Calculate the annual yield, savings, and payback time of solar panels.
The solar panel calculator calculates the annual yield of a solar panel system, self-consumption rate, and payback time. A typical 10 kWp system produces 8,000–10,000 kWh per year depending on the location.
The calculator is free, works directly in the browser, and does not require registration. All figures are based on standard formulas and data from 2026.
Annual yield (kWh) = Panel power (kWp) × Peak sun hours (h/year, varies by location) × efficiency.
Fill in the fields of the calculator with your information and press the calculate button – the result will be displayed immediately. Try different values to compare options.
10 kWp with peak hours 1,000 h, efficiency 0.85 → yield 8,500 kWh/year. Price $0.18/kWh → savings $1,530/year.
Enter your own numbers into the calculator to get a personalized result. The calculator is designed for quick use in everyday situations.
The calculator is needed to support decision-making, budgeting, and cost comparisons. Getting accurate references quickly makes everyday life easier.
The result is an estimate – for important financial or construction decisions, we recommend consulting a professional.
Calculate the annual yield, savings, and payback time of solar panels. Fill in the requested information in the form, and the solar panel calculator will show the result instantly.
Yes, the solar panel calculator is completely free and does not require registration. All FiksuLaskuri construction and home calculators are free of charge.
No. The calculations are done entirely in your browser and the data you enter is not sent or stored on the server.
The solar panel calculator provides a good starting point for purchases, often with a small margin for error. For larger projects, it's advisable to request precise measurements and quotes from a professional.
Yes – at the bottom of the page, you can see other calculators related to the same topic that may also interest you.