Gridly
WA 6535 · Northampton
Solar Panel Installation in Horrocks, WA
Find a vetted solar installer in Horrocks. Compare quotes, check local solar data, and get a system designed for your roof.
Get Free Solar QuotesSolar Snapshot for Horrocks
Key data for sizing a solar system in Horrocks, WA 6535.
1,609
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 Horrocks
Breakdown of dwelling types based on census data — relevant for understanding rooftop solar potential.
Houses
91%
547 dwellings
Townhouses
1%
7 dwellings
Apartments
3%
15 dwellings
Horrocks is predominantly freestanding houses, ideal for rooftop solar installation.
Solar Adoption in Horrocks 6535
Installation data from the Clean Energy Regulator, refreshed monthly.
433
Solar Systems Installed
Since 2001
6.4 kW
Avg System Size
2.8 MW
Total Installed Capacity
8
Battery Systems
Horrocks (6535) has 433 registered solar panel installations with a combined capacity of 2.8 MW. The average system size in this postcode is 6.4 kW. That's roughly 72% of dwellings with rooftop solar.
Installations fell 52% in 2025 compared to 2024's 25 systems.
Is Solar Worth It in Horrocks?
Horrocks 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 10% of Horrocks's median household income ($55,536/year). Most households finance this over 3–5 years, with loan repayments typically offset by immediate savings.
Horrocks already has strong solar uptake — roughly 72% 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 Horrocks 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 Horrocks?
With 5.5 peak sun hours per day, Horrocks 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.
Horrocks has a population of 1,609 across 598 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 Horrocks is $55,536 per year. At $5,392 after rebates, a 6.6 kW system represents 10% of annual household income, with savings that continue for 20+ years after the 3.6-year payback.
With car ownership at 94% of households, many residents in Horrocks 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 Horrocks
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 Horrocks.
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 Horrocks get? ▼
Horrocks 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 Horrocks? ▼
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 Horrocks? ▼
A 6.6 kW solar system in Horrocks costs approximately $8,200 before rebates. Horrocks 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 Horrocks? ▼
A 6.6 kW solar system in Horrocks 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 Horrocks? ▼
In Western Australia, most residential solar installations are considered exempt development. Heritage-listed properties or certain zones in Northampton may require approval. Your installer will confirm during the site assessment.
How Horrocks Compares to Nearby Suburbs
Solar potential compared with neighbouring suburbs in the Northampton area.
| Suburb | Sun Hours | 6.6 kW Output | Payback | Solar Adoption |
|---|---|---|---|---|
| Horrocks 6535 | 5.5h | 10,600 kWh | 3.6 yrs | 72% |
| Denham 6536 | 5.5h | 10,600 kWh | 3.6 yrs | 76% |
| Kalbarri 6536 | 5.5h | 10,600 kWh | 3.6 yrs | 76% |
| Northampton 6535 | 5.5h | 10,600 kWh | 3.6 yrs | 72% |
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 Horrocks.
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.