Solar Energy in Greenwith
Greenwith is located at 34.8°S, 138.7°E in Australia. Here's what solar energy looks like for homeowners in this area.
Annual Irradiance
1,837
kWh/m²
Peak Sun Hours
4.3
hrs/day
2.5 kWp Output
3,950
kWh/year
Solar Score
95
/ 100
What does this mean for your roof?
Greenwith receives approximately 1,837 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, Greenwith ranks #768 of 1455 cities in Australia for solar potential in our atlas.
A typical 2.5 kWp residential solar system (6 panels) in Greenwith would produce approximately 3,950 kWh per year, sized for the average household in Australia.
The best months for solar production in Greenwith 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 Greenwith
System Cost
A$3,380
2.5 kWp, before incentives
Annual Savings
~A$851
At A$0.386/kWh
Payback Period
~4 years
Before local incentives
25-Year Net Result
~A$23,820
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
Our calculator uses NASA satellite data for your precise location — not city-level estimates. Free, instant, no signup.
Solar tips for Greenwith 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 Greenwith, the energy-optimal panel tilt is about 29° 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
Affiliate links — we may earn a commission.
Solar in other Australia cities
Frequently asked questions about solar in Greenwith
How much do solar panels cost in Greenwith?
A typical 2.5 kWp residential solar system in Greenwith, 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 Greenwith?
A 2.5 kWp solar system in Greenwith produces approximately 3,950 kWh per year, based on 4.3 peak sun hours per day and 1,837 kWh/m² annual irradiance.
What is the solar panel payback period in Greenwith?
Based on Australia's electricity rate of A$0.386/kWh, a 2.5 kWp system in Greenwith 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 Greenwith?
In Greenwith, panels should ideally face north since it's in the southern hemisphere. The optimal tilt angle is about 29° from horizontal.
How many solar panels do I need for my home in Greenwith?
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 Greenwith, this covers most electricity needs. Use our calculator for a personalized estimate.