Solar & Battery Rebates Calculator
Check how much of up to $8,000+ in solar and battery rebates is yours
60 seconds. Then a free, no-obligation quote from one Why Solar Approved installer near you.
- SAA Accredited
- 5.0 on Google
- Takes 60 seconds
We'll match the rebates to what you want to install
100% Free · No Obligation · Spam-Free Guarantee
Thousands of Australian homeowners are adding a battery to their solar this year, most with no upfront cost finance. They store their cheap daytime solar to use through evening peak prices, and many earn extra by exporting through Virtual Power Plant (VPP) programs.
We got ripped off on solar. So we learned everything, so you don't have to.
We set out to power our own home with the sun. We did our homework, we trusted the installer who seemed different from the rest, and we paid close to $100,000. We were charged for German batteries and handed cheap knock-offs. The system couldn't get through a normal week, and we spent five years putting it right.
Then we realised our story wasn't rare. Around one in three Australian solar systems is now an orphan, abandoned by the company that installed it. So we built Why Solar to make sure what happened to us stops with us. We don't sell solar. We vet the installers, and we tell you the truth, even when it earns us nothing.
What homeowners say
Real reviews from Australians who used Why Solar to find their installer.
“Finally, solar advice I can actually trust. No pressure, no pushy sales stuff, just straight up honest info.”
Jasmine, Marlborough
“Spent a few weeks going through this site before installing. Now charging the car off the sun most days. Setup's paying for itself faster than I expected.”
HLR Photography
“They're completely independent, so I felt like I was getting advice that was actually in my best interest.”
Alice, Marlborough
“Really great business to deal with, they saved me so much time and hassle. Would recommend!”
Addy A.
Every installer clears all six checks
A warranty is only as good as the company behind it. Before an installer earns Why Solar approval, they pass every one of these. Most don't.
Credentials
Accreditation and licensing, current and genuine, checked rather than assumed.
Staying power
Years actually trading, and the financial stability to still be here in a decade to honour what they promise.
Proof of work
Real installations we can examine, not a folder of stock photos and slogans.
The actual hands
Who physically turns up to do the job, not the cheapest available subcontractor.
What goes in
Genuine, traceable components that match the quote exactly. No quoting German and fitting Chinese.
How they handle trouble
How they behave when something goes wrong. That, not the sales call, is the true measure of a company.
Where does "up to $8,000+" in rebates come from?
Two federal programs, plus a state scheme where your state runs one. Here is what they are worth on the largest system a normal single-phase home can install, in STC Zone 3, which covers Sydney, Brisbane, Perth, Adelaide and Canberra.
| Rebate | Worth |
|---|---|
| Federal solar rebate (STCs)13.3kW single-phase system, STC Zone 3, 91 certificates | $3,458 |
| Federal Cheaper Home Batteries discountAbout $258 per kWh on the first 14kWh, 14kWh battery, 95 certificates | $3,610 |
| Total on 13.3kW and 14kWhFederal programs only | $7,068 |
| Total on 13.3kW and 24kWhFederal programs only. The battery earns $5,168: full rate on the first 14kWh, 60% above that | $8,626 |
| State top-ups on topVIC $1,400 from the VIC Solar Homes rebate; WA $1,300 from the WA Residential Battery Scheme (Synergy). Other states have none a typical household can count on | Varies |
Your own figure depends on your system size, your STC zone and your state, and the quiz above works it out. See the full working.
The federal solar rebate is not a cash payment from government. It is a number of small-scale technology certificates (STCs) your system creates, which your installer trades and applies to your quote as an upfront discount. The value moves with the certificate market.
All quotes, savings estimates, and rebate calculations provided through our website are indicative only. Final pricing and rebate amounts will be confirmed by your assigned installer following a site assessment. Actual savings may vary based on energy usage, system performance, and electricity rates.
Figures correct as at 2 September 2026.