Western Australia has the strongest solar and battery rebate stack in the country in 2026. A Perth homeowner installing a 6.6kW rooftop solar system with a 10kWh battery this year can stack a federal STC discount, the new federal Cheaper Home Batteries Program, and the WA Residential Battery Scheme to cut the upfront cost by roughly $7,000 — depending on system size, retailer, and VPP eligibility.
This guide walks through every WA solar rebate currently available, the exact rebate amount you can claim under each scheme, who qualifies, and how to stack them. Worked examples show the real after-rebate purchase price for typical Perth households. Written by Vista Electrical Controls, a CEC-accredited solar retailer based in Canning Vale that has installed batteries across the Perth metro since 2018.
Key Takeaways for Perth Solar Rebates in 2026
- Federal STC rebate (solar panels): still active under the Small-scale Renewable Energy Scheme until 2030. Perth sits in STC Zone 3. A typical 6.6kW solar system attracts an upfront discount of roughly $2,300 through small scale technology certificates STCs.
- Federal Cheaper Home Batteries Program (batteries): launched July 2025. From 1 May 2026 it pays around $272 per usable kWh on the first 14kWh of battery storage, stepping down to ~$163/kWh for 14–28kWh and ~$41/kWh for 28–50kWh. Runs until 31 December 2030.
- WA Residential Battery Scheme: Synergy customers receive $130 per usable kWh up to a $1,300 cap, Horizon Power customers receive $380 per kWh up to a $3,800 cap. Joining a virtual power plant is mandatory.
- WA no interest loan: $2,001 to $10,000 for eligible households earning under $210,000, with 3–10 year flexible terms.
- DEBS feed-in tariff: Synergy pays 10c/kWh peak (3pm–9pm) and 2c/kWh off-peak for excess energy exported. The low off-peak rate is exactly why batteries are now worth installing.
- Payback period: typical Perth solar payback period sits at 4–6 years for solar alone, 6–9 years for a stacked solar plus battery installed in 2026.
Federal Cheaper Home Batteries Program
The Cheaper Home Batteries Program is the federal rebate that changed the maths for residential battery storage. Administered by the Department of Climate Change, Energy, the Environment and Water (DCCEEW) and delivered through the Clean Energy Regulator using small scale technology certificates STCs, the Cheaper Home Batteries Program offers an upfront discount of roughly 30% on the battery purchase cost.
How the Cheaper Home Batteries Program rebate amount is calculated
Each kWh of usable battery capacity generates a set number of STCs. The Clean Energy Regulator deems the value based on a tiered structure that steps down every six months — on 1 May and 1 November each year — until the federal scheme sunsets on 31 December 2030.
From 1 May 2026, the federal battery rebate pays approximately:
- ~$272/kWh for the first 14kWh of useable capacity
- ~$163/kWh for capacity installed between 14kWh and 28kWh
- ~$41/kWh for capacity installed between 28kWh and 50kWh
Values assume an STC clearing price of around $37 per certificate after admin fees. The market price moves, so the rebate amount your installer quotes will reflect the actual clearing price on the day of installation.
Cheaper Home Batteries Program eligibility
To qualify under the federal battery rebate, an Australian household, business or community organisation must meet the following eligibility criteria:
- Battery size between 5kWh and 100kWh nominal capacity
- The battery system must be paired with a new or existing rooftop solar system
- The battery must be on the Clean Energy Council approved product list
- Installed by a Clean Energy Council accredited installer
- Compliant with electrical safety regulations administered by state and territory electrical safety regulators
- The on-grid battery must be virtual power plant capable at installation — though enrolment in a VPP is not required by the federal rebate
The Cheaper Home Batteries Program covers a single battery installation per property and applies to both new installations and battery additions to existing system rooftop solar installations. Eligible batteries must be listed on the Clean Energy Council approved product list, and Vista only quotes batteries connected to current CEC listings to keep customers inside the eligibility window.
WA Residential Battery Scheme
The WA Residential Battery Scheme is a state government initiative funded by the Western Australia government and administered by Energy Policy WA. The WA Residential Battery Scheme runs alongside the federal Cheaper Home Batteries Program and the two rebates can be stacked on the same battery system.
WA battery rebate amount — Synergy customers vs Horizon Power
The rebate amount depends on which electricity retailer services your property:
- Synergy customers (Perth metro and South West): $130 per usable kWh, capped at $1,300 (a 10kWh battery hits the cap)
- Horizon Power customers (regional WA): $380 per kWh, capped at $3,800
The Horizon Power rebate is roughly three times the Synergy rate because regional WA grids run on a higher generation cost and battery storage relieves more grid stress per kWh installed.
WA Residential Battery Scheme eligibility requirements
- Australian permanent resident
- Synergy or Horizon Power electricity retailer customer
- Standalone home or unit-titled property with all necessary council approvals
- Mandatory enrolment in a virtual power plant VPP — this differs from the federal rebate, where VPP-capable hardware is enough
- Battery on the Clean Energy Council approved product list with a CEC accredited installer
- From 1 May 2026, systems must comply with the WA Government’s updated technical capability requirements
WA no interest loan for batteries
Households earning under $210,000 gross can also access an interest free loan between $2,001 and $10,000 to cover the remaining purchase cost after rebates. Loan terms run 3–10 years with no early repayment fees, administered by Plenti on behalf of the WA government. The loan amount is independent of the rebate cap, so a $13,000 battery can be paid down across a decade with no interest after the rebate is applied at point of sale.
Federal Solar Panel Rebate (SRES)
The Small-scale Renewable Energy Scheme (SRES) is the federal solar panel rebate that has subsidised rooftop solar in Australia since 2011. It is administered by the Clean Energy Regulator and remains the main solar rebate small scale component most Perth households claim.
How SRES STCs work in Perth
Installing eligible solar PV generates small scale technology certificates STCs. The quantity is calculated from three inputs: system size in kW, deeming zone (Perth is STC Zone 3), and remaining years until the scheme ends in 2030. For a system installed in 2026, the deeming period is 5 years.
The market value of STCs creates an upfront discount on the solar system cost. A reputable solar retailer like Vista calculates the STC value at point of sale and offers a discount on the day, handling the small scale technology certificate creation paperwork through the REC Registry.
Example STC rebate value for a 6.6kW Perth solar system in 2026
A 6.6kW rooftop solar system installed in Perth in 2026 generates approximately 62 STCs. At a $37 clearing price, that produces an upfront discount of roughly $2,300 on the purchase price. The federal rebate value drops on 1 January each year as the deeming period shortens, so installing earlier in the year captures more value from the small scale technology certificates STCs allocation.
WA Distributed Energy Buyback Scheme (DEBS)
DEBS is the WA feed-in tariff that pays Synergy customers for excess energy exported to the grid from rooftop solar systems. The buyback rate is time-of-day weighted:
- Peak (3pm–9pm): 10c/kWh
- Off-peak (all other times): 2.0c/kWh
This is why battery storage now beats pure solar export for most Perth homes. At a retail electricity rate of around 30c/kWh, every kWh of solar generation a battery captures and uses at night is worth 28c more than exporting it for the 2c off-peak rate. The falling battery costs of 2025–2026, combined with the federal and state rebates, cut electricity bills harder than at any point since the original feed-in tariffs ended.
Switch Your Thinking Program (Local Government Rebates)
Several Perth councils participate in the Switch Your Thinking Program, which offers local government solar discounts on sustainable products. Discounts vary by council but typically cover 5–10% off solar batteries, hot water heat pumps, and solar pool pumps when bought through participating retailers. Participating councils across Perth include City of Joondalup, City of Wanneroo, City of Stirling, City of Swan, City of South Perth, and Town of Victoria Park.
Worked Example: 6.6kW Solar + 10kWh Battery in Perth (2026)
This is a typical Perth household install Vista quotes weekly. The figures below assume install in mid-2026, Synergy connection, and Tier 1 hardware:
- System retail price (6.6kW solar + 10kWh LFP battery, fully installed): $16,500
- Federal STC rebate (SRES, ~62 STCs × $37): –$2,300
- Federal Cheaper Home Batteries Program (10kWh × ~$272): –$2,720
- WA Residential Battery Scheme (Synergy customer, capped at $1,300): –$1,300
- Net upfront cost after stacked rebates: ~$10,180
That’s a 38% reduction on the purchase cost. If the household qualifies for the WA no interest loan, the remaining $10,180 can be repaid across 5–10 years with no interest, bringing the effective monthly cost below typical electricity bills savings from the system. Payback period for the combined install lands at around 6–8 years assuming current retail electricity rates and Synergy peak/off-peak DEBS pricing.
Households installing larger system sizes — for example 10kW solar plus a 20kWh battery on a 3-phase property — claim more federal Cheaper Home Batteries Program rebate (the first 14kWh attracts the higher $272/kWh tier, then 6kWh at $163/kWh) but hit the $1,300 Synergy cap on the WA portion. The net rebate-to-system-cost ratio is highest on systems sized between 6.6kW solar and 10kWh battery, which is why Vista quotes that configuration as the default for most Perth single-phase homes.
Application Process & What to Expect
Stacking rebates is process-heavy but most reputable solar retailers handle the paperwork for you. The typical sequence is:
- Get a quote that itemises every rebate separately. If a quote lumps “rebates” into a single line, ask for the breakdown — you should see federal STC, federal Cheaper Home Batteries Program, and WA Residential Battery Scheme as distinct items.
- Confirm the battery is on the Clean Energy Council approved product list. Eligible batteries must also be virtual power plant capable per the federal rebate rules.
- Sign the VPP contract with your chosen Synergy or Horizon Power VPP product before installation if you are claiming the WA rebate. Without this contract, the state rebate is invalidated.
- Installation by an accredited installer holding both Clean Energy Council accreditation and Solar Accreditation Australia membership.
- Your installer claims the STCs through the REC Registry and applies the federal rebate as an upfront discount at point of sale.
- The WA rebate is paid into the customer’s nominated account after the installation is verified and the VPP enrolment is active. Allow 6–10 weeks.
Solar Retailer Code of Conduct & Electrical Safety
Choosing the right solar retailer matters as much as picking the right hardware. The Clean Energy Council’s New Energy Tech Approved Seller program (formerly Solar Retailer Code of Conduct) is the baseline trust signal — every approved solar retailer agrees to fair sales practice, transparent quoting, and warranty handling.
Electrical safety is non-negotiable. Solar PV and battery installations interact with your home’s switchboard, the Western Power distributed energy resources network, and grid-protection systems. Every install must be signed off by an electrician holding the relevant licence under the state and territory electrical safety regulators. Vista Electrical Controls holds full WA Electrical Contractor licensing alongside CEC accreditation — the combined credential set is what state and territory governments require for rebate-eligible work.
Tips to Maximise Your Solar Investment in Perth
Right-size the solar system to your energy usage
Oversizing wastes money — the DEBS off-peak rate of 2c/kWh means excess energy exported during daytime hours has very low return. Right-sized solar plus a correctly sized battery captures more value than a larger system without storage. Vista typically recommends 6.6–8kW solar for single-phase homes and 10kWh+ batteries where evening electricity costs dominate the bill.
Match battery size to evening load, not panel output
The battery’s usable capacity should cover your typical 4pm–11pm consumption. Sizing it to “fully absorb daily solar generation” usually overbuilds. For most Perth households, 10–15kWh of usable battery capacity is the sweet spot. A larger system (20kWh+) makes sense only on 3-phase properties with high evening loads or all-electric homes without gas.
Don’t skip the VPP contract if claiming the WA rebate
The WA Residential Battery Scheme requires real VPP enrolment, not just VPP-capable hardware. Dispatch events are infrequent (typically 10–30 per year), each lasts 1–2 hours, and your battery is never fully drained by VPP operation. Refusing the VPP component to keep the battery “yours alone” forfeits $1,300 of rebate.
Watch the federal rebate step-down dates
The federal Cheaper Home Batteries Program rebate steps down on 1 May and 1 November each year. Installing in April or October captures the higher rate. By 1 January 2027, the per-kWh value drops to roughly $213 — about a $590 difference on a 10kWh battery installed before vs after the cutoff.
How Vista Electrical Controls Helps
Vista has installed batteries across Perth metro since 2018, from coastal homes in Sorrento to Swan Valley properties in Ellenbrook. As a CEC accredited installer and full-service solar retailer, we:
- Calculate every rebate (federal STC, federal Cheaper Home Batteries Program, WA Residential Battery Scheme, council Switch Your Thinking) and apply them as a single upfront discount on the quoted purchase price
- Handle all paperwork — STC certificate creation through the REC Registry, VPP enrolment, Synergy submission, no interest loan referral if eligible
- Only quote eligible batteries — Sigenergy, BYD, Sungrow, GoodWe and iStore that sit on the Clean Energy Council approved product list with confirmed virtual power plant capability
- Provide post-install support including monitoring app setup and warranty service handled locally, not via interstate call centres
For Perth homeowners installing solar batteries on a new or existing solar battery system in 2026, the Australian government’s stacked rebate framework — the federal Cheaper Home Batteries Program plus the WA Residential Battery Scheme — has fundamentally shifted the maths. A correctly sized solar system generates surplus energy across the day that the battery stores for the 4pm–9pm peak demand window, when Synergy retail rates are highest and DEBS off-peak buyback is lowest. That is why properly sized battery storage now beats simply oversizing solar panels for export.
Frequently Asked Questions
Is the WA solar battery rebate worth it in 2026?
Yes — particularly for Synergy customers in Perth. Stacking the federal Cheaper Home Batteries Program rebate with the WA Residential Battery Scheme rebate and an interest free loan typically reduces battery purchase cost by 35–45%. Combined with DEBS off-peak buyback at just 2c/kWh, the payback period on a battery installed in 2026 is the shortest it has ever been in WA.
Can I claim both the federal Cheaper Home Batteries Program and the WA Residential Battery Scheme?
Yes. The federal rebate and the WA state rebate are designed to stack. The federal Cheaper Home Batteries Program applies an upfront discount via STCs, then the WA Residential Battery Scheme pays the remaining state rebate amount into the customer’s account post-installation. Synergy customers in Perth get both; Horizon Power customers in regional WA get the higher state rate plus the federal rebate.
Do I have to join a virtual power plant to get the rebate?
The answer differs by scheme. The federal Cheaper Home Batteries Program requires the battery to be VPP-capable at installation, but you do not need to enrol in a VPP to receive the federal rebate. The WA Residential Battery Scheme is different — it mandates active VPP enrolment, including signing a VPP contract with your Synergy or Horizon Power VPP product, before installation.
What is the cheapest solar battery in Australia after rebates?
Entry-level 10kWh batteries from BYD or GoodWe Lynx start around $11,000 fully installed before rebates. After stacking the federal Cheaper Home Batteries Program (~$2,720) and the WA Residential Battery Scheme ($1,300 for Synergy customers), the net purchase price drops to around $7,000 — though final pricing depends on inverter compatibility and switchboard works needed.
Can I add a battery to my existing solar system?
Yes. AC-coupled batteries like the GoodWe Lynx, iStore, and Sigenergy SigenStor are designed for retrofit installs on an existing system. Your existing solar inverter stays in place and the AC-coupled battery sits alongside it. DC-coupled batteries like the SolarEdge Home Battery require matching SolarEdge inverters, so suit new installations or full inverter swap-outs.
What is the WA solar feed-in tariff in 2026?
Synergy’s Distributed Energy Buyback Scheme (DEBS) pays Synergy customers 10c/kWh for solar excess exported during peak hours (3pm–9pm) and 2c/kWh for excess energy exported off-peak. Horizon Power’s regional feed-in rate differs by region and can be checked directly with Horizon Power.
How long does the WA Residential Battery Scheme last?
The WA scheme is currently uncapped on participants but operates as a first-come, first-served allocation. Funding tranches are announced annually by the Western Australia government. The federal Cheaper Home Batteries Program runs until 31 December 2030, stepping down every six months.
What is the difference between nominal capacity and usable capacity?
Nominal capacity is the total energy stored in the battery cells; usable capacity is what you can actually draw out. For LFP batteries (the chemistry recommended for Perth heat), useable capacity is typically 90–100% of nominal. The federal Cheaper Home Batteries Program calculates rebate amount based on usable battery capacity — not nominal — which is why two batteries with the same advertised “kWh” can attract different rebate values.
Can I claim rebates on a solar battery without solar panels?
The federal Cheaper Home Batteries Program requires the battery to be paired with a new or existing rooftop solar system. The WA Residential Battery Scheme has the same requirement. Standalone battery installations without solar are not eligible for either rebate.
Who do I contact if my installer claims the wrong rebate amount?
The Clean Energy Regulator is the federal authority overseeing STCs and the Cheaper Home Batteries Program. The WA Department of Energy, Mines, Industry Regulation and Safety oversees the state battery scheme. The New Energy Tech Approved Seller program through the Clean Energy Council handles complaints about approved solar retailers in dispute resolution. Most issues can be resolved by asking your installer for a written itemised quote that separates each rebate.
Ready to Maximise Your Solar Savings in Perth?
Get an itemised quote from Vista Electrical Controls that breaks down every rebate you can claim in 2026 — federal STC, Cheaper Home Batteries Program, WA Residential Battery Scheme, and any council Switch Your Thinking discounts. As a Canning Vale-based CEC accredited installer with full Western Australia coverage, we handle the entire paperwork stack so you receive every dollar of solar rebate available. Call 1300 181 116 or request a free quote online.