cheaper home batteries program calculator
Solar Battery Rebate Calculator
Solar Battery rebate calculator qld
GET's Solar Power Battery Calculator 2026
- The Size of your Solar Battery
- Installation Date
With the recent updates to the Cheaper Home Batteries Program, increasing the decline of the STC Rate every 6 months and the introduction of the STC Factor which limits the rebate on larger batteries, calculating what sort of discount you’ll receive became a lot more difficult.
To find out more about the changes to the battery rebate, read our guide to the Cheaper Home Batteries Program here.
Our free and easy to use Solar Battery Rebate Calculator makes it easy to see the rebate you can get.
How To Use This Solar Battery Rebate Calculator
Just enter the size of the battery you’re considering installing and the time frame you’re looking to have the battery installed.
Change the Installation Period to see how the rebate decreases to work out the ideal time for booking in your install.
STC Factor - 1st of May 206
This new feature of the battery rebate works as a tiered rebate system that reduces the amount of rebate (discount) for larger systems.
From 1 May 2026:
- 1–14kWh batteries → 100% of rebate eligibility
- 14–28kWh batteries → 60% of rebate eligibility
- 28–50kWh batteries → just 15% of rebate eligibility
What Size Solar Battery Do I Need?
Unsure of what size solar battery you need for your home? The best way to gauge the correct solar battery size is to use our free Solar Power and Savings Calculator. Simply add in your quarterly bill amount, select when you use the most energy (this determines whether you’re using energy made by your solar system or buying it from the grid) and we’ll be able to recommed the solar system and battery size that will cover your energy bills.
Your Solar Battery Rebate Calculator results are in and the clock is ticking on locking in higher rebate rates.
If you need more information on solar, batteries and rebates check out our library of practical tools and step-by-step solar guides.
From battery capacity to feed-in tariffs to monitoring tutorials—we’ve got everything you need to make an informed choice.
Get more from your solar research
Solar power calculator — what to expect
Solar Power in Townsville, Mackay & Whitsundays
Solar Power Mackay
For Mackay homeowners, a 10kW solar system can generate around 40–44 kWh daily, making it ideal for families with high energy use or pool pumps.
Combined with a battery, this setup can cut bills by up to 90% and provide blackout protection.
With rebates and falling solar costs, Mackay residents are seeing system ROI in as little as 3–5 years.
Solar Power Townsville
A typical 15.84kW solar system in Townsville produces around 66–71 kWh per day, depending on roof angle and shading.
When paired with at least 20 kWh of batteries, that’s enough to cover most household bills.
Thanks to Townsville’s strong sunshine hours and current solar rebates, payback is often under 5–7 years, with long-term savings guaranteed.
Solar Power Whitsundays
In the Whitsundays, a 13.2kW solar + battery system typically produces around 55–60 kWh per day.
Plenty to run air-conditioning, appliances, and even EV charging while enjoying reliable backup power during outages.
With current rebates and feed-in tariffs, many Whitsunday households achieve $0 power bills while increasing property value.
SOlar made simple
Why Green Energy Technologies?
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Savings Guarantee: If your system underperforms, we pay the difference.
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25‑Year Workmanship Warranty on every install.
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10‑Year Service Guarantee: No cost for servicing, maintenance, fault finding, warranty diagnosis, callouts or labour.
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24/7 Monitoring & Bill Analysis: We can track performance and keep your bills aligned with expectations.
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Local & Trusted: 10,000+ systems across Townsville, Mackay & the Whitsundays.
Start Saving on Your Power Bills Today
$0 upfront cost
Boost Home Value
Reduce Carbon Footprint
