Residential Calculator
See what solar could save your home
Adjust the sliders to estimate system size, payback period, and lifetime savings.
Monthly Electric Bill$220
$50$800
Daily Peak Sun Hours5.0 hrs
3 (cloudy)7 (desert SW)
Electricity Rate$0.17/kWh
$0.08$0.40
Recommended System Size10.9 kW
Estimated System Cost$32,728
Estimated Annual Savings
$2,640
Estimated Payback Period
12.4 years
2026 residential avg: 9–13 years
25-Year Net Savings
$33,272
*Estimates based on 2026 national averages. The 30% residential federal tax credit expired at the end of 2025 and is not included. Actual results vary by location, roof orientation, shading, utility rates, and any remaining state or utility incentives.
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