8 Best Solar Batteries for Australians

Usable capacity is 100%, and up to 6 modules can be installed per tower for a total of 24kWh. For greater storage capacity, multiple towers of 4 modules can be linked together with a maximum of 16 towers, or 256kWh. The BYD Premium LVL series has a much larger 15.4kWh capacity and is designed for larger off-grid, grid-tie and even off-grid energy storage applications. While not technically stackable, it is modular and scalable up to an impressive 983kWh, close to 1.0GWh. The BYD high voltage (HV) batteries are available in two voltage options (HVM and HVS) for different energy storage requirements, depending on which hybrid inverter is used. A popular combination, shown above, is the Fronius GEN24 inverter and BYD HVM battery.
CEC-accredited installers ensure seamless integration, avoiding $500-$1,000 in retrofit costs commercial solar sumner in Sydney or Hobart. Smart systems like Sonnen integrate with monitoring apps, optimizing ~4,000 kWh/year storage and $1,200/year savings, ensuring efficiency and reliability for your solar setup. In Victoria, residents can access interest-free loans up to $8,800, easing the investment in solar battery technology.

On a national level, the average cost for a 10kW solar battery system in 2025 ranges from $8,999 to $18,000, including installation. This depends on the battery brand, installer, and whether it’s paired with a solar PV system. Although the Powerwall 2 looks appealing at first glance, there are a few drawbacks. Aside from the jaw-dropping price and dubious return on investment, Tesla battery customers don’t really get much choice in terms of size and feed-in type. The Powerwall 2 only works with single-phase power, and 12.5kWh batteries are your only size option.
While the Tesla Powerwall 2 remains popular, exploring alternatives like the Sungrow, Enphase, BYD Battery-Box, and sonnen can help you find the perfect fit for your needs. These options offer competitive features and pricing, making them strong contenders in the solar storage market. Energy Matters helps Australian home and business owners receive personalised solar quotes through our large network of high-quality solar installers. We only work with reputable solar installers with a proven track record of delivering high-quality solar systems. Durability and Long-Term PerformanceGoodWe incorporates Lithium Iron Phosphate (LFP) technology into its batteries, which is known for its stability, safety, and longer lifespan. The battery is covered by a 10-year warranty, ensuring that it will perform reliably for many years to come.
The type of inverter your home requires plays a significant role in the final system cost. If you already have a solar installation with a compatible inverter, the overall cost will be lower. However, if you need to upgrade your inverter to match the new solar battery system, this will add to the total expense. Installation adds $1,500–$3,500, depending on wiring or fireproofing needs.

Their advantages include independent scaling of power, longer cycles and calendar life, and lower cost. They are expensive and usually impractical for standard residential and commercial use. However, they’re widely used for special electric vehicles, industrial power backup systems, and military applications.Let’s find out more about these battery types and how these solar batteries work. Priced at approximately $660 per kWh, and backed by a reassuring 10-year warranty, the Sungrow SBR stands as one of the most cost-effective yet high-quality lithium batteries available.
Lead-acid batteries can typically by discharged to about 50–60%, while flow batteries can be discharged 100%. Your solar panel system (panels, inverter, and battery if you have one) is part of your house, and as such it's covered by your home insurance. However, you should make sure your home's insured amount  is increased to cover the replacement cost of the solar panel system.
They are engineered to handle local conditions while delivering flexibility and strong warranty protection. With modular capacities, long cycle life, and intelligent energy management, Alpha ESS batteries are well-suited for Australian households. They come with robust safety features and manufacturer warranties, making them a trusted choice for long-term energy independence. Gathering quotes early, comparing system designs, and confining installation dates ahead of the 2026 change can lock in value without the pressure.

Though their capacity is typically smaller than Nickel Manganese Cobalt (NMC) batteries. Other popular battery brands like Sungrow and BYD, use LiFePO4 battery cells. The most popular home storage units for grid-connect systems are Lithium ion batteries. The BYD battery is another modular, stackable battery that is a great value option for homeowners. Being able to add 2.76 kWh units as needed, provides system owners with flexibility as their electricity habits change. It was a different case for home battery storage until the rebate was announced.
The batteries can be installed indoors or outdoors, mounted on the wall, or placed on the floor for maximum flexibility. Tesla's dominance in solar storage and solar battery system is a result of its marriage between a sophisticated design aesthetic and unparalleled functionality, adorned with market-leading features. Renowned for reliability, Tesla emerges as the undisputed leader in the realm of solar storage solutions. While a 5kW battery offers significant solar power storage in Australia, it may not fully power your house. If your household uses an average amount (around 16kWh daily), a 5kW battery might cover essential needs during sunlight hours.

If you cannot pay for the solar battery upfront, you may be able to get financing. There are a number of different financing options available, so be sure to shop around to find the best deal. AC-coupled systems are generally easier to install than DC-coupled systems.
Your energy company always gets the better deal when you feed power into the grid. They pay you below-market rates for unused electricity, then turn around and mark it up when you need to use it at night. Weighing only 25kg and measuring 39cm at its longest, it’s suitable for the tightest spaces. It’s great  for homes that don’t need much storage or as an add-on to an existing system. The Enphase AC battery can integrate with other models—which many other batteries can’t. While a single 2.5kWh battery is small enough, the stack size for a decent capacity system can be quite large.