SOLAR BATTERY STORAGE SYSTEM
24KWh
Great for small & medium homes
$6,999*
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24kWh Solar Battery
A 24kWh solar battery is a powerful home energy storage option for Australian households that want to store more solar energy, reduce grid usage and improve backup power support.
This battery size is best suited for small to medium homes with higher energy needs, such as homes using air-conditioning, multiple appliances, work-from-home setups or EV charging. It can also support larger homes, depending on daily energy usage, solar system size and backup power requirements.
Whether you are upgrading an existing solar system or installing a new solar and battery package, a 24kWh battery can help improve solar self-consumption, reduce grid reliance and provide more energy security.
DISCOVER THE BEST SOLAR BATTERY FOR YOUR SOLAR SYSTEM
24KWh
Solar Battery
Best for small & medium homes
$
6,999
*
Small Home
- Complete Energy Solution
- 24/7 Power Backup
- Seamless Integration
- High-Quality Energy Storage
30KWh
Solar Battery
High-usages small & medium homes
$
7,999
*
Medium Home
- Complete Energy Solution
- 24/7 Power Backup
- Seamless Integration
- High-Quality Energy Storage
40KWh
Solar Battery
Medium homes & small business
$
10,799
*
Medium Home
- Complete Energy Solution
- 24/7 Power Backup
- Seamless Integration
- High-Quality Energy Storage
What is a 24kWh Solar Battery?
A 24kWh solar battery can store up to 24 kilowatt-hours of electricity. When paired with a suitable rooftop solar system, it can store excess solar power generated during the day and make that energy available at night, during peak tariff periods or during power outages.
A 24kWh battery is suitable for:
- Homes with higher daily energy usage
- Larger families using multiple appliances
- Households with electric vehicle charging
- Homes needing stronger backup power support
- Small business or work-from-home setups with higher energy demand
For smaller homes with low energy usage, a smaller battery may be more cost-effective.
How Long Can a 24kWh Battery Power Your Home?
A 24kWh battery can provide different backup times depending on how much power the home is using during an outage. The backup time depends on usable battery capacity, appliance load, inverter size, battery efficiency and whether the system is powering the whole home or only essential circuits.
As a simple guide:
| Home Load | Approx. Backup Time |
|---|---|
| 1 kW load | Up to 24 hours |
| 2 kW load | Up to 12 hours |
| 3 kW load | Up to 8 hours |
| 4 kW load | Up to 6 hours |
| 5 kW load | Up to 4.8 hours |
For example, if your home is using around 2kW of power, a 24kWh battery may provide backup for approximately 12 hours. If only essential appliances such as lights, fridge, Wi-Fi and selected power points are connected, the backup time can be longer. Actual backup time will vary depending on the battery brand, usable capacity, system design, appliance usage and backup configuration.
24kWh Batteries Installation Compatibility and Brands
To make the most of a 24kWh battery, it should be paired with a suitable solar system size, hybrid inverter and backup configuration. Many Australian homes may use a 6kW to 10kW solar system, while higher-usage households may need a larger solar setup to charge the battery more effectively.
Most installers manage the full process, including system design, battery placement, hybrid inverter selection, software setup, grid connection and safety compliance.
Several trusted battery brands in Australia offer 24kWh battery systems or expandable options around this size, including:
These battery systems can be installed in garages, utility rooms or suitable weather-protected outdoor locations, depending on the battery model, IP rating, ventilation, available space and manufacturer installation requirements.
Advantages of Choosing 24kWh Solar Battery
- Consistent daily use – Store enough energy to cover overnight needs and cloudy days Grid protection – Acts as a backup when there’s a blackout or grid failure
- Reduced bills – Less reliance on the power grid means fewer surprises on your energy bill
- EV friendly – Easily charge your electric vehicle without tapping into the grid
- Sustainable – Lower your carbon footprint by relying more on your solar system
- Expandable systems – Many 24kWh solutions are modular and can grow with your needs
Things to Consider Before Buying
While a 24kWh battery offers a lot, it’s important to keep a few things in mind:
- Space – Larger batteries may need dedicated indoor or outdoor space for safe installation
- Overkill for low-usage homes – If your home uses little energy, a smaller system may be better suited
- Check compatibility – Not every inverter or solar system works well with large-capacity batteries
24kWh Solar Battery Price in Australia (2026 Updated)
The 24kWh solar battery is a popular choice for Australian households looking to store excess solar energy and reduce electricity bills. Currently, the price for a 24kWh battery starts at around A$6,999, depending on the brand, battery chemistry, and additional features like smart monitoring or expandability. Investing in this battery can help you maximise your solar system’s potential while providing reliable backup power during outages.
* Prices may vary depending on brand, system size, installation requirements, location and GST. T&Cs apply. To know the exact cost for a fully installed system, request a free quote today.
24kWh Solar Battery Lifespan & Warranty Info
A 24kWh solar battery is a long‑term energy solution, and understanding lifespan and warranty is key to assessing its value. Most modern 24kWh systems use lithium‑based chemistries like LiFePO₄ (lithium iron phosphate), which are known for stability, safety, and slower degradation over time.
Typically, these batteries are designed to last 10–15 years in normal residential or small business use. Many manufacturers also rate their products by cycle count — often between 6,000 and 10,000 cycles — meaning the battery can be charged and discharged thousands of times before capacity drops significantly.
Warranty coverage varies by brand and model, but common features include:
Manufacturer warranty: Often 10 years or a specified cycle life guarantee.
Performance guarantee: Ensures the battery retains a minimum percentage of its original capacity (e.g., 60–70%) by the end of the warranty period.
Defects protection: Covers faults in materials or workmanship under normal use.
Popular 24kWh Solar Battery Options in Australia
Not every battery brand offers an exact 24kWh battery system. Many homeowners compare battery options around the 22kWh to 26kWh range, depending on brand, modular design, inverter compatibility and installation requirements.
| Battery Brand | Closest Capacity | Key Advantage | Best For |
|---|---|---|---|
| Sigenergy SigenStor | 24 kWh | Smart modular battery system with strong energy management | Homes wanting modern smart battery storage |
| Neovolt Battery | 24 kWh | Flexible LFP battery storage with scalable capacity | Homes needing balanced storage and backup support |
| GoodWe ESA Series | 24.96 kWh | All-in-one style energy storage with GoodWe inverter integration | Homes using or planning GoodWe solar systems |
| Fox ESS CQ6 Series | 23.96 kWh | Modular battery design with flexible system expansion | Homes needing expandable battery storage |
| Dyness Battery | 23.4 kWh | Established modular LFP battery storage option | Homes wanting reliable solar energy storage |
| Fox ESS EQ Series | 23.30 kWh | High-voltage modular battery with scalable storage | Homes needing flexible high-voltage battery setup |
| Sungrow SBR224 | 22.4 kWh | Premium high-voltage LFP battery with strong inverter compatibility | Homes with Sungrow hybrid inverter systems |
| Sungrow SBR256 | 25.6 kWh | Larger SBR option with higher6 kWh | Larger SBR option with higher usable storage capacity |
| AlphaESS SMILE M5 | 25 kWh | Modular home battery system with simple energy storage design | Homes wanting easy solar battery expansion |
| SOFAR Battery | 25 kWh | Modular battery storage with hybrid inverter support | Homes needing scalable solar storage and backup support |
Solar Battery Rebates & Incentives in Australia
From 1 May 2026, eligible battery systems receive rebate support based on usable battery capacity:
- First 14kWh gets the 100% STC factor
- Above 14kWh to 28kWh gets the 60% STC factor
- Above 28kWh to 50kWh gets the 15% STC factor
For example, a 24kWh usable battery receives the 100% STC factor for the first 14kWh and the 60% factor for the remaining 10kWh.
Eligible batteries must have a nominal capacity between 5kWh and 100kWh. However, STCs can only be claimed for the first 50kWh of usable capacity. Homeowners should confirm the latest rebate amount and eligibility with a qualified solar battery installer before purchasing.
Is a 24kWh Solar Battery Enough for an Australian Home?
A 24kWh solar battery is a solid choice for many Australian households, especially those with moderate to high daily energy consumption. It can comfortably store enough power to cover most household appliances, lighting, and even small appliances throughout the day and night. However, it might be overkill for smaller homes or households with low energy needs, where a smaller battery could be more cost-effective. This battery size truly shines in homes with electric vehicles or larger families of 4–6 people, providing enough energy to keep everyone’s devices, EV chargers, and essential appliances running smoothly without relying too heavily on the grid.
Daily usage match: Powers typical household appliances efficiently.
Not ideal for low-usage homes: Smaller households may not need this much capacity.
Works best with EV / large families: Perfect for homes with electric vehicles or multiple residents.
Who Should Get a 24 kWh Battery?
A 24kWh solar battery is perfect for households or small businesses with moderate to high energy needs. It’s especially suitable for:
Larger households of 4–6 people running multiple appliances simultaneously.
Homeowners with an electric vehicle (EV) or those planning to get one soon.
Small businesses that have moderate daytime energy consumption.
Families seeking reliable backup power, without fully going off-grid.
This size ensures you have enough stored energy to cover daily needs, charge EVs, and keep essential appliances running smoothly, while reducing reliance on the grid.
Get the best deal and expert advice at Aussie Solar Tech! We’ll help you choose the ideal 24kWh solar battery system and get a free quote tailored to your home’s unique energy needs.
Frequently Asked Questions
How long can a 24kWh battery power a home?
A fully charged 24kWh battery can typically power essential household appliances for 12–24 hours, depending on energy usage and load management.
Can a 24kWh battery work during blackouts?
Yes, most 24kWh solar batteries provide backup power during outages when paired with a compatible hybrid inverter and backup configuration.
What is the 24kWh solar battery price in Australia?
The 24kW solar battery price in Australia starts from approximately AUD $6,999, with final costs varying based on brand, inverter type, and installation.
Is a 24kWh solar battery eligible for rebates in Australia?
In 2026, many battery systems are eligible for government rebates or incentives, depending on the state and installation by a CEC-approved installer.
Can a 24kWh battery be expanded in the future?
Yes, many 24kWh battery systems are modular and allow capacity expansion if your energy needs increase over time.
What is the Sigenergy 24kWh battery price in Australia?
The Sigenergy 24kWh battery price in Australia is approximately AUD $11,219, depending on the system configuration and installation requirements.
Is a 24kWh solar battery enough for an Australian home?
Yes, a 24kWh solar battery is suitable for medium to large Australian households, especially homes with high daily energy use, multiple appliances, or an electric vehicle.
WE INSTALL CEC APPROVED POPULAR SOLAR BATTERIES IN AUSTRALIA
- Tesla Powerwall
Great for storing solar energy at home because it is very efficient and lasts a long time.
- Sungrow Battery
Works well and is affordable. It can be used in homes and businesses.
- Sigenergy Battery
A dependable storage option that focuses on being eco-friendly and simple to use.
- SolarEdge Battery
Works best with SolarEdge inverters and gives you excellent monitoring and control.
- Enphase Battery
BYD Battery
