Last updated: March 2026 · Data: Clean Energy Regulator & State Sources
Solar Panels Western Australia
Western Australia has Australia's best solar conditions — Perth averages 5.8 peak sun hours per day and receives more sunshine than almost any major city on Earth. Solar panels in WA generate exceptional returns, with payback periods as short as 2–3 years.
Avg Score
85/100
Sun Hours
5.8h/day
Avg Savings
$1,900/yr
Population
2.8M
National solar ranking
WA ranks #1 of 8 states & territories
Western Australia solar cities
Browse by City
Highest rated in WA
Top Rated Suburbs
WA solar incentives 2026
Up to $3,600 off your solar system
Federal STC rebate (Zone 1) + Horizon Power HBOS subsidy for off-grid and regional WA
Solar in Western Australia: Key Facts
Find Your Western Australia Suburb
33 suburbs across 4 cities — solar grade on every card
Western Australia Solar by City
4 cities with detailed suburb guides
Solar in Western Australia: Key Facts
WA Solar Rebates 2026
Federal STC rebate (Zone 1, up to $4,200 off a 6.6kW system) — the highest national STC rebate available, reflecting WA's exceptional sun hours.
View full WA rebate guide →Solar Panel Costs in WA 2026
| System | Cost after STCs | Annual savings | Payback |
|---|---|---|---|
| 5kW | $2,600–$3,700 | $1,300+ | 3–5 yrs |
| 6.6kW ★ | $3,200–$5,000 | $1,900 | 2–5 yrs |
| 10kW | $4,200–$6,400 | $2,800+ | 2–4 yrs |
Frequently Asked Questions
How much do solar panels cost in Western Australia?
A 6.6kW solar system in WA costs $3,200–$5,000 after federal STC rebates. Western Australia is in Zone 1, qualifying for the maximum STC rebate of up to $4,200.
What solar rebates are available in Western Australia?
Federal STC rebate (Zone 1, up to $4,200 off 6.6kW) — WA qualifies for the highest national STC rebate due to its exceptional 5.8h daily sun hours.
Is solar worth it in Western Australia?
Absolutely — WA has 5.8h average daily sun, the highest of any Australian capital. A 6.6kW system saves $1,900/year with payback in just 2–3 years.