Western Australian households can still reduce the upfront cost of solar and battery storage in 2026 through a mix of federal and state incentives. The main WA Solar Rebates include federal Small-scale Technology Certificates (STCs), the WA Residential Battery Scheme and the Cheaper Home Batteries Program. WA households may also benefit from the Distributed Energy Buyback Scheme (DEBS), while eligible battery customers can access a state rebate and, in some cases, a no-interest loan.

This guide explains the current western australia solar rebates, who may qualify and how the available incentives can work together.

Available WA Solar Rebates & Incentives

Here’s an overview of the main rebates, tariffs and incentives available in 2026 for Western Australians.

The WA scheme is still open, with state battery rebates capped at $1,300 for Synergy customers and $3,800 for Horizon Power customers.

Note: The federal solar rebate reduces each year as the SRES approaches its scheduled end in 2030. Systems installed in 2026 use a 5-year deeming period, falling to four years from 1 January 2027.

Example Savings — 6.6 kW Solar System in WA

A 6.6kW system is a common choice for Perth households. The current solar power rebate wa comes through federal STCs rather than a separate WA Government solar-panel cash rebate. The final value of the wa solar panel rebate depends on the STC market value when the certificates are assigned. Aussie Solar Tech currently lists its standard 6.6kW package from $3,999 after the STC incentive.

Solar + Battery Rebate Stacking in WA 2026

The table below shows how the federal Cheaper Home Batteries Program and the WA Residential Battery Scheme can work together to reduce the upfront cost of an eligible home battery.

• Scenario: Adding a 10kWh usable battery to a home in the Perth metro area (Synergy network)
• Assumed Battery Market Price: ~$11,500 installed, before rebates
• Federal Battery Support: A 10kWh battery installed between 1 May and 31 December 2026 can generate 68 STCs under the current 6.8 factor.

Note: This is an example only. Battery prices, STC values and final loan amounts can vary. Loan approval is subject to eligibility and credit assessment.

Combined Solar + Battery System (New Install)

If you are buying a complete system (6.6kW Panels + 10kWh Battery) at the same time, the rebates stack even further.

Component	Est. Retail Price	Rebates Applied	Net Cost
6.6kW Solar Panels	~$8,000	-$2,100 (Solar STC Rebate)	$5,900
10kWh Battery	~$11,500	-$4,740 (Fed + State Rebates)	$6,760
Total System Cost	~$19,500	-$6,840 (Total Savings)	~$12,660

Key Takeaway: You could effectively get a complete Solar + Battery system for the price of just a battery a few years ago.

WA Residential Battery Rebate & Loan Scheme

The WA Residential Battery Scheme is open in 2026 and provides eligible households with a state wa battery rebate, with no-interest finance also available to qualifying applicants.

The state rebate can be combined with the federal Cheaper Home Batteries Program, allowing eligible households to reduce battery costs through both state and federal support. The WA scheme is currently expected to remain available until the planned allocation of 100,000 rebates is used.

1. The Two Parts of the WA Scheme

This scheme is split into two components: a Rebate (free money) and a Loan (interest-free money). You can apply for one or both.

Part A: The Cash Rebate

This is a direct deduction from the cost of your battery, paid to your installer, to reduce your invoice. The amount depends on your electricity provider.

Provider	Rebate Rate	Max Rebate (Cap)	Target Audience
Synergy	$130 per kWh	$1,300 (for 10kWh+)	Perth & South West WA
Horizon Power	$380 per kWh	$3,800 (for 10kWh+)	Regional & Remote WA

Requirement: To get this rebate, you must connect your battery to a Virtual Power Plant (VPP) for a minimum of 2 years.

Part B: The Interest-Free Loan

Eligible households can also apply for a no-interest loan to help cover qualifying battery and installation costs.

• Loan amount: $2,001 to $10,000
• Interest rate: 0%
• Loan term: 3 to 10 years
• Income limit: Household gross annual income must be below $210,000

For example, if the remaining eligible cost in the 10kWh Synergy example is around $7,480, spreading that amount over 10 years would be about $62 per month, subject to loan approval and final terms. The loan can also help cover eligible solar panels or inverter upgrades when they are installed as part of a qualifying battery package.

2. How to “Stack” with the Federal Program

The WA rebate can be combined with the federal Cheaper Home Batteries Program.

For a 10kWh usable battery installed from 1 May to 31 December 2026, the federal program provides 68 STCs before the dollar value of those certificates is applied. A Synergy customer may then receive an additional $1,300 WA rebate, while a Horizon Power customer may receive up to $3,800.

The exact combined discount depends on the STC market value, so it is better to check the final rebate amounts shown in your quote rather than rely on older fixed $5000 or $7,500 figures. Federal battery support changed from 1 May 2026.

3. Eligibility Checklist

To qualify for the WA Residential Battery Scheme:

• Battery Capacity: At least 5kWh usable capacity
• Electricity Provider: You must be a Synergy or Horizon Power customer
• VPP Participation: You must join an eligible VPP product
• Approved Equipment: The battery and inverter must meet the relevant supported-product requirements
• Approved Vendor: Installation must be arranged through a vendor accredited under the WA scheme
• Installer: The battery installer must hold the required Solar Accreditation Australia grid-connected battery accreditation
• Income: The $210,000 household income limit applies to the no-interest loan, not the standard battery rebate
• Property: The battery must be installed at an eligible residential property in Western Australia

The state rebate applies to new eligible batteries and cannot be claimed retrospectively for purchases made before the scheme commenced.

4. How to Apply

You generally do not apply directly to the WA Government for the rebate. Your approved vendor submits the application on your behalf.

1. Check Eligibility: Confirm your property, battery and VPP meet the scheme requirements.
2. Choose an Approved Vendor: Get a quote for an eligible battery system.
3. Review the Rebates: Check that the WA rebate and federal battery discount are clearly shown.
4. Apply for the Loan if Needed: Your vendor starts the process with Plenti, and Plenti contacts you to complete the required checks.
5. Install the System: Once the required approval is in place, the vendor completes the installation and scheme documentation.

Approved WA rebate and loan funds are paid directly to the accredited vendor.

Federal Solar Rebate: Small-scale Renewable Energy Scheme (SRES)

The Federal Solar Rebate or Small-scale Renewable Energy Scheme (SRES), reduces the upfront cost of eligible rooftop solar systems through Small-scale Technology Certificates (STCs). The number of STCs depends on the system size, location and installation year, with most customers receiving the value as an upfront discount through their retailer or installer.

For systems installed in 2026, the deeming period is 5 years. A typical 6.6kW solar system in Zone 3 may generate around 45 STCs, while the final value of the solar power rebate wa depends on the STC market price.

Eligibility Criteria:

• System Size: Eligible solar PV systems can be up to 100kW.
• Approved Products: Panels and inverters must meet current approved-product requirements.
• Accredited Installer: Installation must be completed by an appropriately accredited SAA professional.
• Timing: The system and equipment must meet current SRES eligibility requirements.

How to Apply:

Most customers do not need to create or sell STCs themselves. The right to create the certificates is usually assigned to the retailer or registered agent in exchange for an upfront discount.

• Official Information & Regulator:Clean Energy Regulator (SRES)
• Find an Accredited Installer: Solar Accreditation Australia (SAA)

Distributed Energy Buyback Scheme (DEBS)— Feed-in Tariffs

The Distributed Energy Buyback Scheme (DEBS) is Western Australia’s solar feed-in tariff system. Unlike older schemes that paid a flat rate for exported power, DEBS uses a “time-of-export” structure. This is designed to encourage households to consume their own solar power during the day (when the grid is flooded with cheap energy) and export it during the evening peak (when the grid actually needs it).

Under DEBS, you are paid a premium rate for electricity sent back to the grid between 3 pm and 9 pm, and a lower rate at all other times.

Current DEBS Buyback Rates (Synergy)

Time of Export	Rate per kWh	Strategy
Peak (3 pm – 9 pm)	10 cents	Export stored battery power now to earn max credit.
Off-Peak (All other times)	2 cents	Do not export. Self-consume the power (e.g., run AC or laundry) or store it in a battery.
Note: Horizon Power rates vary by region but follow a similar peak/off-peak structure.

Eligibility Criteria

To qualify for DEBS, you generally must:

• Be a residential, non-profit, or educational customer.
• Have a solar inverter capacity of 5kW or less (a 6.6kW panel system with a 5kW inverter is eligible).   
• Note: If you install a battery or EV charger, there is no cap on the battery size; only the export limit applies.

How to Apply

For most homeowners, you do not need to apply manually—your solar installer applies on your behalf when they apply for grid connection approval.

However, if you are upgrading an existing system or switching from the old REBS scheme, you can apply directly:

• Synergy Customers (Perth/SWIS):
  • Apply Here: Synergy Distributed Energy Application
• Horizon Power Customers (Regional WA):
  • Apply Here: Horizon Power Solar & Battery Applications

Switch Your Thinking Program

The Switch Your Thinking program works with local governments and businesses across the Perth region to offer discounts on sustainable products and services. Current Rewards for Residents offers can include solar, batteries, EV charging, insulation and other home-efficiency products. Discounts and participating suppliers can change, so residents should check the current offers before purchasing.

Eligibility Criteria

You need to live within a participating local government area and use a participating supplier listed under the relevant offer.

How to Apply

1. Visit the Rewards for Residents page.
2. Select the product or service you are interested in.
3. Follow the listed supplier instructions to claim the available discount.

Local & Council-level Incentives — City of Perth Sustainability Incentives

The City of Perth currently offers grants for eligible residential strata buildings and student, aged and supported accommodation to improve energy efficiency and environmental performance.

Residential Energy Upgrade Grant

This matched-funding program can support projects such as solar PV, battery storage, electrification and EV charging infrastructure in common areas or where the project provides a communal benefit.

The City provides matched funding of up to 50% of the total eligible project cost.

Residential Sustainability Assessment Grant

Eligible buildings can receive up to $12,000 towards a comprehensive sustainability assessment. The grant can cover up to 100% of the eligible assessment cost, within the $12,000 limit. Both 2026–27 programs are currently open, with applications scheduled to close on 31 March 2027, or earlier if available funding is exhausted.

How to Apply

These grants operate on a “first-come, first-served” basis until the budget runs out for the financial year.

1. Check Eligibility: Your building must be a residential strata title within the City of Perth boundaries.
2. Get Quotes: You usually need at least one valid quote for the works (or assessment).
3. Apply Online: Submit via the SmartyGrants portal.

• Apply & Guidelines: City of Perth Sponsorship & Grants

Essential Considerations & What to Watch Out For

When considering solar and battery incentives in Western Australia, keep these key points in mind:

1. Eligibility: Ensure your system meets the specific requirements for each rebate, such as system size and installation by approved vendors.
2. Upfront Costs: While rebates reduce costs, understand your out-of-pocket expenses and financing options, such as no-interest loans.
3. System Size: Rebate amounts depend on system size; verify that your battery or solar capacity meets program limits.
4. Maintenance: Consider long-term maintenance and warranty terms, as solar and battery systems degrade over time.
5. VPP Participation: The WA Residential Battery Scheme requires eligible customers to join a Virtual Power Plant (VPP) product.
6. Export Rates: DEBS offers higher export rates during peak hours (3–9 pm), so plan your energy use accordingly.
7. Program Deadlines: Apply early, as funding for programs like the WA Residential Battery Scheme and local grants may be limited.

Make sure to review all terms to benefit from available incentives fully.

FAQs About WA Solar Rebates

Is there a state rebate for solar panels in WA?

No — WA does not offer a dedicated state rebate for solar panels. Instead, you can rely on the national Small‑scale Renewable Energy Scheme (SRES), which provides upfront discounts through Small‑scale Technology Certificates (STCs).

What is the SRES rebate, and how does it work?

Under the SRES, eligible rooftop solar systems (up to 100 kW) generate Small‑scale Technology Certificates, which installers redeem to lower the upfront cost of solar installation.

Are there rebates available for home battery storage in WA?

Yes. The WA Residential Battery Scheme is open and offers eligible households up to $1,300 for Synergy customers or $3,800 for Horizon Power customers. Eligible systems may also receive federal support through the Cheaper Home Batteries Program. 

How much rebate can I get under the WA Battery Scheme?

Synergy customers can receive $130 per usable kWh up to $1,300, while Horizon Power customers can receive $380 per usable kWh up to $3,800. The wa battery rebate can be combined with the federal battery incentive, but the final combined amount depends on usable capacity, installation date and STC market value.

Is there a loan option to help cover the upfront cost?

Yes — the scheme offers interest-free loans up to $10,000 to eligible households for battery (or battery + solar/inverter) installations.

What solar power rebates WA homeowners can access in 2026?

Eligible homeowners may access federal solar STCs, the federal Cheaper Home Batteries Program, the WA Residential Battery Scheme, DEBS export credits and some local council incentives. For anyone comparing solar rebates western australia, eligibility depends on whether the installation is solar-only, battery-only or a combined solar and battery system.

What are the eligibility requirements for the battery rebate/loan?

To be eligible, you must be a resident in WA and a customer of Synergy or Horizon Power. The battery must be new (not second-hand) and have a usable capacity of at least 5 kWh. Installation must be by an Approved vendor/installer, and participation in a Virtual Power Plant (VPP) may be required.

Final Thoughts

The WA Solar Rebates available in 2026 can still reduce the upfront cost of solar and battery storage, but the support comes from several different programs rather than one single rebate. For rooftop solar, the main wa solar rebate is the federal SRES and STC discount. Battery owners may be able to combine the wa battery rebate with the federal Cheaper Home Batteries Program, while eligible households can also apply for a no-interest loan of up to $10,000. The value of solar rebates wa depends on system size, installation date, location and eligibility, so always check the current rebate amounts before accepting a quote.

Aussie Solar Tech can help you compare eligible solar and battery options, understand the available incentives and choose a system that suits your energy needs.

Ready to get started? Contact Aussie Solar Tech for a tailored solar or battery quote