Kentucky Solar Guide 2026

Kentucky offers modest solar economics with coal-dependent utilities and limited state incentives affecting solar adoption.

Updated March 2026 · Sources: LG&E, DSIRE, EnergySage, NREL · Research by Dana Mercer
#40 solar state Limited incentives
Avg install cost $2.85/W Before incentives · Q1 2026 · EnergySage
Electricity rate 12¢/kWh Statewide avg · EIA Jan 2026
Peak sun hrs/day 4.2 hrs State avg · NREL data
Typical payback 10-12 yrs After federal ITC
Solar rank #40 Installed capacity · SEIA 2025

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Kentucky presents moderate solar challenges: With 12¢/kWh electricity rates and 4.2 daily peak sun hours, the Bluegrass State offers reasonable solar conditions. LG&E and other utilities provide net metering, though coal dependence affects renewable energy policies.

For Louisville and Lexington residents, solar systems typically pay for themselves in 10-12 years. Limited state incentives mean returns depend primarily on federal tax credits and utility net metering.

Kentucky solar incentives (2026)

Incentive Amount Status
Federal ITC 30% of system cost Active
LG&E Net Metering Full retail rate Active
Property Tax Exemption Not available None
Sales Tax Exemption Not available None

Kentucky solar install costs (Q1 2026)

System size Gross cost After ITC Annual savings Payback
6 kW $17,100 $11,970 ~$1,020/yr ~11.7 years
8 kW $22,800 $15,960 ~$1,360/yr ~11.7 years

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