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How Karratha compares with nearby suburbs

Estimated 6.6kW output uses each suburb's own sun-hours (derived from its latitude and climate zone), with the same rebate and tariff assumptions across the board.

SuburbEst. annual outputInstalled cost after rebatesEst. annual savings
Karratha this page11,016 kWh$2,700-$6,000$1,163-$1,540
Port Hedland11,078 kWh$2,700-$6,000$1,170-$1,549
Newman10,750 kWh$2,700-$6,000$1,135-$1,503
Tom Price10,791 kWh$2,700-$6,000$1,140-$1,509
Exmouth10,853 kWh$2,700-$6,000$1,146-$1,517

Solar Panel Cost in Karratha, WA

Karratha (6714) is a regional area in Western Australia with a warm subtropical climate with good solar potential. A 6.6kW solar system in Karratha costs $2,700 to $6,000 after all available rebates, generating approximately 11,016 kWh per year. Very good solar conditions for most of the year. Summer output will be strong. Winter will see a moderate drop but you will still generate meaningful electricity even on shorter days.

Being a regional area, Karratha may have fewer local solar installers. Some metro-based installers charge travel fees for installations outside the metro area, which can add $300-$600 to the total cost.

With 5.38 average peak sun hours per day, a 6.6kW system in Karratha will generate approximately 11,016 kWh per year.

Western Australia has the lowest feed-in tariff in the country (around 2.25c/kWh from Synergy). This means maximising self-consumption is critical. Consider a battery or shifting usage to daytime.

$2,700-$6,000
6.6kW after rebates
$6,200-$9,500
Before rebates
11,016 kWh
Annual output (6.6kW)
$1163-$1540
Annual savings

Recommended Solar Brands for Karratha

Jinko Solar

Budget-conscious homeowners wanting proven reliability at the best price

Efficiency: 22%Warranty: 25yrTier: budget
$900-$1300
per kW installed

LONGi

Homeowners wanting top-tier technology at a mid-range price point

Efficiency: 22.3%Warranty: 25yrTier: mid-range
$1000-$1500
per kW installed

Trina Solar

Those wanting a proven, bankable brand with strong warranty at a competitive price

Efficiency: 22.1%Warranty: 25yrTier: budget
$950-$1400
per kW installed

Canadian Solar

Homeowners wanting a non-Chinese headquartered Tier-1 brand at a competitive price

Efficiency: 22%Warranty: 25yrTier: mid-range
$950-$1350
per kW installed

SunPower

Homeowners wanting the absolute best panels with the longest warranty, especially on limited roof space

Efficiency: 22.8%Warranty: 40yrTier: premium
$1500-$2200
per kW installed

Frequently Asked Questions

How much does solar cost in Karratha?
A 6.6kW solar system in Karratha costs between $6,200 and $9,500 installed before rebates. After federal STCs and any Western Australia rebates, expect to pay $2,700 to $6,000. Larger systems (10kW+) cost more upfront but produce proportionally more electricity.
What rebates are available for solar in Karratha?
Karratha residents can access federal Small-scale Technology Certificates (STCs) worth $2,500-$3,800 depending on system size and climate zone. This is applied as a point-of-sale discount by your installer. Check current Western Australia programs for additional incentives.
How much electricity will solar produce in Karratha?
With 5.38 peak sun hours per day, a 6.6kW system in Karratha will generate approximately 11,016 kWh per year. Very good solar conditions for most of the year. Summer output will be strong. Winter will see a moderate drop but you will still generate meaningful electricity even on shorter days.
What is the payback period for solar in Karratha?
Based on current electricity prices and feed-in tariffs in Western Australia, a 6.6kW system in Karratha will save $1,163-$1,540 per year. At an after-rebate cost of $2,700-$6,000, the payback period is typically 3-6 years.
What size solar system do I need in Karratha?
For an average Karratha household using 20-25kWh per day: a 6.6kW system covers most needs. Larger households (30kWh+) should consider 10kW or 13.3kW systems. If you have or plan to add an EV charger or heat pump hot water, size up. Your sunny climate means a standard-sized system will perform well.
What direction should solar panels face in Karratha?
North-facing is ideal for maximum annual output in Karratha. West-facing produces more in the afternoon (good if you use more power in the evening). East-facing produces more in the morning. Even a flat roof works well. Avoid south-facing if possible, as output can be 20-30% less than north-facing in Western Australia.

Related Guides

Heat Pump vs Solar Hot WaterComplete Rebates Guide

Also in Karratha

Heat Pump Hot Water Cost in KarrathaWestern Australia Solar Rebates

Nearby Suburbs

Port HedlandNewmanTom PriceExmouth
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