trending_up
Solar Payback Calculator
Calculate how long it will take for your solar system to pay for itself and see your 25-year ROI.
Your Details
3kW15kW
$3,000$20,000
20% (mostly export)80% (home during day)
Advanced Options
Payback Period
3.7 years
Break even in year 4
$1908
Annual Savings
581%
25-Year ROI
Annual Savings Breakdown
Daily Production29.7 kWh
Annual Production10,841 kWh
Self-Consumption Savings$1388
Export Income$520
Total Annual Benefit$1908
25-Year Projection
Year 5+$2,540
Year 10+$12,079
Year 15+$21,619
Year 20+$31,159
Year 25+$40,698
How to Improve Your Payback
wb_sunny
Increase Self-Consumption
Run appliances during the day when your solar is producing. Use timers for dishwashers, washing machines, and pool pumps.
battery_charging_full
Add a Battery
Store excess solar for evening use. This increases self-consumption to 70-80% and reduces reliance on grid electricity.
schedule
Time-of-Use Tariffs
Switch to a time-of-use plan. Solar offsets the most expensive peak rates, maximising your savings per kWh.
compare
Compare Retailers
Shop around for the best feed-in tariff and electricity rates. Even small differences add up over 25 years.
Ready to Start Saving?
Get accurate quotes from CEC-accredited installers in your area and see your real payback period.
Get Free Quotesarrow_forward