Solar and batteries in Joondalup: what the local data shows

Where Joondalup is

Joondalup is 26 km north of the Perth CBD. Postcode 6027 covers Joondalup, Beldon, Connolly, Edgewater, Heathridge, Mullaloo and Ocean Reef: about 15,667 occupied homes and 42,828 people at the 2021 Census. Wanneroo next door has more batteries for its size (86 per 1,000 homes against 58 here).

What stands out in Joondalup

• 22% of homes are rented, fewer than the 27% across Perth.
• 36 new solar systems per 1,000 homes in the last 12 months, 13% below the Perth rate: fewer roofs are still getting their first system.
• 32% of homes are owned outright, against 28% across Perth.
• 58 home batteries for every 1,000 homes since Jul 2025, 12% below the Perth rate.

Batteries in Joondalup since the federal rebate began

903 batteries went in across the postcode from July 2025 to 31 August 2026, averaging 20.2 kWh (smaller than the Perth average of 21.8 kWh). Installs went from 41 in July 2025 to a high of 97 in April 2026, the same month as Perth as a whole. About 1.9% of Perth's new batteries go in here, much the same as when the rebate began.

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

Joondalup's solar story since 2001

701 systems went in before 2011. Then came 2011, the postcode's busiest year (1,100), during the first rush of rooftop solar; the quietest since was 2015. 2025 brought 447, 41% of that peak. Systems grew from an average of 2.2 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.

Joondalup beside its neighbours

• Currambine, 2 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.
• Wanneroo, 5 km south-east: more batteries for its size, bigger batteries, more new solar in the past year, more separate houses and fewer renters.
• Banksia Grove, 5 km north-east: more batteries for its size, more new solar in the past year, more separate houses and fewer renters, with batteries of a similar size.
• Clarkson, 7 km north-west: more new solar in the past year and more renters, with about as many batteries for its size.

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 16,400 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 Joondalup

A vetted installer covers postcode 6027, and you meet one at a time (how we choose them).

Nearby: Currambine · Wanneroo · Banksia Grove · Clarkson · every suburb · Perth guide