The discounted payback period is the time it takes for a project to pay off its initial investment. It's used in capital budgeting to determine a project's feasibility.

Use a solar panel cost calculator using this formula to calculate the payback period. Plenty of metrics can help you decide which solar option is best for you, but studies show most solar shoppers ...

How to calculate your solar payback period If you want to get a rough idea of your potential solar payback period, here's a way to do it.