Solar and batteries in Kelmscott: what the local data shows

Where Kelmscott is

Kelmscott is 23 km south-east of the Perth CBD. Postcode 6111 covers Kelmscott, Ashendon, Camillo, Canning Mills, Champion Lakes, Karragullen, Lesley, Roleystone and Westfield: about 8,790 occupied homes and 23,639 people at the 2021 Census. Armadale next door has more batteries for its size (101 per 1,000 homes against 61 here).

What stands out in Kelmscott

• 21% of homes are rented, fewer than the 27% across Perth.
• Homes here moved early on batteries: the postcode's share of Perth's new batteries was 1.2% in late 2025 and 1.1% in 2026.
• 90% of homes are separate houses (78% across Perth), so most homes have a roof and switchboard of their own.
• 32% of homes are owned outright, against 28% across Perth.

Batteries in Kelmscott since the federal rebate began

540 batteries went in across the postcode from July 2025 to 31 August 2026, averaging 21.4 kWh, about the Perth average. Installs went from 25 in July 2025 to a high of 62 in April 2026, the same month as Perth as a whole. Its share of Perth's new batteries eased from 1.2% in the second half of 2025 to 1.1% 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.

Kelmscott's solar story since 2001

462 systems went in before 2011. Then came 2011, the postcode's busiest year (520), during the first rush of rooftop solar; the quietest since was 2015. 2025 brought 310, 60% of that peak. Systems grew from an average of 2.2 kW in 2011 to 9.2 kW in the last 12 months.

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

Kelmscott beside its neighbours

• Armadale, 4 km south: more batteries for its size, bigger batteries, more new solar in the past year and more renters, with a similar mix of homes.
• Gosnells, 4 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.
• Maddington, 8 km north: fewer batteries for its size, less new solar in the past year, fewer separate houses and more renters, with batteries of a similar size.
• Thornlie, 9 km north-west: less new solar in the past year, with about as many batteries for its size.

Prices, rebates and solar output

Each kW of panels here makes about 1,650 kWh a year, so a 9.2 kW system makes about 15,200 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 Kelmscott

A vetted installer covers postcode 6111, and you meet one at a time (how we choose them).

Nearby: Armadale · Gosnells · Maddington · Thornlie · every suburb · Perth guide