NSW has quietly relaunched its home and business battery rebate, and the changes are bigger than most headlines are giving them credit for. From 1 September 2026, apartment buildings and larger energy users can access a state rebate that stacks on top of the federal Cheaper Home Batteries scheme, and depending on your situation, the combined discount could be the difference between a battery that pays for itself in seven years and one that pays for itself in under four.
Most coverage of this change has focused on the policy detail. What actually matters if you’re weighing up a battery is simpler: how much money does stacking these two rebates put back in your pocket, and does your situation even qualify? Here’s how it plays out for four different types of buyers, from apartment blocks to large commercial energy users.
Why NSW made this change
The old version of this incentive was really only designed with single-family homes in mind, which meant two very different groups had effectively been shut out: people living in multi-dwelling buildings, and larger commercial or industrial operators whose energy use and grid impact dwarfs a typical household’s.
There’s also a funding pressure angle worth knowing about. The federal Cheaper Home Batteries rebate has seen strong demand since launch, enough that it’s raised questions about how quickly money moves through the scheme. Widening PDRS eligibility spreads that demand across more building types rather than funnelling it all through households, and it does so while still chasing the scheme’s original purpose, easing pressure on the grid at peak times, which is exactly what “Peak Demand Reduction” was always meant to describe.
The result is a scheme that now has four distinct tiers, each with its own eligibility rules and stacking potential.
The two rebates, in plain english
There are two separate incentives at play here, and you can generally claim both together.
- The federal Cheaper Home Batteries (CHB) rebate is a national scheme that knocks a set amount off the upfront cost of a home battery, based on its size, regardless of which state you’re in.
- NSW’s Peak Demand Reduction Scheme (PDRS) is a state-based scheme that creates certificates for batteries that help reduce strain on the grid at peak times. Installers can convert those certificates into a discount for the customer. As of September, PDRS has been expanded to cover apartment buildings and much larger commercial systems, up to 30 MWh, for the first time.
The key point: in most cases you can claim both. CHB knocks money off first, then PDRS reduces the remaining cost further.
Scenario 1: The homeowner
If you’re in a standalone house looking at a typical home battery, the honest answer is that not much has changed for you in this update. Households were already eligible for the CHB rebate, and PDRS eligibility for single-dwelling homes remains largely tied to joining a virtual power plant (VPP) for the added benefit. This round of expansion was aimed squarely at the two groups of buyers who’ve historically had the fewest options.
Scenario 2: The apartment building
This is where the changes get interesting. Previously, if you lived in an apartment, a home battery simply wasn’t something you could access. There’s no balcony to bolt a battery onto and no way to claim a rebate designed around single-dwelling installs.
Under the new PDRS rules, buildings with more than four dwellings and no existing battery can now access a rebate for a shared system sized between 20 kWh and 200 kWh, capped at 5 kWh per dwelling. That shared system can also stack with the federal CHB rebate, up to 100 kWh.
Take a 10-unit apartment block installing an 80 kWh shared battery, sized within the 5 kWh-per-dwelling cap. That system would qualify for CHB support on the eligible portion, plus a further PDRS discount on top, bringing the combined rebate well above what either scheme offers on its own. Spread across ten unit owners via the strata, the per-apartment cost of getting battery storage starts looking realistic for the first time, rather than purely theoretical.
The catch is coordination. A rebate like this needs to be initiated through the owners corporation or strata committee rather than an individual resident, so the real first step for apartment dwellers is raising it at the next strata meeting, not calling an installer directly.
Scenario 3: The small or medium business
Businesses installing a system between 20 kWh and 200 kWh (with a four-hour battery duration cap) can now access a PDRS rebate, and if they’re pairing that battery with a new solar installation, there’s an additional bonus incentive on top. Like apartments, CHB stacking applies up to 100 kWh.
A small business installing a 100 kWh battery alongside new solar could realistically be looking at three separate discounts layered on top of each other: the CHB rebate, the standard PDRS rebate, and the solar-pairing bonus. Industry estimates suggest this kind of stacking is what’s pulling commercial payback periods down from around seven years to under four, a genuinely different investment case than existed even a year ago.
Scenario 4: The large commercial or industrial energy user
This is the tier that’s genuinely new, and it’s where the “big energy users” part of this update lives. Sites that use large amounts of power, think manufacturing facilities, cold storage, large retail precincts, or data centres, can now access PDRS support for systems ranging from 200 kWh right up to 30 MWh, with a certificate cap of 10 MWh applied per project.
At this scale, CHB stacking doesn’t come into play, since the federal rebate is designed for much smaller systems. Instead, the value comes from the PDRS certificates themselves, which are generated based on how much the battery reduces demand at system peak times and can be sold or converted into a rebate through an accredited provider. For a business already spending significant money on peak demand charges, a battery sized in the hundreds of kWh to low MWh range can now be justified on the certificate revenue and demand charge savings alone, without needing a household-style rebate to make the numbers work.
Huon Hoogesteger, CEO of Smart Commercial Energy, has pointed to a genuine shift here: for commercial and industrial operators, battery storage has moved into standard capital planning territory alongside solar, rather than being treated as a nice-to-have or an experimental add-on.
The main thing to check at this scale is whether your site needs development approval for a battery of this size, which it typically will. That approval step is also, in practice, a useful filter; it tends to keep lower-quality operators chasing quick rebate money out of the larger end of the market.
What this means for you
If you’re a homeowner, this update probably doesn’t change your calculation much; the CHB rebate is still your main lever. But if you’re on a strata committee, run a small business, or manage a commercial site, this is the first time the economics have stacked in your favour, and it’s worth getting a proper eligibility check rather than assuming the numbers won’t work.
A few practical things to check before signing anything:
- Confirm your installer is CEC-accredited and has direct experience claiming both CHB and PDRS on the same project, since the stacking rules aren’t handled correctly by every installer.
- Ask for the combined rebate figure in writing before you commit, since the sticker price of the system alone won’t tell you the real cost.
- For apartment buildings, check whether your strata scheme is professionally managed or self-managed, as this changes who needs to formally initiate the application.
- For commercial and industrial sites, ask your provider how PDRS certificates will be handled: some offer an upfront discount, others pass through ongoing certificate revenue over time, and the two can have very different cash flow implications.
- Get more than one quote. Because the rebate stacking is still relatively new, quoted savings can vary significantly between installers depending on how well they understand the current rules.
Quick questions answered
Do I need to apply for both rebates separately? No. In most cases, your installer handles both applications as part of the project, though it’s worth confirming this upfront rather than assuming it.
Does my apartment building need an existing battery to qualify? No, in fact the opposite. The apartment rebate stream is specifically for buildings that don’t already have one installed.
Is the 30 MWh cap per site or per business? It applies per project, so a business with multiple large sites could potentially access the scheme at more than one location, though each would be assessed separately.
Can I still access this if I’m renting rather than owning? For households and apartments, eligibility is generally tied to the property owner or owners corporation rather than the tenant, so renters would need the property owner to apply.
Want to know what you’d actually qualify for? Get a personalised battery and solar quote and find out how much of this stacked rebate applies to your building or business.
