LAST UPDATED: MARCH 2026 · DATA: CLEAN ENERGY REGULATOR & STATE SOURCES
Dee Why solar fact
Dee Why beach faces due east — but the suburb's beachside homes have western rear rooftops that face the Northern Beaches escarpment, perfectly positioned to capture afternoon generation that extends the solar day by 90 minutes compared to front-of-house east-facing orientations
Estimated Monthly Output — 6.6kW
kWh/month · peak: Dec (524 kWh)
Solar in Dee Why — What You Need to Know
Dee Why is the Northern Beaches' most populous suburb, stretching from the beachfront to the escarpment backing at Dee Why Lagoon. The solar market here reflects the beaches geography: beachfront apartments dominate the primary frontage (low solar access), while the residential streets climbing toward the escarpment have the larger homes and better roof access that make solar viable. Northern Beaches Council has a supportive planning environment for solar, and the suburb's demographics are a mix of established families who have lived here for decades and new residents attracted by the beach lifestyle. Marine-grade hardware is essential within 500m of the beach and the lagoon. The coastal position means lower peak sun hours than western Sydney (4.4 versus 4.6), but the afternoon escarpment-facing rear rooftops partially compensate through extended generation windows.
Solar Panel Cost in Dee Why 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 Dee Why
How much do solar panels cost in Dee Why?
A 6.6kW system in Dee Why 2099 costs $4224–$5664 after federal STC rebates in 2026.
Is solar worth it in Dee Why?
Dee Why earns a B+ (Good) solar grade with a score of 74/100. 19% of homes here already have solar.
What size solar system for Dee Why?
6.6kW suits most Dee Why homes. Larger homes with pools or EVs should consider 10kW+. NSW's feed-in tariff is 5.5c.
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Going Solar in Dee Why
Dee Why, 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 Dee Why is moderate.
At 19% solar adoption, Dee Why is in the growth phase of solar adoption. This means solar installation is well-understood here, with competitive pricing from multiple CEC-accredited installers.
A 6.6kW solar system in Dee Why 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 Dee Why 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 Dee Why
Homeowners in Dee Why () 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 Dee Why?
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 Dee Why, 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 Dee Why
With dozens of solar installers operating in the Sydney area, choosing the right one for Dee Why 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 Dee Why — saving you the time of calling around. Every installer in our network has verified reviews and local Sydney experience.