Gridly
WA 6168 · Rockingham
Solar Panel Installation in Rockingham, WA
Find a vetted solar installer in Rockingham. Compare quotes, check local solar data, and get a system designed for your roof.
Get Free Solar QuotesSolar Snapshot for Rockingham
Key data for sizing a solar system in Rockingham, WA 6168.
24,913
Population
5.3/day
Peak Sun Hours
10,214
Est. Annual Output (6.6 kW)
$1,440
Est. Annual Savings
3.5 yrs
Est. Payback (6.6 kW)
$3,159
STC Rebate (6.6 kW)
Zone 2
Dwelling Mix in Rockingham
Breakdown of dwelling types based on census data — relevant for understanding rooftop solar potential.
Houses
73%
7,582 dwellings
Townhouses
15%
1,590 dwellings
Apartments
10%
996 dwellings
Rockingham is predominantly freestanding houses, ideal for rooftop solar installation.
Solar Adoption in Rockingham 6168
Installation data from the Clean Energy Regulator, refreshed monthly.
5,818
Solar Systems Installed
Since 2001
4.9 kW
Avg System Size
28.3 MW
Total Installed Capacity
302
Battery Systems
Rockingham (6168) has 5,818 registered solar panel installations with a combined capacity of 28.3 MW. The average system size in this postcode is 4.9 kW. That's roughly 56% of dwellings with rooftop solar.
Installations fell 16% in 2025 compared to 2024's 254 systems.
Is Solar Worth It in Rockingham?
Rockingham gets 5.3 peak sun hours per day — above the national average. A 6.6 kW system here would produce roughly 10,214 kWh per year, saving an estimated $1,440 annually and paying itself off in 3.5 years.
At $5,041 after rebates, the upfront cost represents 8% of Rockingham's median household income ($61,152/year). Most households finance this over 3–5 years, with loan repayments typically offset by immediate savings.
Rockingham already has strong solar uptake — roughly 56% 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 Rockingham 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 Rockingham?
With 5.3 peak sun hours per day, Rockingham receives above-average solar irradiance for Australia. A standard 6.6 kW rooftop system here can generate approximately 10,214 kWh per year, saving an estimated $1,440 annually on electricity bills.
Rockingham has a population of 24,913 across 10,370 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 Rockingham is $61,152 per year. At $5,041 after rebates, a 6.6 kW system represents 8% of annual household income, with savings that continue for 20+ years after the 3.5-year payback.
With car ownership at 90% of households, many residents in Rockingham 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 Rockingham
Based on 5.3 peak sun hours/day, 31c/kWh electricity, and STC Zone 2 rebate.
| System Size | Annual Output | Annual Savings | Cost After Rebate | Payback |
|---|---|---|---|---|
| 5 kW | 7,738 kWh | $1,091 | $4,121 $2,379 STC rebate | 3.8 yrs |
| 6.6 kW Most popular | 10,214 kWh | $1,440 | $5,041 $3,159 STC rebate | 3.5 yrs |
| 10 kW | 15,476 kWh | $2,182 | $6,742 $4,758 STC rebate | 3.1 yrs |
| 13 kW | 20,119 kWh | $2,837 | $8,299 $6,201 STC rebate | 2.9 yrs |
Estimates assume 80% system efficiency, 35% self-consumption rate, 5c/kWh feed-in tariff, and STC Zone 2 ($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 Rockingham.
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 Rockingham get? ▼
Rockingham receives approximately 5.3 peak sun hours per day, based on its warm temperate climate zone. This means a standard 6.6 kW system can generate around 10,214 kWh annually.
What size solar system do I need in Rockingham? ▼
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 Rockingham? ▼
A 6.6 kW solar system in Rockingham costs approximately $8,200 before rebates. Rockingham is in STC Zone 2, which provides a rebate of $3,159 on a 6.6 kW system. After rebates, expect to pay around $5,041.
What is the payback period for solar in Rockingham? ▼
A 6.6 kW solar system in Rockingham has an estimated payback period of 3.5 years, based on 5.3 peak sun hours per day and annual savings of $1,440. After the payback period, the system continues generating free electricity for its remaining 20+ year lifespan.
Do I need council approval for solar in Rockingham? ▼
In Western Australia, most residential solar installations are considered exempt development. Heritage-listed properties or certain zones in Rockingham may require approval. Your installer will confirm during the site assessment.
Nearby Suburbs
Solar installers in suburbs near Rockingham.
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.