Solar Energy Data for Kentucky

Detailed solar irradiance and production data for 2 cities in Kentucky. The state averages 4.12 kWh/m²/day GHI — Average solar resources.

Kentucky near the national average for solar energy production. Solar installations are economically viable across most of Kentucky, particularly where electricity rates are above the national average.

Kentucky Overview

Cities with data
2
Avg. GHI
4.12 kWh/m²/day
Solar Rating
Average
Best City
Louisville (4.12 kWh/m²/d)

Cities in Kentucky — Ranked by Solar Potential

2 cities
Rank City GHI (kWh/m²/d) Peak Sun Hours 5kW Production Est. Annual Savings Payback
#1 Louisville (pop. 633,045) 4.12 4.7 6,862 kWh $817 12.9 yrs
#2 Lexington (pop. 323,780) 4.11 4.7 6,804 kWh $810 13.0 yrs

Analyze any Kentucky location

These figures are city-level averages. For your exact address in Kentucky, use SolarScope's Site Studio to account for roof orientation, shading, and your utility rate.