WA Solar Battery Rebate & Interest-free Loans | Ultimate Guide (2025)

WA BATTERY REBATE SCHEME

Western Australia’s Residential Battery Scheme launches by 1 July 2025, offering rebates of up to $7,500 and no-interest loans to support home energy storage. Here’s how to qualify, maximise your savings, and prepare early.

Overview of the WA Home Battery Rebate Program

The WA Government has committed $387 million to help households install battery storage systems. Under the Residential Battery Scheme, eligible homeowners on the Synergy and Horizon Power networks can access:

  • Up to $5,000 rebate for Synergy customers ($500/kWh for up to 10 kWh)
  • Up to $7,500 rebate for Horizon Power customers ($750/kWh for up to 10 kWh)
  • Interest-free loans up to $10,000 for low-to-middle income households

The rebate is expected to be delivered as an upfront discount. You are not limited to a 10kWh battery, but rebates apply only to the first 10kWh of capacity.

But funding is limited. Only 20,000 households across WA — from over 900,000 dwellings — are expected to benefit in the initial rounds:

  • 19,000 rebates for Synergy customers
  • 1,000 rebates for Horizon Power customers

Acting early significantly improves your chance of accessing the scheme.

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Battery Rebate Amounts: Breakdown by Provider

Customer TypeRebate Per kWhMax CapacityMax RebateTotal Households
Synergy (Metro & SW WA)$50010kWh$5,00019,000
Horizon Power (Regional WA)$75010kWh$7,5001,000

Why Are Horizon Customers Getting More?

Sofar battery installation case study in australia

Horizon Power services regional and remote WA, where electricity infrastructure is more expensive and less reliable. Higher rebates reflect the greater cost of batteries in these off-grid or microgrid locations, offering improved energy security and cost savings.

What Can the Interest-Free Loan Cover?

Alongside rebates, the scheme includes means-tested loans to help eligible households afford a system. These loans can be used for:

  • Battery-only systems
  • Combined solar + battery packages
  • New or replacement solar panels (only when bundled with a battery)

Interest-Free Loan Details

  • Amount: $2,000 – $10,000
  • Term: Up to 10 years
  • Eligibility: Income-tested (criteria pending)

The rebate is not income-tested, meaning any eligible household can apply — but loans will only be available to lower- and middle-income earners.

Eligibility: Who Can Apply?

To qualify for the scheme, applicants must:

  • Be a resident of Western Australia
  • Be a customer of Synergy or Horizon Power
  • Install new equipment only — second-hand systems are not eligible
  • Install a VPP-ready battery system with at least 5kWh usable storage
  • Use a WA-based accredited retailer or installer
  • Meet all technical, safety, and warranty standards (TBC)

Also eligible:

  • Home businesses
  • Landlords, if they provide proof of a long-term tenancy agreement

Not eligible:

  • Government-owned properties
  • Financial institutions, telcos, and resource companies

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You do not need to join a VPP to qualify — only VPP capability is required.

What Does VPP-Ready Mean

A Virtual Power Plant (VPP)-ready battery must:

  • Be connected to the internet
  • Be able to respond to signals from the grid
  • Support future participation in energy-sharing networks

This ensures batteries can help stabilise WA’s power grid in real time.

How the Rebate Scheme Will Roll Out

  • The scheme will be rolled out in multiple rounds, beginning by 1 July 2025
  • A third-party program administrator will manage applications and compliance
  • Retailers will be required to publish pre-rebate pricing for transparency
  • Participating installers will undergo ongoing audits to ensure quality and compliance

How to Prepare for the WA Battery Rebate

Rebate demand will likely exceed supply. Follow these steps to be installation-ready before the rush.

1. Install Solar (or Plan to Bundle)

Homes with existing solar will be in a stronger position to qualify. If you don’t already have panels, install them now or bundle them with a battery to maximise savings.

  • Homes with existing solar are more rebate-ready
  • Bundling solar and batteries can maximise savings

2. Choose a Hybrid Inverter

A hybrid inverter supports both solar input and future battery integration. It simplifies system expansion and avoids delays tied to grid approval.

  • Hybrid inverters simplify battery integration
  • DC-coupled setups can fast-track approval and installs

3. Pre-Order Your Battery

To secure stock and fast-track compliance, pre-order your battery in advance. With only 20,000 rebates available, early preparation ensures you’re at the front of the line.

  • With only 20,000 spots available, early pre-ordering secures stock

4. Work With a Trusted WA Installer

The rebate requires WA-based installers — but a local company also offers:

  • Faster turnaround
  • Localised aftercare and warranty support
  • Knowledge of WA compliance standards

Avoid national operators chasing rebate programs. Choose a provider with proven experience in WA.

Battery Cost Tip: Compare Value by Cost-per-kWh

When selecting a battery, don’t focus only on price. Cost-per-kWh helps you understand the real value.

For example:

  • A 10kWh battery costing $5,000 = $500 per kWh
  • A 5kWh battery costing $7,500 = $1,500 per kWh

A lower cost-per-kWh generally means better long-term value — especially when paired with a strong performance warranty.

The Federal Solar Rebate Still Applies

The Small-scale Renewable Energy Scheme (SRES) can reduce solar panel costs by thousands. While it steps down slightly each year, it remains a major saving — and can be used in addition to the WA battery rebate.

Why You Shouldn’t Wait

Delaying installation until the scheme launches may cost you more:

  • Higher power bills in the meantime
  • Price hikes due to increased demand
  • Longer installation wait times
  • Limited stock of quality batteries and hybrid inverters

Installing a hybrid system now locks in immediate solar savings — and positions you to claim the battery rebate as soon as it opens.

Combining the WA and Federal Solar Battery Rebates?

Yes — potentially.

Eligible Western Australian households may be able to combine both the WA Home Battery Rebate and the Australian Governments Federal Solar Battery Rebate to significantly reduce the cost of installing a home battery system.

What Is the Federal Solar Battery Rebate?

The Federal Government’s Cheaper Home Batteries Program begins on 1 July 2025 and provides up to $372 per usable kilowatt-hour of battery storage capacity. This translates to approximately $3,300 to $4,000 off a standard 10 to 13.5 kWh battery system.

Federal Battery Rebate Overview:

  • Start Date: 1 July 2025
  • Value: Up to 30% of battery system cost
  • Max Rebate: ~$4,000
  • Eligibility Requirements:
    • Battery must be VPP-capable (Virtual Power Plant ready)
    • System must be installed with new or existing rooftop solar
    • Installer must be Clean Energy Council accredited
  • Applies to: Homes, small businesses, and community facilities
  • Not means-tested
  • Delivered through: The Small-scale Renewable Energy Scheme (SRES)

How Much Can You Save with Both Rebates?

If approved, combining the WA and Federal solar battery rebates could deliver total savings of up to $11,500 or more for eligible households.

Example Combined Savings:

Customer TypeWA RebateFederal RebateEstimated Total Saving
Synergy (Metro WA)$5,000~$3,336~$8,336
Horizon (Regional WA)$7,500~$3,720~$11,220

These examples are based on a 10 kWh battery system. Actual amounts may vary depending on system size, installer pricing, and compliance with both program requirements.

Can You Claim Both Rebates at the Same Time?

As of May 2025, the WA Government has not officially confirmed whether the state and federal rebates can be combined. However, based on historical precedent, it is likely that both rebates may be claimed, provided that:

  • The battery system meets the technical criteria for both schemes
  • You use an accredited WA-based installer who can manage both rebate processes

Stay Updated: Register Your Interest

Stay ahead of the rollout by registering your interest at wa.gov.au. You’ll receive updates as the scheme finalises and be notified when applications open.

Why You Shouldn’t Wait

Delaying installation could cost more in the long run:

  • Limited number of rebate allocations available only 20,000
  • Longer install wait times and limited battery supply
  • Higher power bills while waiting
  • Potentially rising installation costs as demand spikes

Installing solar now and working with a trusted local installer to prepare for the rebate is your best bet.

Final Thoughts

The WA Home Battery Rebate is a rare opportunity to slash your power bills and future-proof your energy setup — but spaces are limited.

Installing a hybrid system now and working with a trusted WA-based installer gives you a clear edge when the scheme launches.

Be ready, be early, and reap the benefits of secure, affordable home energy storage.

Frequently asked questions

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James Shand

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