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25kWh Solar Batteries

A 25kWh battery provides powerful, cost-effective energy storage for both residential and businesses across Australia. Whether you’re aiming to reduce your reliance on the grid, go off-grid, or store excess solar energy for night-time use, a 25kWh system delivers high-value performance. Solar Galaxy installs CEC-approved lithium-ion solar batteries from leading brands like Alpha ESS, Tesla, and Sungrow. These batteries offer high efficiency, fast charging, long lifespan, and seamless integration with your existing solar system. With compact size, smart design, and modular expansion, they’re an ideal solution for homes or businesses with large energy demand.

Why Choose a 25kWh Solar Battery

Installing a 25kWh battery means you’re choosing usable storage capacity that can meet the average daily usage of a large home or small business. Key benefits include:

  • Reduce grid dependence and energy costs
  • Use stored solar power during night
  • Backup critical appliances during blackouts
  • Enable Virtual Power Plant (VPP) participation
  • Expand easily with modular units to match changing demand

For many homeowners, it’s the ideal size: large enough to cover daily usage, compact enough to install quickly, and supported by the latest battery storage technology.

Why Choose a 25kWh Solar Battery

25kWh Solar Battery Specifications

Key Benefits of Our 25kWh Battery Solutions

  • High-efficiency lithium-ion batteries with deep-cycle durability
  • Smart software to monitor charging patterns and grid interaction
  • Fast charging capability for rapid energy capture on sunny days
  • Compatible with all major inverters, including hybrid units
  • Long lifespan: up to 6,000 cycles or 15 years of performance
  • App-based tracking and remote system control
  • Available in cost-effective, scalable formats for residential and commercial use

Best Applications for a 25kWh Battery System

  • Large residential homes with 10kW+ solar system
  • Small to medium businesses with consistent daytime and night energy use
  • Off-grid sites or rural areas with unreliable utility access
  • Systems designed to play a role in demand response or VPPs
  • Properties seeking long-term energy security, backup and cost control

Little Effort, Big Results

Solar Is Simple With SolarGalaxy.

We Get to Know Your Energy Needs.

No cookie cutters in our tool box! We tailor the perfect solar or storage system based on your needs.

1

Leave It to the Pros.

Our expert team swoops in, designing and installing a customised solution so you can thrive from day one. We handle everything—no sweat for you!

2

Pick Your Plan. Power Your Home.

Choose a payment option that suits your needs—from no money down to predictable monthly payments, leases or upfront – You’re in charge!

3

Sit Back, We’ve Got This!

We’ve got your back with 24/7 system monitoring, guarantees, and top-tier customer support. Together, we’re creating a cleaner, greener planet—powered by the sun.

4

Which Solar Battery Size Is Right for You?

Choosing the right solar battery size depends on your daily energy use, solar system size, and whether you want backup during outages or just peak-shaving. Explore our most popular battery sizes below to find the best fit for your home or business:

Use the table below as a basic guide:

Battery Size Ideal For Daily Coverage
5–10kWh Small homes, backup only Partial
13.3–20kWh Medium homes, full daily load Mostly covered
25kWh Large homes, businesses Fully covered + backup

Certified For Excellence

Compare Our Battery Brands

We offer a curated selection of leading battery brands known for their efficiency, safety features, smart controls, and long cycle life. These brands are compliant with Australian standards and eligible for government rebates.

FAQs About 25kWh Solar Batteries

Got Questions About 25kWh Solar Batteries? We’ve Got Answers!

Lithium-ion batteries are best suited for the Australian market thanks to their long lifespan, compact size, and ability to handle wide temperature ranges.

Yes. Our team specialises in adding batteries to existing solar systems, ensuring safe integration with your current inverters and solar panels.

Most 25kWh lithium-ion batteries last between 10 to 15 years with proper use, backed by strong warranty terms from trusted brands like Alpha ESS and Tesla.

Solar battery prices for 25kWh systems range from $18,000–$28,000 including GST, depending on brand, installation complexity, and site requirements as well as eligible rebates.

That depends on your usage. A 25kWh system can reduce your reliance on the grid significantly. For off-grid setups, you may need a larger system or backup generator depending on your demand.

Yes, a 25kWh solar battery is an excellent choice for properties with high daily consumption or larger solar panels systems. It provides substantial storage for night-time usage, supports off-grid capability, and offers strong energy security during outages. Many households and businesses also benefit from generous financial incentives, including federal and state-based battery rebates, making the investment even more cost-effective.

Pricing

6.6kw
Perfect for smaller homes
From $50 / month
Up-to
$
2000
Savings
  • Tier-1 N-Type High Performance Panels
  • Lifetime support included!
  • Battery and EV compatible for future upgrades!
  • Free Monitoring to track your savings!
  • Fast-track installation
Unlock Savings Now
13.2kw Solar
Best for mid-sized homes
From $75 / month
Up-to
$
4000
Savings
  • Tier-1 N-Type High Performance Panels
  • Lifetime support included!
  • Battery and EV compatible for future upgrades!
  • Free Monitoring to track your savings!
  • Fast-track installation
Unlock Savings Now
15kW +
Ideal for energy-hungry homes
From $90 / month
Up-to
$
5000+
Savings
  • Tier-1 N-Type High Performance Panels
  • Lifetime support included!
  • Battery and EV compatible for future upgrades!
  • Free Monitoring to track your savings!
  • Fast-track installation
Unlock Savings Now

Ready to install a 25kWh solar battery? Request a Quote today with Solar Galaxy. Contact Us

1300 339 596