Illinois vs Kentucky electricity prices: 17.67 ¢ against 13.13 ¢ per kWh
43 places apart: Illinois #6, Kentucky #49 of 51, the widest of 31 measures. CO2 per mwh of generation, lb Illinois 472, Kentucky 1,735; price change 2024 to 2025 Illinois +11.3%, Kentucky +2.7%. Typical bills differ by $17 a month, higher in Kentucky.
Over a year the typical energy bill differs by $206 ($127 a month in Illinois, $144 in Kentucky). Since 2015 the home price rose +41.4% in Illinois and +28.2% in Kentucky: 13.1 points more in Illinois. Against the U.S. home average Illinois sits at +2.6% and Kentucky at -23.8%.
Where the power in Illinois and Kentucky comes from
Fuels with the widest gaps, Illinois against Kentucky.
| Fuel | Illinois | Kentucky | Gap |
|---|---|---|---|
| Nuclear | 50.9% | 0.0% | 50.9 points, higher in Illinois |
| Coal | 16.1% | 65.4% | 49.3 points, higher in Kentucky |
| Wind | 13.1% | 0.0% | 13.1 points, higher in Illinois |
| Gas | 16.0% | 25.7% | 9.7 points, higher in Kentucky |
Illinois against Kentucky: widest gaps
| Measure | Illinois | Kentucky | Gap | Rank (of 51) |
|---|---|---|---|---|
| Clean share with nuclear | 67.7% | 8.7% | +58.9 points | #6 / #49 |
| CO2 per MWh of generation, lb | 472 | 1,735 | -1,263 | #40 / #3 |
| Price change 2024 to 2025 | +11.3% | +2.7% | +8.7 points | #4 / #40 |
| Nuclear share of generation | 50.9% | 0.0% | +50.9 points | #3 / #37 |
| Hydro share of generation | 0.1% | 6.0% | -5.9 points | #46 / #13 |
| Bill as share of income | 1.86% | 2.76% | -0.9 points | #41 / #9 |
| Industry price 2025, ¢/kWh | 9.63 | 6.78 | +2.85 ¢ | #14 / #45 |
| Outage minutes a year, SAIDI | 57 | 146 | -89 | #50 / #19 |
| Wind share of generation | 13.1% | 0.0% | +13.1 points | #17 / #48 |
| Average home use, kWh a month | 716 | 1,094 | -378 | #35 / #7 |
31 measures compared for Illinois and Kentucky; the CSV holds the 10 widest.
CSVIllinois and Kentucky on the map
Illinois and Kentucky: price over time
Home price, Illinois and Kentucky, 2010 to 2025: 16 rows
| Year | Illinois | Kentucky | Gap to U.S. |
|---|---|---|---|
| 2010 | 11.52 | 8.57 | -0.02 |
| 2011 | 11.78 | 9.20 | +0.06 |
| 2012 | 11.37 | 9.43 | -0.51 |
| 2013 | 10.63 | 9.79 | -1.50 |
| 2014 | 11.91 | 10.16 | -0.61 |
| 2015 | 12.50 | 10.24 | -0.15 |
| 2016 | 12.54 | 10.49 | -0.01 |
| 2017 | 12.95 | 10.85 | +0.06 |
| 2018 | 12.77 | 10.60 | -0.10 |
| 2019 | 13.03 | 10.80 | +0.02 |
| 2020 | 13.04 | 10.87 | -0.11 |
| 2021 | 13.18 | 11.50 | -0.48 |
| 2022 | 15.65 | 12.91 | +0.61 |
| 2023 | 15.71 | 12.65 | -0.29 |
| 2024 | 15.87 | 12.79 | -0.61 |
| 2025 | 17.67 | 13.13 | +0.44 |
Illinois 11.52 to 17.67 ¢ and Kentucky 8.57 to 13.13 ¢ between 2010 and 2025 (EIA).
CSVYour bill in Illinois and in Kentucky
Where Illinois and Kentucky are alike
- Price change, 2026 to date: +10.3% and +8.9%
Sources and dates: data sources.
Questions
Is Illinois or Kentucky higher on clean share with nuclear?
Illinois, by 58.9 points; they rank #6 and #49 of 51.
Is Illinois or Kentucky higher on CO2 per mwh of generation?
Kentucky, by 1,263; they rank #40 and #3 of 51.
Is Illinois or Kentucky higher on price change 2024 to 2025?
Illinois, by 8.7 points; they rank #4 and #40 of 51.
Is Illinois or Kentucky higher on nuclear share of generation?
Illinois, by 50.9 points; they rank #3 and #37 of 51.
Is Illinois or Kentucky higher on hydro share of generation?
Kentucky, by 5.9 points; they rank #46 and #13 of 51.
What would 874 kWh a month cost in Illinois and in Kentucky?
Illinois $154, Kentucky $115: $40 apart, energy only.
Where do Illinois and Kentucky match most closely?
price change, 2026 to date (+10.3% and +8.9%).