If you’ve been putting off adding a battery to your solar system because of the price tag, now’s the time to take another look. The federal government’s Cheaper Home Batteries Program has changed the maths on home energy storage — and at Polygon Energy, we’re already helping households across NSW, QLD, SA, ACT and VIC take advantage of it, including many looking for a solar expert canberra homeowners can trust.
For years, the biggest barrier to battery storage wasn’t interest — it was cost. Plenty of Australian households had solar panels happily generating power during the day, only to watch that cheap, clean energy get exported back to the grid for next to nothing, then buy it back at full price once the sun went down. Batteries solved that problem in theory, but the upfront cost put them out of reach for a lot of families. That’s exactly what this program is designed to fix.
What Is the Cheaper Home Batteries Program?
The $7.2 billion federal Cheaper Home Batteries Program launched on 1 July 2025, and take-up has been rapid — with nearly 285,000 batteries installed in the first ten months, more than triple the total number installed in Australia before the program began. It’s a government initiative designed to boost adoption of small-scale battery systems among homes with new or existing rooftop solar, and it works by discounting the upfront cost of installing an eligible battery.
The subsidy is scaled to the size of the battery you install, so households can choose a system that fits their needs while still getting a meaningful discount. Unlike some previous energy rebate schemes, there’s no complicated after-the-fact claims process — the discount is applied directly at the point of sale by your installer, so you see the reduced price before you even sign off on the job.
The program builds on the existing Small-scale Renewable Energy Scheme, which has underpinned Australia’s rooftop solar boom for well over a decade. Extending that same mechanism to batteries was a logical next step, given how many homes already have solar panels sitting idle after dark.
How Much Can You Save?
On a typical 11.5 kWh battery costing around $14,000, the discount works out to roughly $4,000 off. A smaller 5 kWh battery, often around half that price, would be discounted by about $1,800. Larger systems, up to 100 kWh, are also eligible, which opens the door for households with bigger energy needs or those looking to combine battery storage with electric vehicle charging.
The savings don’t stop at installation, either:
- Households with existing solar could save up to $1,100 a year off their power bill by adding a battery.
- Households installing solar and a battery together could save up to $2,300 a year — as much as 90% of a typical family’s electricity bill.
Those figures compound over the life of the system too. A well-maintained lithium battery can run for well over a decade, meaning the annual savings add up to a substantial return over time, on top of the upfront rebate.
If you’re weighing up whether the timing works for your home, a solar expert canberra can walk you through the numbers specific to your property and usage — including how your existing panel size, roof orientation, and household consumption patterns affect payback time.
A New $4,099 Battery Package From Polygon Energy
Polygon Energy has now launched a new $4,099 battery package offer, making it even easier to get started with home battery storage under the Cheaper Home Batteries Program. Combined with the government rebate, this package is designed to bring the upfront cost of going solar-plus-battery down further than ever before. So what are you waiting for?
This kind of package pricing matters because it removes a lot of the guesswork for homeowners comparing quotes. Rather than trying to piece together battery cost, inverter compatibility, and installation labour separately, a bundled offer like the $4,099 package gives a clear all-in figure to plan around — particularly useful for households budgeting around the current cost of living.
Why the Program Matters Beyond Your Own Bill
The Cheaper Home Batteries Program isn’t just about individual households — it’s designed to reduce costs for everyone by lowering reliance on expensive gas generation and reducing strain on poles and wires. With Australia having the highest residential solar adoption rate in the world and nearly two in five homes now carrying rooftop solar, batteries are the missing piece that lets that solar power actually get used after dark, instead of exported for a fraction of its value.
There’s a grid-wide flow-on effect here too. When more homes can store and use their own solar power in the evening peak — traditionally the most expensive and carbon-intensive time to draw electricity — it eases pressure on the broader network. That, in turn, helps reduce the need for costly infrastructure upgrades and expensive peaking gas plants, benefits that flow through to everyone’s power bill, not just those who install a battery.
What About Going Fully Off-Grid?
For rural or semi-rural properties around the capital, a standalone off grid solar system canberra setup is also worth considering, particularly where grid connection is costly or unreliable. A standalone off grid solar system canberratypically pairs a larger battery bank with solar generation sized to cover your home’s full daily usage, removing reliance on the grid altogether.
Going off-grid is a bigger decision than adding a grid-connected battery — it usually means sizing your system generously to cover cloudy stretches and winter months when solar generation drops, plus factoring in backup generation for extended low-sun periods. While off-grid systems sit outside the standard rebate structure in some cases, a standalone off grid solar system canberra specialist can advise on which parts of your setup may still be eligible under the Cheaper Home Batteries Program, particularly if the property retains any grid connection at all.
Is Your Battery Eligible?
To qualify, systems need to fall between 5 kWh and 100 kWh of usable capacity, and must be connected to a new or existing solar PV system. The discount is applied automatically at the point of sale by an accredited installer — you don’t need to claim it separately afterwards.
It’s also worth knowing that additional capacity added to an existing battery can be eligible too, provided the system hasn’t previously received a discount under the program, and the added capacity is at least 5 kWh. That means even households who already have a smaller battery installed may be able to expand their system and still access the rebate on the new capacity.
Polygon Energy works with a wide range of approved battery brands, including Tesla, Sungrow, Huawei, Redback and Solax, so whichever option suits your home and budget, we can help you access the rebate as part of your installation. Whether you need a grid-connected system or a standalone off grid solar system canberra wide, our team can guide you through eligibility and installation, and our current $4,099 package offer is a straightforward way to get started without the guesswork.
Ready to Make the Switch?
The discount is scheduled to gradually taper down as battery prices continue to fall, so the earlier you install, the more you save. If you’re curious what a system would cost for your home after the rebate, get in touch with our solar expert canberra team for a free, no-obligation quote.
