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Built 2026-11-05 (5 November 2026)

Illinois Electricity: Generation Mix and Retail Prices

Illinois generated 192 TWh of electricity in 2025, 51% of it from nuclear. The average retail price was 13.56 US cents/kWh in 2025. These are EIA statistics for 2025, with monthly figures through August 2026; they are not real time.

Key Facts

  • Illinois generated 192 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 50.9% of generation.
  • Coal was the second largest source of Illinois's electricity in 2025, at 16.1% of generation.
  • Illinois's electricity generation rose from 179 TWh in 2001 to 192 TWh in 2025.
  • The average retail price of electricity in Illinois was 13.56 US cents/kWh in 2025, the 17th highest of the 51 states and DC.
  • Residential customers in Illinois paid an average of 17.67 US cents/kWh in 2025.
  • Illinois generated 18.7 TWh of electricity in August 2026.

Key Figures

MeasureValueAs of / source
Total generation192 TWh2025 · EIA
Generation rank5 of 512025 · EIA
Average retail price, all sectors13.56 US cents/kWh2025 · EIA
Price rank, highest first17 of 512025 · EIA
Retail sales136 TWh2025 · EIA
Retail customers6,073,3972025 · EIA
Retail revenueUSD 18,481 million2025 · EIA

Generation Mix, 2025

SourceGenerationShare
Nuclear97.7 TWh50.9%
Coal30.9 TWh16.1%
Gas30.7 TWh16.0%
Wind25.1 TWh13.1%
Solar6.68 TWh3.5%
Other210 GWh0.1%
Bioenergy206 GWh0.1%
Other fossil185 GWh0.1%
Hydro99.2 GWh0.1%
Oil34.2 GWh0.0%

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 2025
Illinois electricity generation by source, 2001 to 2025 Illinois's electricity generation by main source from 2001 to 2025, in TWh. In 2025 the largest sources were nuclear at 97.7 TWh, coal at 30.9 TWh, gas at 30.7 TWh, wind at 25.1 TWh, solar at 6.68 TWh. 0 30 60 90 120 20012006201120162021
Illinois's electricity generation by main source from 2001 to 2025, in TWh. In 2025 the largest sources were nuclear at 97.7 TWh, coal at 30.9 TWh, gas at 30.7 TWh, wind at 25.1 TWh, solar at 6.68 TWh.
Annual statistics through 2025, TWh
Illinois electricity generation by source, 2001 to 2025
YearNuclearCoalGasWindSolar
200192.4 TWh79.6 TWh4.61 TWhn/an/a
200290.9 TWh86.7 TWh9.08 TWhn/an/a
200394.7 TWh88.0 TWh3.90 TWh18.0 GWhn/a
200492.0 TWh94.4 TWh3.39 TWh78.1 GWhn/a
200593.3 TWh92.3 TWh7.11 TWh141 GWhn/a
200694.2 TWh91.6 TWh5.28 TWh255 GWhn/a
200795.7 TWh95.3 TWh7.54 TWh664 GWhn/a
200895.2 TWh96.6 TWh4.26 TWh2.34 TWhn/a
200995.5 TWh90.0 TWh4.49 TWh2.82 TWh0.02 GWh
201096.2 TWh93.6 TWh5.72 TWh4.45 TWh14.1 GWh
201195.8 TWh90.0 TWh5.96 TWh6.21 TWh14.1 GWh
201296.4 TWh80.8 TWh11.2 TWh7.73 TWh30.7 GWh
201397.1 TWh87.9 TWh6.83 TWh9.63 TWh52.1 GWh
201497.9 TWh87.3 TWh5.47 TWh10.1 TWh50.1 GWh
201597.3 TWh73.8 TWh10.9 TWh10.7 TWh49.4 GWh
201698.6 TWh59.3 TWh17.5 TWh10.7 TWh48.8 GWh
201797.2 TWh58.0 TWh15.0 TWh12.3 TWh52.1 GWh
201898.1 TWh59.6 TWh17.2 TWh11.9 TWh66.0 GWh
201998.7 TWh48.8 TWh21.3 TWh14.5 TWh62.0 GWh
2020100 TWh31.2 TWh24.5 TWh16.2 TWh78.9 GWh
202197.0 TWh43.3 TWh20.7 TWh19.1 TWh513 GWh
202298.9 TWh40.6 TWh19.8 TWh23.5 TWh1.55 TWh
202397.6 TWh27.1 TWh28.4 TWh21.8 TWh1.91 TWh
202499.2 TWh27.0 TWh30.1 TWh24.9 TWh3.06 TWh
202597.7 TWh30.9 TWh30.7 TWh25.1 TWh6.68 TWh
YearGenerationLargest sourceAverage retail price
2025 192 TWh Nuclear 50.9% 13.56 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 2025
Illinois average retail electricity price by sector, 2001 to 2025 Average retail electricity prices in Illinois by customer sector, in US cents per kWh. In 2025 the all sector average was 13.56 US cents/kWh and residential customers paid 17.67 US cents/kWh. 0 5 10 15 20 20012006201120162021
Average retail electricity prices in Illinois by customer sector, in US cents per kWh. In 2025 the all sector average was 13.56 US cents/kWh and residential customers paid 17.67 US cents/kWh.
Annual statistics through 2025, US cents/kWh
Illinois average retail electricity price by sector, 2001 to 2025
YearAll sectorsResidentialCommercialIndustrial
20016.90 US cents/kWh8.71 US cents/kWh7.40 US cents/kWh4.65 US cents/kWh
20026.94 US cents/kWh8.39 US cents/kWh7.52 US cents/kWh4.89 US cents/kWh
20036.86 US cents/kWh8.38 US cents/kWh7.30 US cents/kWh4.86 US cents/kWh
20046.80 US cents/kWh8.37 US cents/kWh7.54 US cents/kWh4.65 US cents/kWh
20056.95 US cents/kWh8.34 US cents/kWh7.75 US cents/kWh4.61 US cents/kWh
20067.07 US cents/kWh8.42 US cents/kWh7.95 US cents/kWh4.69 US cents/kWh
20078.46 US cents/kWh10.12 US cents/kWh8.57 US cents/kWh6.61 US cents/kWh
20089.23 US cents/kWh11.07 US cents/kWh9.25 US cents/kWh7.34 US cents/kWh
20099.15 US cents/kWh11.27 US cents/kWh9.04 US cents/kWh7.01 US cents/kWh
20109.13 US cents/kWh11.52 US cents/kWh8.88 US cents/kWh6.82 US cents/kWh
20118.97 US cents/kWh11.78 US cents/kWh8.64 US cents/kWh6.42 US cents/kWh
20128.40 US cents/kWh11.37 US cents/kWh7.99 US cents/kWh5.80 US cents/kWh
20138.26 US cents/kWh10.63 US cents/kWh8.14 US cents/kWh5.94 US cents/kWh
20149.36 US cents/kWh11.91 US cents/kWh9.26 US cents/kWh6.85 US cents/kWh
20159.40 US cents/kWh12.50 US cents/kWh9.02 US cents/kWh6.67 US cents/kWh
20169.38 US cents/kWh12.54 US cents/kWh9.02 US cents/kWh6.51 US cents/kWh
20179.49 US cents/kWh12.95 US cents/kWh9.09 US cents/kWh6.47 US cents/kWh
20189.60 US cents/kWh12.77 US cents/kWh9.12 US cents/kWh6.80 US cents/kWh
20199.56 US cents/kWh13.03 US cents/kWh9.08 US cents/kWh6.52 US cents/kWh
20209.75 US cents/kWh13.04 US cents/kWh9.15 US cents/kWh6.70 US cents/kWh
202110.14 US cents/kWh13.18 US cents/kWh9.65 US cents/kWh7.30 US cents/kWh
202211.94 US cents/kWh15.65 US cents/kWh11.32 US cents/kWh8.57 US cents/kWh
202311.75 US cents/kWh15.71 US cents/kWh11.24 US cents/kWh8.20 US cents/kWh
202412.21 US cents/kWh15.87 US cents/kWh11.81 US cents/kWh8.83 US cents/kWh
202513.56 US cents/kWh17.67 US cents/kWh13.10 US cents/kWh9.63 US cents/kWh
Sector, 2025Average priceSalesCustomers
All sectors 13.56 US cents/kWh 136 TWh 6,073,397
Residential 17.67 US cents/kWh 46.6 TWh 5,423,184
Commercial 13.10 US cents/kWh 46.4 TWh 644,575
Industrial 9.63 US cents/kWh 42.8 TWh 5,635
Transportation 8.86 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
MonthGenerationAverage price, all sectorsResidential price
August 2026 18.7 TWh 15.44 US cents/kWh 19.32 US cents/kWh
July 2026 19.1 TWh 15.89 US cents/kWh 19.22 US cents/kWh
June 2026 16.6 TWh 15.20 US cents/kWh 19.89 US cents/kWh
May 2026 14.8 TWh 15.86 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 15.7 TWh 13.58 US cents/kWh 18.85 US cents/kWh
February 2026 14.8 TWh 13.91 US cents/kWh 17.83 US cents/kWh
January 2026 18.2 TWh 13.15 US cents/kWh 16.36 US cents/kWh
December 2025 17.6 TWh 13.17 US cents/kWh 17.05 US cents/kWh
November 2025 15.0 TWh 13.49 US cents/kWh 18.28 US cents/kWh
October 2025 15.4 TWh 13.79 US cents/kWh 18.70 US cents/kWh
September 2025 14.7 TWh 14.32 US cents/kWh 19.01 US cents/kWh

Source: U.S. Energy Information Administration (EIA). (US Government work, public domain) Data as of August 2026.

Cite this page
APA 7

World Power Monitor. (2026). Illinois Electricity: Generation Mix and Retail Prices. https://worldpowermonitor.com/us/illinois/

Plain text

World Power Monitor. Illinois Electricity: Generation Mix and Retail Prices. Data as of 2026-08. Data from U.S. Energy Information Administration. https://worldpowermonitor.com/us/illinois/

BibTeX 
@misc{wpm_us_illinois_2026,
  title = {{Illinois Electricity: Generation Mix and Retail Prices}},
  author = {{World Power Monitor}},
  year = {2026},
  note = {Data as of 2026-08. Data from U.S. Energy Information Administration.},
  url = {https://worldpowermonitor.com/us/illinois/}
}

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