Solar and batteries in Karrinyup: what the local data shows

Where Karrinyup is

Karrinyup is 12 km north-west of the Perth CBD. Postcode 6018 covers Karrinyup, Churchlands, Doubleview, Gwelup, Innaloo and Woodlands: about 16,105 occupied homes and 42,250 people at the 2021 Census. Duncraig next door has more batteries for its size (72 per 1,000 homes against 53 here).

What stands out in Karrinyup

• Homes here moved early on batteries: the postcode's share of Perth's new batteries was 2.0% in late 2025 and 1.6% in 2026.
• 30 new solar systems per 1,000 homes in the last 12 months, 29% below the Perth rate: fewer roofs are still getting their first system.
• 53 home batteries for every 1,000 homes since Jul 2025, 18% below the Perth rate.
• 66% of homes are separate houses (78% across Perth), so more homes share a roof or need strata approval.

Batteries in Karrinyup since the federal rebate began

858 batteries went in across the postcode from July 2025 to 31 August 2026, averaging 20.7 kWh (smaller than the Perth average of 21.8 kWh). Installs went from 46 in July 2025 to a high of 91 in April 2026, the same month as Perth as a whole. Its share of Perth's new batteries eased from 2.0% in the second half of 2025 to 1.6% in 2026, as other suburbs caught up.

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

Karrinyup's solar story since 2001

556 systems went in before 2011. Then came 2011, the postcode's busiest year (702), during the first rush of rooftop solar; the quietest since was 2015. 2025 brought 387, 55% of that peak. Systems grew from an average of 2.2 kW in 2011 to 9.4 kW in the last 12 months.

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

Karrinyup beside its neighbours

• Scarborough, 3 km south: fewer batteries for its size, less new solar in the past year, fewer separate houses and more renters, with batteries of a similar size.
• Balcatta, 4 km east: bigger batteries and fewer renters, with about as many batteries for its size.
• Duncraig, 5 km north: more batteries for its size, more new solar in the past year, more separate houses and fewer renters, with batteries of a similar size.
• Warwick, 5 km north-east: more new solar in the past year, more separate houses and fewer 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 9.4 kW system makes about 16,150 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 Karrinyup

A vetted installer covers postcode 6018, and you meet one at a time (how we choose them).

Nearby: Scarborough · Balcatta · Duncraig · Warwick · every suburb · Perth guide