Gridly
WA 6395 · Kojonup
Solar Panel Installation in Kojonup, WA
Find a vetted solar installer in Kojonup. Compare quotes, check local solar data, and get a system designed for your roof.
Get Free Solar QuotesSolar Snapshot for Kojonup
Key data for sizing a solar system in Kojonup, WA 6395.
1,543
Population
4.4/day
Peak Sun Hours
8,480
Est. Annual Output (6.6 kW)
$1,196
Est. Annual Savings
4.2 yrs
Est. Payback (6.6 kW)
$3,159
STC Rebate (6.6 kW)
Zone 2
Dwelling Mix in Kojonup
Breakdown of dwelling types based on census data — relevant for understanding rooftop solar potential.
Houses
94%
559 dwellings
Townhouses
5%
30 dwellings
Apartments
0%
0 dwellings
Kojonup is predominantly freestanding houses, ideal for rooftop solar installation.
Solar Adoption in Kojonup 6395
Installation data from the Clean Energy Regulator, refreshed monthly.
270
Solar Systems Installed
Since 2001
6.5 kW
Avg System Size
1.7 MW
Total Installed Capacity
3
Battery Systems
Kojonup (6395) has 270 registered solar panel installations with a combined capacity of 1.7 MW. The average system size in this postcode is 6.5 kW. That's roughly 45% of dwellings with rooftop solar.
Installations fell 9% in 2025 compared to 2024's 11 systems.
Is Solar Worth It in Kojonup?
Kojonup gets 4.4 peak sun hours per day — slightly below the national average. A 6.6 kW system here would produce roughly 8,480 kWh per year, saving an estimated $1,196 annually and paying itself off in 4.2 years.
At $5,041 after rebates, the upfront cost represents 7% of Kojonup's median household income ($75,504/year). Most households finance this over 3–5 years, with loan repayments typically offset by immediate savings.
Kojonup already has strong solar uptake — roughly 45% of dwellings have rooftop solar, which is above the Western Australia average of 36%.
A 4.2-year payback is solid by Australian standards. After that, every kilowatt-hour your system generates is essentially free electricity for the remaining 15–20 years of the system’s life.
Why Install Solar in Kojonup?
Kojonup receives 4.4 peak sun hours daily. While this is lower than northern states, a well-sized system still generates significant savings. A 6.6 kW system can produce around 8,480 kWh per year, saving approximately $1,196 annually.
Kojonup has a population of 1,543 across 597 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 Kojonup is $75,504 per year. At $5,041 after rebates, a 6.6 kW system represents 7% of annual household income, with savings that continue for 20+ years after the 4.2-year payback.
With car ownership at 91% of households, many residents in Kojonup 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 Kojonup
Based on 4.4 peak sun hours/day, 31c/kWh electricity, and STC Zone 2 rebate.
| System Size | Annual Output | Annual Savings | Cost After Rebate | Payback |
|---|---|---|---|---|
| 5 kW | 6,424 kWh | $906 | $4,121 $2,379 STC rebate | 4.5 yrs |
| 6.6 kW Most popular | 8,480 kWh | $1,196 | $5,041 $3,159 STC rebate | 4.2 yrs |
| 10 kW | 12,848 kWh | $1,812 | $6,742 $4,758 STC rebate | 3.7 yrs |
| 13 kW | 16,702 kWh | $2,355 | $8,299 $6,201 STC rebate | 3.5 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 Kojonup.
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 Kojonup get? ▼
Kojonup receives approximately 4.4 peak sun hours per day, based on its warm temperate climate zone. This means a standard 6.6 kW system can generate around 8,480 kWh annually.
What size solar system do I need in Kojonup? ▼
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 Kojonup? ▼
A 6.6 kW solar system in Kojonup costs approximately $8,200 before rebates. Kojonup 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 Kojonup? ▼
A 6.6 kW solar system in Kojonup has an estimated payback period of 4.2 years, based on 4.4 peak sun hours per day and annual savings of $1,196. After the payback period, the system continues generating free electricity for its remaining 20+ year lifespan.
Do I need council approval for solar in Kojonup? ▼
In Western Australia, most residential solar installations are considered exempt development. Heritage-listed properties or certain zones in Kojonup may require approval. Your installer will confirm during the site assessment.
Nearby Suburbs
Solar installers in suburbs near Kojonup.
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.