WA battery rebate
WA onlyState battery rebates available through Synergy (SWIS region) and Horizon Power (regional WA). Rebate amounts vary based on provider and battery size.
- Synergy customers
- Up to $1,300
- Horizon Power
- Up to $3,800
Up to $8,000+ in solar and battery rebates · Federal rebates step down in 80 daysSee how we calculate this
WA Battery Scheme plus federal Cheaper Home Batteries: combined savings up to $6,384 for Horizon Power customers.
Find out which WA solar rebates you actually qualify for
WA stacks better than most states. Combine federal STCs (about $1,710 on a 6.6kW Perth install, or $3,458 on 13.3kW), the federal battery rebate (about $2,584 on 10kWh), and the WA Residential Battery Scheme worth $1,300 for Synergy customers or $3,800 for Horizon Power customers. Enter your postcode to see your exact entitlement and get matched with one vetted local installer.
Updated May 2026
Check your WA rebates in 60 seconds
Free, no obligation. SAA-accredited installers only. No spam or pushy sales.
- Max state battery rebate
- $3,800
- Solar rebate, 6.6kW Perth
- $1,710
- Federal battery rebate, 10kWh
- $2,584
- Feed-in scheme
- DEBS
Available programs in Western Australia
DEBS feed-in scheme
WA onlyThe Distributed Energy Buyback Scheme (DEBS) pays you for exported solar energy at time-varying rates set by the state government.
- Peak (3pm to 9pm)
- 10c/kWh
- Off-peak (9pm to 3pm)
- 2c/kWh
Federal solar rebate (STCs)
OpenPerth is in STC Zone 3, while regional WA benefits from Zone 2 rates. Combined with state battery rebates, WA offers excellent total incentives.
- 6.6kW system
- $1,710
- 10kW system
- $2,622 to $2,888
- 13kW system
- $3,382 to $3,762
Cheaper Home Batteries program
OpenFederal program providing approximately 30% off eligible battery systems. Can be combined with WA state battery rebates.
- 10kWh battery
- ~$2,584 off
- Plus WA rebate
- +$1,300 to $3,800
- Total savings
- Up to $6,384
How to apply for WA rebates
Check your provider
Work out if you're a Synergy (Perth/SWIS) or Horizon Power (regional) customer to know which state rebates apply.
Get one written quote
Get a written quote from one SAA-accredited (formerly CEC) installer registered with both the federal and WA state rebate programs.
Apply for the state rebate
Apply for your Synergy or Horizon Power battery rebate before installation. Some programs have waitlists.
Confirm federal rebates
Make sure your quote shows the STC and federal battery rebates as point-of-sale discounts.
Complete installation
Have your solar and battery system installed by your approved installer.
Enrol in DEBS
Register for the DEBS feed-in scheme to earn credits for excess solar energy you export.
Stack your rebates: two WA examples
Synergy customers (Perth/SWIS)
- Federal solar rebate (STCs, 6.6kW)
- -$1,710
- Federal battery rebate
- -$2,584
- Synergy battery rebate
- -$1,300
- Total savings
- $5,594
Horizon Power (regional WA)
- Federal solar rebate (Zone 2, 6.6kW)
- -$1,900
- Federal battery rebate
- -$2,584
- Horizon Power rebate
- -$3,800
- Total savings
- $8,284
Regional WA (Horizon Power area) often qualifies for higher solar and battery rebates. Contact your provider for specific eligibility.
See whether you're in Synergy or Horizon Power territory and your real stack. Enter your postcode:
Why 2026 is a good year to install solar in WA
State battery rebates
WA is one of few states with an active state battery rebate: $1,300 to $3,800 on top of the federal rebate.
Federal rebates are decreasing
STCs reduce every 1 January. 2026 offers higher savings than waiting until 2027.
Strong solar conditions
Perth gets exceptional sunshine, so a system generates well year-round.
New WA connection rules from 1 May 2026
The WA Government is updating connection requirements for solar and battery systems on the Western Power network (SWIS) from 1 May 2026. These rules apply to all new and upgraded systems.
What's changing
- Systems up to 30 kVA now allowed under standard connection (covers almost all residential installs).
- All inverters must comply with AS/NZS 4777.2:2020 using “Australia Region B” settings.
- Synergy customers must use the CSIP-AUS communications protocol.
- Systems installed before 1 May 2026 are not affected.
Two export pathways
- With remote disconnection
- Full access to the DEBS feed-in scheme, flexible export limits, and future VPP participation. Your retailer nominates the technical solution.
- Without remote disconnection
- Export capped at 1.5 kW. Simpler setup, but it significantly limits your feed-in earnings. Best paired with a battery to use the excess yourself.
Source: Western Power, EcoGeneration
See your exact WA rebate
Postcode and a couple of quick questions. We'll show you whether you're a Synergy or Horizon Power customer, your federal STC value, the WA Residential Battery Scheme amount and the federal battery rebate. Then match you with one vetted local installer.
Free, no obligation. SAA-accredited installers only. No spam or pushy sales.
Frequently asked questions
What solar rebates are available in WA in 2026?
Western Australia offers state battery rebates ($1,300 to $3,800 through Synergy/Horizon Power), federal STC solar rebate (about $1,710 for 6.6kW in Perth, Zone 3), federal Cheaper Home Batteries program (~30% off), and the DEBS feed-in scheme.
What is the WA battery rebate?
The WA Residential Battery Scheme (launched July 2025) provides: Synergy customers up to $1,300 ($130/kWh up to 10kWh) plus interest-free loans up to $10,000; Horizon Power customers up to $3,800 ($380/kWh up to 10kWh). VPP participation is mandatory. Apply through approved vendors on the Plenti Vendor Directory.
What is the DEBS feed-in scheme in WA?
The Distributed Energy Buyback Scheme (DEBS) is WA's feed-in tariff program that pays you for excess solar energy exported to the grid. Rates vary by time of day, encouraging battery storage and smart energy use.
Can I combine WA state and federal battery rebates?
Yes. WA residents can stack the federal battery rebate (~$2,584 for 10kWh) with WA state rebates ($1,300 to $3,800). Total battery savings: Synergy customers about $3,884; Horizon Power customers about $6,384. This makes WA one of the best battery states.
How much can I save on solar in Perth?
Perth households (Zone 3) typically save about $1,710 on a 6.6kW system through federal STCs in 2026 (5-year deeming period). Adding a 10kWh battery with the federal rebate and the WA Residential Battery Scheme brings total savings to about $5,594 for Synergy customers, or $8,094 for Horizon Power customers.
Am I a Synergy or Horizon Power customer?
Most Perth and South West WA residents are Synergy customers (SWIS network). Regional, remote, and northern WA areas are typically served by Horizon Power. Check your electricity bill or contact your provider.
What are the WA solar connection rules that took effect on 1 May 2026?
Since 1 May 2026, new and upgraded solar or battery systems on Western Power's SWIS network must meet updated connection requirements. Systems up to 30 kVA are allowed under standard connection. All inverters must use AS/NZS 4777.2:2020 Australia Region B settings. You choose between two export options: with remote disconnection (full DEBS access and VPP-ready) or without (capped at 1.5 kW export). Existing systems installed before 1 May 2026 are not affected.
When does the WA solar rebate end?
The federal STC rebate available to WA residents decreases each year and ends after 2030. Each year the deeming period shortens, reducing the number of STCs your system generates. For a 6.6kW system in Perth, expect roughly $342 less in rebate value each year you wait. The WA Residential Battery Scheme runs until its allocated budget is exhausted, so applying sooner is advisable.
In the Perth area? See rebates, costs and grid rules for your city: Solar in Perth