Solar Panels in Dee Why
Local prices, rebates, sun and network figures for Dee Why, so you know the numbers before you talk to anyone. 17% of homes here already have solar.
New South Wales, STC Zone 3. Ausgrid network, with flexible exports available.
One Why Solar Approved installer, one free written quote, and fifteen minutes with a solar expert before you sign.
- Homes with solar in 2099
- 17%
- Peak sun hours a day
- 4.6
- Average system
- 7.5 kW
- Typical feed-in tariff, NSW
- 6.5c
- Export limit
- 10 kW
- Optimal tilt
- 34°
- Installations in 2099
- 2,901
Solar potential in Dee Why
Dee Why receives 4.6 peak sun hours per day on average. The optimal panel angle is 34° facing north.
| System | Average day | Year |
|---|---|---|
| 6.6 kW | 25.8 kWh | 9,419 kWh |
| 10 kW | 39.1 kWh | 14,272 kWh |
| 13 kW | 50.8 kWh | 18,553 kWh |
Estimated: system size times 4.6 peak sun hours (the 2099 area average) times 85% for inverter, heat and wiring losses, over 365 average days. The savings and payback above use the same output. Orientation, shading and the equipment your installer quotes change it.
Daily/Monthly System Energy Output Estimates
Here's what you can expect to generate with various sized solar power systems in the Dee Why 2099 area, assuming good quality components, a suitable rooftop and professional, accredited solar installation.
Mean daily production for 6.6kW of solar panels in Dee Why, NSW, 2099
Estimates based on 4.6 peak sun hours and 85% system efficiency. Actual output varies with panel orientation, shading, and weather.
Monthly Solar Irradiation
Average daily solar energy (kWh/m²/day) reaching the Dee Why area throughout the year compared to the Australian national average.
Based on Bureau of Meteorology solar exposure data. Actual values may vary based on weather conditions.
Solar in Dee Why vs National Average
2099 has 16.6 systems per 100 homes, -50% vs the national average (33.3).
Based on 2,901 installations, 4.6 peak sun hours, 7.5kW avg system.
thermostatInsulation impact on solar savings in Dee Why
How much of your solar generation gets consumed by heating and cooling, based on your home's insulation quality. Data sourced from NatHERS climate zone 17 (Sydney).
Higher self-consumption means less solar energy exported. In a well-insulated home, more generation is exported at the feed-in tariff rate rather than consumed by heating/cooling.
Based on ABCB NatHERS climate zone 17 load limits for a 150m² home. Actual consumption varies by home design, orientation, and occupant behaviour.
Grid connection in Dee Why
Ausgrid
Your electricity network distributor for Dee Why.
- Export limit
- 10 kW
- Flexible exports available
- Days to connect
- 10
- Typical timeframe
- Pre-approval threshold
- 10 kW+
- Systems above it need approval
Feed-in tariffs in Dee Why
Rate range in NSW
Typical usage rate in NSW: 32.0c/kWh
Use it before you export it. With the feed-in tariff at 6.5c and usage at 32.0c, every kWh you use yourself saves you 25.5c more than exporting. A battery helps you use more of it.
See what Dee Why homeowners are paying
6.6 kW systems in 2099 range from $5,200 to $7,500 fully installed, after the $1,710 federal rebate.
How to choose a solar installer in Dee Why
SAA accreditation
Only use installers accredited by Solar Accreditation Australia (SAA). Accreditation is mandatory for STC rebate eligibility.
A written quote
Get a detailed quote from a vetted local installer. Prices in 2099 range from $5,200 to $7,500 for 6.6 kW.
Tier-1 equipment
Insist on tier-1 panels and a reputable inverter. This protects your 25-year performance warranty.
Local council requirements
No approval required
Most residential solar installations in NSW are exempt under the SEPP (Exempt and Complying Development) 2008.
- Roof-mounted panels on residential buildings
- Systems under 10kW on single-phase
- No change to building structure
Your SAA installer will handle
- Grid connection application to your DNSP
- Electrical safety certificates
- STC rebate paperwork
- Meter upgrade coordination
Heritage and conservation areas. Heritage conservation areas may require Development Application (DA). If your home is heritage-listed or in a conservation area, check with your council before you sign.
Local government area
Dee Why 2099 is in the Northern Beaches council area. Your installer will handle all necessary paperwork and approvals as part of the installation process.
NSW planning portal(opens in a new tab)Solar for heritage homes
Data sources: CER, ABS, BOM, Global Solar Atlas
4.6 kWh/m²/day avg solar exposure · 2,901 installations in 2099 · 17% penetration · BOM station 14.0 km from Dee Why
Solar trends in the 2099 postcode
- Growth on last year
- -30%
- 197 installs last year
- Average system size
- 7.5 kW
- Installed in 2099
Solar FAQ for Dee Why
How much does solar cost in Dee Why 2099?
What's the payback period for solar in Dee Why?
What rebates are available in NSW?
What feed-in tariff can I get in Dee Why?
Can I export solar power in Dee Why 2099?
How do I find a good solar installer in Dee Why 2099?
Is commercial solar available in Dee Why?
Local data reviewed by

Written by
Andy McMasterSolar Installer Partner Relations
Connects homeowners with trusted, vetted solar installers across Australia. Andy works directly with installation companies to ensure quality standards and helps homeowners through the quoting process.
Learn more about Andy McMasterCheck your rebate in Dee Why
17% of homes in Dee Why already have solar. One Why Solar Approved installer, one free written quote, and fifteen minutes with a solar expert before you sign.
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