Keep the power on when the grid goes down. Maximise your solar investment by storing energy for use at night or during peak rates.
$4,013
In rebates
10+ yr
Battery life
70-85%
Self-consumption
Home batteries let you use more of your solar energy and provide backup power when you need it most.
Store excess solar energy during the day and use it in the evening when rates are highest.
Keep your lights on during power outages. Essential for Perth's summer storms.
Different ways a home battery can reduce your energy costs.
Store your solar energy and use it when the sun goes down
Modelled $500-800/year in extra savings
Charge during off-peak, discharge during peak pricing
Cut your peak-rate spend
Popular battery systems available in Perth from certified installers.
13.5 kWh
11.5 kW continuous
10 years
$12,000 - $14,000
Key features:
Reduce your battery installation cost with available rebates and incentives.
Synergy customers: $130/kWh, max $1,300 (10kWh cap). SSL-approved batteries only.
Check eligibility
STC rebate for batteries. Value depends on capacity and installation year. Decreases annually until 2030.
Available
Distributed Energy Buyback Scheme with time-of-use export rates.
For battery owners
Want to compare more batteries?
SolarBatteryPerth has 3300+ CEC-approved batteries with full pricing, brand health flags, and side-by-side spec comparison.
Common questions about home battery storage in Perth.
It depends on your usage pattern. If you use most power in the evening, a battery stores your solar for when you need it — modelled payback is typically 7-10 years with current WA rebates; actual results vary. If you're mostly home during the day, solar-only may be a better investment first. Use our calculator to compare both scenarios for your household.
Quality home batteries like Tesla Powerwall and BYD typically last 10-15 years and come with 10-year warranties. Most are rated for 6,000-10,000 cycles, which equates to daily cycling for 15-25 years.
Most Perth households need 10-15 kWh of battery capacity. This covers typical evening usage (5-8 kWh) plus some reserve. Larger homes or those with EVs may need 15-20+ kWh.
Yes! Batteries can be retrofitted to most existing solar systems. Some batteries require a compatible hybrid inverter, while others like Tesla Powerwall have built-in inverters.
Get the most from your battery with these complementary solutions.
Enter your system cost and usage to see your payback period, annual savings, and 10-year return.
Get a personalised battery assessment and quotes from certified Perth installers. See how much you could save.
Time-shifting on the Synergy Midday Saver tariff can save a modelled $400-800/year. See how tariff arbitrage works with your battery.
Tariff arbitrage calculatorBattery prices have been falling year on year. Check live pricing to time your purchase.
View market trackerBoost solar self-consumption from 25-35% to 70-85% by storing excess for evening use.
On time-of-use tariffs, batteries let you avoid expensive peak electricity rates.
Keep essentials running during blackouts
Peace of mind value
Charge your EV with stored solar energy
Charge from your own solar
10.2 - 22.1 kWh
Up to 10 kW
10 years
$8,000 - $16,000
Key features:
9.6 - 25.6 kWh
Up to 12.8 kW
10 years
$7,500 - $15,000
Key features:
3.5 - 42 kWh
1.28 kW per unit
15 years
$6,000 - $25,000
Key features:
Yes, but only if your system is configured for backup. Most installations include a backup gateway that disconnects from the grid during outages, allowing your battery to power essential circuits.
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