Duncraig WA 6023
Solar and batteries in Duncraig: what the local data shows
The short answer
401 home batteries have gone in across postcode 6023 since July 2025: about 72 for every 1,000 homes, 11% above the Perth rate. Its busiest solar year was 2011, in the first rush of rooftop solar; 3,879 systems have been registered since 2001. 6.6 kW of solar typically costs about $4,500 to $7,000 in Perth after the federal rebate.
Where Duncraig is
Duncraig is 16 km north-west of the Perth CBD. Postcode 6023 covers Duncraig, Glengarry: about 5,543 occupied homes and 15,982 people at the 2021 Census. Of its nearest neighbours, it has the most home batteries for its size.
What stands out in Duncraig
- 12% of homes are rented, fewer than the 27% across Perth.
- 41% of homes are owned outright, against 28% across Perth.
- 92% of homes are separate houses (78% across Perth), so most homes have a roof and switchboard of their own.
- A median age of 42, older than Perth's 38.
Batteries in Duncraig since the federal rebate began
401 batteries went in across the postcode from July 2025 to 31 August 2026, averaging 21 kWh, about the Perth average. Installs went from 13 in July 2025 to a high of 51 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.
Duncraig's solar story since 2001
296 systems went in before 2011. Then came 2011, the postcode's busiest year (426), during the first rush of rooftop solar; the quietest since was 2015. 2025 brought 186, 44% 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.
Duncraig beside its neighbours
- Sorrento, 2 km west: fewer separate houses and more renters, with about as many batteries for its size.
- Kingsley, 3 km north-east: more new solar in the past year, with about as many batteries for its size.
- Warwick, 4 km east: fewer batteries for its size and more renters, with batteries of a similar size.
- Hillarys, 4 km north-west: fewer batteries for its size, less new solar in the past year and more renters, with batteries of a similar size.
| Figure | Duncraig | Sorrento | Kingsley | Warwick | Hillarys | Perth |
|---|---|---|---|---|---|---|
| Home batteries per 1,000 homes | 72 | 67 | 70 | 57 | 60 | 65 |
| Average battery | 21 kWh | 21.3 kWh | 20 kWh | 20.9 kWh | 20.5 kWh | 21.8 kWh |
| New solar per 1,000 homes, last 12 months | 39 | 37 | 43 | 37 | 36 | 41 |
| Average new solar system | 9.2 kW | 10.3 kW | 9.1 kW | 8.8 kW | 9.4 kW | 9.3 kW |
| Separate houses | 92% | 78% | 88% | 92% | 90% | 78% |
Prices, rebates and solar output
Each kW of panels here makes about 1,750 kWh a year, 5% more than in the Perth CBD, so a 9.2 kW system makes about 15,900 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 Duncraig
A vetted installer covers postcode 6023, and you meet one at a time (how we choose them).
Nearby: Sorrento · Kingsley · Warwick · Hillarys · every suburb · Perth guide
Sources
- Clean Energy Regulator: small-scale installation postcode data (to 31 August 2026)
- ABS 2021 Census QuickStats: postcode 6023
- NREL PVWatts v8 (Duncraig, 1 kW, north at 20°, 14% losses)
- Clean Energy Regulator: postcode zone ratings
- DCCEEW: Cheaper Home Batteries Program
General information, not financial advice. Local figures cover all of postcode 6023. Rebate rules change: figures on this page come from our rules table, last verified 26 September 2026. How we're paid: installers pay Homerise for introducing you.