This is a simplified calculator to estimate annual energy production and return on investment for a solar electric (photovoltaic) system installed in Southwest Florida. It is not a substitute for a professional analysis of your home or business. You can use this calculator to determine estimated system performance based on the assumptions in blue. This calculator is for use in Southwest Florida ONLY. Results will be invalid for any other location.

Productions estimates are based roughly on National Renewable Energy Labs’ PVWATTS calculator. This calculator is provided as-is, and although every attempt has been made to ensure accuracy and reasonableness, Florida Solar Design Group accepts no responsibility for the use of this tool. The investment returns are estimated and are the result of several assumptions. Investment results may vary. For more detailed information about how this calculator works, please contact us.