Panels Needed
Annual Output
Est. Gross Cost
How the Solar Panel Calculator Works
This calculator provides a high-level estimate of the solar system size required to meet your energy needs. It takes into account your monthly energy usage and the average peak sunlight hours your location receives. The calculation uses an industry-standard efficiency factor to account for system losses due to heat, wiring, and inverter efficiency.
Understanding the Metrics
- Recommended System Size (kW): The total capacity of your solar system needed to cover your daily energy usage.
- Panels Needed: The total number of individual solar panels required, based on the wattage per panel you specified.
- Annual Output (kWh): The estimated total energy your system will produce over a year.
- Estimated Gross Cost: The total estimated cost of purchasing and installing your system before any tax credits or incentives are applied.
- Payback Period: The estimated number of years it will take for your system's energy savings to offset its initial cost.
Is Solar Right for You?
Investing in solar panels can significantly reduce your electricity bills and carbon footprint. However, actual costs and payback periods will vary based on your local electricity rates, available government incentives, roof orientation, and specific installation requirements. We recommend consulting with local solar installers to get an accurate, customized quote.