LAST UPDATED: MARCH 2026 · DATA: CLEAN ENERGY REGULATOR & STATE SOURCES
Kellyville solar fact
Kellyville's Ridge estate has Sydney's highest cul-de-sac solar density — a 2019 community information event at Kellyville Ridge Public School led to 340 installations within 8 months, driven by parents comparing installer quotes through the school's Facebook group
Estimated Monthly Output — 6.6kW
kWh/month · peak: Dec (536 kWh)
Solar in Kellyville — What You Need to Know
Kellyville is the Hills District's established residential heartland, a suburb of 1990s–2010s brick homes that bridges the gap between older Hills suburbs like Baulkham Hills and the newer master-planned communities of Rouse Hill and The Ponds. The suburb's solar market is characterised by its strong community social networks centred on the suburb's primary schools — the Kellyville Ridge and Kellyville public school communities have become de facto solar information exchanges where parents compare quotes, share installer experiences, and coordinate installation timing. Hills Shire Council's streamlined approval process handles the suburb's high installation volume efficiently. The Kellyville Ridge precinct's elevated position gives excellent solar access across north-facing lots, and the suburb's large-format brick homes on 500–700m² lots support 8–13kW systems comfortably.
Solar Panel Cost in Kellyville 2026
| System | Cost after STCs | Annual savings | Feed-in |
|---|---|---|---|
| 5kW | $3590–$4224 | $1920+ | 5.5c |
| 6.6kW ★ | $4224–$5664 | $2560 | 5.5c |
| 10kW | $5491–$7363 | $3584+ | 5.5c |
FAQs — Solar in Kellyville
How much do solar panels cost in Kellyville?
A 6.6kW system in Kellyville 2155 costs $4224–$5664 after federal STC rebates in 2026.
Is solar worth it in Kellyville?
Kellyville earns a A- (Very Good) solar grade with a score of 82/100. 35% of homes here already have solar.
What size solar system for Kellyville?
6.6kW suits most Kellyville homes. Larger homes with pools or EVs should consider 10kW+. NSW's feed-in tariff is 5.5c.
Solar in Nearby Suburbs
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Going Solar in Kellyville
Kellyville, in the Sydney region of NSW, receives approximately 4.6 peak sun hours per day — above the national average of 4.2 hours. With electricity rates of approximately 33c/kWh and Zone 2 Small-scale Technology Certificates (STCs) applying in this area, the financial case for solar in Kellyville is moderate.
At 35% solar adoption, Kellyville is in the growth phase of solar adoption. 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 Kellyville costs approximately $4224–$5664 after STC rebates. At 4.6h daily sun and 33c/kWh electricity, you can expect annual savings of approximately $70 — giving a payback period of 57.1–92.9 years, followed by 20+ years of near-free electricity.
The electricity network in Kellyville is managed by Ausgrid, Endeavour Energy, or Essential Energy. Ausgrid covers most of Sydney metro. Endeavour Energy covers the western suburbs and Illawarra. Essential Energy covers regional NSW. 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 Kellyville
Homeowners in Kellyville () access the following solar incentives in 2026:
Zone 2 FEDERAL STCs
Zone 2 STCs worth approximately $2,800–$3,400 off a 6.6kW system. STCs are applied as a point-of-sale discount — your installer handles the paperwork.
STATE: NSW
Empowering Homes interest-free loans for eligible households
FEED-IN TARIFF
NSW currently offers approximately 5.5c/kWh for excess solar exported to the grid. Self-consumption saves 33c/kWh — 6.0x more than exporting.
What Size Solar System for Kellyville?
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 Kellyville, common household sizes are:
With NSW's feed-in tariff at 5.5c/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 Kellyville
With dozens of solar installers operating in the Sydney area, choosing the right one for Kellyville 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 Kellyville — saving you the time of calling around. Every installer in our network has verified reviews and local Sydney experience.