Solar Panel ROI in Kentucky

Is solar worth it in KY?

1.8x ROI Score
14.1 yrs Payback Period
$934 Annual Savings

Key Solar Metrics for Kentucky

Solar Irradiance 4.72 kWh/m²/day
Estimated Annual Production (6kW system) 7,913 kWh
Average Electricity Rate $0.118/kWh
Average System Cost $13,200
Estimated Annual Savings $934/year
Payback Period 14.1 years
25-Year Savings $23,350

Kentucky vs National Average

Solar Irradiance 4.72 kWh/m²/day -4.8% vs national avg
National Avg Irradiance 5.12 kWh/m²/day baseline
Payback Period 14.1 years Slower than average

How We Calculated This

Our solar ROI calculations use data from the National Renewable Energy Laboratory (NREL) PVWatts API, which models solar energy production based on location-specific solar irradiance, weather patterns, and panel tilt angles. We assume a standard 6kW residential system with south-facing panels at optimal tilt.

Electricity rates are sourced from the U.S. Energy Information Administration (EIA) and represent state-level residential averages. Annual savings are calculated by multiplying estimated production by the local electricity rate. The payback period divides system cost by annual savings. The ROI score represents total 25-year savings divided by system cost.

These estimates do not include federal tax credits (currently 30% ITC), state incentives, SRECs, or utility rebates, which can significantly reduce the effective payback period. Actual results vary based on roof orientation, shading, local weather, and utility rate changes.

Compare with Nearby States

Solar Outlook for Kentucky

Kentucky receives 4.72 kWh/m²/day — 4.8% below the national average. Lower electricity rates of $0.118/kWh extend the payback to 14.1 years, though the federal 30% ITC and state incentives can meaningfully improve the economics.

Ready to Go Solar in Kentucky?

Get free, no-obligation solar quotes from top-rated installers in your area.

Get Free Solar Quotes for Kentucky