Solar Panel Cost & Savings Calculator
Enter your average monthly electric bill and state to get a rough estimate of the system size you'd need, what it might cost before and after the federal tax credit, and how many years it could take to pay for itself.
How this calculator works
The calculator uses your monthly bill and your state's average electricity rate to estimate how much power your home uses in a year. It then uses your state's average peak sun hours to estimate how large a system you'd need to offset that usage, and applies a national average installed price per watt to estimate cost. Learn more about each of these factors in our guides on solar panel costs, the federal tax credit, and how many panels you need.