WA Solar Rebate 2026
Solar Rebates & Incentives 2026
Western Australia offers state battery rebates of $1,300-$3,800 through Synergy and Horizon Power, plus the DEBS scheme for distributed energy exports.
Available Programs in Western Australia
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.
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.
Federal Solar Rebate (STCs)
ActivePerth is in STC Zone 3, while regional WA benefits from Zone 2 rates. Combined with state battery rebates, WA offers excellent total incentives.
Cheaper Home Batteries Program
ActiveFederal program providing approximately 30% off eligible battery systems. Can be combined with WA state battery rebates.
How to Apply for WA Rebates
Check Your Provider
Determine if you're a Synergy (Perth/SWIS) or Horizon Power (regional) customer to know which state rebates apply.
Get Approved Installer Quotes
Compare quotes from SAA-accredited (formerly CEC) installers registered with both federal and WA state rebate programs.
Apply for State Rebate
Apply for your Synergy or Horizon Power battery rebate before installation. Some programs have waitlists.
Confirm Federal Rebates
Ensure your quote shows 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 for Maximum Savings
Synergy Customers (Perth/SWIS)
Horizon Power (Regional WA)
*Regional WA (Horizon Power area) often qualifies for higher solar and battery rebates. Contact your provider for specific eligibility.
Why Install Solar in WA in 2026?
State Battery Rebates
WA is one of few states with active state battery rebates. Don't miss out on $1,300-$3,800 extra savings.
Federal Rebates Decreasing
STCs reduce every January 1st. 2026 offers higher savings than waiting until 2027.
Perfect Solar Conditions
Perth gets exceptional sunshine. Solar systems generate maximum power 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
Full access to DEBS feed-in scheme, flexible export limits, and future VPP participation. Your retailer nominates the technical solution.
Export capped at 1.5 kW. Simpler setup but significantly limits your feed-in earnings. Best paired with a battery to self-consume excess.
Source: Western Power, EcoGeneration
Calculate Your WA Savings
Combine federal rebates with WA's state battery incentives. Perth households can save $7,000+ on battery systems.
Check My Rebatesarrow_forwardFrequently Asked Questions
What solar rebates are available in WA in 2026?
Western Australia offers state battery rebates ($1,300-$3,800 through Synergy/Horizon Power), federal STC solar rebate ($2,200-$2,600 for 6.6kW), 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 (~$3,000 for 10kWh) with WA state rebates ($1,300-$3,800). Total battery savings: Synergy customers $4,300-$5,000; Horizon Power customers $6,800-$7,500. This makes WA one of the best battery states.
How much can I save on solar in Perth?
Perth households (Zone 2) typically save $1,600 on a 6.6kW system through federal STCs in 2026 (5-year deeming period). Adding a battery with combined federal and WA state rebates brings total savings to $5,600-$7,500.
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 new WA solar connection rules from May 2026?
From 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 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 $400 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.