Solar and batteries in Sorrento: what the local data shows

Where Sorrento is

Sorrento is 17 km north-west of the Perth CBD. Postcode 6020 covers Sorrento, Carine, Marmion, North Beach and Watermans Bay: about 8,083 occupied homes and 22,581 people at the 2021 Census. Duncraig next door has more batteries for its size (72 per 1,000 homes against 67 here).

What stands out in Sorrento

• 14% of homes are rented, fewer than the 27% across Perth.
• 46% of homes are owned outright, against 28% across Perth.
• Homes here moved early on batteries: the postcode's share of Perth's new batteries was 1.2% in late 2025 and 1.0% in 2026.
• A median age of 45, older than Perth's 38.

Batteries in Sorrento since the federal rebate began

539 batteries went in across the postcode from July 2025 to 31 August 2026, averaging 21.3 kWh, about the Perth average. Installs went from 23 in July 2025 to a high of 57 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 1.0% 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.

Sorrento's solar story since 2001

294 systems went in before 2011. Then came 2011, the postcode's busiest year (471), during the first rush of rooftop solar; the quietest since was 2015. 2025 brought 259, 55% of that peak. Systems grew from an average of 2.3 kW in 2011 to 10.3 kW in the last 12 months.

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

Sorrento beside its neighbours

• Hillarys, 2 km north-west: fewer batteries for its size, more separate houses and more renters, with batteries of a similar size.
• Duncraig, 2 km east: more batteries for its size, more separate houses and fewer renters, with batteries of a similar size.
• Kingsley, 5 km east: more new solar in the past year, more separate houses and fewer renters, with about as many batteries for its size.
• Karrinyup, 6 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.

Prices, rebates and solar output

Each kW of panels here makes about 1,700 kWh a year, so a 10.3 kW system makes about 17,600 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 Sorrento

A vetted installer covers postcode 6020, and you meet one at a time (how we choose them).

Nearby: Hillarys · Duncraig · Kingsley · Karrinyup · every suburb · Perth guide