WA Battery Scheme 2026: how to claim your $1,300 battery rebate

The WA Battery Scheme reduces the upfront cost of a home battery by up to $1,300 — applied directly to your installer's invoice at point of sale. Here's how it works and what you need to qualify.

What is the WA Battery Scheme?

The WA Battery Scheme is a state government program that subsidises home battery storage for Synergy residential customers. It pays $130 per kWh of usable battery capacity, up to a maximum of $1,300 (for batteries 10kWh and above).

The rebate is applied by your installer as a discount on your invoice — you never handle the rebate directly. The installer claims it back from the scheme administrator after your installation is complete.

How much can you get?

| Battery size | Rebate amount | |---|---| | 5kWh | $650 | | 8kWh | $1,040 | | 10kWh | $1,300 (maximum) | | 13kWh | $1,300 (capped at 10kWh) | | 15kWh+ | $1,300 (capped at 10kWh) |

Larger batteries get the same $1,300 maximum — there's no additional rebate for capacity above 10kWh. If you're considering an 8kWh vs 10kWh battery, the extra $260 rebate for going up to 10kWh is worth factoring into that decision.

Who qualifies?

You must meet all of the following:

1. Synergy customer — The scheme is for residential customers on Synergy's distribution network (the South West Interconnected System). Customers outside the SWIS network are not eligible.

2. Residential property — The property must be a residential dwelling (house, townhouse, unit/apartment where you're the occupying owner). Investment properties may have different eligibility — confirm with your installer.

3. New battery installation — The rebate applies to new battery systems only. An existing battery being relocated or replaced does not qualify.

4. Battery on the approved product list — The battery must be listed on Synergy's Solar Storage for WA (SSL) approved products list. This list includes most mainstream brands sold in WA (Tesla Powerwall, Sungrow, Growatt, LG RESU, BYD, Alpha-ESS, and others). Your installer will confirm eligibility before quoting.

5. Grid-connected system — The battery must be connected to the Synergy grid, paired with an existing or new solar PV system. Standalone off-grid systems are not eligible.

6. CEC-accredited installer — Your installer must hold current Clean Energy Council (CEC) accreditation. All reputable solar and battery installers in WA are CEC-accredited — this is a standard requirement, not an additional hurdle.

Is there an income test?

No. The WA Battery Scheme is available to all eligible Synergy residential customers regardless of income. There is no means testing.

How the rebate is applied

The scheme is handled entirely by your installer — you don't lodge any claims directly:

1. Get quotes from CEC-accredited installers — ask each one to confirm the battery is on the SSL approved list and include the WA Battery Scheme rebate in the quoted price
2. Your installer's quote shows the full installed price minus the $1,300 (or applicable amount) rebate — you pay the discounted total
3. After installation, the installer lodges the claim with the scheme administrator
4. You receive a certificate confirming the rebate has been applied

You don't need to interact with Synergy or the scheme directly. If an installer doesn't mention the WA Battery Scheme, ask — every eligible installation should have it applied automatically.

Does the rebate affect the WA STC solar rebate?

No. The WA Battery Scheme rebate is separate from the federal Small-scale Technology Certificate (STC) rebate that applies to solar panels. If you're installing solar and battery together, you receive both:

• STC rebate on the solar panels (applied at point of sale by the installer)
• WA Battery Scheme on the battery (applied at point of sale by the installer)

For a 6.6kW solar + 10kWh battery system in Perth in 2026, both rebates combined typically reduce the upfront cost by approximately $3,000–3,100.

Tesla Powerwall 3: check before you quote

Important: Tesla Powerwall 3 uses an integrated inverter and was not on the WA approved product list (SSL) as of the time of writing. If a Powerwall 3 is included in your quote, confirm with your installer that it has been approved under the WA Battery Scheme before signing.

The original Powerwall 2 (and 2+ where available) has been on the approved list. If Powerwall 3 approval status matters to your decision, ask the installer to show you the SSL listing directly.

What to ask your installer

Before signing a quote:

1. "Is this battery model on the WA SSL approved product list?"
2. "Is the WA Battery Scheme rebate included in the quoted price shown?"
3. "Are you CEC-accredited?"
4. "Will you handle the rebate claim on my behalf?"

All four should get a straightforward yes. Any hesitation on the first two points is worth pressing on.

The rebate alongside payback calculations

Taking the rebate into account:

Option B (solar + battery) from our solar-only vs solar+battery comparison:

• 10kWh battery installed: ~$10,000–11,000
• WA Battery Scheme rebate: $1,300 off
• Battery cost after rebate: ~$8,700–9,700

At ~$407/year additional savings from the battery vs solar-only, the incremental payback on the battery after the rebate is approximately $9,200 ÷ $407 = 22.6 years — still long on pure ROI. The rebate matters, but it doesn't change the fundamental economics enough to shift the decision for most households.

Where the rebate becomes more decisive: households with high evening consumption, an EV to charge, or high bushfire-risk areas where backup power has standalone value.

Model your battery payback with the current rebate →

Scheme details are based on the WA Battery Scheme as administered for Synergy residential customers. Rebate amounts and eligibility may change — confirm current details with your installer or directly with Synergy before purchasing.