Under the Cheaper Home Batteries Program 2026 rules, eligible households and small businesses can get an upfront discount on a new solar battery. The discount is applied through small-scale technology certificates (STCs), not paid as a cash rebate. If you are planning a solar battery installation, whether you qualify depends on your battery, your installer, your solar system and your installation date.
The program started on 1 July 2025 and changed on 1 May 2026. The Department of Climate Change, Energy, the Environment and Water (DCCEEW) says the STC factor was reduced from that date and that support now tapers as battery size increases. The same battery can therefore attract a different discount depending on its capacity and when it is installed.
This Cheaper Home Batteries Program 2026 guide explains what the program is, how the discount is calculated, which batteries and installations qualify, and what to check before you buy. All figures were checked against Clean Energy Regulator (CER) and DCCEEW material on 20 October 2026.
What Is the Cheaper Home Batteries Program?
The Cheaper Home Batteries Program is an Australian Government program that reduces the upfront cost of installing an eligible small-scale solar battery. It runs under the Small-scale Renewable Energy Scheme (SRES), which the Clean Energy Regulator administers. The same scheme has supported rooftop solar for years.
The government funds the discount by purchasing the STCs created for batteries, according to energy.gov.au. On 13 December 2025 it announced an expansion of the program from an original $2.3 billion to an estimated $7.2 billion over four years. DCCEEW’s current program page shows the settings continuing to 2030.
How Does the Cheaper Home Batteries Program Work in 2026?
An eligible battery system creates STCs when it is installed. The number of certificates depends on the battery’s usable capacity and the STC factor on the installation date. The discount comes off your purchase price through your retailer and installer.
- You choose an eligible battery and a Solar Accreditation Australia (SAA) accredited installer with a battery endorsement.
- The battery and its inverter must be on the Clean Energy Council (CEC) approved lists.
- The installer completes the installation.
- The system creates STCs based on usable capacity, the capacity tiers and the STC factor on the installation date.
- The discount is reflected in your price. Your retailer sets how it appears on your quote.
DCCEEW states that the discount you are entitled to is set by the STC factor on the date the battery is installed. Two changes took effect on 1 May 2026.
| Period | STC factor (per usable kWh) |
|---|---|
| January to April 2026 | 8.4 |
| May to December 2026 | 6.8 |
The factor is scheduled to step down every six months through to 2030. DCCEEW lists 5.7 for January to June 2027, so a battery installed after 1 January 2027 will create fewer certificates than the same battery installed in 2026. Ask your installer which factor applies to your installation date.
Who Is Eligible for the Cheaper Home Batteries Program 2026?
Eligibility covers more than the homeowner. It depends on the premises, the battery, the installer and the solar system.
| Area | What the CER and DCCEEW say |
|---|---|
| Premises | Households, small businesses and community organisations. DCCEEW lists residential and non-residential premises, on-grid and off-grid. |
| Battery size | Between 5 kWh and 100 kWh nominal capacity. |
| Solar | Installed with a new or existing solar PV system of no more than 100 kW. Batteries installed without solar PV that only store grid energy are not eligible. |
| Product | The battery must be new and on the CEC approved battery list. It must meet AS/NZS 5139:2019. |
| Installer | Installed by an SAA accredited installer with a battery endorsement. |
| VPP capability | Grid-connected systems must be technically capable of joining a virtual power plant (VPP). You do not have to join one. |
| Per premises | One solar battery system per premises (per NMI for grid-connected systems). Additional batteries are not eligible after the first claim. |
Portable batteries and electric vehicles are not eligible. The CER also says other inverters on site, such as an existing solar inverter, do not need to be VPP-capable.
Meeting these criteria does not guarantee approval. Check your 2026 battery rebate eligibility with your installer before you commit.
How Much Can Homeowners Receive?
The program does not pay a flat amount or a flat percentage of your bill. The discount comes from the number of STCs your system creates. Four things drive it:
- The usable capacity of the battery, not the nominal capacity.
- The STC factor on the installation date.
- The capacity tier each kilowatt hour falls into.
- The cap of 50 kWh of usable capacity.
DCCEEW’s capacity tiers from 1 May 2026 are:
| Usable capacity band | STC factor applied |
|---|---|
| Up to 14 kWh (inclusive) | 100% |
| Above 14 kWh and up to 28 kWh | 60% |
| Above 28 kWh and up to 50 kWh | 15% |
A battery can be up to 100 kWh nominal, but DCCEEW says only the first 50 kWh of usable capacity attracts STCs.
Using the May to December 2026 factor of 6.8, the certificate count works out as follows. These are arithmetic examples before any rounding, not quotes.
| Usable capacity | Calculation | STCs |
|---|---|---|
| 10 kWh | 10 × 6.8 | 68 |
| 14 kWh | 14 × 6.8 | 95.2 |
| 20 kWh | (14 × 6.8) + (6 × 6.8 × 0.6) | about 119.7 |
The dollar value depends on what the certificates are worth, and that is not the same as the total price of your battery. Your installer’s written quote is the only reliable source for your figure. An installer’s own discount is separate from the government-supported STC discount.
Which Solar Batteries and Installations Qualify?
An eligible battery is a new, CEC-listed unit that meets Australian standards and is installed with solar PV by an accredited installer. The CEC’s product program currently assesses lithium-based batteries only.
- New solar and battery together. Both are installed in the same project.
- Adding to existing solar. Allowed, provided the existing solar PV meets electrical safety and other eligibility requirements. Our guide on adding a battery to an existing solar system covers the practical side.
- Stacked modules. A group of batteries is treated as one system and must meet the 5 kWh minimum and the 100 kWh maximum combined.
- Expanding an existing battery. Allowed if the existing battery has not already claimed STCs. The added capacity must be at least 5 kWh, and the total must not exceed 100 kWh nominal.
- Battery without solar. Not eligible. See whether you can install a home battery without solar.
Check any specific model against the current CEC approved list. A brand name does not make a particular model eligible.
How to Check Eligibility and Claim the Incentive
You do not lodge a separate application. Your retailer and installer handle the STC process, so your job is to ask the right questions before you sign.
- Confirm you have, or will install, an eligible solar PV system of 100 kW or less.
- Ask the installer to confirm their SAA accreditation with a battery endorsement.
- Ask for the battery and inverter model numbers and check them on the CEC approved lists.
- Confirm the system is VPP-capable if it is grid-connected.
- Confirm the usable capacity and ask how the capacity tiers affect your quote.
- Ask which STC factor applies to your expected installation date.
- Ask for the discount shown as a separate line in the written quote, so you can compare quotes fairly.
- Ask about any state-based programs that may apply to your address. Rules differ by state.
Energy.gov.au also says retailers, designers and installers must provide written statements to the consumer confirming key details about the battery and the installation. Keep them with your records. The rebate page explains how rebate checks work with us.
What Should Homeowners Check Before Buying a Solar Battery?
The incentive is one input to the decision. The rest of the decision depends on your home and your goals.
- Your usage. Look at when you use electricity, especially evenings.
- Solar compatibility. Check that your existing solar and inverter suit the battery.
- Usable capacity and power output. Nominal capacity is the headline figure. Usable capacity and power output determine how the battery behaves.
- Backup needs. Not every system provides backup during a blackout.
- Installation location. Placement affects safety and approval, so ask your installer where the battery can go.
- Warranty conditions. Read the terms, including throughput and duration limits.
- Total installed price. Compare quotes on the final price after the discount, not the headline discount.
- Tariffs. Your retail plan and feed-in arrangements affect value. Our comparison of a solar battery versus feed-in tariff helps.
For help matching capacity to your household, see how to choose the right solar battery.
Common Mistakes to Avoid
- Assuming everyone qualifies. Eligibility depends on solar, product, installer and installation.
- Using outdated figures. The factor and tiers changed on 1 May 2026, and the factor keeps stepping down.
- Confusing nominal and usable capacity. The discount is calculated on usable capacity.
- Buying the biggest battery by default. Support tapers above 14 kWh, so the extra capacity must earn its place.
- Not checking the CEC list. Confirm the exact battery and inverter models.
- Comparing headline discounts instead of installed prices.
- Assuming a battery without solar will qualify.
Is It Worth Considering a Solar Battery in 2026?
It can be, depending on your circumstances. A battery may suit you if you already have solar and export a lot of it, use most of your electricity in the evening, or want backup capability. It may be less compelling if your daytime use is high or your solar system is small.
The incentive reduces the upfront price, but it does not decide the value on its own. The size of the battery, your tariff and your usage patterns all matter. A site assessment and a written quote give you real figures to compare.
Key Takeaways
- The Cheaper Home Batteries Program 2026 gives an upfront discount on eligible batteries through STCs under the SRES.
- Batteries must be 5 kWh to 100 kWh nominal, CEC-listed, new and installed by an SAA accredited installer with a battery endorsement.
- A battery must be installed with new or existing solar PV. Grid-only batteries are not eligible.
- Grid-connected systems must be VPP-capable, but you do not have to join a VPP.
- From 1 May 2026 the STC factor is 6.8 for May to December 2026, with tiers of 100%, 60% and 15% across the first 50 kWh of usable capacity.
- The factor is locked by the installation date and keeps stepping down every six months.
- Only one battery system per premises can claim STCs.
Frequently Asked Questions
What is the Cheaper Home Batteries Program?
It is an Australian Government program that lowers the upfront cost of eligible small-scale solar batteries for households, small businesses and community organisations. It works through the Small-scale Renewable Energy Scheme. The government buys the STCs created for batteries, and the discount is applied through your retailer and installer rather than paid as a cash rebate.
Who is eligible for the Cheaper Home Batteries Program in 2026?
Eligibility depends on the battery, the installer and the installation. The battery must be new, between 5 kWh and 100 kWh nominal, and on the CEC approved list. An SAA accredited installer with a battery endorsement must install it with new or existing solar PV. Check your eligibility with an installer before you commit.
Can I get the home battery discount without solar panels?
No. The CER and DCCEEW both state that batteries installed without solar PV, which only store energy from the grid, are not eligible. The battery must be installed with a new or existing solar PV system of no more than 100 kW. If you do not have solar, it can be installed together with the battery.
Does the discount change with battery size and installation date?
Yes. From 1 May 2026, DCCEEW applies the full STC factor to the first 14 kWh of usable capacity, 60% from above 14 kWh to 28 kWh, and 15% from above 28 kWh to 50 kWh. The factor itself is 6.8 for May to December 2026 and steps down every six months.
Do I have to join a virtual power plant to qualify?
No. Grid-connected batteries must be technically capable of participating in a VPP, but the CER does not require you to join one. The VPP requirement applies to the battery and its inverter. Other inverters on site, such as an existing solar inverter, do not need to be VPP-capable.
Can I add a battery to my existing solar system and still qualify?
Yes, if the existing solar PV system meets electrical safety and other eligibility requirements, and the battery and installer meet the program rules. Existing solar does not always need to be replaced. Your installer should confirm the compatibility of your inverter and the battery you are considering.
Next Step
If you want to understand how these rules apply to your home or business, request a solar battery quote and our team will talk you through the options. Eligibility is confirmed against the current program rules and your installation details, and a quote does not guarantee approval.
