWh) + federal rebate ~$2,520 in Victoria.
Learn more →SA Batteries
$2,050 REPS VPP incentive + $150 annual VPP bill credit in South Australia.
Learn more →WA Batteries
$1,300-$3,800 state rebate + $10,000 interest-free loan for WA homeowners.
Learn more →TAS Batteries
Low FIT (8.782c/kWh) makes self-consumption with batteries highly valuable in Tasmania.
Learn more →NT Batteries
Highest STC zone in Australia. NT battery scheme ($400/kWh) at capacity, federal rebate available.
Learn more →ACT Batteries
HESP up to $5,000 (concession) + $15,000 interest-free loan in the ACT.
Learn more →2026 Battery Buyer's Guides by State
Editorial guides covering local pricing, the rebate stack you can actually claim, top batteries that suit each state, and what installation looks like.
Ready to Add Battery Storage?
Get a customised quote including the federal battery rebate. We'll recommend the best battery for your home.