Solar Battery Costs Australia

Key Factors Influencing Solar Battery Costs

  1. Battery Brand and Technology
    • Popular brands like Tesla, BYD, and Sungrow often come with premium pricing due to their established partners, along with good reliability and warranty periods.
    • Lithium iron phosphate (LiFePO4) batteries dominate the market for their longer lifespan and improved safety over traditional lithium-ion batteries.
    • LiFePo4 should be the only choice for your residential battery choice, its the safe Lithium Battery chemistry, and its also the lowest cost.
  2. Capacity and Scalability
    • Larger batteries (e.g., 15 kWh or more) naturally cost more but allow greater storage for homes with higher energy consumption.
    • We are finding that the average homes, especially with heating and cooling systems, require in the range of 15-45Kwh of storage especially if they want some form of grid outage protection.
    • Battery systems like Tesla’s Powerwall allow users to add capacity over time, however, they are more expensive upfront but flexible for future expansion.
  3. Warranty and Lifespan
    • Batteries with longer warranties (e.g., 10 years) and higher cycle life (8,000+ Full cycles) tend to be more expensive. Many batteries are misleading due to the way cycles are counted.
      Full cycles, vs half cycles, and this is important if you are financially savvy, and know when to find the value.
    • For example, the most trusted brand EVE’s 306AH 10000 cycle cells and less well known and a new entrant to LFP cell manufacturing Hithium’s 314Ah cells, which offer 11,000 cycles, are priced higher than almost all brand name battery cells.
    • LiFePro batteries use only A grade high cycle life, ultra long lifespan cells, we do this to provide you our valued customer, with a reliable and high value energy storage system. Doing this helps us stand out as the most professional product.
  4. We choose the best cells,
  5. We DON’T use the lowest cost products
  6. We DON’T move boxes like most modern day retailers who dont care about you
  7. We do solutions that are the cutting edge of the battery industry, we choose these cells for your benefit. Buy once, and dont be fooled by flashy exteriors and brand names.
  8. Government Incentives
    • Depending on the state, rebates or subsidies can significantly lower costs.
  9. Installation and Compatibility
    • Retrofitting a battery to an existing solar system can increase costs compared to installing it with a new solar setup.
    • Hybrid inverters may be required, adding another $2,000 to $5,000 to the total cost.
    • We currently recommend DEYE CEC approved, and Victron for both ongrid and off

Popular Solar Batteries in 2025

  1. Tesla Powerwall 3
    • Capacity: 13.5 kWh
    • Price: $12,000 – $13,500 (plus installation)
    • Key Features: Sleek design, built in inverter + 10-year warranty.
  2. BYD B-BOX PREMIUM 15.4kWh
    • Capacity: 15.4 kWh
    • Price: $10000 – $12999 (plus installation)
    • Key Features: Modular design, LiFePO4 chemistry, scalable.
  3. Sungrow SBR
    • Capacity: 9.6 kWh (expandable)
    • Price: $8,000 – $10,000 (plus installation)
    • Key Features: Affordable option, high efficiency, compatibility with Sungrow inverters.
  4. LiFePro EVE 15.66kWh
    • Capacity: 15.66 kWh
    • Price: $5,999 – $6,999 (plus generally cheaper installation)
    • Key Features: High cycle life, competitive pricing.
    • See more LiFePro 15.66Kwh

Are Solar Batteries Worth It in 2025?

Benefits

  • Energy Independence: Solar batteries store excess energy generated during the day for use at night or during blackouts.
  • Cost Savings: With electricity prices averaging $0.60 per kWh during peak hours, storing solar energy can significantly reduce bills.
  • Environmental Impact: Reduce reliance on fossil fuels and contribute to a sustainable future.

Challenges

  • Upfront Cost: The initial investment is high, though rebates can help.
  • Payback Period: The payback period typically ranges from 7 to 12 years, depending on usage and battery size.
  • Degradation: Batteries degrade over time, with capacity dropping by 10-20% after 10 years.
  • LiFePro 15.66Kwh payback time on peak rates ($0.60AUD)
    The payback period for the LiFePO4 15.66kWh battery, cycled daily to 90% capacity, could be as low as 2 years if the household uses 15kWh during peak times and the battery costs $5999 AUD.

State Incentives and Rebates

  1. Victoria Solar Battery Loan
    • Must install approved batteries with an eligible retailer. In most cases the price of the battery will be more than twice the cost of our LiFePro battery, meaning this is only worth doing if you have chosen a battery from the CEC list. Which is not a requirement, our LiFePro battery can be connected to the grid as long as its connected through a CEC inverter, and the installer holds appropriate battery qualifications.
  2. South Australia Home Battery Scheme (CLOSED)
    • Subsidy of $150 per kWh (up to $2,000), has been ended in 2024.
  3. New South Wales Empowering Homes Program (CURRENT)
    • Interest-free loans for solar and battery systems.
  4. The payback period for the LiFePO4 15.66kWh battery, cycled daily to 90% capacity, would be The payback period for the LiFePO4 15.66kWh battery, cycled daily to 90% capacity, would be approximately 1.94 years if the household uses 15kWh during peak times and the battery costs $5999 AUD.

Conclusion

Solar batteries are a worthwhile investment for many Australians in 2025, particularly for households with high energy consumption or frequent blackouts. While the upfront cost may seem prohibitive for brand name batteries, the LiFePro 15.66Kwh has an incredible payback period, which could be as little as 2 years.

The LiFePro battery could save you tens of thousands of dollars over its LiFespan, which we believe in some cases to be in excess of 10 years. With a performance and parts warranty of 5 Years. You can rest assured you are getting the best value for money available.

Our warranty is limited to 5 years, however the battery is a repairable design, this means should a cell or the BMS fail outside the warranty period, it would be quite simple for a trained or qualified person to make easy and quick repairs, most batteries are not repairable, so this is a huge positive you should factor into your decision. We know that sometimes a single cell inside the battery, can cause pack failure, and if a cell cost about $250-300, and you can repair this, you can extend the life of the battery well into the future.

The long-term benefits in energy savings and environmental impact make them an attractive option. By leveraging government incentives and choosing the right battery size and brand, homeowners can maximize the return on their investment.

Whether you’re upgrading your current solar system or starting fresh, understanding the costs, options, and incentives will help you make an informed decision. With the push towards renewable energy, solar batteries will continue to play a pivotal role in Australia’s energy landscape.