WA Battery Rebate, answered.

Up to $5,000 for Synergy customers and up to $7,500 for Horizon Power customers. That's just the state rebate - the federal Cheaper Home Batteries Program stacks on top, typically adding another $4,000–$5,000 for a 13.5 kWh system.

Yes - they're designed to stack. The federal rebate (Cheaper Home Batteries Program) is applied at point of sale; the WA state rebate is processed through your accredited installer.

1 July 2025. The federal Cheaper Home Batteries Program started the same day.

Until 100,000 households have claimed it, on a first-come, first-served basis. Funding is $337 million.

The WA state rebate rate is fixed by the scheme. The federal rebate rate steps down each year through 2030 - installing earlier captures a higher federal value.

Yes. The owner-occupier or the landlord claims the rebate - renters can't claim it directly. If you're renting and want a battery, you'd need to organise it with your landlord.

No - but the battery pays back much faster paired with solar. Without solar, expect a 10–12 year payback; with solar, 4–8 years.

You're eligible, and your rebate is higher (up to $7,500). Some remote microgrids have additional rules about export limits - your installer will know.

The Residential Battery Rebate is residential only. Small business installs go through different schemes.

The rebate is one per address. If you own two WA homes you can install a battery in each and claim once per property.

Look at your electricity bill - the retailer name is on the front. Roughly: Perth metro and south-west (postcodes 6000–6385 and 6800–6999) are Synergy. Pilbara, Kimberley, Mid West, Goldfields-Esperance and Gascoyne (postcodes 6386–6799) are Horizon Power.

Regional WA relies heavily on diesel generation, which is expensive. A battery installed in the Pilbara reduces diesel consumption far more than one in the metro grid, so the state pays more to encourage it.

Synergy's Distributed Energy Buyback Scheme pays you about 10c/kWh for solar exported during the 3pm–9pm peak window, and 2.5c/kWh outside that. A battery lets you store cheap midday solar and either use it during peak or export at the higher rate.

Rule of thumb: aim to cover your evening consumption (3pm–10pm). Most WA homes land at 10–14 kWh. Use the calculator with different battery sizes to see how payback changes.

Whatever is on the SAA approved list at the time of install. At launch the main eligible systems were Tesla Powerwall 3, Sungrow SBR-series, BYD Battery-Box Premium HVS/HVM, and a few others. The list grows over time.

It's popular - built-in inverter, large 13.5 kWh capacity, strong app. Downsides: longer lead times and a higher price than equivalent Sungrow/BYD systems.

BYD Battery-Box Premium HVS configurations and lower-capacity Sungrow setups are usually the budget pick. Always check the SAA listing before signing.

Search the official SAA register, or use our comparison page - every installer there is currently SAA accredited, has been in WA 5+ years, and has 50+ verified reviews.

Three. The price spread between WA installers on identical battery models is often $1,500–$3,000. Two minutes of comparison saves a lot.

(1) Which specific battery model are you quoting, and is it on the current SAA list? (2) What's the total out-of-pocket after both rebates? (3) What's the warranty on the battery and the workmanship? (4) Who do I call if something goes wrong in year three?

Most batteries are installed in one day. Total time from signing the quote to commissioning is usually 2–6 weeks depending on stock and retailer paperwork.

With both rebates and existing solar: 4–8 years. Horizon Power customers pay back faster due to higher electricity prices. Use the calculator for your specific numbers.

Depends on battery size, solar size and your evening consumption. Most paired solar+battery homes see 50–70% bill reductions.

Most batteries are warranted for 10 years and 70% capacity at end of warranty. Real-world lifespans of 12–15 years are common with good thermal conditions.

Most modern batteries (Powerwall 3, Sungrow SBR) support whole-home or partial backup. Confirm with your installer - it's not automatic on every model.

Battery-only installs: usually 2–4 weeks from signing (Tesla can stretch to 6–10 weeks). Solar + battery bundled: 3–6 weeks typically. The install itself is one day; the remaining time is product delivery, Western Power approval and rebate paperwork.

You contact your installer first - they're the warranty front-line for both the workmanship (their own 5-year guarantee) and the manufacturer warranty (10 years on the battery itself). A reputable installer will inspect, troubleshoot, and replace components without out-of-pocket cost. Choose installers with a track record of warranty service, not just install volume.

Depends on the model and how it's wired. Tesla Powerwall 3 supports automatic whole-home backup. Sungrow and BYD typically default to selected-circuit backup (lights, fridge, comms) unless you pay extra for whole-home configuration. Air conditioners and pool pumps usually need their own circuit in either case.

Yes, kind of. If the rebate is denied because the installer made an error (e.g. wrong product model lodged), most installer contracts include a clawback clause where they bear the cost. If it's denied because of homeowner error (incorrect eligibility info), you carry it. Always confirm eligibility in writing before signing.

Most home and contents policies cover battery systems automatically. Some require explicit declaration if the install value exceeds $20k. Always email your insurer before install to confirm coverage. Storm damage, fire and theft are usually included; intentional damage and gradual wear are not.

For most battery households, yes. Smart Home Plan has higher peak rates but much lower off-peak - which a battery is designed to take advantage of. Run Synergy's tariff comparison tool from your My Account dashboard to see your specific savings.

Yes - Plenti, RateSetter and SolarStar offer solar/battery green loans at 4–6% rates. Some installers offer their own payment plans. Even with finance, the maths typically still works as long as the loan rate is under 8% - but the cleanest play is to pay cash and capture the rebate quickly.

Modestly - typical uplift is $3,000–$5,000 on resale value for a recently-installed battery, less than what you paid (after rebates). Bigger impact: solar + battery properties sell faster, especially in WA's current tight market. Estate agents flag the install as a feature.

If the property is an investment (rental), yes - the system is depreciable against rental income. Talk to your accountant. If the property is owner-occupied, no - it's a private capital expense.

Probably not - Synergy's daily supply charge (~$1.20/day) applies regardless of consumption, so even a fully-self-sufficient home pays ~$110/quarter in supply charges. But usage charges can drop close to zero for solar + battery + low-consumption households.