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LAST UPDATED: MARCH 2026 · DATA: CLEAN ENERGY REGULATOR & STATE SOURCES
Baulkham Hills solar fact
Baulkham Hills has Sydney's highest 10kW+ system installation rate — 41% of all installs exceed 10kW — reflecting the Hills District's unique combination of large rooftops, dual-income families, and a competitive installer market that makes big systems cost-effective
Estimated Monthly Output — 6.6kW
kWh/month · peak: Dec (539 kWh)
Solar in Baulkham Hills — What You Need to Know
Baulkham Hills sits in the heart of the Hills District on Castle Hill's western slopes, a suburb built from the 1970s through the 2000s with the large brick homes on 700–1,000m² lots that are the solar industry's ideal customer profile. The Hills District has Sydney's most competitive installer market — dozens of CEC-accredited businesses serve the area, keeping pricing consistently below Sydney averages despite the strong demand. Baulkham Hills' demographics are the quintessential Hills family: dual-income professionals with children, high mortgage debt that creates motivation to reduce ongoing costs, and above-average technology literacy. The suburb's inland Hills position (6km west of the Lane Cove River valley) gives it genuine solar advantages: lower marine influence than coastal suburbs, minimal fog, and 4.6 peak sun hours daily. Hills Shire Council's planning framework is straightforward and installer-friendly, with a high-volume approval system that processes residential solar applications in 48 hours.
Solar Panel Cost in Baulkham Hills 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 Baulkham Hills
How much do solar panels cost in Baulkham Hills?
A 6.6kW system in Baulkham Hills 2153 costs $4224–$5664 after federal STC rebates in 2026.
Is solar worth it in Baulkham Hills?
Baulkham Hills earns a A- (Very Good) solar grade with a score of 83/100. 34% of homes here already have solar.
What size solar system for Baulkham Hills?
6.6kW suits most Baulkham Hills 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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