Calculatree

Solar Savings Calculator

See how fast solar pays for itself and what it saves over 25 years.

Inputs

Updates live as you type

How it works

Solar pays back as the up-front system cost, reduced by the federal tax credit, is recovered through avoided electric bills. Because utility rates tend to rise every year, the savings grow over the panels’ 25-plus-year life.

Frequently asked questions

Does a shorter payback always mean a better deal?

Usually, but also weigh the 25-year total. A pricier high-efficiency system can have a slightly longer payback yet larger lifetime savings if it offsets more of a rising bill.