Solar panel cost and savings in Wonthaggi, Victoria
Wonthaggi sits at 38.61°S, 145.59°E in Victoria, Australia. A typical residential solar system there is sized at 6.6 kW, laid out as 15 panels of 440 W each, mounted at a 39 degree tilt facing the sun's midday path.
Based on PVGIS solar radiation data for Wonthaggi's coordinates, that system produces an estimated 10,108 kWh in its first year. At the local electricity price of A$0.32 per kWh (export A$0.05 per kWh, daily supply charge A$1.10), that generation is worth an estimated A$895 a year to a household with typical usage patterns for a 3-person home.
Get a solar estimate for WonthaggiIncentives in Wonthaggi
2 incentives currently apply to a system installed in Wonthaggi:
Cost and payback
Before incentives, a typical system in Wonthaggi costs an estimated A$5,940 to A$9,900 installed. After the incentives above, the estimated net cost is A$4,380 to A$8,340, and the system pays back in about 7.4 years at today's local electricity price.
These figures assume a typical 3-person household with no pool, electric vehicle or electric heating, and installation in 2026. Incentive values are provisional estimates, last verified on the date shown against each scheme, and can change. Electricity prices and incentive amounts shown here are set at the country level except where an incentive's value is itself calculated from Wonthaggi's local solar zone, as noted above; only the production and payback figures are calculated specifically for Wonthaggi's coordinates.
Frequently asked questions
How much solar power can a typical home in Wonthaggi generate?
A typical 6.6 kW system (15 panels) in Wonthaggi produces an estimated 10,108 kWh a year, based on PVGIS solar radiation data for its coordinates.
What does solar cost in Wonthaggi after incentives?
Before incentives, a typical system costs A$5,940 to A$9,900 installed. After the incentives listed on this page, the estimated net cost is A$4,380 to A$8,340.
How long does solar take to pay back in Wonthaggi?
At local electricity prices, a typical system in Wonthaggi pays back in about 7.4 years, with estimated annual savings of A$895.
What solar incentives apply in Wonthaggi?
Small-scale Technology Certificates (STCs), Federal battery rebate estimate. Each is detailed above with its estimated value, eligibility and whether it is a national or local scheme.