Solar and batteries in Kalamunda: what the local data shows

Where Kalamunda is

Kalamunda is 19 km east of the Perth CBD. Postcode 6076 covers Kalamunda, Bickley, Carmel, Gooseberry Hill, Hacketts Gully, Lesmurdie, Paulls Valley, Pickering Brook, Piesse Brook, Reservoir and Walliston: about 8,039 occupied homes and 22,308 people at the 2021 Census. Forrestfield next door has more batteries for its size (68 per 1,000 homes against 66 here).

What stands out in Kalamunda

• 12% of homes are rented, fewer than the 27% across Perth.
• 46% of homes are owned outright, against 28% across Perth.
• A median age of 47, older than Perth's 38.
• 94% of homes are separate houses (78% across Perth), so most homes have a roof and switchboard of their own.

Batteries in Kalamunda since the federal rebate began

529 batteries went in across the postcode from July 2025 to 31 August 2026, averaging 21.3 kWh, about the Perth average. Installs went from 18 in July 2025 to a high of 63 in April 2026, the same month as Perth as a whole. About 1.1% 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.

Kalamunda's solar story since 2001

562 systems went in before 2011. Then came 2011, the postcode's busiest year (644), during the first rush of rooftop solar; the quietest since was 2015. 2025 brought 235, 36% of that peak. Systems grew from an average of 2.4 kW in 2011 to 10.9 kW in the last 12 months.

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

Kalamunda beside its neighbours

• Forrestfield, 5 km west: more renters, with about as many batteries for its size.
• High Wycombe, 6 km north-west: fewer batteries for its size, less new solar in the past year and more renters, with batteries of a similar size.
• Kewdale, 9 km west: fewer batteries for its size, less new solar in the past year, fewer separate houses and more renters, with batteries of a similar size.
• Midland, 10 km north-west: fewer batteries for its size, less new solar in the past year, fewer separate houses and more renters, with batteries of a similar size.

Prices, rebates and solar output

Each kW of panels here makes about 1,650 kWh a year, so a 10.9 kW system makes about 18,150 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 Kalamunda

A vetted installer covers postcode 6076, and you meet one at a time (how we choose them).

Nearby: Forrestfield · High Wycombe · Kewdale · Midland · every suburb · Perth guide