Solar and batteries in Forrestfield: what the local data shows

Where Forrestfield is

Forrestfield is 14 km east of the Perth CBD. Postcode 6058 covers Forrestfield: about 5,096 occupied homes and 13,181 people at the 2021 Census. Of its nearest neighbours, it has the most home batteries for its size.

What stands out in Forrestfield

• Battery uptake is speeding up: the postcode's share of Perth's new batteries went from 0.6% in late 2025 to 0.7% in 2026.
• 22% of homes are rented, fewer than the 27% across Perth.
• 89% of homes are separate houses (78% across Perth), so most homes have a roof and switchboard of their own.
• Smaller households: 2.5 people on average (2.6 across Perth), so evening use is usually lower.

Batteries in Forrestfield since the federal rebate began

345 batteries went in across the postcode from July 2025 to 31 August 2026, averaging 20.7 kWh (smaller than the Perth average of 21.8 kWh). Installs went from 9 in July 2025 to a high of 45 in April 2026, the same month as Perth as a whole. The postcode's share of the city's new batteries rose from 0.6% in the second half of 2025 to 0.7% in 2026.

Batteries a month, Jul 2025 to Aug 2026. August 2026 is still being registered, so it reads low.

Forrestfield's solar story since 2001

356 systems went in before 2011. Then came 2011, the postcode's busiest year (324), during the first rush of rooftop solar; the quietest since was 2016. 2025 brought 167, 52% of that peak. Systems grew from an average of 2 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.

Forrestfield beside its neighbours

• Kewdale, 4 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.
• High Wycombe, 5 km north: fewer batteries for its size, more separate houses and fewer renters, with batteries of a similar size.
• Kalamunda, 5 km east: fewer renters, with about as many batteries for its size.
• Cannington, 7 km south-west: bigger batteries, less new solar in the past year, fewer separate houses and more renters, 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 10 kW system makes about 16,300 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 Forrestfield

A vetted installer covers postcode 6058, and you meet one at a time (how we choose them).

Nearby: Kewdale · High Wycombe · Kalamunda · Cannington · every suburb · Perth guide