Solar Panel Payback Calculator
Annual yield, savings and payback of a PV system.
Runs entirely in your browser. Nothing is sent anywhere.
How it works
- 1Enter your values.
- 2See the result update instantly as you type.
- 3Change any value to compare scenarios.
About this tool
Solar Panel Payback Calculator: Annual yield, savings and payback of a PV system. Type your numbers and the result is calculated instantly — no button to press, nothing to install. All math runs locally in your browser, so the values you enter are never sent anywhere.
Example
| Input | |
|---|---|
| System size (kWp) | 8 |
| Specific yield (kWh per kWp and year) | 950 |
| Self-consumption (%) | 30 |
| Electricity price per kWh | 0.32 |
| Feed-in tariff per kWh | 0.08 |
| System cost | 12,000 |
| Result | |
| Annual yield | 7,600 kWh |
| Savings + income per year | 1,155.20 |
| Payback (simple) | 10.4 Years |
| Return per year | 9.6 % |
How do I use the Solar Panel Payback Calculator?
Enter your values. See the result update instantly as you type. Change any value to compare scenarios.
Is the Solar Panel Payback Calculator free?
Yes. It is completely free with no sign-up, no usage limits and no watermark.
Is my data sent to a server?
No. Everything is calculated locally in your browser. Nothing you enter is uploaded, logged or stored.
Does it work on my phone?
Yes. It works in any modern browser on Android, iPhone, iPad, Windows, Mac and Linux — no app needed.