Lower electric rates extend payback; net metering replaced by net billing in 2021.
Avg residential rate12¢ / kWh
Avg system cost$2.80 / W ($33,600 for 12 kW)
Peak sun hours / day4.4
Net meteringSuccessor Tariff
State tax creditNone
Federal tax credit30% (Residential Clean Energy Credit, through 2032)
Property tax exemptionNo
Sales tax exemptionNo
Kentucky payback by monthly electric bill
The bigger your current bill, the faster solar pays back. Here's how the numbers work out for a typical Kentucky home:
Monthly bill
System size
Gross cost
Federal credit
State credit
Net cost
Year-1 savings
Payback
$100
7.6 kW
$21,224
−$6,367
$0
$14,857
$1,139
11.4 yr
$150
11.4 kW
$31,864
−$9,559
$0
$22,305
$1,711
11.4 yr
$200
15.2 kW
$42,476
−$12,743
$0
$29,733
$2,280
11.4 yr
$300
20 kW
$56,000
−$16,800
$0
$39,200
$3,006
11.4 yr
Assumes 95% bill offset, 3% annual rate inflation, 0.5% annual panel degradation, and a 25-year system life.
Calculate your exact Kentucky solar payback
Enter your real monthly electric bill to see your personalized payback estimate.
Best path forward in Kentucky
The fastest, free way to see real installer quotes for your roof is to use a marketplace like EnergySage. You'll get up to 4 competing bids from local pros without phone harassment.
Frequently asked questions about solar in Kentucky
How long does it take for solar panels to pay for themselves in Kentucky?
For a typical Kentucky home with a $150/month electric bill, a 11.4 kW system pays for itself in about 11.4 years. Higher bills (or higher state incentives) shorten this; lower bills lengthen it.
What's the average cost of solar panels in Kentucky?
Kentucky installers average $2.80 per watt before incentives. A typical 12 kW system costs roughly $33,600 gross, or about $22,305 after federal and state credits.
Does Kentucky offer a state solar tax credit?
Kentucky does not offer a state-level solar tax credit. However, the 30% federal Residential Clean Energy Credit still applies, and there may be utility rebates in your service area.
Does Kentucky have net metering?
Kentucky replaced retail net metering with a successor tariff that credits exports at less than the full retail rate. Solar still pays back, but adding battery storage can recover much of the lost value.
Are solar panels worth it in Kentucky in 2026?
For most Kentucky homeowners with a monthly electric bill above $100, the answer is yes — payback typically lands between 8 and 14.8 years depending on roof orientation, shade, and incentive timing. The 30% federal credit is locked in through 2032, removing a major timing risk.