Solar Payback Period Calculator

Find out how many years it will take for your solar panels to pay for themselves.

What is Payback period for solar?

Total time takes for your electricity bill saving to equal the initial cost of installing solar system.

How to Calculate Your Paybac Period

The formula is straightforward. You divide the total system cost by annual saving it provides

Formula: total system cost / annual savings

If you choose include tax then we have to minus tax from system cost.

Example Calculation (2026 estimate):

• Gross System Cost: $20,000
• Federal Tax Credit (30%): -$6000
• Net Cost:$14000
• Annual Savings on Utility Bill:$2000
• Payback Period: $14000/$2000 = 7 years