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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