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13.3kWh Solar Batteries

The 13.3kWh battery is one of the most popular choices for Australian homeowners and small businesses looking to take control of rising electricity bills, maximise solar power usage, and ensure reliable battery storage for night-time or emergency use. With strong usable capacity, this size supports stored energy needs for both residential and commercial applications.

Solar Galaxy delivers professional installation of CEC-approved batteries like the Alpha ESS battery, ensuring long-term efficiency, expandable design, and full VPP ready functionality. Whether you’re adding storage to an existing solar system or planning a new solar system altogether, we design and install for optimal performance and payback period.

Why Choose a 13.3kWh Solar Battery

A 13.3kWh solar battery strikes the ideal balance between storage capacity and cost. For households generating excess energy from their solar panels, this size allows you to shift solar generation to offset night-time use, reduce grid reliance, and participate in virtual power plant (VPP) programs.

  • Stores enough kilowatt hours to power average homes overnight
  • Offsets low solar feed in tariff returns
  • Supports grid connected solar and off grid applications
  • Enables backup during cloudy days or blackouts
  • Designed for energy independence and long-term savings
Why Choose a 13.3kWh Solar Battery

13.3kWh Solar Battery Specifications

Key Benefits of Our 13.3kWh Battery Solutions

  • Usable capacity of up to 12.5 kWh, depending on brand
  • Seamless integration with inverter systems
  • Compatible with brands like Alpha ESS, Sungrow, and Goodwe
  • Built for Australian conditions with excellent performance
  • Expandable design allows for future energy scaling
  • Ideal for both residential and small commercial systems

Best Applications for a 13.3kWh Battery System

  • Homes with 4+ people and high energy consumption
  • Small businesses operating into the evening
  • Off grid properties needing daily power reserves
  • Locations participating in South Australia’s leading VPP programs
  • Sites where roof space limits larger solar systems

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:

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 13.3kWh Solar Batteries

Got Questions About 13.3kWh Solar Batteries? We’ve Got Answers!

It provides about 12.5kWh of usable capacity, enough to cover most homes’ night-time demand or provide emergency backup.

Typically, a 6.6kW to 10kW solar system (around 16–24 solar panels) will generate enough excess energy daily to fill the battery.

Yes. Models like the Alpha ESS battery are VPP ready, enabling participation in programs that offer credits for sharing stored power.

Payback period varies based on usage, tariff rates, and available rebates. With a VPP and full battery use, expect returns in 6–9 years.

Absolutely. Most solar battery storage units, including Alpha ESS, are compatible with existing solar systems when paired with the right inverter.

Expect excellent performance, long lifespan, and daily use cycles, even during cloudy days or off-grid conditions, depending on how it’s configured.

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 13.3kWh solar battery? Request a Quote today with Solar Galaxy. Contact Us

1300 339 596