Is solar worth it in 40215 (Louisville, KY)?

With an average payback period of 13.6 years and 25-year savings of $24,300, solar panels in Louisville, Kentucky can be worthwhile with available incentives.

How much do solar panels cost in 40215?

The average cost of a 6kW residential solar system in Louisville, Kentucky is $13,200 before incentives. The federal 30% Investment Tax Credit reduces this to about $9,240.

How much solar electricity does 40215 get?

Louisville receives 4.7 kWh/m²/day of solar irradiance. A 6kW system in zip code 40215 produces approximately 8,234 kWh per year.

Solar Panel ROI in 40215

Louisville, Kentucky — Is solar worth it here? Here's what the data says.

1.8x ROI Score

13.6 yrs Payback Period

$972/yr Annual Savings

$24,300 25-Year Savings

Your savings estimate

$ /mo bill

Annual savings $972

Payback 13.6 yrs

25-yr savings $24,300

Solar Calculator for 40215 (Louisville)

Adjust values to see your personalized solar ROI estimate for Louisville, Kentucky.

System Size

System Cost

Electricity Rate

$ /kWh

Solar Irradiance

4.7 kWh/m²/day

Based on NREL data for Louisville, KY

ROI Score 1.8x

Annual Production 8,234 kWh

Annual Savings $972

Payback Period 13.6 years

25-Year Savings $24,300

After 30% ITC $9,240

Solar Data for 40215 – Louisville, KY

Solar Irradiance 4.7 kWh/m²/day -5.2% vs national avg

vs Kentucky Avg +0% State avg: 4.72 kWh/m²/day

Electricity Rate $0.118/kWh Kentucky average rate

Annual Production 8,234 kWh 6kW system estimate

Louisville receives 4.7 kWh/m²/day (5.2% below national avg). Despite $0.118/kWh electricity, the 13.6-year payback reflects regional challenges. The 30% federal ITC and state programs can significantly improve the ROI.

Solar Incentives for Louisville, Kentucky

★

Federal Investment Tax Credit (ITC)

Claim 30% of your system cost as a federal tax credit. On a $13,200 system, that's $3,960 back.

★

Net Metering

Most Kentucky utilities offer net metering — sell excess electricity back to the grid at retail rates, accelerating your payback.

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Kentucky State Programs

Check with the Kentucky energy office for additional rebates, tax exemptions, and low-interest solar financing programs available in Louisville.

40215 vs Kentucky Average

Solar Irradiance

40215: 4.7 KY avg: 4.72

Payback Period

40215: 13.6 yrs KY avg: 14.1 yrs

Annual Savings

40215: $972 KY avg: $934

25-Year Savings

40215: $24,300 KY avg: $23,350

See the full Kentucky solar guide for statewide data and incentives.

Nearby Zip Codes — Solar Comparison

40214 Louisville, KY 1.8x ROI 13.6 yr payback 40201 Louisville, KY 1.8x ROI 13.6 yr payback 40211 Louisville, KY 1.8x ROI 13.6 yr payback 40505 Lexington, KY 1.8x ROI 13.6 yr payback 40517 Lexington, KY 1.8x ROI 13.6 yr payback