Gridly
WA 6603 · Goomalling
Solar Panel Installation in Wongan Hills, WA
Find a vetted solar installer in Wongan Hills. Compare quotes, check local solar data, and get a system designed for your roof.
Get Free Solar QuotesSolar Snapshot for Wongan Hills
Key data for sizing a solar system in Wongan Hills, WA 6603.
1,110
Population
5.5/day
Peak Sun Hours
10,600
Est. Annual Output (6.6 kW)
$1,495
Est. Annual Savings
3.6 yrs
Est. Payback (6.6 kW)
$2,808
STC Rebate (6.6 kW)
Zone 3
Dwelling Mix in Wongan Hills
Breakdown of dwelling types based on census data — relevant for understanding rooftop solar potential.
Houses
93%
409 dwellings
Townhouses
6%
26 dwellings
Apartments
0%
0 dwellings
Wongan Hills is predominantly freestanding houses, ideal for rooftop solar installation.
Solar Adoption in Wongan Hills 6603
Installation data from the Clean Energy Regulator, refreshed monthly.
226
Solar Systems Installed
Since 2001
7.1 kW
Avg System Size
1.6 MW
Total Installed Capacity
9
Battery Systems
Wongan Hills (6603) has 226 registered solar panel installations with a combined capacity of 1.6 MW. The average system size in this postcode is 7.1 kW. That's roughly 51% of dwellings with rooftop solar.
Installations fell 27% in 2025 compared to 2024's 11 systems.
Is Solar Worth It in Wongan Hills?
Wongan Hills gets 5.5 peak sun hours per day — above the national average. A 6.6 kW system here would produce roughly 10,600 kWh per year, saving an estimated $1,495 annually and paying itself off in 3.6 years.
At $5,392 after rebates, the upfront cost represents 8% of Wongan Hills's median household income ($68,640/year). Most households finance this over 3–5 years, with loan repayments typically offset by immediate savings.
Wongan Hills already has strong solar uptake — roughly 51% of dwellings have rooftop solar, which is above the Western Australia average of 36%.
With a payback under 4 years and 20+ years of remaining system life, solar in Wongan Hills is one of the stronger return-on-investment cases in Western Australia. The question isn’t really whether solar is worth it here — it’s what size system to get.
Why Install Solar in Wongan Hills?
With 5.5 peak sun hours per day, Wongan Hills receives above-average solar irradiance for Australia. A standard 6.6 kW rooftop system here can generate approximately 10,600 kWh per year, saving an estimated $1,495 annually on electricity bills.
Wongan Hills has a population of 1,110 across 440 dwellings. Western Australia's solar-friendly climate combined with electricity rates around 31c/kWh makes solar a strong choice for WA households.
The median household income in Wongan Hills is $68,640 per year. At $5,392 after rebates, a 6.6 kW system represents 8% of annual household income, with savings that continue for 20+ years after the 3.6-year payback.
With car ownership at 96% of households, many residents in Wongan Hills could benefit from pairing solar with a home EV charger. Charging an electric vehicle from rooftop solar can save $1,000 to $1,500 per year compared to grid charging.
Estimated Solar Output & Payback in Wongan Hills
Based on 5.5 peak sun hours/day, 31c/kWh electricity, and STC Zone 3 rebate.
| System Size | Annual Output | Annual Savings | Cost After Rebate | Payback |
|---|---|---|---|---|
| 5 kW | 8,030 kWh | $1,132 | $4,355 $2,145 STC rebate | 3.8 yrs |
| 6.6 kW Most popular | 10,600 kWh | $1,495 | $5,392 $2,808 STC rebate | 3.6 yrs |
| 10 kW | 16,060 kWh | $2,264 | $7,210 $4,290 STC rebate | 3.2 yrs |
| 13 kW | 20,878 kWh | $2,944 | $8,923 $5,577 STC rebate | 3 yrs |
Estimates assume 80% system efficiency, 35% self-consumption rate, 5c/kWh feed-in tariff, and STC Zone 3 ($39/STC, 8-year deeming period). Actual results vary based on roof orientation, shading, and usage patterns.
Solar Rebates in Western Australia
Available incentives that reduce the cost of solar installation in WA.
STCs provide an upfront discount of $2,500 to $4,000 depending on system size.
Synergy and Horizon Power offer time-of-use tariffs that improve solar self-consumption economics.
Popular Solar Panels
Top-rated panels available for installation in Wongan Hills.
Solahart Silhouette Series
455W, 22.8% efficiency
$165
Solahart SunCell Series
440W, 22% efficiency
$140
Canadian Solar TOPHiKu 6
440W, 22.5% efficiency
$130
Trina Solar Vertex S+
440W, 22% efficiency
$120
How Solar Installation Works
Site Assessment and Quote
An installer visits your property, assesses your roof, checks shading, and provides a detailed quote based on your energy usage.
System Design and Approval
Your system is designed to maximise output. Council approval may be needed for heritage properties, but most residential installs are exempt.
Installation
A residential solar installation typically takes one day. The team mounts panels, installs the inverter, and connects the wiring.
Grid Connection and Meter
Your installer lodges paperwork with your distributor. Once approved, your meter is upgraded to a bi-directional meter and you start exporting.
Frequently Asked Questions
How many peak sun hours does Wongan Hills get? ▼
Wongan Hills receives approximately 5.5 peak sun hours per day, based on its warm temperate climate zone. This means a standard 6.6 kW system can generate around 10,600 kWh annually.
What size solar system do I need in Wongan Hills? ▼
The right system size depends on your electricity usage. Average household consumption in Western Australia is 17 to 21 kWh per day. A 6.6 kW system suits most homes, while larger households or those with pools or EV chargers may benefit from a 10 kW or 13 kW system.
How much does solar installation cost in Wongan Hills? ▼
A 6.6 kW solar system in Wongan Hills costs approximately $8,200 before rebates. Wongan Hills is in STC Zone 3, which provides a rebate of $2,808 on a 6.6 kW system. After rebates, expect to pay around $5,392.
What is the payback period for solar in Wongan Hills? ▼
A 6.6 kW solar system in Wongan Hills has an estimated payback period of 3.6 years, based on 5.5 peak sun hours per day and annual savings of $1,495. After the payback period, the system continues generating free electricity for its remaining 20+ year lifespan.
Do I need council approval for solar in Wongan Hills? ▼
In Western Australia, most residential solar installations are considered exempt development. Heritage-listed properties or certain zones in Goomalling may require approval. Your installer will confirm during the site assessment.
How Wongan Hills Compares to Nearby Suburbs
Solar potential compared with neighbouring suburbs in the Goomalling area.
| Suburb | Sun Hours | 6.6 kW Output | Payback | Solar Adoption |
|---|---|---|---|---|
| Wongan Hills 6603 | 5.5h | 10,600 kWh | 3.6 yrs | 51% |
| Goomalling 6460 | 5.4h | 10,407 kWh | 3.4 yrs | 58% |
| Muresk 6401 | 5.4h | 10,407 kWh | 3.4 yrs | 58% |
| Northam 6401 | 5.4h | 10,407 kWh | 3.4 yrs | 58% |
All estimates assume a 6.6 kW system. Sun hours, output, and payback are based on the same methodology. Solar adoption shows CER-registered installations as a percentage of dwellings.
Nearby Suburbs
Solar installers in suburbs near Wongan Hills.
Related Products
Data sources: Clean Energy Regulator (installation counts), ABS 2021 Census (population and dwellings), Bureau of Meteorology (solar exposure). Solar output estimates assume north-facing panels with no shading. Electricity rates are state averages and may differ from your retailer's pricing. Get a personalised quote for accurate savings.