What’s Actually Available Right Now

Rebates for sustainable homes in WA generally stack: a federal discount, a state rebate, and sometimes a no-interest loan can all apply to the same system. But this is also the fastest-changing part of the whole sustainable building process, so treat every dollar figure below as a snapshot rather than a guarantee.

Figures on this page were last checked in August 2026 against energy.gov.au, wa.gov.au, and Synergy. Rebate programs change often, so always confirm current terms directly before signing a contract.

The Federal Solar Battery Rebate (Cheaper Home Batteries Program)

The federal government’s Cheaper Home Batteries Program provides an upfront discount on new home battery systems, worth roughly 30% of the battery’s cost through Small-scale Technology Certificates. As of August 2026, the discount applies in tiers: full value on the first 14kWh of usable capacity, a reduced rate on the next 14kWh, and a much smaller rate beyond that, with the exact certificate value adjusting periodically. For a typical 10-14kWh home battery this generally works out to several thousand dollars off the purchase price, applied by your installer at the point of sale rather than claimed separately afterwards.

The WA Residential Battery Scheme

On top of the federal discount, the WA Residential Battery Scheme offers a state rebate of up to $1,300 for Synergy customers or up to $3,800 for Horizon Power customers, based on a 10kWh battery. To qualify, the battery must be a new, VPP-capable unit from the approved products list, installed by an accredited installer after 1 July 2025, and you’ll need to agree to participate in a virtual power plant, sending stored energy back to the grid at times of peak demand, with the option to opt out after two years. The scheme is expected to run until its allocation of 100,000 rebates is reached, currently projected around 2027.

No-Interest Loans for Batteries and Solar

Alongside the rebate, eligible WA households can also access a no-interest loan of up to $10,000 to help cover the cost of a battery, or a combined solar-and-battery package. Loans are available to households with combined annual income under $210,000, repayable over three to ten years with no early repayment fees, and are administered through Plenti on behalf of the WA Government. Combined with the state rebate and federal discount, this can substantially close the gap between wanting a battery and actually being able to afford one upfront.

Solar Feed-In Tariffs (DEBS)

Once your system is exporting power, WA’s Distributed Energy Buyback Scheme pays Synergy customers a feed-in tariff of around 10c/kWh for exports between 3pm and 9pm, dropping to around 2c/kWh outside those hours, among the lowest feed-in rates in the country. This makes self-consumption, using your own solar generation directly or storing it in a battery for evening use, far more valuable than exporting it to the grid. Horizon Power customers in regional WA are on separate, regulated arrangements that vary by location.

The Federal Solar Panel Rebate (STCs)

Separately from the battery program, new solar panel installations remain eligible for the long-running federal Small-scale Renewable Energy Scheme, which reduces the upfront cost of the panels themselves, applied as a discount by your installer at the point of sale. This is the same underlying mechanism that has supported solar uptake in Australia since 2011 and isn’t specific to WA, but it stacks with the state-specific battery incentives above if you’re installing solar and a battery together.

How to Check What’s Current Before You Commit

Every figure on this page can and does change: rebate caps get reviewed, certificate values adjust twice yearly, feed-in tariffs get revised, and scheme allocations run out. Before finalising a system size or signing a contract, check energy.gov.au for the current federal battery and solar rebates, wa.gov.au for the WA Residential Battery Scheme’s latest terms, and synergy.net.au or horizonpower.com.au for your current feed-in tariff. Ask any installer to itemise exactly which rebates they’ve applied to your quote, rather than just showing a final discounted price.

For how these figures factor into your overall build or upgrade budget, see our Planning a Sustainable Home guide, and our Home Electrification & Renewable Energy guide covers the underlying technology in more depth.