Housing calculator
Solar panel payback calculator
Estimate when your electric-bill savings could repay your net solar cost—and what the system could save over 25 years.
Your estimate will appear here
Add the three amounts on the left, then calculate. Nothing is assumed until you enter your numbers.
Estimated break-even point
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years
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Net system cost after credit
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Estimated bill savings per year
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Estimated savings after 25 years
Explain these results
- We subtract your expected tax credit from the system cost.
- We treat your current monthly electric bill as the amount solar replaces each month.
- Break-even is the net cost divided by one year of estimated bill savings.
- The 25-year figure is 25 years of estimated bill savings minus the net system cost.
This simple estimate does not include financing costs, maintenance, panel output changes, utility rate changes, fixed utility charges, or the time value of money.