Estimate your payback period with live incentive pricing. Adjust your state, system size, electricity rate, and install cost to see real-time results.
System Size50 kW
10 kW200 kW
Estimated Payback Period
2.4 years
Net cost of $46,526 offset by $19,392/yr in savings
System Cost
$60,000
Total Incentives
$13,475
Net Cost After Incentives
$46,526
Annual Electricity Savings
$19,392/yr
Annual Production
64,641 kWh
Frequently asked questions
What is a typical commercial solar payback period in Australia?
Most commercial solar systems pay back in 3 to 7 years, depending on the state, system size, electricity rate, and the incentives available (STCs, VEECs, or LGCs).
What factors most affect commercial solar payback?
Electricity rate, self-consumption ratio, upfront cost after STC/VEEC rebates, and demand charges. Higher rates and strong daytime consumption shorten the payback period.
Does the state I am in change my solar payback period?
Yes. Incentive zones, feed-in tariffs, and electricity prices vary by state, which can shift payback by one to three years for an otherwise identical system.
How do STCs reduce the upfront cost?
STCs are created at installation and assigned to your installer as a point-of-sale discount. The number of certificates depends on your system size, postcode zone, and the deeming period remaining to 2030. The calculator applies your zone automatically.