WA-licensed (EC13384), SAA-accredited solar for Alexander Heights homes — sized for local roofs, City of Wanneroo approvals and Western Power’s rules.
★ 4.9 rated • EC13384 Licensed • SAA-accredited • 3,000+ installs since 2018
Alexander Heights is a settled Wanneroo family suburb where about 91% of homes are standalone houses and 82% are owner-occupied — the kind of long-term ownership that makes solar an easy financial call. Roughly a third of households own outright and just over half are paying off a mortgage, and with a median age of 39 many are established families running air-conditioning, pool pumps and a house full of appliances. Homes here sit on the generous 1980s–90s blocks typical of the City of Wanneroo, which usually means unshaded, north-facing roof space. Across the 6064 postcode area (which covers several suburbs including Girrawheen, Koondoola and Marangaroo), more than 6,000 rooftop systems are already installed, but they average just 4.73 kW — a sign many were early, undersized arrays. That gap is the opportunity: newer 6.6 kW-plus systems generate far more, and the older 4 kW installs around the neighbourhood are prime candidates for an upgrade or a battery retrofit.
homes in Alexander Heights
detached houses
owner-occupied
installs · postcode 6064
Sources: ABS 2021 Census (Alexander Heights); Clean Energy Regulator — postcode 6064, 28.6 MW installed. Median resident age 39.
For a typical Alexander Heights family home — a freestanding house on a decent block with ducted air-con and a busy laundry — a 6.6 kW system is the sensible starting point. That’s about 16 panels producing roughly 9,500–10,500 kWh a year in Perth, comfortably covering daytime use for most households. If you run a pool, work from home, or already drive an EV, stepping up to a 10 kW array captures more of that daytime load and leaves headroom for growth. Keep in mind Western Power export-limits systems above 5 kW to the greater of 1.5 kW or 5%, so once you go past 6.6 kW the numbers favour self-consumption — which is exactly where a battery earns its keep. Given the older 4.73 kW-average systems common across the postcode, many local homes are also good candidates for a straight capacity upgrade.
Rooftop solar on a standard non-heritage home in City of Wanneroo is generally exempt from planning approval when panels sit parallel to the roof — a building permit may still apply. The federal STC rebate discounts your system upfront based on size and Perth’s Zone 3 rating, and the WA Residential Battery Scheme adds rebates and no-interest loans for home storage. On the network, Western Power export-limits systems over 5 kW (to the greater of 1.5 kW or 5% of inverter capacity) and requires Emergency Solar Management; since 1 May 2026, inverter capacity up to 30 kVA is permitted under those rules.
Many Alexander Heights homes have tile roofs and original 1970s–1990s switchboards. We verify switchboard capacity, check tile condition before mounting, and replace any deteriorated tiles during install rather than discovering issues afterwards.
For most Alexander Heights homes, no development approval is needed: WA planning regulations (Schedule 2 cl.61) exempt rooftop solar when panels sit parallel to the roof and the house isn’t heritage-listed. A building permit may still apply, and Vista handles the Western Power paperwork either way.
The 6064-area average is 4.73 kW, but that reflects older installs; most family homes now fit 6.6 kW of panels on a 5 kW inverter to cover daytime use. On Western Power’s network anything over 5 kW is export-limited, so sizing to self-consumption matters more than maximising exports.
Older roofs are common in an established suburb like this, and most tile or Colorbond roofs carry panels fine. Vista inspects the roof structure, timbers and switchboard before quoting — if your board is a legacy fuse type it may need upgrading to meet current standards, which we flag upfront.
A 6.6 kW system typically lands around $3,000–$5,000 installed after the federal STC rebate, which is worth roughly $2,500–$3,500 here in Perth’s STC Zone 3. Stepping up to 10 kW runs about $5,500–$8,500 installed. Final pricing depends on panel and inverter choice and your switchboard.
Increasingly, yes. Because Western Power caps exports above 5 kW, storing your surplus rather than exporting it cheaply is where the value sits. The WA Residential Battery Scheme now offers rebates plus no-interest loans, which shortens payback considerably — especially for the many households here still on a mortgage watching every bill.
Most households save around $1,500–$2,500 or more a year with a well-sized 6.6 kW system, depending on how much generation you use during the day. Families running air-con and pool pumps in daylight hours tend to sit at the upper end. Add a battery and you push savings higher by cutting evening grid use.
Vista Electrical Controls is a WA Licensed Electrical Contractor (EC13384) with SAA-accredited installers and more than 3,000 solar installations across Perth and regional WA since 2018. Every system is backed by a 10-year workmanship warranty alongside manufacturer product and performance warranties, and we handle the STC paperwork, Western Power application and grid connection for you — start to switch-on, managed by local electricians.
WA Licensed
Accredited installers
installs since 2018
workmanship warranty
Vista installs solar panels Perth — panel installation, batteries and inverters. Nearby suburbs we serve:
Tell us about your Alexander Heights home and we’ll size a system to your roof, energy use and City of Wanneroo requirements — with $0-upfront finance available.