Solar panels in WA, the complete guide
Western Australia has some of the best sunshine in the country, which makes rooftop solar one of the smartest investments a home here can make. This is a clear, no-jargon guide to going solar in WA: what it costs, the support available, and how to get a good install.
- Independent and WA-focused
- No jargon
- Checked May 2026
The short answer
Solar makes strong sense for most WA homes. The state's high sunshine means panels generate well, a federal scheme reduces the upfront cost, and there is real support for adding a battery. WA also has its own feed-in scheme that credits exported power, paying more for power sent to the grid in the evening peak. The best way to know what solar would cost and save at your property is a quote.
Why solar works well in WA
Western Australia is one of the best places in the country for rooftop solar, and the reason is simple: sunshine. A solar system generates power in proportion to the sunlight that reaches it, and WA, Perth especially, gets plenty of it across a long, bright day for much of the year.
That means a solar system on a WA roof tends to generate strongly and consistently. More generation means more of your daytime power coming from your own roof rather than the grid, and more surplus to either store in a battery or export. Combined with the cost of grid electricity, that is what makes solar such a common and sensible choice across the state.
What solar costs in WA
There is no single price for solar, because it depends on the size of the system and your home. But the figures below give a realistic guide based on current WA pricing.
Cost ranges are indicative, based on current WA market data, checked May 2026. They are not a quote. Your actual price depends on the system and your home.
The single most useful number is the one from a quote for your own roof. A quote accounts for your home, your power use and the system that suits you, and applies the federal support at the current rate.
Solar support in WA
Solar in WA is supported in a few ways, and WA is a good state for battery support in particular. Here is the plain-English version, with more detail on the dedicated rebates guide.
The federal scheme
The main support that lowers the upfront cost of solar panels is a national scheme. It works through certificates that an eligible system creates, and your installer applies their value as a discount on your price. It applies in WA as it does nationally, and it steps down over time.
The feed-in scheme
WA has its own feed-in scheme that credits you for surplus power your system exports to the grid. It uses a time-of-export structure, which means power exported during the evening peak is worth more than power exported in the middle of the day. This rewards using or storing your own solar during daylight hours.
For batteries, WA has an active state battery rebate, on top of a federal battery scheme, and the two can be combined. The rebates guide covers all of this in detail, including how it changes over time.
See solar costed for your home
A quote shows the system that suits your roof, the price after the federal support, and what it would save.
Get a WA solar quote→WA solar guides
Whatever stage you are at, these guides go deeper on each part of going solar in Western Australia.
Solar batteries
What a battery costs in WA, the state and federal support, and whether one suits your home.
Read guide →Solar rebates
The federal scheme, the WA battery rebate, and the feed-in scheme explained.
Read guide →EV chargers
Home EV charging in WA, what it costs, and how it pairs with solar.
Read guide →Heat pumps
Heat pump hot water in WA, costs, rebates, and running one on solar.
Read guide →How to get a good solar install
A solar system is a long-term investment, so it is worth getting the install right. A few practical points help.
Get a proper quote
A good quote follows a look at your roof and your power use, and shows the price after the federal support.
Use accredited installers
Solar should be installed by accredited professionals. It protects both the quality of the work and your eligibility for support.
Size it to your use
The right system size depends on how and when you use power. A bigger system is not automatically better value.
Think about a battery
WA has good battery support, so it is worth deciding whether a battery is part of the plan now or later.
WA solar FAQ
How much do solar panels cost in WA?
As a rough guide, a popular mid-sized home solar system in WA is broadly in the region of $5,000 to $7,000 after the federal support is applied. Larger systems cost more. The price depends on system size, the equipment and your roof, so a quote for your home gives the accurate figure.
Is there a solar rebate in WA?
The main support for solar panels is a federal scheme that reduces the upfront cost, applied by your installer as a discount. For home batteries, WA has an active state battery rebate on top of a federal battery scheme. There is also a feed-in scheme that credits exported power. The rebates guide covers all of this in detail.
What feed-in tariff will I get in WA?
WA has its own feed-in scheme that uses a time-of-export structure. Power you export to the grid during the evening peak is worth more than power exported in the middle of the day. This rewards using or storing your own solar during daylight hours rather than exporting it cheaply.
Is solar worth it in WA?
For most WA homes, yes. The state's strong sunshine means panels generate well, the federal support reduces the upfront cost, and you save by using your own power instead of buying from the grid. How quickly it pays back depends on your home and power use, which a quote will show.
Should I add a battery to my solar system?
WA is a good state for batteries. Because the feed-in scheme pays less for daytime exports, storing your solar to use in the evening is often worth more than exporting it. WA also has battery support that reduces the upfront cost. The batteries guide covers whether one suits your home.
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