Solar and batteries in Balcatta: what the local data shows

Where Balcatta is

Balcatta is 11 km north-west of the Perth CBD. Postcode 6021 covers Balcatta, Stirling: about 8,218 occupied homes and 20,980 people at the 2021 Census. Duncraig next door has more batteries for its size (72 per 1,000 homes against 50 here).

What stands out in Balcatta

• 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.
• 50 home batteries for every 1,000 homes since Jul 2025, 24% below the Perth rate.
• 37% of homes are owned outright, against 28% across Perth.
• 68% of homes are separate houses (78% across Perth), so more homes share a roof or need strata approval.

Batteries in Balcatta since the federal rebate began

407 batteries went in across the postcode from July 2025 to 31 August 2026, averaging 23.2 kWh (larger than the Perth average of 21.8 kWh). Installs went from 16 in July 2025 to a high of 43 in April 2026, the same month as Perth as a whole. About 0.8% 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.

Balcatta's solar story since 2001

160 systems went in before 2011. The busiest year was 2021 (384), in the second wave of rooftop solar, and the quietest since 2011 was 2014. 2025 brought 175, 46% of that peak. Systems grew from an average of 2.3 kW in 2011 to 10 kW in the last 12 months.

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

Balcatta beside its neighbours

• Warwick, 2 km north: more batteries for its size, smaller batteries, more new solar in the past year, more separate houses and fewer renters.
• Girrawheen, 4 km north-east: fewer batteries for its size, less new solar in the past year and more separate houses, with batteries of a similar size.
• Karrinyup, 4 km west: smaller batteries and more renters, with about as many batteries for its size.
• Duncraig, 5 km north-west: more batteries for its size, smaller batteries, more new solar in the past year, more separate houses and fewer renters.

Prices, rebates and solar output

Each kW of panels here makes about 1,700 kWh a year, so a 10 kW system makes about 17,000 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 Balcatta

A vetted installer covers postcode 6021, and you meet one at a time (how we choose them).

Nearby: Warwick · Girrawheen · Karrinyup · Duncraig · every suburb · Perth guide