Solar and batteries in Maddington: what the local data shows

Where Maddington is

Maddington is 16 km south-east of the Perth CBD. Postcode 6109 covers Maddington, Orange Grove: about 4,583 occupied homes and 13,143 people at the 2021 Census. Gosnells next door has more batteries for its size (71 per 1,000 homes against 49 here).

What stands out in Maddington

• 28 new solar systems per 1,000 homes in the last 12 months, 33% below the Perth rate: fewer roofs are still getting their first system.
• 49 home batteries for every 1,000 homes since Jul 2025, 25% below the Perth rate.
• Battery uptake is speeding up: the postcode's share of Perth's new batteries went from 0.4% in late 2025 to 0.5% in 2026.
• 24% of homes are owned outright, against 28% across Perth.

Batteries in Maddington since the federal rebate began

225 batteries went in across the postcode from July 2025 to 31 August 2026, averaging 22 kWh, about the Perth average. Installs went from 8 in July 2025 to a high of 28 in April 2026, the same month as Perth as a whole. The postcode's share of the city's new batteries rose from 0.4% in the second half of 2025 to 0.5% in 2026.

Batteries a month, Jul 2025 to Aug 2026. August 2026 is still being registered, so it reads low.

Maddington's solar story since 2001

363 systems went in before 2011. The busiest year was 2021 (287), in the second wave of rooftop solar, and the quietest since 2011 was 2015. 2025 brought 123, 43% of that peak. Systems grew from an average of 2.1 kW in 2011 to 9.6 kW in the last 12 months.

Solar systems a year from 2011 (2026 to 31 August 2026); counts include replacements and small businesses.

Maddington beside its neighbours

• Thornlie, 3 km west: more batteries for its size, more new solar in the past year, more separate houses and fewer renters, with batteries of a similar size.
• Gosnells, 4 km south: more batteries for its size, bigger batteries, more new solar in the past year and fewer renters, with a similar mix of homes.
• Lynwood, 5 km west: more batteries for its size and more new solar in the past year, with batteries of a similar size.
• Cannington, 6 km north-west: more batteries for its size, bigger batteries, more new solar in the past year and more renters, with a similar mix of homes.

Prices, rebates and solar output

Each kW of panels here makes about 1,700 kWh a year, so a 9.6 kW system makes about 16,200 kWh. In STC zone 3, the federal rebates come to about $1,665 on 6.6 kW of solar and $3,663 on a 15 kWh battery (the battery rebate steps down on 1 January 2027). Prices follow the installer, not the suburb: Perth prices · WA rebates.

Getting a price in Maddington

A vetted installer covers postcode 6109, and you meet one at a time (how we choose them).

Nearby: Thornlie · Gosnells · Lynwood · Cannington · every suburb · Perth guide