Solar Battery Systems Townsville
Barra Solar Power is your trusted expert for Townsville battery systems, offering cutting-edge energy storage solutions for homes and businesses. As one of the first Tesla Certified Installers in Townsville, James and the team have been at the forefront of off-grid solar and battery installations for over a decade. Whether you’re looking to reduce reliance on the grid, maximise solar savings, or ensure backup power during outages, our high-performance battery systems—including the Tesla Powerwall 3—are designed to deliver reliable and cost-effective energy. With years of experience providing Townsville solar and battery solutions, Barra Solar Power ensures seamless installation, expert advice, and ongoing support tailored to North Queensland’s unique conditions. Common questions are answered on our solar and battery questions page. Already have solar? See adding a battery to existing solar.
Battery sizes for Townsville homes
Most of your power is used after dark. A battery stores your solar for the night, so we quote batteries, or solar with a battery.
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Small
about 8–10 kWhCouples, retirees and smaller homes. Lights, fridge, TV and one air con at night.
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Medium
about 13–18 kWhFamilies running air con most evenings.
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Large
25+ kWhBig homes with a pool, ducted air con or an EV.
No solar yet? We pair 10–30 kW of solar with the right battery.
Exact sizes depend on the brand. We install Sigenergy, Tesla Powerwall, Sungrow, SolaX and BYD.
Federal battery rebate
- First 14 kWh Full rebate, around 30% off
- 14–28 kWh 60% of the rate
- 28–50 kWh 15% of the rate
Set by your install date, not the date you sign. It steps down on 1 January 2027.
What affects the cost
- Brand and size
- Switchboard
- Blackout backup
- Ergon approval
- Roof type
Battery enquiry
Talk to the team.
Tell us what you’re after. Our own Townsville team will be in touch, usually the same business day.
Your details are only used to respond to your enquiry, as set out in our privacy policy.
Frequently asked questions
Good to know.
Battery storage can be tailored to your home, existing solar and energy goals. You can compare your options with our solar and battery savings calculator, read our case studies, or contact us for a tailored quote on 07 4401 5122. If you are considering solar as well, explore our solar panel systems.
01Which battery brands do you install?
Our battery page features options including Tesla Powerwall 3, Sungrow, Sigenergy, SolaX and BYD. We can explain the differences and recommend a system that suits your property and priorities.
02How is the right battery size chosen?
We consider your household usage, solar generation, roof and switchboard, along with how you want to use stored energy. The final size is confirmed in a site-specific design and quote.
03Will a battery keep my home running in a blackout?
Backup during an outage depends on the system design, the battery’s backup capability, essential circuits and installation settings. We can explain what is practical for your home before you decide.
04Can a battery work with Ergon Energy?
Yes, battery systems can be designed for homes connected to the Ergon Energy network. Export settings, approvals and how the battery operates depend on the property and the final system design. Read more about solar and batteries on Ergon in Townsville.
05What is the next step for a battery quote?
We review your existing solar, energy use and goals, then prepare a tailored recommendation. Contact our Townsville team or call 07 4401 5122 to arrange the next step.
06How much does a 10kW solar and battery system cost in Townsville?
It depends on your home. The main factors are the battery brand and size, your switchboard, blackout backup, Ergon approval and your roof type. The federal battery rebate takes around 30% off an eligible battery. For a quote based on your bills and roof, call 07 4401 5122 or request a quote online.
07What size battery suits a 10 to 30 kW solar system?
It depends on how much power you use at night, not just your panels. Couples and smaller homes usually need about 8 to 10 kWh. Families running air con most evenings usually need about 13 to 18 kWh. Big homes with a pool, ducted air con or an EV usually need 25 kWh or more. Exact sizes depend on the brand, so we confirm the size from your bills.
08Is the federal battery rebate going down?
Yes. It steps down on 1 January 2027, then again every six months. The rebate is set by your install date, not the date you sign. The first 14 kWh of usable capacity gets the full rebate, 14 to 28 kWh gets 60% of the rate, and 28 to 50 kWh gets 15%.
Thinking about a battery upgrade? Learn about our solar panel systems for a complete Townsville energy solution.