Solar in the South West
Solar panels in Bunbury
Bunbury is the capital of the South West, two hours below Perth, with a Mediterranean climate of hot dry summers and mild wet winters that suits solar very well. The Clean Energy Regulator's postcode data on this page covers Bunbury and its suburbs from South Bunbury and Carey Park out to Glen Iris and College Grove, the coastal estates at Dalyellup, and the fast-growing towns of Eaton, Millbridge and Australind across the estuary.
- Systems installed in the last 12 months
- 798
- Average system size, last 12 months
- 9.2 kW
- Systems installed since 2011
- 17,852
- STC zone and peak sun
- Zone 3
- 5 sun hours a day
Clean Energy Regulator small-scale installation data across 3 postcodes, to September 2026. Averages include some business systems.
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Where the installs are going
Australind and Eaton are where the growth has been, with Dalyellup close behind. These are new estates of large single-storey homes on Colorbond roofs, and they have installed solar at a rate the older parts of the city cannot match. Bunbury itself has a mix of older brick homes and post-war weatherboard, plus the heritage streets near the CBD.
Roofs and homes in Bunbury
Salt and wind are the local factors. The sea breeze that makes summer bearable also carries salt well inland, so coastal-rated mounting hardware and stainless fasteners are the right specification for most of the region, not just the beachfront. The South West gets strong winter storms off the Indian Ocean, and roofs on exposed sites at Dalyellup and Binningup should have properly engineered mounting. Tile roofs on the older homes need careful tile-hook work; Colorbond in the estates is straightforward. A roof that is due for new sheeting should get it before the array goes on, not after.
The network: Western Power
Western Power runs the network, and Synergy is the retailer for most households, which makes WA different from the eastern states: the feed-in tariff is set by government under the Distributed Energy Buyback Scheme and pays much more for exports in the late afternoon and evening than during the day. That pushes Bunbury households towards west-facing arrays and towards batteries, which can shift solar into the higher-paying window. Single-phase export limits apply, and larger systems need Western Power's approval.
Rebates and feed-in tariffs in Bunbury
- Federal: Up to $7,000 in federal rebates in STC Zone 3. See how we calculate this.
- Western Australia: up to $1,300 (Synergy) or $3,800 (Horizon Power) from the WA Residential Battery Scheme, stackable with the federal rebate.
- Feed-in tariff: rates in Western Australia are set by the state under the Distributed Energy Buyback Scheme. Compare WA feed-in tariffs.
What's actually happening on roofs near you
Bunbury is 3 postcodes. Check yours, or any other.
What Bunbury homeowners ask us
Bunbury homeowners ask about the WA battery scheme, which stacks with the federal rebate and has been a genuine reason to add storage here, and about the buyback scheme's time-of-day rates, which change the answer to how a system should face. They also ask about installers from Perth versus local ones. Either can be fine, but a company that services the South West every week will be there when a fault develops in winter, and that matters more than the last few hundred dollars on the quote. One more thing worth asking is whether the quote includes the Western Power connection application and the meter change, because a surprising number of South West quotes leave one of them out and add it later.
Questions people ask
How many homes in Bunbury installed solar in the last 12 months?
798 small-scale solar systems were installed across Bunbury's 3 postcodes in the 12 months to September 2026, averaging 9.2 kW. The figures are the Clean Energy Regulator's postcode data, not estimates.
What solar rebates apply in Bunbury?
Up to $7,000 in federal rebates apply in Bunbury, calculated from STC Zone 3 and the federal battery rebate. Western Australia: up to $1,300 (Synergy) or $3,800 (Horizon Power) from the WA Residential Battery Scheme, stackable with the federal rebate.
What is the best feed-in tariff in Bunbury?
Feed-in tariffs in Western Australia are set by the state under the Distributed Energy Buyback Scheme, so compare plans once your system is in.
Your rebate, one Why Solar Approved installer in Bunbury, and a solar expert on the phone before you sign.
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