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Solar Payback Calculator
What is Solar Payback Calculator?
A solar payback calculator estimates how long a solar system takes to repay its cost by comparing the system cost with yearly electricity savings. It shows yearly generation, savings and a simple 25-year total.
How Solar Payback Calculator helps
- Gives a first estimate of solar economics
- Uses your own cost and tariff
- Shows yearly generation
How to use Solar Payback Calculator
- Enter your numbers in the fields (sample values are pre-filled).
- Read the results, which update instantly.
- Change one input at a time to compare scenarios.
Example
A 5 kW system producing 1,400 kWh per kW a year generates about 7,000 kWh annually.
Frequently asked questions
Is the yearly output figure accurate?
It is an editable placeholder; use a local estimate from an installer.
Does it include degradation or incentives?
No. Real results will differ.
Is this a quote?
No. Get quotes from qualified installers.
Results depend entirely on the prices and factors you enter. Real-world costs, emissions and savings vary.
Last updated October 7, 2026.