LAST UPDATED: MARCH 2026 · DATA: CLEAN ENERGY REGULATOR & STATE SOURCES
Stirling solar fact
Stirling is Perth's most populous suburb with 35,000+ residents — and its sheer scale means it represents $45M in annual solar installation activity, attracting Perth's highest number of competing CEC-accredited installers
Estimated Monthly Output — 6.6kW
kWh/month · peak: Dec (632 kWh)
Solar in Stirling — What You Need to Know
Stirling is technically Perth's largest suburb by population, sprawling across a generous slice of the northern suburbs between Karrinyup and Hamersley. The suburb's scale encompasses everything from 1960s–70s brick homes near Stirling Train Station to more recent developments towards the northern boundary — with solar suitability varying accordingly. The strongest solar market is in Stirling's established residential core: homes built between 1965–1985 on 700–850m² blocks with north-facing rooftops that have never been obstructed by neighbouring development. City of Stirling has one of Perth's largest municipal solar programs, with solar installations on council buildings functioning as visible demonstration projects. The suburb's inland position (8km from the coast) means standard hardware throughout, and the large number of competing installers operating locally keeps pricing at Perth's most competitive end.
Solar Panel Cost in Stirling 2026
| System | Cost after STCs | Annual savings | Feed-in |
|---|---|---|---|
| 5kW | $2842–$3344 | $1620+ | 2.25c |
| 6.6kW ★ | $3344–$4484 | $2160 | 2.25c |
| 10kW | $4347–$5829 | $3024+ | 2.25c |
FAQs — Solar in Stirling
How much do solar panels cost in Stirling?
A 6.6kW system in Stirling 6021 costs $3344–$4484 after federal STC rebates in 2026.
Is solar worth it in Stirling?
Stirling earns a A- (Very Good) solar grade with a score of 83/100. 38% of homes here already have solar.
What size solar system for Stirling?
6.6kW suits most Stirling homes. Larger homes with pools or EVs should consider 10kW+. WA's feed-in tariff is 2.25c.
Solar in Nearby Suburbs
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Going Solar in Stirling
Stirling, in the Perth region of WA, receives approximately 5.4 peak sun hours per day — well above the national average of 4.2 hours. With electricity rates of approximately 33c/kWh and Zone 1 Small-scale Technology Certificates (STCs) applying in this area, the financial case for solar in Stirling is moderate.
At 38% solar adoption, Stirling is already a solar leader in the region. This means experienced local installers are readily available and the grid operator has well-established processes for residential solar connections.
A 6.6kW solar system in Stirling costs approximately $3344–$4484 after STC rebates. At 5.4h daily sun and 33c/kWh electricity, you can expect annual savings of approximately $82 — giving a payback period of 48.8–79.3 years, followed by 20+ years of near-free electricity.
The electricity network in Stirling is managed by Western Power (metro Perth) or Horizon Power (regional). Western Power manages Perth's network. Export limits of 1.5–5kW apply on many residential connections — check before sizing your system. For residential systems above 5kW, a network connection application is typically required — your installer will handle this as part of the installation process.
Solar Rebates in Stirling
Homeowners in Stirling () access the following solar incentives in 2026:
Zone 1 FEDERAL STCs
Zone 1 STCs worth $3,200–$4,000 off a 6.6kW system. STCs are applied as a point-of-sale discount — your installer handles the paperwork.
STATE: WA
Distributed Energy Buyback Scheme (DEBS) provides feed-in credits for export
FEED-IN TARIFF
WA currently offers approximately 2.25c/kWh for excess solar exported to the grid. Self-consumption saves 33c/kWh — 14.7x more than exporting.
What Size Solar System for Stirling?
The right system size depends on your electricity usage. A quick rule: divide your quarterly bill by $100 to get your ideal system size in kW. For Stirling, common household sizes are:
With WA's feed-in tariff at 2.25c/kWh and electricity at 33c/kWh, the priority is maximising self-consumption rather than grid export. If your household is away during peak solar generation hours (10am–3pm), adding a battery to shift solar to evening use improves payback. See our solar battery guide for battery options and payback analysis.
Compare all system sizes — 5kW to 13kW →More Guides
How to Choose a Solar Installer in Stirling
With dozens of solar installers operating in the Perth area, choosing the right one for Stirling requires a few checks. Here's what to look for:
Our free solar score tool connects you with up to 3 CEC-accredited, vetted installers in Stirling — saving you the time of calling around. Every installer in our network has verified reviews and local Perth experience.