Solar Energy in Dee Why
Dee Why is located at 33.8°S, 151.3°E in Australia. Here's what solar energy looks like for homeowners in this area.
Annual Irradiance
1,814
kWh/m²
Peak Sun Hours
4.3
hrs/day
2.5 kWp Output
3,900
kWh/year
Solar Score
95
/ 100
What does this mean for your roof?
Dee Why receives approximately 1,814 kWh/m² of solar irradiance per year, which translates to 4.3 peak sun hours per day. This is excellent for residential solar energy production.
With a solar score of 95/100, Dee Why ranks #675 of 1455 cities in Australia for solar potential in our atlas.
A typical 2.5 kWp residential solar system (6 panels) in Dee Why would produce approximately 3,900 kWh per year, sized for the average household in Australia.
The best months for solar production in Dee Why are November – February, while the lowest production occurs during May – July. Being in the southern hemisphere, north-facing roofs capture the most annual sunlight.
Estimated savings in Dee Why
System Cost
A$3,380
2.5 kWp, before incentives
Annual Savings
~A$845
At A$0.386/kWh
Payback Period
~4 years
Before local incentives
25-Year Net Result
~A$23,620
Savings minus system cost
These are approximate figures based on a standardized household consumption of 5,000 kWh/year and an estimated electricity rate of A$0.386/kWh in Australia. Local incentives may reduce the upfront cost — check current subsidy, tax-credit, or VAT programs in Australia, as these can meaningfully shorten the payback period.
Figures are estimates based on typical system assumptions and the latest available electricity-price and billing data for Australia. Actual costs, tariffs, net-metering rules, and incentives vary by utility and change over time — confirm with a local installer or energy authority before making decisions.
How solar billing works in Australia
Exports and imports are priced separately, usually at different rates.
In Australia, rooftop solar appears to fall under a net-billing-style approach, where the energy you export and the energy you import are typically valued separately rather than simply cancelling out. Exports are often credited at a rate that may be lower than the retail price you pay for imported power, which generally rewards using your own generation as it is produced. The precise export and import prices vary by region and utility and change over time, so they should be confirmed locally.
Solar incentives in Australia
Small-scale Renewable Energy Scheme (SRES) — STCs
rebateEstimateEligible small-scale solar systems can create Small-scale Technology Certificates (STCs), which are typically assigned to the installer and discounted off the upfront purchase price. The number of certificates and their value vary and the scheme is scheduled to phase down over time.
State feed-in tariffs
feed in tariffEstimatePayments for solar electricity exported to the grid are set at the state/territory and retailer level rather than nationally, and rates vary considerably. Check current feed-in tariff offers for your state and electricity retailer.
Combines a national upfront certificate scheme (SRES/STCs) with state-level feed-in tariffs that vary by location and retailer. Verify current values before relying on them.
Get your exact numbers
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Solar tips for Dee Why homeowners
Face panels north
In the southern hemisphere, north-facing panels capture the most annual sunlight. East-west split systems also work well.
Optimal tilt angle
For Dee Why, the energy-optimal panel tilt is about 32° from horizontal.
Size your system right
For the average household in Australia, a 2.5 kWp system (6 panels) covers most electricity needs. Use our calculator for a personalized estimate.
Check local incentives
Local incentives may reduce the upfront cost of residential solar — check current subsidy, tax-credit, and VAT programs with your energy authority in Australia.
Gear to prepare for solar
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Solar in other Australia cities
Frequently asked questions about solar in Dee Why
How much do solar panels cost in Dee Why?
A typical 2.5 kWp residential solar system in Dee Why, Australia costs approximately A$3,380 before incentives — this is an estimate based on typical regional pricing. Local incentives such as subsidies, tax credits, or VAT exemptions may reduce the upfront cost; check current programs in Australia.
How are solar exports valued under net billing in Australia?
Under a net-billing-style scheme, exports from your system in Australia are typically bought at one rate while the electricity you import is charged at another, and the two are usually not the same. Because the export credit may be lower than the retail import price, consuming your own solar power directly tends to be the most valuable option. Actual rates vary by region and utility and can change, so confirm the current figures with a local installer or energy authority.
How much electricity do solar panels produce in Dee Why?
A 2.5 kWp solar system in Dee Why produces approximately 3,900 kWh per year, based on 4.3 peak sun hours per day and 1,814 kWh/m² annual irradiance.
What is the solar panel payback period in Dee Why?
Based on Australia's electricity rate of A$0.386/kWh, a 2.5 kWp system in Dee Why pays for itself in approximately 4 years before incentives. After that, the electricity it generates is essentially free for the remaining panel lifespan of 25+ years.
Which direction should solar panels face in Dee Why?
In Dee Why, panels should ideally face north since it's in the southern hemisphere. The optimal tilt angle is about 32° from horizontal.
How many solar panels do I need for my home in Dee Why?
A typical household in Australia uses the equivalent of a 2.5 kWp system (6 panels). With 4.3 peak sun hours per day in Dee Why, this covers most electricity needs. Use our calculator for a personalized estimate.