Illinois Electricity: Generation Mix and Retail Prices
Illinois generated 193 TWh of electricity in 2025, 50% of it from nuclear. The average retail price was 13.74 US cents/kWh in 2025. These are EIA statistics for 2025, with monthly figures through June 2026; they are not real time.
Key Facts
- Illinois generated 193 TWh of electricity in 2025, the 5th most of the 51 states and DC.
- Nuclear was the largest source of Illinois's electricity in 2025, at 50.5% of generation.
- Gas was the second largest source of Illinois's electricity in 2025, at 16.8% of generation.
- Illinois's electricity generation rose from 179 TWh in 2001 to 193 TWh in 2025.
- The average retail price of electricity in Illinois was 13.74 US cents/kWh in 2025, the 17th highest of the 51 states and DC.
- Residential customers in Illinois paid an average of 17.69 US cents/kWh in 2025.
- Illinois generated 16.7 TWh of electricity in June 2026.
Key Figures
| Measure | Value | As of / source |
|---|---|---|
| Total generation | 193 TWh | 2025 · EIA |
| Generation rank | 5 of 51 | 2025 · EIA |
| Average retail price, all sectors | 13.74 US cents/kWh | 2025 · EIA |
| Price rank, highest first | 17 of 51 | 2025 · EIA |
| Retail sales | 135 TWh | 2025 · EIA |
| Retail customers | 6,073,192 | 2025 · EIA |
| Retail revenue | USD 18,603 million | 2025 · EIA |
Generation Mix, 2025
| Source | Generation | Share |
|---|---|---|
| Nuclear | 97.7 TWh | 50.5% |
| Gas | 32.6 TWh | 16.8% |
| Coal | 30.9 TWh | 16.0% |
| Wind | 25.0 TWh | 12.9% |
| Solar | 6.49 TWh | 3.4% |
| Bioenergy | 252 GWh | 0.1% |
| Other | 214 GWh | 0.1% |
| Other fossil | 185 GWh | 0.1% |
| Hydro | 89.3 GWh | 0.0% |
| Oil | 30.9 GWh | 0.0% |
Source: U.S. Energy Information Administration (EIA). (US Government work, public domain) Data as of 2025. Utility scale generation, all sectors; small scale solar is not included.
Year by Year
EIA annual statistics, 2001 to 2025Annual statistics through 2025, TWh
| Year | Nuclear | Gas | Coal | Wind | Solar |
|---|---|---|---|---|---|
| 2001 | 92.4 TWh | 4.61 TWh | 79.6 TWh | n/a | n/a |
| 2002 | 90.9 TWh | 9.08 TWh | 86.7 TWh | n/a | n/a |
| 2003 | 94.7 TWh | 3.90 TWh | 88.0 TWh | 18.0 GWh | n/a |
| 2004 | 92.0 TWh | 3.39 TWh | 94.4 TWh | 78.1 GWh | n/a |
| 2005 | 93.3 TWh | 7.11 TWh | 92.3 TWh | 141 GWh | n/a |
| 2006 | 94.2 TWh | 5.28 TWh | 91.6 TWh | 255 GWh | n/a |
| 2007 | 95.7 TWh | 7.54 TWh | 95.3 TWh | 664 GWh | n/a |
| 2008 | 95.2 TWh | 4.26 TWh | 96.6 TWh | 2.34 TWh | n/a |
| 2009 | 95.5 TWh | 4.49 TWh | 90.0 TWh | 2.82 TWh | 0.02 GWh |
| 2010 | 96.2 TWh | 5.72 TWh | 93.6 TWh | 4.45 TWh | 14.1 GWh |
| 2011 | 95.8 TWh | 5.96 TWh | 90.0 TWh | 6.21 TWh | 14.1 GWh |
| 2012 | 96.4 TWh | 11.2 TWh | 80.8 TWh | 7.73 TWh | 30.7 GWh |
| 2013 | 97.1 TWh | 6.83 TWh | 87.9 TWh | 9.63 TWh | 52.1 GWh |
| 2014 | 97.9 TWh | 5.47 TWh | 87.3 TWh | 10.1 TWh | 50.1 GWh |
| 2015 | 97.3 TWh | 10.9 TWh | 73.8 TWh | 10.7 TWh | 49.4 GWh |
| 2016 | 98.6 TWh | 17.5 TWh | 59.3 TWh | 10.7 TWh | 48.8 GWh |
| 2017 | 97.2 TWh | 15.0 TWh | 58.0 TWh | 12.3 TWh | 52.1 GWh |
| 2018 | 98.1 TWh | 17.2 TWh | 59.6 TWh | 11.9 TWh | 66.0 GWh |
| 2019 | 98.7 TWh | 21.3 TWh | 48.8 TWh | 14.5 TWh | 62.0 GWh |
| 2020 | 100 TWh | 24.5 TWh | 31.2 TWh | 16.2 TWh | 78.9 GWh |
| 2021 | 97.0 TWh | 20.7 TWh | 43.3 TWh | 19.1 TWh | 513 GWh |
| 2022 | 98.9 TWh | 19.8 TWh | 40.6 TWh | 23.5 TWh | 1.55 TWh |
| 2023 | 97.6 TWh | 28.4 TWh | 27.1 TWh | 21.8 TWh | 1.91 TWh |
| 2024 | 99.2 TWh | 30.1 TWh | 27.0 TWh | 24.9 TWh | 3.06 TWh |
| 2025 | 97.7 TWh | 32.6 TWh | 30.9 TWh | 25.0 TWh | 6.49 TWh |
| Year | Generation | Largest source | Average retail price |
|---|---|---|---|
| 2025 | 193 TWh | Nuclear 50.5% | 13.74 US cents/kWh |
| 2024 | 185 TWh | Nuclear 53.6% | 12.21 US cents/kWh |
| 2023 | 178 TWh | Nuclear 54.9% | 11.75 US cents/kWh |
| 2022 | 185 TWh | Nuclear 53.4% | 11.94 US cents/kWh |
| 2021 | 182 TWh | Nuclear 53.4% | 10.14 US cents/kWh |
| 2020 | 173 TWh | Nuclear 57.8% | 9.75 US cents/kWh |
| 2019 | 184 TWh | Nuclear 53.5% | 9.56 US cents/kWh |
| 2018 | 188 TWh | Nuclear 52.2% | 9.60 US cents/kWh |
| 2017 | 184 TWh | Nuclear 52.9% | 9.49 US cents/kWh |
| 2016 | 187 TWh | Nuclear 52.6% | 9.38 US cents/kWh |
Source: U.S. Energy Information Administration (EIA). (US Government work, public domain) Data as of 2025.
Retail Electricity Prices
Average revenue per kWh sold, 2001 to 2025Annual statistics through 2025, US cents/kWh
| Year | All sectors | Residential | Commercial | Industrial |
|---|---|---|---|---|
| 2001 | 6.90 US cents/kWh | 8.71 US cents/kWh | 7.40 US cents/kWh | 4.65 US cents/kWh |
| 2002 | 6.94 US cents/kWh | 8.39 US cents/kWh | 7.52 US cents/kWh | 4.89 US cents/kWh |
| 2003 | 6.86 US cents/kWh | 8.38 US cents/kWh | 7.30 US cents/kWh | 4.86 US cents/kWh |
| 2004 | 6.80 US cents/kWh | 8.37 US cents/kWh | 7.54 US cents/kWh | 4.65 US cents/kWh |
| 2005 | 6.95 US cents/kWh | 8.34 US cents/kWh | 7.75 US cents/kWh | 4.61 US cents/kWh |
| 2006 | 7.07 US cents/kWh | 8.42 US cents/kWh | 7.95 US cents/kWh | 4.69 US cents/kWh |
| 2007 | 8.46 US cents/kWh | 10.12 US cents/kWh | 8.57 US cents/kWh | 6.61 US cents/kWh |
| 2008 | 9.23 US cents/kWh | 11.07 US cents/kWh | 9.25 US cents/kWh | 7.34 US cents/kWh |
| 2009 | 9.15 US cents/kWh | 11.27 US cents/kWh | 9.04 US cents/kWh | 7.01 US cents/kWh |
| 2010 | 9.13 US cents/kWh | 11.52 US cents/kWh | 8.88 US cents/kWh | 6.82 US cents/kWh |
| 2011 | 8.97 US cents/kWh | 11.78 US cents/kWh | 8.64 US cents/kWh | 6.42 US cents/kWh |
| 2012 | 8.40 US cents/kWh | 11.37 US cents/kWh | 7.99 US cents/kWh | 5.80 US cents/kWh |
| 2013 | 8.26 US cents/kWh | 10.63 US cents/kWh | 8.14 US cents/kWh | 5.94 US cents/kWh |
| 2014 | 9.36 US cents/kWh | 11.91 US cents/kWh | 9.26 US cents/kWh | 6.85 US cents/kWh |
| 2015 | 9.40 US cents/kWh | 12.50 US cents/kWh | 9.02 US cents/kWh | 6.67 US cents/kWh |
| 2016 | 9.38 US cents/kWh | 12.54 US cents/kWh | 9.02 US cents/kWh | 6.51 US cents/kWh |
| 2017 | 9.49 US cents/kWh | 12.95 US cents/kWh | 9.09 US cents/kWh | 6.47 US cents/kWh |
| 2018 | 9.60 US cents/kWh | 12.77 US cents/kWh | 9.12 US cents/kWh | 6.80 US cents/kWh |
| 2019 | 9.56 US cents/kWh | 13.03 US cents/kWh | 9.08 US cents/kWh | 6.52 US cents/kWh |
| 2020 | 9.75 US cents/kWh | 13.04 US cents/kWh | 9.15 US cents/kWh | 6.70 US cents/kWh |
| 2021 | 10.14 US cents/kWh | 13.18 US cents/kWh | 9.65 US cents/kWh | 7.30 US cents/kWh |
| 2022 | 11.94 US cents/kWh | 15.65 US cents/kWh | 11.32 US cents/kWh | 8.57 US cents/kWh |
| 2023 | 11.75 US cents/kWh | 15.71 US cents/kWh | 11.24 US cents/kWh | 8.20 US cents/kWh |
| 2024 | 12.21 US cents/kWh | 15.87 US cents/kWh | 11.81 US cents/kWh | 8.83 US cents/kWh |
| 2025 | 13.74 US cents/kWh | 17.69 US cents/kWh | 13.07 US cents/kWh | 10.14 US cents/kWh |
| Sector, 2025 | Average price | Sales | Customers |
|---|---|---|---|
| All sectors | 13.74 US cents/kWh | 135 TWh | 6,073,192 |
| Residential | 17.69 US cents/kWh | 46.6 TWh | 5,419,302 |
| Commercial | 13.07 US cents/kWh | 46.3 TWh | 648,402 |
| Industrial | 10.14 US cents/kWh | 41.9 TWh | 5,485 |
| Transportation | 8.85 US cents/kWh | 543 GWh | 3 |
Prices are average revenue per kWh sold, including delivery charges and taxes collected by utilities, in nominal US cents.
Source: U.S. Energy Information Administration (EIA). (US Government work, public domain) Data as of 2025.
Month by Month
EIA monthly statistics, preliminary for recent months| Month | Generation | Average price, all sectors | Residential price |
|---|---|---|---|
| June 2026 | 16.7 TWh | 15.08 US cents/kWh | 19.89 US cents/kWh |
| May 2026 | 14.8 TWh | 15.88 US cents/kWh | 23.85 US cents/kWh |
| April 2026 | 15.2 TWh | 14.31 US cents/kWh | 20.47 US cents/kWh |
| March 2026 | 15.5 TWh | 13.59 US cents/kWh | 18.86 US cents/kWh |
| February 2026 | 14.9 TWh | 13.88 US cents/kWh | 17.83 US cents/kWh |
| January 2026 | 18.2 TWh | 13.16 US cents/kWh | 16.36 US cents/kWh |
| December 2025 | 17.5 TWh | 13.36 US cents/kWh | 17.07 US cents/kWh |
| November 2025 | 15.0 TWh | 13.73 US cents/kWh | 18.31 US cents/kWh |
| October 2025 | 15.9 TWh | 14.06 US cents/kWh | 18.74 US cents/kWh |
| September 2025 | 14.6 TWh | 14.58 US cents/kWh | 19.05 US cents/kWh |
| August 2025 | 16.9 TWh | 14.55 US cents/kWh | 18.06 US cents/kWh |
| July 2025 | 18.6 TWh | 14.28 US cents/kWh | 17.22 US cents/kWh |
Source: U.S. Energy Information Administration (EIA). (US Government work, public domain) Data as of June 2026.