Home Solar Power In Western Australia
Last Updated: 5th Jan 2026
Residential solar power systems installed across Western Australia are collectively saving their owners many millions of dollars a year — you can join them.
At least 553,882 systems had been installed across WA as at early December 2025 (Source: Clean Energy Regulator). These systems collectively boasted a total installed capacity of more than 3.07GW. In terms of capacity, rooftop solar collectively is WA’s biggest power station.
According to March 2025 Population.Gov figures, Western Australia has 3,030,000 residents. That calculates out to 1.01 kW of small scale solar power capacity per person; in line with Australia’s national average of 1kW. WA is also a stand-out performer in terms of residential solar PV saturation. The Australian Photovoltaic Institute puts that figure at 48.4% of detached/semi-detached dwellings — third among Australia’s states and territories.
There’s no signs yet of Western Australia’s residential solar power boom petering out as high electricity prices increasingly turn residents to the bill-busting technology. A 6.6kW system installed in Perth (a popular size that offers great bang for buck) can generate a whopping 31 kWh (daily average over a year). For the electricity you don’t use, you can receive a (small) payment called a feed-in tariff — aka the Distributed Energy Buyback Scheme (DEBS).
WA Home Battery Breakout
While solar systems are dirt-cheap these days — particularly in Western Australia given the level of competition — a solar battery has remained out of reach of many WA households.
That changed in July 2025 with the launch of the Cheaper Home Batteries Program (CHBP), which slashes the upfront cost of buying a system. Western Australia also launched its own state-based program, the Residential Battery Scheme.
With so much pent-up demand, the WA home battery business started going gangbusters. Between July 1 2025 and December 31 2025, 14,925 energy storage systems were installed, commissioned and registered.
Whether its solar panels or batteries, it’s important to get the right system for your needs installed by the right company in order to avoid headaches and maximise the benefits of harvesting the sun’s energy from your rooftop — and that’s what the SolarQuotes web site has been all about since it was launched back in 2009.
Other Western Australia Solar Power Information
- Comprehensive solar guide
- Solar prices in Western Australia
- WA solar feed in tariffs
- WA solar and battery rebates and subsidies
- Compare energy deals in Western Australia
- Grid connection process in Western Australia
- Find information on your WA town or suburb
- WA solar power news
Recommended Installers In Selected WA Areas
While the following links just cover a couple of Western Australia’s major population centres, we have installers in our network for just about everywhere in the state.
- Perth
- Rockingham
- Live in another part of WA? Get up to 3 quotes and solid advice.
If you’re in WA and are yet to choose a solar installer, you can receive up to 3 solar quotes from hand-picked installers in Western Australia I have personally pre-vetted and and trust who provide services in your region.