How Much Does a Solar Battery System Cost? 2025 Update after Federal Battery Rebate

When you choose Springers Solar to install your Sungrow solar inverter, you are selecting a Sungrow Premium Installer. We are proud to recommend and install Sungrow for our QLD customers - they are efficient, high-performing, and durable units. It's important to note that this is just a rough estimate, and the actual cost may be higher or lower depending on your specific requirements and the quality of the components you choose. Additionally, government incentives and rebates, such as the Small-scale Technology Certificates (STCs), can help offset the upfront cost of the system, making it a more affordable investment.
Yes—solar batteries like the Tesla Powerwall 3 come with blackout protection, which means you’ll keep the lights (and fridge, Wi-Fi, and more) on even when the grid goes down. It’s one of the biggest benefits of adding a battery commercial solar battery sumner to your solar setup. While feed-in tariffs (FiTs) have dropped, self-consumption is now key. That’s where solar batteries shine—they store excess energy for you to use later, rather than selling it back at a low rate. With tailored setups, expert advice, and reliable tech, our solar and battery solutions deliver long-term savings for Sunshine Coast homeowners—no matter your energy needs. In this guide, I break down the real costs, explain which rebates are available and how they affect your payback.

Solar power is a clean, renewable energy source that has gained significant popularity in recent years. By harnessing the sun's energy, homeowners and businesses can reduce their carbon footprint, lower their energy bills, and contribute to a more sustainable future. In Brisbane, Queensland, the sunny climate makes solar power an excellent choice for both residential and commercial properties. This is the ultimate guide to the cost of a 6.6 kW solar system in Brisbane, Queensland. In this comprehensive article, we'll explore the benefits of solar power, the components of a 6.6 kW system, different brands to suit each budget, and the factors that influence the cost.
Price of the solar installation in Brisbane may also vary depending on brands and solar panel costs. When it comes to harnessing the power of the sun and ensuring uninterrupted energy supply, solar batteries are the unsung heroes of the solar energy landscape. In Brisbane, Australia, where sunny days are abundant, the use of solar battery storage... Make your decision after calculating the cost of solar system installed correctly.
Barring, the period of tropical climate, solar systems in Townsville generates sufficient power to light up the houses and reduce their electricity costs to a great extent. In recent years the number of solar customers who have included a battery or retrofitted a battery to an existing solar system has increased. This is partly due to the drop in costs for solar batteries and emergence of virtual power plants which can help homeowners extract more value from their batteries. Since May 2014, Solar Choice has been publishing average solar PV system prices for solar systems from 10kW to 100kW via the Commercial Solar PV Price Index.

Using these figures as a guide, we can calculate the savings and payback potential of a solar system in Brisbane. The storage capacity of a 13.2 kW solar battery system depends on the type of battery used. For example, Tesla’s Powerwall 2 can store up to 13.5 kWh of energy, making it suitable for a system of this size. If you expect your energy needs to grow, ensure the battery system you choose is modular and allows for future expansion. Brands like Sonnen and Tesla offer modular systems where additional batteries can be added over time. Modern solar batteries, particularly lithium-ion options, come with long lifespans of up to years.
Consider if an entire system warranty is important to you as you may have to pay more for this. Similarly, comparing solar quotes on price alone, is something we recommend you avoid. To see detailed installation figures for any Queensland location and other  interesting PV-related statistics, check out our solar in your location tool. Queensland has three different rebate amounts depending on where you live in the state.

For the sake of providing a guideline, let’s assume that the average solar panel is 1.7m2 and produces 400 watts per panel. A 13kW system would therefore require approximately 33 solar panels and require approximately 56.1 m2 of roof space to accommodate these panels. There is no shortage of cut-price solar companies in Australia that will quote significantly cheaper than $1,000 per kW, however, it’s important to consider the full picture when comparing suppliers.
However,  in Brisbane, nearly every combination of panel angle and orientation can generate enough solar electricity to deliver great savings. Your budget will be a significant factor in selecting the right solar battery system. While high-end options like Tesla Powerwall and LG Chem provide excellent performance and reliability, they also come with a higher price tag.
Solar installers generally have tiers of offers to cater to consumers on a budget, or consumers willing to pay more for higher-quality to products. The Solar Choice Price Index references the standard offer prices are these are most commonly selected by customers. No allowance has been made for variances in the quality of the components.

Since May 2023, 1739 Aussies have  told us what they paid for a 10 kW solar system. As of March 2025, its ~ $10,000 fully installed, down from ~$11,000 in early 2023. This is despite the solar rebate reducing twice, in Jan ’24 and Jan ’25. To see our table of some of the solar batteries with the longest minimum through put – check out our warranty comparison guide. Considering there are some variables you will find that most people fall into 3 buckets when it comes to their energy usage. A good rule of thumb is that the more energy you can use from your solar system instead of selling the more you can save.
A 370w solar panel multiplied by 18 equals 6.6kw, depending on the wattage size of the solar panel brand. The higher the individual panel’s wattage, the fewer solar panels you’ll need. Another consideration is not just how much energy you use, but also when you use it. For example, homeowners who are rarely at home will need a larger system to make the same savings as someone who uses the majority of their electricity throughout the day. This is because energy produced and used by your home is more valuable than energy produced and sold to an energy company via a feed in tariff.
Further details are pending, but the program boasts the potential to reduce electricity bills by up to $800. With the introduction of the nationwide solar battery rebate, it is unlikely the the Battery Booster program will reopen anytime soon. The rebate is estimated to save up to $372 per kWh off the cost of a new solar battery.